fix(deps): update composebom to v2026.06.00

.forgejo/ISSUE_TEMPLATE/bug_report.md

@@ -1,30 +0,0 @@
----
-name: Bug report
-about: Something doesn't work the way it should
-title: ""
-labels:
-  - bug
----
-
-### What happened
-
-
-### What you expected
-
-
-### Steps to reproduce
-1.
-2.
-3.
-
-### Environment
-- Calendula version: <!-- Settings → bottom of the screen -->
-- Android version:
-- Device:
-- Installed from: <!-- official F-Droid / the self-hosted repo / built from source -->
-- Affected calendar: <!-- Google, CalDAV (DAVx5, Nextcloud, …), on-device/local,
-                         subscribed/WebCal, birthdays — provider behaviour differs
-                         a lot per account type, so this often points straight at
-                         the cause -->
-- Time zone: <!-- only if the problem involves dates or all-day events -->
-

.forgejo/ISSUE_TEMPLATE/config.yml

@@ -1,18 +0,0 @@
-# Kept enabled so anything that doesn't fit the four templates still has a way
-# in (the `ToDo` label exists for exactly those).
-blank_issues_enabled: true
-
-contact_links:
-  - name: Translate Calendula
-    url: https://weblate.dev.jeanlucmakiola.de/engage/calendula/
-    about: >-
-      Translations are managed on Weblate, not here — it owns every values-*
-      file, so a hand-edited translation gets overwritten on the next sync.
-      No coding needed: pick or request a language and translate in the browser.
-
-  - name: Contributing guide
-    url: https://codeberg.org/jlmakiola/calendula/src/branch/main/CONTRIBUTING.md
-    about: >-
-      Before opening a pull request: the issue-first workflow, which release
-      branch to target, how to build (there's a submodule), and the
-      architectural rules a change is reviewed against.

.forgejo/ISSUE_TEMPLATE/crash_report.md

@@ -1,27 +0,0 @@
----
-name: Crash report
-about: Report a crash. Calendula can capture this for you (Settings → Report a problem, or the prompt after a crash) — it copies the report to your clipboard and prefills this form.
-title: "Crash: "
-labels:
-  - bug
-  - crash
-  - priority/high
----
-
-<!--
-Thanks for reporting a crash in Calendula!
-
-If the app prefilled this for you, the crash report is already below — just add
-what you were doing and submit. Otherwise, paste the report from your clipboard
-into the code block. The report contains only app/Android/device versions and the
-stack trace — no personal data or calendar content.
--->
-
-### What happened
-
-
-### Crash report
-
-```
-(paste the crash report here)
-```

.forgejo/ISSUE_TEMPLATE/feature_request.md

@@ -1,16 +0,0 @@
----
-name: Feature request
-about: Suggest an idea or improvement
-title: ""
-labels:
-  - feat
----
-
-### What would you like Calendula to do?
-
-
-### Why — what problem does it solve?
-
-
-### Anything else
-<!-- mockups, examples from other apps, alternatives you considered -->

.forgejo/ISSUE_TEMPLATE/question.md

@@ -1,19 +0,0 @@
----
-name: Question
-about: Ask how something works or get help using Calendula
-title: ""
-labels:
-  - question
----
-
-### Your question
-
-
-### What you've tried
-<!-- so far, if anything -->
-
-
-### Context
-- Calendula version: <!-- Settings → bottom of the screen -->
-- Android version:
-- Device:

.forgejo/PULL_REQUEST_TEMPLATE.md

@@ -1,41 +0,0 @@
-<!--
-Thanks for contributing to Calendula!
-
-Please skim CONTRIBUTING.md if you haven't:
-https://codeberg.org/jlmakiola/calendula/src/branch/main/CONTRIBUTING.md
-
-Two things it's easy to get wrong:
-  • Features need a discussed issue first — an undiscussed feature PR may be
-    closed unmerged even when the code is good.
-  • Target the release branch for your issue's milestone (milestone 2.18.0 →
-    release/v2.18.0), not main. If you targeted main, just say so below and it
-    will be retargeted.
--->
-
-### What this changes
-
-
-### Why
-
-<!-- Closes #123 — link the issue this implements or fixes. -->
-
-
-### How it was tested
-
-<!--
-Which of these ran green, and anything you exercised by hand. On-device notes
-are especially useful for UI changes.
-
-  ./gradlew lint test assembleDebug
-  python3 scripts/check_translations.py
--->
-
-
-### Checklist
-
-- [ ] There's an issue for this, and (for a feature) it got a go-ahead
-- [ ] Targeting the release branch for that issue's milestone — or `main`, noted above
-- [ ] `./gradlew lint test assembleDebug` passes locally
-- [ ] No `values-*/strings.xml` touched (Weblate owns those; new English strings in `values/` are fine)
-- [ ] `CHANGELOG.md` updated under `## [Unreleased]`, if the change is user-visible
-- [ ] No planning or design documents committed

.forgejo/workflows/ci.yaml

@@ -1,169 +0,0 @@
-name: CI
-
-# One gate per pull request. Branch pushes no longer trigger CI on their own,
-# so a change is built once on its PR (covering feature -> release/* and
-# release/* -> main) instead of once per push and again on the merge to main.
-# The merge itself is handled by release.yaml, which only does heavy work when
-# the merge actually cuts a release.
-on:
-  pull_request:
-
-# Cancel superseded runs for the same PR.
-concurrency:
-  group: ci-${{ github.ref }}
-  cancel-in-progress: true
-
-jobs:
-  # Single job named `ci` so the required "CI" status check is always reported,
-  # even for docs-only PRs: those just skip the Android build and the job still
-  # succeeds (fast green check) instead of being filtered out and leaving the
-  # required check pending forever.
-  ci:
-    runs-on: docker
-    env:
-      ANDROID_HOME: /opt/android-sdk
-      ANDROID_SDK_ROOT: /opt/android-sdk
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v4
-        with:
-          # Full history so the base..HEAD diff below has a merge-base.
-          fetch-depth: 0
-          submodules: recursive
-
-      # Cheap, always-on guard: the release build must stay reproducible for the
-      # official F-Droid repo (no AGP VCS-info embedding). Runs regardless of
-      # change scope so a regression can't slip through on a "docs-only" PR.
-      - name: Reproducible-release invariant
-        run: bash scripts/check_reproducible_release.sh
-
-      # Decide whether anything that affects the app build changed. Docs, store
-      # metadata, licence texts and forge housekeeping don't, so those PRs skip
-      # the SDK + Gradle work below but still report a green `ci`.
-      - name: Classify change scope
-        id: scope
-        env:
-          # Deliberately a skip-list, not a build-list: a path nobody thought
-          # about defaults to building. Only paths the Gradle build provably
-          # never reads belong here — note that the workflows themselves, the
-          # `.gitmodules` submodule pointer and `scripts/` are *not* in it.
-          SKIP_RE: '(\.md$|^docs/|^fastlane/|^fdroid-metadata/|^licenses/|^\.planning/|^\.(forgejo|gitea)/ISSUE_TEMPLATE/|^\.editorconfig$|^\.gitattributes$|^\.gitignore$|^renovate\.json5$|^LICENSE$)'
-        run: |
-          set -e
-          BASE="${{ github.base_ref }}"
-          # Normally the bare branch name; tolerate a full ref, which would
-          # otherwise make the merge-base lookup fail and quietly degrade this
-          # guard into "always build".
-          BASE="${BASE#refs/heads/}"
-          if [ -z "$BASE" ]; then
-            echo "No base branch on this event — running the full build to be safe."
-            echo "code=true" >> "$GITHUB_OUTPUT"
-            exit 0
-          fi
-          # Full (not --depth=1) base fetch so the merge-base is present even when
-          # the PR branch forked several commits back; a shallow tip has no merge
-          # base with a divergent branch and `git diff base...HEAD` aborts.
-          git fetch --no-tags origin "$BASE"
-          MB=$(git merge-base "origin/$BASE" HEAD 2>/dev/null || true)
-          if [ -z "$MB" ]; then
-            # No common ancestor available — don't risk skipping the build.
-            echo "No merge base with origin/$BASE — running the full build to be safe."
-            echo "code=true" >> "$GITHUB_OUTPUT"
-            exit 0
-          fi
-          CHANGED=$(git diff --name-only "$MB" HEAD)
-          echo "Changed files:"; echo "$CHANGED"
-          RELEVANT=$(echo "$CHANGED" | grep -vE "$SKIP_RE" || true)
-          if [ -n "$RELEVANT" ]; then
-            # Naming them makes "why did my docs PR build for four minutes?"
-            # answerable from the log alone.
-            echo "Build-relevant changes:"; echo "$RELEVANT"
-            echo "code=true" >> "$GITHUB_OUTPUT"
-          else
-            echo "Docs/metadata-only change — skipping the Android build."
-            echo "code=false" >> "$GITHUB_OUTPUT"
-          fi
-
-      - name: Setup Java
-        if: steps.scope.outputs.code == 'true'
-        uses: actions/setup-java@v4
-        with:
-          distribution: 'zulu'
-          java-version: '17'
-
-      # Fully qualified on purpose. Codeberg resolves bare `uses:` refs against
-      # data.forgejo.org, Forgejo's own action mirror — actions/checkout,
-      # setup-java and cache all exist there, but android-actions/setup-android
-      # does not, and the job dies with "repository not found". Gitea's instance
-      # defaults to GitHub, which is why this never surfaced before the split.
-      - name: Setup Android SDK
-        if: steps.scope.outputs.code == 'true'
-        uses: https://github.com/android-actions/setup-android@v3
-        with:
-          # Default ("tools platform-tools") drags in the Android Emulator
-          # (~300 MB) which the build never uses.
-          packages: ''
-
-      - name: Setup Android SDK cache
-        if: steps.scope.outputs.code == 'true'
-        uses: actions/cache@v4
-        with:
-          path: /opt/android-sdk
-          key: ${{ runner.os }}-android-sdk-37-36.0.0
-
-      - name: Install Android SDK packages
-        if: steps.scope.outputs.code == 'true'
-        run: |
-          yes | sdkmanager --licenses >/dev/null || true
-          sdkmanager \
-            "platform-tools" \
-            "platforms;android-37.0" \
-            "build-tools;36.0.0"
-
-      - name: Setup Gradle cache
-        if: steps.scope.outputs.code == 'true'
-        uses: actions/cache@v4
-        with:
-          path: |
-            ~/.gradle/caches
-            ~/.gradle/wrapper
-          key: ${{ runner.os }}-gradle-${{ hashFiles('**/*.gradle*', '**/gradle-wrapper.properties', 'gradle/libs.versions.toml') }}
-          restore-keys: |
-            ${{ runner.os }}-gradle-
-
-      - name: Grant execute permission for gradlew
-        if: steps.scope.outputs.code == 'true'
-        run: chmod +x ./gradlew
-
-      # No --no-daemon: the daemon lives only as long as this job container
-      # and lets the following steps skip JVM startup + reconfiguration.
-      - name: Lint (debug variant only)
-        if: steps.scope.outputs.code == 'true'
-        run: ./gradlew lintDebug
-
-      - name: Unit tests
-        if: steps.scope.outputs.code == 'true'
-        run: ./gradlew testDebugUnitTest
-
-      - name: Assemble debug APK
-        if: steps.scope.outputs.code == 'true'
-        run: ./gradlew assembleDebug
-
-      - name: Trivy filesystem scan
-        if: steps.scope.outputs.code == 'true'
-        run: |
-          set -e
-          SUDO=""
-          if command -v sudo >/dev/null 2>&1; then
-            SUDO="sudo"
-          fi
-          if command -v apt-get >/dev/null 2>&1; then
-            $SUDO apt-get update
-            $SUDO apt-get install -y wget apt-transport-https gnupg lsb-release
-            wget -qO - https://aquasecurity.github.io/trivy-repo/deb/public.key | gpg --dearmor | $SUDO tee /usr/share/keyrings/trivy.gpg > /dev/null
-            echo "deb [signed-by=/usr/share/keyrings/trivy.gpg] https://aquasecurity.github.io/trivy-repo/deb generic main" | $SUDO tee /etc/apt/sources.list.d/trivy.list
-            $SUDO apt-get update
-            $SUDO apt-get install -y trivy
-          fi
-          trivy filesystem --severity HIGH,CRITICAL --exit-code 0 .
-        continue-on-error: true

.gitea/workflows/ci.yaml

@@ -0,0 +1,93 @@
+name: CI
+
+on:
+  push:
+    branches:
+      - '**'
+    tags-ignore:
+      - '**'
+
+# Cancel superseded runs on the same branch.
+concurrency:
+  group: ci-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  ci:
+    runs-on: docker
+    env:
+      ANDROID_HOME: /opt/android-sdk
+      ANDROID_SDK_ROOT: /opt/android-sdk
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Java
+        uses: actions/setup-java@v4
+        with:
+          distribution: 'zulu'
+          java-version: '17'
+
+      - name: Setup Android SDK
+        uses: android-actions/setup-android@v3
+        with:
+          # Default ("tools platform-tools") drags in the Android Emulator
+          # (~300 MB) which the build never uses.
+          packages: ''
+
+      - name: Setup Android SDK cache
+        uses: actions/cache@v4
+        with:
+          path: /opt/android-sdk
+          key: ${{ runner.os }}-android-sdk-37-36.0.0
+
+      - name: Install Android SDK packages
+        run: |
+          yes | sdkmanager --licenses >/dev/null || true
+          sdkmanager \
+            "platform-tools" \
+            "platforms;android-37.0" \
+            "build-tools;36.0.0"
+
+      - name: Setup Gradle cache
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/.gradle/caches
+            ~/.gradle/wrapper
+          key: ${{ runner.os }}-gradle-${{ hashFiles('**/*.gradle*', '**/gradle-wrapper.properties', 'gradle/libs.versions.toml') }}
+          restore-keys: |
+            ${{ runner.os }}-gradle-
+
+      - name: Grant execute permission for gradlew
+        run: chmod +x ./gradlew
+
+      # No --no-daemon: the daemon lives only as long as this job container
+      # and lets the following steps skip JVM startup + reconfiguration.
+      - name: Lint (debug variant only)
+        run: ./gradlew lintDebug
+
+      - name: Unit tests
+        run: ./gradlew testDebugUnitTest
+
+      - name: Assemble debug APK
+        run: ./gradlew assembleDebug
+
+      - name: Trivy filesystem scan
+        if: github.ref == 'refs/heads/main'
+        run: |
+          set -e
+          SUDO=""
+          if command -v sudo >/dev/null 2>&1; then
+            SUDO="sudo"
+          fi
+          if command -v apt-get >/dev/null 2>&1; then
+            $SUDO apt-get update
+            $SUDO apt-get install -y wget apt-transport-https gnupg lsb-release
+            wget -qO - https://aquasecurity.github.io/trivy-repo/deb/public.key | gpg --dearmor | $SUDO tee /usr/share/keyrings/trivy.gpg > /dev/null
+            echo "deb [signed-by=/usr/share/keyrings/trivy.gpg] https://aquasecurity.github.io/trivy-repo/deb generic main" | $SUDO tee /etc/apt/sources.list.d/trivy.list
+            $SUDO apt-get update
+            $SUDO apt-get install -y trivy
+          fi
+          trivy filesystem --severity HIGH,CRITICAL --exit-code 0 .
+        continue-on-error: true

.gitea/workflows/release.yaml

@@ -1,128 +1,78 @@
-name: Release — F-Droid repo + Gitea/Codeberg release + Play
+name: Release — F-Droid repo + Gitea release
 
-# A release is cut by merging a release branch into main with a bumped
-# versionName (see docs/RELEASING.md). This workflow reads that versionName and,
-# if no matching tag exists yet, runs tests, builds + signs the APK, publishes
-# it to the F-Droid repo, creates the vX.Y.Z tag + Gitea release, and mirrors
-# that release to Codeberg with the signed APK + a SHA-256 checksum as a
-# direct-download channel — the tag is an output of the pipeline, not its
-# trigger. Ordinary merges (no version bump) fall through `detect` and do
-# nothing.
-#
-# A trailing `play` job then uploads the App Bundle to Google Play. It is last
-# and separate because Play is the only channel that can reject a good build for
-# reasons the pipeline can't see, and that must not endanger a release which has
-# already shipped to F-Droid and Codeberg. It skips cleanly until the
-# PLAY_SERVICE_ACCOUNT_JSON secret exists.
-#
-# A manual workflow_dispatch (from a branch) runs the re-sign-only recovery
-# path: it re-signs the existing F-Droid index with the repo key and re-uploads,
-# without building an APK or creating a release. Used for key rotation / repo
-# recovery.
 on:
   push:
-    branches: [main]
+    tags:
+      - '*'
   workflow_dispatch:
 
-concurrency:
-  group: release
-  cancel-in-progress: false
-
 jobs:
-  # Cheap gate: resolve the version from the committed build.gradle and decide
-  # whether this push actually cuts a new release (no tag for it yet). Keeps the
-  # heavy job from running on every merge to main.
-  detect:
-    # Gitea only. The workflow directory split already keeps this file invisible
-    # to Codeberg — Forgejo's lookup is first-match-wins, and .forgejo/workflows
-    # exists — but that only holds while .forgejo/ is non-empty. Move the last
-    # file out of it and Codeberg would fall back to .gitea/workflows and start
-    # running the release pipeline on the contributor-facing runner, with no
-    # secrets. repository_owner differs between the two forges regardless of
-    # URL, proxy or instance rename, so this closes it permanently.
-    if: github.repository_owner == 'makiolaj'
-    runs-on: docker
-    outputs:
-      is_release: ${{ steps.v.outputs.is_release }}
-      version: ${{ steps.v.outputs.version }}
-      version_code: ${{ steps.v.outputs.version_code }}
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v4
-        with:
-          submodules: recursive
-
-      - name: Resolve version and whether it is a new release
-        id: v
-        env:
-          # Tags are read from Codeberg, which is canonical — deliberately NOT
-          # from the Gitea API this workflow runs on. The Codeberg -> Gitea sync
-          # is a push mirror, i.e. `git push --mirror`, which deletes refs the
-          # source does not have. A tag minted here on Gitea is therefore wiped
-          # by the next sync (Codeberg does not have it yet) and only reappears
-          # once the tag push at the end of this workflow propagates back.
-          # Asking Gitea inside that window would report "no tag" for a release
-          # that already shipped, and cut it a second time.
-          # Public repo, so this read needs no token.
-          TAG_API: https://codeberg.org/api/v1/repos/jlmakiola/calendula
-        run: |
-          set -e
-          VERSION=$(grep -oP 'versionName\s*=\s*"\K[^"]+' app/build.gradle.kts)
-          if [ -z "$VERSION" ]; then echo "No versionName in app/build.gradle.kts" >&2; exit 1; fi
-          MAJOR=$(echo "$VERSION" | cut -d. -f1); MINOR=$(echo "$VERSION" | cut -d. -f2); PATCH=$(echo "$VERSION" | cut -d. -f3)
-          MAJOR=${MAJOR:-0}; MINOR=${MINOR:-0}; PATCH=${PATCH:-0}
-          VERSION_CODE=$(( MAJOR * 10000 + MINOR * 100 + PATCH ))
-          echo "version=$VERSION" >> "$GITHUB_OUTPUT"
-          echo "version_code=$VERSION_CODE" >> "$GITHUB_OUTPUT"
-          echo "Resolved version $VERSION (code $VERSION_CODE)"
-          if [ "${{ github.event_name }}" = "workflow_dispatch" ]; then
-            echo "Manual dispatch — re-sign path, not a release."
-            echo "is_release=false" >> "$GITHUB_OUTPUT"
-            exit 0
-          fi
-          # A tag for this version already existing means the release shipped on
-          # an earlier push; do nothing. Absent => this merge cuts the release.
-          #
-          # Anything other than a clean 200/404 is treated as fatal rather than
-          # as "no tag". A Codeberg outage or a network blip would otherwise
-          # read as absent and re-cut a release that has already shipped —
-          # republishing to F-Droid and Play. Failing here is recoverable; a
-          # duplicate release is not.
-          STATUS=$(curl -s -o /dev/null -w '%{http_code}' "$TAG_API/git/refs/tags/v$VERSION" || echo 000)
-          case "$STATUS" in
-            200)
-              echo "Tag v$VERSION already exists on Codeberg — nothing to release."
-              echo "is_release=false" >> "$GITHUB_OUTPUT"
-              ;;
-            404)
-              echo "No tag for v$VERSION on Codeberg yet — cutting the release."
-              echo "is_release=true" >> "$GITHUB_OUTPUT"
-              ;;
-            *)
-              echo "Codeberg tag lookup for v$VERSION returned HTTP $STATUS." >&2
-              echo "Refusing to guess: treating this as 'no tag' could re-cut a shipped release." >&2
-              exit 1
-              ;;
-          esac
-
-  # Releases: build + sign + publish, then mint the tag and Gitea release.
-  # Also runs on manual dispatch, where it skips the build and just re-signs and
-  # re-uploads the existing index (recovery path).
-  release:
-    needs: detect
-    if: needs.detect.outputs.is_release == 'true' || github.event_name == 'workflow_dispatch'
+  ci:
     runs-on: docker
     env:
       ANDROID_HOME: /opt/android-sdk
       ANDROID_SDK_ROOT: /opt/android-sdk
-      VERSION: ${{ needs.detect.outputs.version }}
-      VERSION_CODE: ${{ needs.detect.outputs.version_code }}
-      IS_RELEASE: ${{ needs.detect.outputs.is_release }}
     steps:
       - name: Checkout
         uses: actions/checkout@v4
+
+      - name: Setup Java
+        uses: actions/setup-java@v4
         with:
-          submodules: recursive
+          distribution: 'zulu'
+          java-version: '17'
+
+      - name: Setup Android SDK
+        uses: android-actions/setup-android@v3
+        with:
+          packages: ''
+
+      - name: Setup Android SDK cache
+        uses: actions/cache@v4
+        with:
+          path: /opt/android-sdk
+          key: ${{ runner.os }}-android-sdk-37-36.0.0
+
+      - name: Install Android SDK packages
+        run: |
+          yes | sdkmanager --licenses >/dev/null || true
+          sdkmanager \
+            "platform-tools" \
+            "platforms;android-37.0" \
+            "build-tools;36.0.0"
+
+      - name: Setup Gradle cache
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/.gradle/caches
+            ~/.gradle/wrapper
+          key: ${{ runner.os }}-gradle-${{ hashFiles('**/*.gradle*', '**/gradle-wrapper.properties', 'gradle/libs.versions.toml') }}
+          restore-keys: |
+            ${{ runner.os }}-gradle-
+
+      - name: Grant execute permission for gradlew
+        run: chmod +x ./gradlew
+
+      # Lint already enforced on every push to main via ci.yaml.
+      # Release sanity only re-runs tests + a debug build to catch
+      # any tag-resolved drift (e.g. version code substitution issues).
+
+      - name: Unit tests
+        run: ./gradlew testDebugUnitTest
+
+      - name: Assemble debug APK (sanity)
+        run: ./gradlew assembleDebug
+
+  build-and-deploy:
+    needs: ci
+    runs-on: docker
+    env:
+      ANDROID_HOME: /opt/android-sdk
+      ANDROID_SDK_ROOT: /opt/android-sdk
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
 
       - name: Setup Java
         uses: actions/setup-java@v4
@@ -171,26 +121,31 @@ jobs:
             $SUDO apk add --no-cache jq
           fi
 
-      - name: Grant execute permission for gradlew
-        run: chmod +x ./gradlew
-
-      # The committed versionName is the source of truth. Pin versionCode to the
-      # value derived from it so the published APK's code is always
-      # MAJOR*10000 + MINOR*100 + PATCH even if the committed code was forgotten.
-      - name: Pin versionCode to versionName
-        if: env.IS_RELEASE == 'true'
+      # Tag-only build steps. On a manual workflow_dispatch (ref = a branch,
+      # not a tag) these are skipped: the job then just re-signs the existing
+      # index with the configured repo key and re-uploads — used for key
+      # rotation / repo recovery without publishing a new APK.
+      - name: Set version from git tag
+        if: startsWith(github.ref, 'refs/tags/')
         run: |
           set -e
+          RAW_TAG="${GITHUB_REF_NAME:-${GITHUB_REF##*/}}"
+          VERSION="${RAW_TAG#v}"
+          MAJOR=$(echo "$VERSION" | cut -d. -f1)
+          MINOR=$(echo "$VERSION" | cut -d. -f2)
+          PATCH=$(echo "$VERSION" | cut -d. -f3)
+          MAJOR=${MAJOR:-0}; MINOR=${MINOR:-0}; PATCH=${PATCH:-0}
+          VERSION_CODE=$(( MAJOR * 10000 + MINOR * 100 + PATCH ))
+          echo "Version: $VERSION, VersionCode: $VERSION_CODE"
+          sed -i "s/versionName = \".*\"/versionName = \"$VERSION\"/" app/build.gradle.kts
           sed -i "s/versionCode = .*/versionCode = $VERSION_CODE/" app/build.gradle.kts
           grep -E 'versionName|versionCode' app/build.gradle.kts
-
-      # Test the exact commit being shipped (only on a real release).
-      - name: Unit tests
-        if: env.IS_RELEASE == 'true'
-        run: ./gradlew testDebugUnitTest
+          # Export for later steps (F-Droid changelog, mapping asset name).
+          echo "VERSION=$VERSION" >> "$GITHUB_ENV"
+          echo "VERSION_CODE=$VERSION_CODE" >> "$GITHUB_ENV"
 
       - name: Setup Android Keystore
-        if: env.IS_RELEASE == 'true'
+        if: startsWith(github.ref, 'refs/tags/')
         env:
           KEYSTORE_BASE64: ${{ secrets.KEYSTORE_BASE64 }}
           KEY_PASSWORD: ${{ secrets.KEY_PASSWORD }}
@@ -205,8 +160,11 @@ jobs:
           storeFile=upload-keystore.jks
           EOF
 
+      - name: Grant execute permission for gradlew
+        run: chmod +x ./gradlew
+
       - name: Build release APK
-        if: env.IS_RELEASE == 'true'
+        if: startsWith(github.ref, 'refs/tags/')
         run: ./gradlew assembleRelease
 
       - name: Setup F-Droid Server Tools
@@ -244,7 +202,8 @@ jobs:
           set -euo pipefail
           # Fail loudly if the repo key is not configured. NEVER auto-generate
           # one: a fresh key changes the repo fingerprint and breaks every
-          # user's pinned repo.
+          # user's pinned repo. (Replaces the old `fdroid update --create-key`
+          # path, which silently rotated the key on a wiped server.)
           if [ -z "${FDROID_KEYSTORE_BASE64:-}" ] || [ -z "${FDROID_CONFIG_BASE64:-}" ]; then
             echo "ERROR: FDROID_KEYSTORE_BASE64 / FDROID_CONFIG_BASE64 secrets are not set." >&2
             echo "Refusing to continue — will not auto-generate a new repo key." >&2
@@ -257,34 +216,42 @@ jobs:
           mkdir -p fdroid/repo/icons
 
       - name: Copy new APK to repo
-        if: env.IS_RELEASE == 'true'
+        if: startsWith(github.ref, 'refs/tags/')
         run: |
           set -e
           mkdir -p fdroid/repo
-          cp app/build/outputs/apk/release/app-release.apk "fdroid/repo/calendula_v${VERSION}.apk"
+          REF_NAME="${GITHUB_REF_NAME:-${GITHUB_REF##*/}}"
+          SAFE_REF_NAME="$(echo "$REF_NAME" | tr '/ ' '__' | tr -cd '[:alnum:]_.-')"
+          if [ -z "$SAFE_REF_NAME" ]; then
+            SAFE_REF_NAME="${GITHUB_SHA:-manual}"
+          fi
+          cp app/build/outputs/apk/release/app-release.apk "fdroid/repo/calendula_${SAFE_REF_NAME}.apk"
 
-      # Per-version "What's New": ensure this version's changelog exists in the
-      # fastlane tree. The committed hand-written summary (kept under Play's
-      # 500-char cap) is used as-is; only if it is missing does the script fall
-      # back to CHANGELOG.md, so the self-hosted repo never depends on the
-      # commit having happened. The transform below then carries it across.
-      - name: Ensure this version's changelog is in the fastlane tree
-        if: env.IS_RELEASE == 'true'
-        run: bash scripts/sync_changelog_to_fastlane.sh
-
-      - name: Build F-Droid metadata from fastlane (single source of truth)
+      - name: Copy metadata to F-Droid repo
         run: |
           mkdir -p fdroid/metadata
-          # App-level control file (Categories/License/links) for the self-hosted
-          # repo's `fdroid update`.
-          cp fdroid-metadata/de.jeanlucmakiola.calendula.yml fdroid/metadata/
-          # Localized text + graphics + per-version changelogs come from the SAME
-          # fastlane tree the official F-Droid repo harvests from source,
-          # transformed into the F-Droid repo "localized" layout. One source of
-          # truth, both channels.
-          bash scripts/fastlane_to_fdroid_localized.sh \
-            fastlane/metadata/android \
-            fdroid/metadata/de.jeanlucmakiola.calendula
+          cp -r fdroid-metadata/* fdroid/metadata/
+
+      # Per-version "What's New" for F-Droid clients: the tag's CHANGELOG
+      # section written to changelogs/<versionCode>.txt (same extraction as the
+      # Gitea release notes). en-US only — F-Droid falls back to it for locales
+      # without their own changelog. fdroid update bakes this into the index.
+      - name: Generate F-Droid changelog for this version
+        if: startsWith(github.ref, 'refs/tags/')
+        run: |
+          set -e
+          awk -v ver="$VERSION" '
+            $0 ~ "^## \\[" ver "\\]" { flag = 1; next }
+            /^## \[/ { flag = 0 }
+            flag' CHANGELOG.md > /tmp/changelog.txt
+          sed -i -e '/./,$!d' /tmp/changelog.txt
+          if [ ! -s /tmp/changelog.txt ]; then
+            echo "See CHANGELOG.md for $VERSION." > /tmp/changelog.txt
+          fi
+          CL_DIR="fdroid/metadata/de.jeanlucmakiola.calendula/en-US/changelogs"
+          mkdir -p "$CL_DIR"
+          cp /tmp/changelog.txt "$CL_DIR/${VERSION_CODE}.txt"
+          echo "Wrote $CL_DIR/${VERSION_CODE}.txt"
 
       - name: Generate F-Droid Index
         run: |
@@ -305,46 +272,97 @@ jobs:
           SFTP
           # Publish the signed repo/ plus metadata/ (descriptions, screenshots,
           # per-version changelogs) so changelog history survives across
-          # releases. keystore.p12 and config.yml are NEVER uploaded.
+          # releases. keystore.p12 and config.yml are NEVER uploaded, so they
+          # can't re-enter the web-served tree; nginx serves only repo/ anyway.
           sshpass -p "$PASS" scp $SSH_OPTS -r fdroid/repo fdroid/metadata "$USER@$HOST:dev/fdroid/"
 
-      # The APK is published and the index re-signed — now record the release.
-      # Creating it with target_commitish makes Gitea create the vX.Y.Z tag at
-      # this commit, so the tag only ever marks a fully-shipped release (and a
-      # failure before here leaves no tag, so re-running the workflow retries).
-      - name: Create tag + Gitea release
-        if: env.IS_RELEASE == 'true'
+      # Archive the R8 mapping so user crash stacktraces stay deobfuscatable.
+      # Attached to the Gitea release (it's not an APK, so it fits the
+      # no-binaries rule). Best-effort: never fail a release over it.
+      - name: Attach R8 mapping to Gitea release
+        if: startsWith(github.ref, 'refs/tags/')
+        continue-on-error: true
         env:
           TOKEN: ${{ secrets.GITHUB_TOKEN }}
           API: ${{ github.server_url }}/api/v1/repos/${{ github.repository }}
-          SHA: ${{ github.sha }}
         run: |
           set -e
-          TAG="v$VERSION"
-          # Notes = this version's CHANGELOG section.
+          MAP="app/build/outputs/mapping/release/mapping.txt"
+          if [ ! -f "$MAP" ]; then echo "No mapping.txt (R8 off?) — skipping."; exit 0; fi
+          TAG="${GITHUB_REF_NAME:-${GITHUB_REF##*/}}"
+          ASSET="mapping-${VERSION:-$TAG}.txt.gz"
+          gzip -c "$MAP" > "/tmp/$ASSET"
+          # The release is created by the gitea-release job; ensure it exists
+          # (idempotent) so this job doesn't race it to a 404.
+          ID=$(curl -s -H "Authorization: token $TOKEN" "$API/releases/tags/$TAG" | jq -r '.id // empty')
+          if [ -z "$ID" ]; then
+            ID=$(curl -s -X POST -H "Authorization: token $TOKEN" \
+              -H "Content-Type: application/json" \
+              -d "{\"tag_name\":\"$TAG\",\"name\":\"$TAG\"}" \
+              "$API/releases" | jq -r '.id // empty')
+          fi
+          if [ -z "$ID" ]; then echo "Could not resolve release id — skipping."; exit 0; fi
+          # Replace any prior asset of the same name (re-run safe).
+          OLD=$(curl -s -H "Authorization: token $TOKEN" "$API/releases/$ID/assets" \
+            | jq -r --arg n "$ASSET" '.[] | select(.name==$n) | .id')
+          [ -n "$OLD" ] && curl -s -X DELETE -H "Authorization: token $TOKEN" "$API/releases/$ID/assets/$OLD" >/dev/null || true
+          curl -s -X POST -H "Authorization: token $TOKEN" \
+            -F "attachment=@/tmp/$ASSET" \
+            "$API/releases/$ID/assets?name=$ASSET" -o /dev/null -w "asset upload HTTP %{http_code}\n"
+
+  # A Gitea release per tag, carrying the tag's CHANGELOG section as its
+  # notes. Deliberately no APK assets — distribution stays with the F-Droid
+  # repo; the release is the human-readable record. Gated on the tests-only
+  # ci job (not the deploy) so notes appear even if the F-Droid upload has
+  # an infrastructure hiccup.
+  gitea-release:
+    needs: ci
+    if: startsWith(github.ref, 'refs/tags/')
+    runs-on: docker
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Extract changelog section for this tag
+        run: |
+          set -e
+          TAG="${GITHUB_REF_NAME:-${GITHUB_REF##*/}}"
+          VERSION="${TAG#v}"
+          # Everything between "## [<version>]" and the next "## [" heading.
           awk -v ver="$VERSION" '
             $0 ~ "^## \\[" ver "\\]" { flag = 1; next }
             /^## \[/ { flag = 0 }
             flag' CHANGELOG.md > release-notes.md
+          # Trim leading blank lines.
           sed -i -e '/./,$!d' release-notes.md
           if [ ! -s release-notes.md ]; then
             echo "_No changelog entry for ${VERSION} — see CHANGELOG.md._" > release-notes.md
           fi
-          python3 - "$TAG" "$SHA" <<'PY' > payload.json
+          echo "--- release notes ---"
+          cat release-notes.md
+
+      - name: Create Gitea release
+        env:
+          TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          API: ${{ github.server_url }}/api/v1/repos/${{ github.repository }}
+        run: |
+          set -e
+          TAG="${GITHUB_REF_NAME:-${GITHUB_REF##*/}}"
+          python3 - "$TAG" <<'PY' > payload.json
           import json, sys
           print(json.dumps({
               "tag_name": sys.argv[1],
-              "target_commitish": sys.argv[2],
               "name": sys.argv[1],
               "body": open("release-notes.md").read(),
               "draft": False,
               "prerelease": False,
           }))
           PY
-          # Upsert (re-run safe): PATCH if a release for the tag already exists,
-          # else POST a new one (which also creates the tag at target_commitish).
+          # Upsert: the build-and-deploy job may have created a bare release
+          # first (to attach the mapping asset), so PATCH the notes if it
+          # exists, otherwise POST a new one. Both paths are re-run safe.
           curl -s -H "Authorization: token $TOKEN" "$API/releases/tags/$TAG" > existing.json
-          ID=$(jq -r '.id // empty' existing.json 2>/dev/null || true)
+          ID=$(python3 -c "import json,sys; d=json.load(open('existing.json')); print(d.get('id',''))" 2>/dev/null || true)
           if [ -n "$ID" ]; then
             CODE=$(curl -s -o response.json -w '%{http_code}' -X PATCH \
               -H "Authorization: token $TOKEN" -H "Content-Type: application/json" \
@@ -358,298 +376,6 @@ jobs:
           fi
           cat response.json
           if [ "$CODE" != "$OK" ]; then
-            echo "Release upsert failed with HTTP $CODE (expected $OK)" >&2
+            echo "Release upsert failed with HTTP $CODE (expected $OK)"
             exit 1
           fi
-          echo "Created/updated release $TAG at $SHA"
-
-      # Archive the R8 mapping so user crash stacktraces stay deobfuscatable.
-      # Attached to the release (it's not an APK, so it fits the no-binaries
-      # rule). Best-effort: never fail a release over it.
-      - name: Attach R8 mapping to Gitea release
-        if: env.IS_RELEASE == 'true'
-        continue-on-error: true
-        env:
-          TOKEN: ${{ secrets.GITHUB_TOKEN }}
-          API: ${{ github.server_url }}/api/v1/repos/${{ github.repository }}
-        run: |
-          set -e
-          MAP="app/build/outputs/mapping/release/mapping.txt"
-          if [ ! -f "$MAP" ]; then echo "No mapping.txt (R8 off?) — skipping."; exit 0; fi
-          TAG="v$VERSION"
-          ASSET="mapping-${VERSION}.txt.gz"
-          gzip -c "$MAP" > "/tmp/$ASSET"
-          ID=$(curl -s -H "Authorization: token $TOKEN" "$API/releases/tags/$TAG" | jq -r '.id // empty')
-          if [ -z "$ID" ]; then echo "Could not resolve release id — skipping."; exit 0; fi
-          # Replace any prior asset of the same name (re-run safe).
-          OLD=$(curl -s -H "Authorization: token $TOKEN" "$API/releases/$ID/assets" \
-            | jq -r --arg n "$ASSET" '.[] | select(.name==$n) | .id')
-          [ -n "$OLD" ] && curl -s -X DELETE -H "Authorization: token $TOKEN" "$API/releases/$ID/assets/$OLD" >/dev/null || true
-          curl -s -X POST -H "Authorization: token $TOKEN" \
-            -F "attachment=@/tmp/$ASSET" \
-            "$API/releases/$ID/assets?name=$ASSET" -o /dev/null -w "asset upload HTTP %{http_code}\n"
-
-      # Mirror the release to the Codeberg mirror as a direct-download channel
-      # for users who don't want F-Droid. Gitea already push-mirrors branches +
-      # tags to Codeberg, but releases aren't git objects so they don't sync —
-      # we create the release there over the API and attach the signed APK plus
-      # a SHA-256 checksum. The APK is identical to the F-Droid one (same app
-      # key), so this adds no trust surface. Best-effort: a Codeberg outage
-      # (it 504s under load) must never fail an already-published F-Droid
-      # release. Needs the CODEBERG_RELEASE_TOKEN secret; skips cleanly if unset.
-      - name: Publish release to Codeberg
-        if: env.IS_RELEASE == 'true'
-        continue-on-error: true
-        env:
-          TOKEN: ${{ secrets.CODEBERG_RELEASE_TOKEN }}
-          API: https://codeberg.org/api/v1/repos/jlmakiola/calendula
-          SHA: ${{ github.sha }}
-        run: |
-          set -e
-          if [ -z "${TOKEN:-}" ]; then
-            echo "CODEBERG_RELEASE_TOKEN not set — skipping Codeberg publish."
-            exit 0
-          fi
-          TAG="v$VERSION"
-          APK="app/build/outputs/apk/release/app-release.apk"
-          if [ ! -f "$APK" ]; then echo "No release APK found — skipping." >&2; exit 1; fi
-          ASSET_APK="calendula_v${VERSION}.apk"
-          ASSET_SUM="${ASSET_APK}.sha256"
-          cp "$APK" "/tmp/$ASSET_APK"
-          ( cd /tmp && sha256sum "$ASSET_APK" > "$ASSET_SUM" )
-
-          # Release notes: reuse the section extracted for the Gitea release,
-          # fall back to the CHANGELOG entry if that step's file is gone.
-          if [ ! -s release-notes.md ]; then
-            awk -v ver="$VERSION" '
-              $0 ~ "^## \\[" ver "\\]" { flag = 1; next }
-              /^## \[/ { flag = 0 }
-              flag' CHANGELOG.md > release-notes.md
-            sed -i -e '/./,$!d' release-notes.md
-          fi
-          [ -s release-notes.md ] || echo "_See CHANGELOG.md for ${VERSION}._" > release-notes.md
-          # The pipeline creates the tag via the Gitea API, which the push mirror
-          # (sync_on_commit only fires on real git pushes) doesn't propagate
-          # promptly — so a release POST that carries a target_commitish can
-          # outrun the mirror and 500 on a commit/tag Codeberg hasn't received.
-          # Push the tag straight to Codeberg so it's guaranteed present, then
-          # attach the release to that existing tag with NO target_commitish
-          # (which is what triggered the 500).
-          git tag -f "$TAG" "$SHA"
-          git push -f "https://jlmakiola:${TOKEN}@codeberg.org/jlmakiola/calendula.git" \
-            "refs/tags/$TAG"
-          python3 - "$TAG" <<'PY' > cb-payload.json
-          import json, sys
-          print(json.dumps({
-              "tag_name": sys.argv[1],
-              "name": sys.argv[1],
-              "body": open("release-notes.md").read(),
-              "draft": False,
-              "prerelease": False,
-          }))
-          PY
-          # Create (or update) the release. Codeberg 500s on a POST/GET against a
-          # tag it has only just received — the release request outruns the
-          # indexing of the ref we pushed a moment ago — so a single attempt kept
-          # failing and skipping the mirror even though the very same call
-          # succeeds seconds later. Retry with backoff, and PATCH in place if a
-          # release already exists (re-run safe). A 5xx body still exits curl 0,
-          # so the loop, not `set -e`, controls the flow.
-          ID=""
-          for attempt in 1 2 3 4 5 6; do
-            EXIST=$(curl -s -H "Authorization: token $TOKEN" "$API/releases/tags/$TAG" | jq -r '.id // empty' 2>/dev/null || true)
-            if [ -n "$EXIST" ]; then
-              curl -s -o /dev/null -w "release PATCH HTTP %{http_code}\n" -X PATCH \
-                -H "Authorization: token $TOKEN" -H "Content-Type: application/json" \
-                -d @cb-payload.json "$API/releases/$EXIST"
-              ID="$EXIST"; break
-            fi
-            CODE=$(curl -s -o cb-response.json -w "%{http_code}" -X POST \
-              -H "Authorization: token $TOKEN" -H "Content-Type: application/json" \
-              -d @cb-payload.json "$API/releases")
-            echo "release POST attempt $attempt HTTP $CODE"
-            ID=$(jq -r '.id // empty' cb-response.json 2>/dev/null || true)
-            [ -n "$ID" ] && break
-            sleep $((attempt * 10))
-          done
-          if [ -z "$ID" ]; then echo "Could not resolve Codeberg release id after retries." >&2; exit 1; fi
-
-          # Attach APK + checksum, replacing any prior asset of the same name.
-          for A in "$ASSET_APK" "$ASSET_SUM"; do
-            OLD=$(curl -s -H "Authorization: token $TOKEN" "$API/releases/$ID/assets" \
-              | jq -r --arg n "$A" '.[] | select(.name==$n) | .id')
-            [ -n "$OLD" ] && curl -s -X DELETE -H "Authorization: token $TOKEN" "$API/releases/$ID/assets/$OLD" >/dev/null || true
-            curl -s -X POST -H "Authorization: token $TOKEN" \
-              -F "attachment=@/tmp/$A" \
-              "$API/releases/$ID/assets?name=$A" -o /dev/null -w "asset $A HTTP %{http_code}\n"
-          done
-          echo "Published $TAG to Codeberg."
-
-      # Play takes an App Bundle, not the APK, so it is a second artifact from
-      # the same source and the same signing config — not a repackage of the
-      # APK. The release key signs it, but Play only ever treats that key as the
-      # *upload* key: Play App Signing re-signs with Google's own key before
-      # delivery. A Play install and an F-Droid install therefore carry
-      # different signatures and cannot update each other. That divergence is a
-      # deliberate, documented choice (docs/RELEASING.md), not an accident.
-      #
-      # Built LAST and `continue-on-error`, both deliberately: everything above
-      # has already shipped by this point, and nothing Play-related may put that
-      # at risk. Sitting mid-job without continue-on-error, this block took the
-      # whole 2.17.0 release down with it — no F-Droid publish, no tag, no
-      # Codeberg mirror — over an artifact upload. A failure here now costs the
-      # Play upload and nothing else.
-      #
-      # Nothing here touches the F-Droid path: the AAB is never copied into the
-      # repo, never attached to a release, and its build cannot change the APK
-      # published above.
-      #
-      # AGP embeds the R8 mapping in the bundle's BUNDLE-METADATA, so Play gets
-      # deobfuscated stacktraces without a separate mapping upload.
-      - name: Build release AAB
-        if: env.IS_RELEASE == 'true'
-        continue-on-error: true
-        run: ./gradlew bundleRelease
-
-      # NOT actions/upload-artifact@v4: it runs @actions/artifact v2, which
-      # refuses to start whenever GITHUB_SERVER_URL is not github.com — it reads
-      # any other forge as an unsupported GHES instance and fails before it ever
-      # talks to the server (go-gitea/gitea#36024). Gitea 1.25 serves the v4
-      # artifact API fine; only the client-side check is wrong. This fork is that
-      # client with the check removed. Pinned to a commit, not the v4 branch: a
-      # third-party action in the signing pipeline must not change under us.
-      - name: Hand the AAB to the Play job
-        if: env.IS_RELEASE == 'true'
-        continue-on-error: true
-        uses: https://github.com/ChristopherHX/gitea-upload-artifact@81f940d004763f986ba3582c007fd842dd5cb0d7 # v4
-        with:
-          name: release-aab-${{ needs.detect.outputs.version }}
-          path: app/build/outputs/bundle/release/app-release.aab
-          if-no-files-found: error
-          retention-days: 14
-
-  # Google Play channel.
-  #
-  # A separate job, on purpose, running only AFTER the F-Droid publish and both
-  # forge releases have completed. Play is the one channel that can reject a
-  # perfectly good build for reasons outside the pipeline (listing rules, policy
-  # review, API outage, a track that needs manual promotion). Isolating it means
-  # such a rejection surfaces as one red job next to a release that already
-  # shipped everywhere else, instead of failing the workflow that publishes it.
-  #
-  # Not a `container:` job even though a fastlane image exists: act_runner does
-  # not provide node inside custom job containers, so JavaScript actions
-  # (checkout, download-artifact) can't run there. The Renovate job gets away
-  # with a container because its only step is a shell command. Ruby is installed
-  # the same way sshpass, jq and fdroidserver are in the job above.
-  play:
-    needs: [detect, release]
-    # workflow_dispatch is the F-Droid re-sign recovery path — it must never
-    # touch Play, so gate on a real release only.
-    if: needs.detect.outputs.is_release == 'true'
-    runs-on: docker
-    env:
-      VERSION: ${{ needs.detect.outputs.version }}
-      VERSION_CODE: ${{ needs.detect.outputs.version_code }}
-      # Where the bundle lands. `internal` by default so a release reaches
-      # testers rather than the public, and promotion to production stays a
-      # deliberate human action in the Play Console — the same posture as
-      # holding UI releases for on-device review. Override with the PLAY_TRACK
-      # repo variable once the flow is trusted.
-      PLAY_TRACK: ${{ vars.PLAY_TRACK || 'internal' }}
-      PLAY_RELEASE_STATUS: ${{ vars.PLAY_RELEASE_STATUS || 'completed' }}
-      # Set PLAY_DRY_RUN=true to validate the edit against the API and discard
-      # it instead of committing — used to rehearse the first upload.
-      PLAY_DRY_RUN: ${{ vars.PLAY_DRY_RUN || 'false' }}
-      BUNDLE_PATH: vendor/bundle
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v4
-
-      # Skip cleanly (not fatally) when Play isn't configured yet, so the rest
-      # of the release pipeline keeps working during setup — same contract as
-      # the Codeberg mirror step.
-      - name: Write the Play service-account key
-        id: key
-        env:
-          PLAY_SERVICE_ACCOUNT_JSON: ${{ secrets.PLAY_SERVICE_ACCOUNT_JSON }}
-        run: |
-          set -euo pipefail
-          if [ -z "${PLAY_SERVICE_ACCOUNT_JSON:-}" ]; then
-            echo "PLAY_SERVICE_ACCOUNT_JSON not set — skipping the Play upload."
-            echo "configured=false" >> "$GITHUB_OUTPUT"
-            exit 0
-          fi
-          printf '%s' "$PLAY_SERVICE_ACCOUNT_JSON" > play-service-account.json
-          # Fail here, with a clear message, rather than inside fastlane: a
-          # mangled multi-line secret is the likeliest setup mistake.
-          python3 -c "import json,sys; d=json.load(open('play-service-account.json')); sys.exit(0 if d.get('type')=='service_account' else 1)" \
-            || { echo "PLAY_SERVICE_ACCOUNT_JSON is not a valid service-account JSON." >&2; exit 1; }
-          echo "configured=true" >> "$GITHUB_OUTPUT"
-
-      # Same GHES-detection problem as the upload side, same fix — see the
-      # handoff step in the release job.
-      - name: Download the AAB
-        if: steps.key.outputs.configured == 'true'
-        uses: https://github.com/ChristopherHX/gitea-download-artifact@75635f32b4c1c41c4b3d64e8f85210112ed4c9c7 # v4
-        with:
-          name: release-aab-${{ needs.detect.outputs.version }}
-          path: dist
-
-      - name: Install Ruby
-        if: steps.key.outputs.configured == 'true'
-        run: |
-          set -euo pipefail
-          SUDO=""
-          if command -v sudo >/dev/null 2>&1; then SUDO="sudo"; fi
-          $SUDO apt-get update
-          # ruby-dev + build-essential: several of fastlane's dependencies build
-          # native extensions.
-          $SUDO apt-get install -y ruby-full ruby-dev build-essential
-          ruby -v
-
-      # Only the first release pays the full gem build; afterwards this restores.
-      - name: Cache bundled gems
-        if: steps.key.outputs.configured == 'true'
-        uses: actions/cache@v4
-        with:
-          path: vendor/bundle
-          key: ${{ runner.os }}-gems-${{ hashFiles('Gemfile') }}
-          restore-keys: |
-            ${{ runner.os }}-gems-
-
-      - name: Install fastlane
-        if: steps.key.outputs.configured == 'true'
-        run: |
-          set -euo pipefail
-          gem install bundler --no-document
-          bundle config set --local path vendor/bundle
-          bundle install --jobs 4
-          bundle exec fastlane --version
-
-      - name: Upload to Play
-        if: steps.key.outputs.configured == 'true'
-        env:
-          SUPPLY_JSON_KEY: play-service-account.json
-          # supply is chatty on a TTY-less runner otherwise.
-          FASTLANE_SKIP_UPDATE_CHECK: '1'
-          FASTLANE_HIDE_CHANGELOG: '1'
-        run: |
-          set -euo pipefail
-          AAB="$GITHUB_WORKSPACE/dist/app-release.aab"
-          # Absolute, because a lane body runs from fastlane/, not the
-          # workspace root — a relative path resolves against the wrong
-          # directory there and 2.17.1 died on exactly that.
-          test -f "$AAB" || { echo "No AAB at $AAB — the artifact handoff failed." >&2; ls -la dist || true; exit 1; }
-          bundle exec fastlane deploy \
-            aab:"$AAB" \
-            track:"$PLAY_TRACK" \
-            release_status:"$PLAY_RELEASE_STATUS" \
-            dry_run:"$PLAY_DRY_RUN"
-          echo "Uploaded $VERSION (code $VERSION_CODE) to the '$PLAY_TRACK' track."
-
-      # The workspace is reused between runs on a self-hosted runner, so the
-      # credential must not outlive the job.
-      - name: Shred the service-account key
-        if: always()
-        run: shred -u play-service-account.json 2>/dev/null || rm -f play-service-account.json

.gitea/workflows/renovate.yml

@@ -29,30 +29,14 @@ jobs:
       - name: Run Renovate
         run: renovate
         env:
-          # Renovate targets Codeberg (canonical) while still RUNNING on the
-          # Gitea runner. Moving the job to Codeberg would put a repo-write
-          # token on the contributor-facing runner, which is exactly what the
-          # .forgejo/ vs .gitea/ split exists to prevent — so the token stays
-          # where the other secrets live and only the API calls cross over.
-          #
-          # Platform is `forgejo`, not `gitea`: Codeberg runs Forgejo, and the
-          # pinned image ships a distinct forgejo platform module.
-          RENOVATE_PLATFORM: forgejo
-          RENOVATE_ENDPOINT: https://codeberg.org/api/v1
-          # Codeberg bot-account token (Gitea secret). Needs repo read/write +
-          # PR scope on jlmakiola/calendula.
+          # Self-hosted Gitea, not github.com.
+          RENOVATE_PLATFORM: gitea
+          RENOVATE_ENDPOINT: https://gitea.jeanlucmakiola.de/api/v1
+          # Bot-account token (Gitea secret). Needs repo read/write + PR scope.
           RENOVATE_TOKEN: ${{ secrets.RENOVATE_TOKEN }}
           # Scope to this repo only — no org-wide autodiscovery.
           RENOVATE_AUTODISCOVER: 'false'
-          RENOVATE_REPOSITORIES: '["jlmakiola/calendula"]'
-          # Commits/PRs authored as the bot, not a real maintainer. This address
-          # must be a verified email on the Codeberg bot account, otherwise the
-          # commits show up unattributed there.
+          RENOVATE_REPOSITORIES: '["makiolaj/calendula"]'
+          # Commits/PRs authored as the bot, not a real maintainer.
           RENOVATE_GIT_AUTHOR: 'Renovate Bot <renovate@jeanlucmakiola.de>'
-          # Read-only github.com PAT (no scopes needed). Unaffected by the forge
-          # move — nearly every dependency is *released* on GitHub, and without
-          # this,
-          # changelog/release-note lookups hit the 60/h anonymous rate limit
-          # and PRs arrive with an empty "Release Notes" section.
-          RENOVATE_GITHUB_COM_TOKEN: ${{ secrets.GITHUB_COM_TOKEN }}
           LOG_LEVEL: info

.gitea/workflows/translations.yaml

@@ -3,15 +3,17 @@ name: Translations
 # Fast, SDK-free parity check for translation resources, so Weblate PRs (which
 # only touch values-*/strings.xml) get quick feedback without the full Android
 # build. The deeper checks still run in CI via lintDebug (ExtraTranslation).
-#
-# Runs on every PR (no path filter) so the required "Translations / check"
-# status is always reported — like the `ci` job. A path-filtered workflow is
-# skipped on unrelated PRs and never posts its status, which leaves that
-# required check pending forever and blocks the merge of any code-only PR into a
-# release/* branch. The check itself is cheap and simply passes when the
-# committed translations are consistent, so always running it costs nothing.
 on:
-  pull_request:
+  push:
+    branches:
+      - '**'
+    tags-ignore:
+      - '**'
+    paths:
+      - 'app/src/main/res/values*/strings.xml'
+      - 'app/src/main/res/xml/locales_config.xml'
+      - 'scripts/check_translations.py'
+      - '.gitea/workflows/translations.yaml'
 
 concurrency:
   group: translations-${{ github.ref }}

.gitignore

@@ -50,27 +50,8 @@ google-services.json
 .DS_Store
 Thumbs.db
 
-# Editor swap/backup files
-*.swp
-*.swo
-*~
-
 # F-Droid local artifacts (the pipeline generates them in CI)
 /fdroid/
 
 # KSP
 .ksp/
-
-# Google Play Developer API service-account key. Reconstructed in CI from the
-# PLAY_SERVICE_ACCOUNT_JSON secret and shredded afterwards — never committed.
-/play-service-account.json
-
-# fastlane (Play uploader only — see fastlane/Fastfile)
-/fastlane/report.xml
-/fastlane/README.md
-/vendor/bundle/
-/.bundle/
-Gemfile.lock
-
-# Claude Code
-/CLAUDE.md

.gitmodules

@@ -1,3 +0,0 @@
-[submodule "floret-kit"]
-	path = floret-kit
-	url = https://codeberg.org/jlmakiola/floret-kit.git

.planning/PROJECT.md

@@ -17,10 +17,9 @@ re-inventing the calendar sync stack — leave that to DAVx5 and the system.
 ## Current Milestone
 
 Milestones 1 (read, v1.0) and 2 (write support, v1.1–v2.0.0 incl. reminder
-delivery) are **complete** — v2.0.0 shipped 2026-06-11. Everything since is
-tracked as issues and milestones on Codeberg:
-<https://codeberg.org/jlmakiola/calendula/milestones>. A milestone maps to its
-`release/vX.Y.Z` branch.
+delivery) are **complete** — v2.0.0 shipped 2026-06-11. Next is v3.0
+(power-user features) plus an undecided "Locations & People" idea backlog;
+see `ROADMAP.md`.
 
 ## Stack
 
@@ -28,26 +27,10 @@ Kotlin 2.3.21 (paired with KSP 2.3.9 — Kotlin 2.4.0 has no KSP release
 yet, do not upgrade until one ships). Jetpack Compose + Material 3
 Expressive 1.5.0-alpha21 (alpha is intentional — Expressive APIs only
 live in the 1.5 alpha line). Hilt 2.59.2, DataStore. Gradle Kotlin DSL
-with Version Catalog. AGP 9.2.1, Gradle 9.5.1. JVM target 17 (exactly — AGP
-requires it).
+with Version Catalog. AGP 9.1.1, Gradle 9.5.1. JVM target 17.
 
-The shared Material 3 Expressive kit, **floret-kit**, is a git submodule wired
-in as a Gradle composite build, so it compiles from source rather than resolving
-as a dependency.
-
-## Constraints
-
-- **Platform:** Android-only, Android 10+ (minSdk 29), targetSdk 36. No iOS.
-- **Offline-first:** all data lives in `CalendarContract` — no app database, no
-  sync stack. No `INTERNET` permission; any feature needing one is an explicit
-  product decision first.
-- **Privacy:** zero telemetry, zero analytics.
-- **i18n:** German + English from day one; further languages come from community
-  translators via the self-hosted Weblate, which owns every `values-*` file.
-- **Tests + CI from day one**, JVM-first.
-- **Reproducible release builds**, so the official F-Droid repo can verify the
-  published binary against a from-source rebuild.
-- **Licence:** MIT.
+Android-only (minSdk 29, targetSdk 36). No iOS. No `INTERNET` permission —
+any feature that would need one is an explicit product decision first.
 
 ## Naming
 
@@ -57,9 +40,5 @@ shows a stylized "1" on a slate squircle.
 
 ## Source
 
-**Codeberg (`jlmakiola/calendula`) is canonical** — git, issues, PRs, tags and
-releases, plus contributor CI. The self-hosted Gitea instance is build
-infrastructure only: it holds the signing key, runs the release pipeline, and
-publishes the self-hosted F-Droid repo on Hetzner. Codeberg push-mirrors `main`
-and tags to Gitea, where a bumped `versionName` triggers the release. Also
-published to the official F-Droid repo. See `docs/RELEASING.md`.
+Hosted on self-hosted Gitea, released through self-hosted F-Droid repo on
+Hetzner. Same infrastructure as `HouseHoldKeaper`.

.planning/REQUIREMENTS.md

@@ -0,0 +1,53 @@
+# Calendula — Requirements
+
+See full design spec: `docs/superpowers/specs/2026-06-08-calendar-app-design.md`
+
+## V1 Scope (Variant "B") — shipped in full (v1.0.0, 2026-06-11)
+
+- [x] Foundation & CI infrastructure — v0.1.0 (2026-06-08)
+- [x] Data Layer over `CalendarContract`
+- [x] Permission flow (`READ_CALENDAR`)
+- [x] Month view (S1)
+- [x] Week view (S2)
+- [x] Day view (S3)
+- [x] Event Detail Sheet (S4) — became a full screen, plus full event read (v0.6)
+- [x] Multi-Calendar Filter (M3)
+- [x] Today button (M2) — shipped v0.5; Jump-to-Date **cut from scope**
+- [x] View-Switcher (M1)
+- [x] Settings screen (M4)
+- [x] Empty / no-permission / no-calendars states
+- [x] German + English localization
+- [x] Loading/Failure/Success states per screen (architectural pattern)
+
+## V2 Scope — write support, shipped in full (v2.0.0, 2026-06-11)
+
+- [x] Write foundation: `WRITE_CALENDAR`, read-only-calendar detection, delete (v1.1)
+- [x] Create event: form, FAB, last-used calendar (v1.2; polish v1.2.1)
+- [x] Edit event: shared form, scoped recurring writes, recurrence picker (v1.3)
+- [x] Reminder notifications (v1.4) — **reversal of the original
+  "system handles reminders" assumption:** Calendula targets
+  sole-calendar-app users, so it posts reminder notifications itself
+  (Etar model), incl. `POST_NOTIFICATIONS` onboarding
+- [x] Conflict dialog on save + store polish (v2.0)
+- Quick-add — **cut from scope** (the prefilled form covers it)
+- Calendar switching while editing — moved to v3 backlog
+
+### Out of Scope (V3+)
+
+- Home-screen widget
+- Full-text search
+- Tablet/foldable-specific layouts
+- Locations & People ideas (contact picker, OSM autocomplete) — see
+  `ROADMAP.md` idea backlog, undecided
+- iOS support (Android-only by design)
+
+## Constraints
+
+- **Tech stack:** Kotlin + Jetpack Compose + Material 3 Expressive, Hilt, DataStore
+- **Tech stack pin:** Hilt 2.59.2 + KSP 2.3.9; Kotlin 2.3.21 (KSP for Kotlin 2.4.0 not released yet). Material 3 pinned to `1.5.0-alpha21` (Expressive APIs only exist in alpha). Re-evaluate when KSP/Material3 stable land.
+- **Platform:** Android 10+ (API 29 minimum), Android 16 (API 36) target
+- **Offline-first:** all data lives in `CalendarContract`; no app-side network
+- **Privacy:** zero telemetry, no analytics
+- **i18n:** German + English from day one
+- **Tests + CI from day one**
+- **License:** MIT

.planning/ROADMAP.md

@@ -0,0 +1,467 @@
+# Calendula — Roadmap
+
+## v0.x — Pre-Release
+
+| Version | Milestone | Status |
+|---|---|---|
+| v0.1 | Foundation & CI | complete |
+| v0.2 | Data Layer & Permission Flow | complete |
+| v0.3 | Month + Week + Day views, view switcher | complete |
+| v0.4 | Event Detail (S4) + humanized recurrence | complete |
+| v0.5 | Calendar filter (M3) + Settings (M4) | complete |
+| v0.6 | Full event read — surface every readable field | complete |
+| v1.0 | First public release — polish pass, F-Droid | complete |
+
+Delivery ran ahead of the original table: Day view (S3) shipped in v0.3 and
+Event Detail (S4) in v0.4, so the Filter/Settings milestone became v0.5.
+
+Jump-to-date (the date-picker half of M2) was **cut from scope** and will not
+ship. The "Today" half of M2 already shipped in v0.5 (drawer entry).
+
+## v0.6 — Full event read
+
+Round out the read-only model so a detail view shows everything the system
+actually stores, before write support starts. Scope = `CalendarContract`
+columns we don't yet read/display:
+
+- **Reminders** (`VALARM`) — read `CalendarContract.Reminders`, list lead times
+- **Status** — Confirmed / Tentative / Cancelled (cancelled shown struck-through)
+- **Availability** (`TRANSP`) — Free / Busy chip
+- **Attendee extras** — role (required / optional / organizer) + the user's own
+  `SELF_ATTENDEE_STATUS`
+- **Timezone** (`EVENT_TIMEZONE`) — shown only when it differs from the device zone
+- **URL** — ~~tappable link card~~ **cut**: `CalendarContract` exposes no
+  `Events.URL` column (only `CUSTOM_APP_URI`, an originating-app deep-link).
+  URLs are instead surfaced by linkifying the description text
+- **Access level / class** (private / confidential) — small chip (optional, trivial)
+
+All of the above shipped in v0.6.0 (2026-06-11).
+
+Deliberately out of v0.6:
+- Recurrence exception / modified-occurrence badges — `Instances` already
+  resolves correct per-occurrence times for display; this only matters for
+  editing, so it folds into v2
+- `CATEGORIES`, `ATTACH` — not reliably exposed by `CalendarContract`
+  (provider limitation, not our choice)
+
+## v1.0 — First Public Release — shipped 2026-06-11
+
+All V1 features shipped, polished, on F-Droid. Read-only calendar. Cut directly
+after v0.6 (full event read) plus the onboarding-screen polish pass.
+
+### Polish backlog (pre-1.0)
+- ~~Redesign the initial grant-access (permission) screen~~ — **done**
+  (Material 3 Expressive onboarding, shipped in v0.6.0 / v1.0.0)
+
+## v2.0 — Write Support (complete, shipped 2026-06-11)
+
+Delivered in four releasable slices (plan:
+`docs/superpowers/plans/2026-06-11-03-write-support.md`). The V1 spec is a
+guide here, not a contract — scope per slice is decided as we go.
+
+| Version | Milestone | Status |
+|---|---|---|
+| v1.1 | Write foundation — `WRITE_CALENDAR`, read-only-calendar detection, delete (series + single occurrence) | complete (shipped 2026-06-11) |
+| v1.2 | Create event — form, FAB, last-used-calendar preselect | complete (shipped 2026-06-11) |
+| v1.2.1 | Form polish after on-device review — card design system, optional fields + settings defaults, OptionCard dialogs, expressive motion | complete (shipped 2026-06-11) |
+| v1.3 | Edit event — shared form, scoped recurring writes (this / following / all), recurrence picker | complete (shipped 2026-06-11) |
+| v1.4 | Reminder notifications — see below | complete (shipped 2026-06-11) |
+| v2.0 | Conflict dialog, polish pass (store copy refresh, F-Droid screenshots), release | complete (shipped 2026-06-11) |
+
+v2.0 scope was re-cut on 2026-06-11, after v1.4:
+- **Occurrence edit** already shipped early, in v1.3.
+- **Quick-add** is **cut from scope**: the full form already opens prefilled
+  (visible day, last-used calendar, optional fields hidden), so the sheet
+  would only save one screen transition while adding a second create-surface
+  to maintain. Revisit only if real-world feedback says creation feels heavy.
+- **Calendar switching while editing** moves to the v3 backlog (sync-adapter
+  minefield: `CALENDAR_ID` is sync-adapter-owned, AOSP locks the field; an
+  honest implementation is copy+delete like Google Calendar, with sync-identity
+  and attendee side effects).
+- **Conflict dialog** stays (plan 03, decision 5): on save, compare against
+  the row as it was when the form loaded; on external change, ask
+  overwrite / discard. Closes the silent-clobber gap on synced calendars.
+
+## v1.4 — Reminder Notifications
+
+**Essential**, not nice-to-have: Calendula targets users for whom it is their
+*only* calendar app, so reminder delivery can't be delegated to Google/OEM
+Calendar. The calendar provider schedules reminders and broadcasts
+`android.intent.action.EVENT_REMINDER`, but it does **not** post the visible
+notification — a calendar app must. We become that app (the Etar model).
+
+Scope:
+- Manifest-registered `BroadcastReceiver` for `EVENT_REMINDER`
+  (data scheme `content://com.android.calendar`) — wakes us at reminder time,
+  no foreground service.
+- Read `CalendarContract.CalendarAlerts` / `Reminders`, filter to
+  `METHOD_ALERT` / `METHOD_DEFAULT` (skip `METHOD_EMAIL`); post on a dedicated
+  notification channel; tap opens event detail.
+- `POST_NOTIFICATIONS` runtime permission (API 33+) — requested in onboarding.
+- Onboarding step: (a) request `POST_NOTIFICATIONS`, (b) in-app reminders
+  toggle, **default ON**, with copy warning that a second calendar app with
+  notifications on will cause duplicate reminders. Mirrored into Settings
+  (reversible).
+
+Deliberately deferred (add only if needed):
+- Snooze / dismiss notification actions (Etar has them)
+- Battery-optimization exemption prompt for delivery reliability
+
+## v2.1 — Month event grid + drawer view tabs (shipped 2026-06-15)
+
+- Month grid shows real events as continuous multi-day bars (not just dots)
+- View section in the navigation drawer to switch Month / Week / Day
+- Fix: text cursor no longer jumps in event text fields
+
+## v2.2 — Tap-to-create + local calendar management (shipped 2026-06-16)
+
+- Tap an empty slot in day/week → create form prefilled with that day + the
+  tapped hour (snapped to the hour, 1 h long)
+- Local (device-only) calendar management in a full-screen editor from
+  Settings → Calendars: create / rename / recolor / delete, with name,
+  pastel-previewed colour, and description (stored in `CAL_SYNC1`)
+- Synced calendars listed read-only, grouped by account, each with a
+  per-account "manage in source app" deep-link (resolved from the account's
+  authenticator — DAVx5/ICSx5/…) + an add-account shortcut
+- Shared `InlineTextField` extracted to `ui.common` (event form + calendar
+  editor share one input style)
+
+## v2.3 — Material 3 grouped-list redesign (shipped 2026-06-16)
+
+A structural + visual pass adopting one shared blueprint (modelled on the ReFra
+gallery app) across Settings, the calendar manager and the navigation drawer.
+
+- Shared `ui/common/GroupedList.kt`: `CollapsingScaffold` (a `LargeTopAppBar`
+  whose title collapses on scroll) + `GroupedRow` (Position-based corner
+  grouping, press-animated corners, `selected` + `minHeight` knobs).
+- Settings: category hub with About card on top and sliding sub-pages
+  (Appearance / New event form / Notifications); theme/week-start/language
+  pickers moved from `DropdownMenu` to OptionCard dialogs; token-based icon
+  chips; `ic_gitea.xml` for the About "Source" button.
+- Calendar manager + drawer restyled to match; shared `CalendarColorChip`;
+  drawer scrolls as one with the active view highlighted.
+- Cards use `surfaceContainerHigh` for readable contrast.
+- Donate button on the About card deferred (target TBD).
+
+---
+
+# Backlog (theme-based, post-v2.1)
+
+The old v3.0 / "daily-driver polish" / "Locations & People" lists are
+consolidated here by theme. Within a group, **(in progress)** /
+**(next)** mark what is being or about to be worked; everything else is an
+approved-but-unscheduled idea unless tagged **(idea)** /
+**(go/no-go)** / **(rejected)**. Order across groups is not a commitment.
+
+## Near-term sequence (ranked, 2026-06-16)
+
+The theme groups below are the full menu; this is the committed *order* for
+the next stretch. Ranking favours finishing the current create/edit + calendar
+arc before opening new fronts, then cheap-relative-to-value items and ones that
+unblock a later item. Order is a plan, not a contract — revisit after each lands.
+
+**Tier 1 — finish the current arc (create/edit + calendars)**
+1. Tap-to-create in day/week *(shipped v2.2.0)* — prefilled create from an empty slot
+2. Local calendar management + "manage in source app" deep-links *(shipped v2.2.0)*
+3. ~~Settings redesign & restructure~~ *(shipped v2.3.0 — grew into the full
+   grouped-list blueprint across Settings + calendars + drawer; see "v2.3"
+   above)*
+4. ~~Per-event color~~ *(shipped v2.4.0)* — palette calendars write
+   `EVENT_COLOR_KEY` (sync-safe); local/opted-in calendars write a raw
+   `EVENT_COLOR`; off-by-default setting for no-palette synced calendars
+Tier 1's create/edit + calendars arc is effectively closed. **Duplicate event**
+was deprioritised (2026-06-17) as low-importance and dropped to the bottom of
+the sequence; the next item is now **Jump-to-date** (formerly Tier 2).
+
+(Tier 2+ numbering below shifts accordingly; ranking unchanged.)
+
+### Settings redesign & restructure *(shipped v2.3.0)*
+
+The original scope below is kept as a record; the implementation expanded from a
+sub-screen restructure into the shared grouped-list blueprint (see "v2.3" above).
+
+The settings screen has grown into a flat vertical scroll of divider-separated
+sections (Appearance, Event form, Notifications, Calendars, Language, About) and
+will keep accreting rows (per-event-color defaults, default reminder, more
+calendar entries are all queued). It needs structure before it gets unwieldy.
+
+**Decided (2026-06-16): sub-screens**, not flat-but-carded. The top level
+becomes a category list; each category opens its own destination. More
+M3-idiomatic for a settings surface that will keep growing, and it mirrors the
+existing Calendars row, which already navigates out to its own screen.
+
+Structure — top-level settings list → category destinations:
+- **Appearance** → theme, dynamic colour, week start
+- **Event form** → the 6 default-field toggles + the hint text
+- **Notifications** → reminders toggle (POST_NOTIFICATIONS flow stays)
+- **Calendars** → already its own screen (`CalendarsScreen`); just becomes a
+  peer category row, no change to that screen
+- **Language** → single control; keep as a top-level row that opens an
+  OptionCard directly (a whole sub-screen for one choice is overkill)
+- **About** → kept inline on the top-level list as a card (read-only info,
+  not worth a navigation hop). Card layout, top → bottom:
+  - **Identity** — app logo + name "Calendula", with "by Jean-Luc Makiola"
+    as a subtitle beneath the name
+  - **Action buttons** (small, button-styled, sit in a row):
+    - **Source** — Gitea logo, opens the repo (`about_source_url`)
+    - **License** — opens the LICENSE file on Gitea
+    - **Donate** *(tentative)* — sits next to Source; target TBD (decide
+      before building: Liberapay / Ko-fi / Gitea sponsor / etc.)
+  - **Version** — small version number at the bottom of the card
+
+Scope:
+- **Navigation** — add the settings sub-screen destinations alongside the
+  existing settings/calendars routes in `CalendarHost`; back pops to the
+  settings list (mind the existing `BackHandler` that guards against falling
+  through to the activity).
+- **Fix the dialog-pattern violation** — theme, week-start and language use
+  `DropdownMenu`; the project default is the full-width tonal OptionCard modal
+  (radio/dropdown/text-list dialogs are banned, see
+  `option-card-modal-style-default`). Migrate these selectors to OptionCard.
+- **Visual pass** — top-level category rows with leading icons; consistent
+  spacing and row affordances aligned with the event-form card design system.
+
+Out of scope (no new settings *features* here) — this is a structure + style
+pass on the existing controls; new toggles ride in with their own features.
+
+**Tier 2 — navigation & daily-driver completeness**
+5. ~~Jump-to-date — drawer date picker (un-cut from V1); cheap, fills the nav gap~~ *(done, v2.5.0)*
+6. ~~Agenda view — the missing 4th view; serves daily-driver users *and* becomes the data source for the widget~~ *(done, v2.5.0)*
+
+**Tier 3 — platform reach (depends on Tier 2)**
+7. ~~Home-screen widget — built on the agenda data source from #6~~ *(done, v2.5.0 — agenda + month widgets)*
+8. App shortcuts: ~~launcher long-press → New event~~ *(done, v2.5.0)*; optional quick-settings tile still open
+
+**Tier 4 — reliability, data-safety & interop** *(re-ranked 2026-06-17)*
+9. **Reminders — defaults + delivery reliability** *(shipped v2.6.0)* — global
+   default reminder **+ per-calendar override**, bundled with battery-exemption
+   hardening. Full sketch in "Reminders — defaults & delivery reliability" below.
+10. **The `.ics` engine — export + import** *(in progress → v2.7)* — one
+    hand-rolled serializer/parser (zero deps, stays on `kotlinx-datetime`),
+    four surfaces: single-event share + whole-calendar backup (export),
+    open-`.ics`→form + whole-calendar restore (import). Closes the
+    device-local-calendar data-loss gap (#10/#11 merged here). Built as **two
+    sequential branches in one release**: `feat/ics-export` (write side +
+    UID-on-create precursor) then `feat/ics-import` (parser, restore, dedup).
+    Import is liberal-in/strict-out: skip-and-report foreign `VTIMEZONE` /
+    `RECURRENCE-ID` it can't model. Timezone rule: all-day `VALUE=DATE`,
+    non-recurring timed UTC `Z`, recurring timed `TZID`-labelled from the stored
+    `EVENT_TIMEZONE` (no `VTIMEZONE` blocks; resolved against the OS tz DB on
+    import). Plan: `docs/superpowers/plans/2026-06-18-05-ics-export.md`.
+11. **Snooze / dismiss notification actions** *(next, after v2.7)* — follows the
+    `.ics` work; inherits v2.6's deferred exact-alarm/WorkManager decision (snooze
+    must re-fire an alarm).
+12. Drag & drop rescheduling in day/week — big-ticket, own slice (recurring drops reuse the scope dialog)
+
+**Gated — explicit go/no-go before any work (mostly INTERNET-permission calls)**
+- Remote calendar create/edit (re-implements DAVx5; INTERNET + credential storage)
+- Locations & People — contact address picker (no-permission, one-shot) is the safe entry; OSM autocomplete needs INTERNET
+- Move event to another calendar — sync-adapter minefield (copy+delete model)
+
+**Bottom — deprioritised, not important**
+- Duplicate event (detail action → prefilled create form) — moved here
+  2026-06-17; cheap but low value, pick up only if asked
+
+**Unranked / fill-in** — pinch-to-zoom time scale, tablet/foldable layouts,
+full-text search, ICS file import. Pulled in opportunistically, not sequenced.
+
+Debatable calls worth a second look: whether **local-calendar backup (#10)**
+should lead Tier 4 outright (it's a silent data-loss risk, not a feature);
+whether drag-drop (#12) jumps ahead given its daily-driver impact.
+
+## Navigation & views
+
+- ~~Tap an empty slot in day/week → create form prefilled with that
+  date+time, snapped to the hour~~ **shipped v2.2.0** (long-press variant
+  not added — single tap covers it)
+- Agenda view (fourth view: upcoming events grouped by day; also the
+  natural data source for a future widget)
+- Jump to date — drawer date picker (un-cut from V1)
+- Current-time "now" line in day/week — standard in every calendar, cheap,
+  currently absent. Daily-driver polish.
+- Week numbers in the **month** grid — week view already shows the badge
+  (`WeekNumberBadge`, `WeekScreen.kt`); extend to month for ISO/European users.
+- Pinch-to-zoom time scale in day/week
+- Tablet / foldable layouts *(was v3.0)*
+- Full-text search *(was v3.0)* — promote out of "fill-in": for a daily driver
+  with real event history, finding an event is core completeness, not optional.
+
+## Event editing & creation
+
+- Drag & drop rescheduling in day/week (recurring drops reuse the scope
+  dialog) — big-ticket, own slice
+- Duplicate event (detail action → prefilled create form)
+- **Per-event color** (`Events.EVENT_COLOR`, OptionCard picker in the form)
+  *(next)* — chosen to follow the in-progress tap-to-create + calendar
+  management work: reuses the color-picker component and palette plumbing
+  being built for local calendar management, and finishes the create/edit
+  theme. `EVENT_COLOR` / `EVENT_COLOR_KEY` from the calendar's color list
+  (`Colors` table, `TYPE_EVENT`); falls back to the calendar color when unset.
+
+## Calendars & accounts
+
+- ~~Create / manage local (device-only) calendars~~ **shipped v2.2.0** —
+  name + color + description; rename / recolor / delete the calendars the app
+  owns. Inserted under `ACCOUNT_TYPE_LOCAL` as a sync adapter; description in
+  `CAL_SYNC1`. Full-screen "Calendars" editor reached from Settings.
+- ~~Per-calendar "manage in source app" deep-link~~ **shipped v2.2.0** — for
+  synced calendars, open the app the calendar actually came from based on
+  its `ACCOUNT_TYPE` (DAVx5 `bitfire.at.davdroid`, Google `com.google`,
+  …); fall back to system account/sync settings. Plus an "add account"
+  entry into system Accounts. Honest boundary for remote calendars.
+- **Remote calendar create/edit** *(go/no-go)* — creating a CalDAV
+  collection (`MKCALENDAR`) or a Google calendar means an in-app sync
+  client: **INTERNET permission, credential storage, the full server
+  round-trip** — i.e. re-implementing DAVx5. DAVx5 exposes no public
+  intent to delegate the create to it. Cosmetic local edits (color/name)
+  to an existing synced row are possible but don't propagate to the server
+  and may be overwritten on next sync — not promised. Same explicit
+  go/no-go gate as the OSM/INTERNET item below.
+- Move event to another calendar (copy+delete model with a consequences
+  warning — deferred from v2.0; `CALENDAR_ID` is sync-adapter-owned) *(was v3.0)*
+- **Local-calendar backup / export** *(Tier 4 #10)* — device-only
+  (`ACCOUNT_TYPE_LOCAL`) calendars are first-class in Calendula but have **no
+  sync and therefore no backup**: a lost/wiped phone destroys them permanently.
+  Whole-calendar `.ics` (VCALENDAR) export to a user-chosen file (SAF), plus
+  restore-on-import that recreates events into a chosen local calendar. Reuses
+  the .ics serializer from the single-event share work; the restore path reuses
+  the import parser. A data-integrity obligation, not a feature.
+
+## Reminders — defaults & delivery reliability *(implemented 2026-06-17, `feat/default-reminders` — pending on-device review)*
+
+Two themes bundled because both are "make reminders trustworthy" — the core of
+the "Calendula is your only calendar app" promise.
+
+**Built in this slice (A + the safe half of B):** global timed default reminder
++ a **separate all-day default** (day-scale lead times) + per-calendar override
+(timed events), applied on create with manual-edit / calendar-switch / all-day-
+toggle handling; three pickers + per-calendar override list in Settings →
+Notifications; battery-optimisation exemption row (status + system deep-link, no
+extra permission). `resolveDefaultReminder` + prefs round-trips unit-tested.
+Resolution model: all-day events use the all-day global default outright;
+per-calendar overrides govern timed events only. Reviewed (8-angle), fixes
+applied: form-reset state race, label-fn consolidation with the detail screen,
+inline wrapper + single combined flow read.
+
+**Deliberately deferred (documented decisions, not oversights):**
+- *Absolute time-of-day for all-day reminders* — the all-day default is still
+  minutes-before-midnight (day-scale presets), not "9am the day before" (open
+  decision #2's richer half). Per-calendar all-day overrides also deferred.
+- *Self-scheduled alarms* — kept the existing provider-broadcast architecture
+  (open decision #1). The battery exemption is the reliability lever; no
+  `AlarmManager`/`USE_EXACT_ALARM` subsystem was added.
+- *Test-reminder diagnostic* and *battery prompt inside onboarding* — the
+  exemption lives only in Settings for now (onboarding flow untouched to keep
+  the change reviewable).
+
+### A. Default reminders (global + per-calendar override)
+
+**No provider backing.** `CalendarContract` has no column that auto-applies a
+default reminder per calendar — Google's per-calendar defaults live server-side.
+So both the global default *and* the per-calendar override are **app-side
+preferences**, applied by us at event-insert time. We inherit nothing from the
+synced calendar.
+
+- **Storage (DataStore):**
+  - `defaultReminderMinutes: Int?` — global default; `null` = "no reminder".
+  - `defaultAllDayReminderMinutes: Int?` — separate all-day default (all-day
+    reminders are expressed as minutes before midnight / day-before-at-time, not
+    minutes before a start instant — they need their own value).
+  - `perCalendarReminderOverride: Map<Long, Int?>` — keyed by calendar id;
+    **absent key = inherit global**, explicit `null` = "no reminder for this
+    calendar". (Same for an all-day override map if we want per-calendar all-day.)
+- **Apply on create:** a fresh event prefills its reminders list from
+  override-or-global for the preselected calendar. Changing the calendar in the
+  form re-applies the *new* calendar's default **only if the user hasn't manually
+  edited the reminders** — track a dirty flag, mirroring the per-event-color
+  reset pattern (v2.4).
+- **Edit semantics:** defaults apply to **new events only**; never rewrite
+  reminders on existing events on open or on calendar-switch-during-edit.
+- **Settings UI (Notifications sub-page):**
+  - Global default via OptionCard (None / at time of event / 5 / 10 / 15 / 30 min
+    / 1 h / 1 day / custom), plus the separate all-day default.
+  - Per-calendar overrides: a row per writable calendar (in the Calendars screen
+    or a Notifications subsection), each opening the same OptionCard with a
+    leading **"Use global default"** option.
+
+### B. Delivery reliability (exact alarms + battery)
+
+The provider broadcasts `EVENT_REMINDER`, but on modern Android (Doze / OEM
+battery managers) delivery can be silently delayed or dropped. v1.4 deferred this;
+it directly undermines the feature's premise, so it rides in here.
+
+- **Exact alarm — decision first:** trust the provider broadcast, or
+  self-schedule via `AlarmManager.setExactAndAllowWhileIdle` for reliability?
+  If we self-schedule, declare `USE_EXACT_ALARM` (API 33+, auto-granted for
+  calendar/alarm-category apps, F-Droid-clean) with a `SCHEDULE_EXACT_ALARM`
+  fallback for API 31–32 (user-revocable → settings deep-link prompt).
+- **Battery-optimization exemption:** a *soft, optional* prompt via
+  `ACTION_REQUEST_IGNORE_BATTERY_OPTIMIZATIONS` (settings deep-link — never the
+  auto-grant intent), honest copy: "Android may delay reminders to save battery;
+  exempt Calendula for on-time delivery." Shown once after the existing
+  `POST_NOTIFICATIONS` onboarding step, reversible in Settings → Notifications.
+- **Diagnostics:** a "send a test reminder in 1 minute" button in Notifications
+  settings so users can verify delivery on their specific OEM (Samsung / Xiaomi
+  are notorious for suppressing it).
+
+### Open decisions (resolve before building)
+
+1. Self-schedule via `AlarmManager` vs trust the provider broadcast
+   (reliability vs simplicity + battery cost).
+2. All-day reminder representation (minutes-before vs absolute time-of-day).
+3. Where per-calendar overrides live in the UI (rows on the Calendars screen vs
+   a list inside the Notifications sub-page).
+
+### Later (round two)
+
+- Snooze + dismiss actions on the notification (snooze needs an
+  exact-alarm / WorkManager decision) — Tier 4 #13.
+
+## Sharing & interop
+
+- Share event as .ics + open/receive .ics into a prefilled create form
+  (front-runs the import below)
+- ICS file import (drag-and-drop) *(was v3.0, optional)*
+
+## Platform & launchers
+
+- ~~Home-screen widget~~ **shipped v2.5.0** — agenda + month widgets
+- ~~App shortcuts (launcher long-press → New event)~~ **shipped v2.5.0** —
+  optional quick-settings tile still open
+
+## Quality & reliability
+
+- **Accessibility pass** — TalkBack content descriptions across all screens,
+  dynamic-type / large-font reflow, touch-target audit. Quality bar for an
+  F-Droid app; nothing tracks it yet.
+- **Reminder delivery reliability** — exact alarms + battery-optimization
+  exemption; specced in the "Reminders — defaults & delivery reliability" slice
+  above (Tier 4 #9).
+
+## Locations & People *(go/no-go, captured 2026-06-11)*
+
+Beyond classic calendar-client scope; discussed, deliberately not planned
+in detail yet:
+
+- **Contact address picker** for the location field via the system picker
+  (`ACTION_PICK` on postal addresses) — one-shot, needs no READ_CONTACTS,
+  fits the privacy story. Same mechanism later for picking emails.
+- **OSM address autocomplete** in the location field (type "Brandenburger
+  Tor" → tap suggestion → resolved address inserted). Backend would be
+  Photon (Nominatim's public policy forbids autocomplete). **Requires the
+  INTERNET permission** — first dent in the "no network access" promise;
+  if built: opt-in (off by default), honest copy, configurable endpoint
+  for self-hosters, onboarding footnote + F-Droid copy reworded. This
+  trade-off is an explicit go/no-go decision before any work starts.
+- **Inline contact suggestions** while typing (needs READ_CONTACTS) — only
+  if the picker proves clunky.
+- **Attendee editing / invites from contacts** — own milestone; writing
+  `Attendees` rows touches sync-adapter invitation behavior (Google vs
+  DAVx5 differ).
+
+## Consciously rejected
+
+- Travel time / weather / smart suggestions (network, core-promise conflict)
+- Natural-language quick entry (high effort, locale-fragile; the prefilled
+  form already covers fast entry)
+- Quick-add sheet (the prefilled full form already covers it — cut in v2.0)

.planning/STATE.md

@@ -0,0 +1,130 @@
+# Calendula — Current State
+
+*Last updated: 2026-06-17*
+
+## Status
+
+**Milestone:** 2 (write support) **complete** — v2.0.0 shipped 2026-06-11;
+v2.1.0 (month event grid, drawer view tabs, cursor fix) shipped 2026-06-15.
+**Phase:** post-2.1 backlog work. v2.2.0 (tap-to-create in day/week + local
+calendar management) and v2.3.0 (Material 3 grouped-list redesign of Settings,
+the calendar manager and the navigation drawer) both shipped 2026-06-16;
+v2.4.0 (per-event colors) and v2.5.0 (jump-to-date, Agenda view, home-screen
+agenda + month widgets, and a "New event" launcher shortcut) shipped
+2026-06-17. The backlog is now organised by theme in `ROADMAP.md`.
+
+## Progress
+
+- [x] Design spec written and committed (`docs/superpowers/specs/2026-06-08-calendar-app-design.md`)
+- [x] V1 design decisions resolved (App name "Calendula", icon, seed color)
+- [x] Plan 01 written and executed — foundation lands (theme, icon, i18n, Hilt, DataStore, CI green)
+- [x] Plan 02 written and executed — data layer + permission flow + debug screen
+- [x] Month view (S1) — 6-week grid, event dots, today marker, swipe nav, three states (replaces debug screen)
+- [x] Week view (S2) — time schedule with overlap-resolved lanes, all-day strip, swipe nav, three states
+- [x] Day view (S3) — single-column slice reusing the week layout
+- [x] View-switcher (M1) wired — cycles Month ↔ Week ↔ Day
+- [x] Event-detail screen (S4) — full-screen, humanized recurrence
+- [x] Filter sheet (M3) — per-calendar visibility, grouped by account, persisted, applied centrally in the repository
+- [x] Settings (M4) — appearance (theme, dynamic colour, week start), language (per-app locales), about
+- [~] Jump-to-date (M2) — **cut from scope**; "Today" half shipped in v0.5, date-picker dropped
+- [x] Full event read (v0.6) — reminders, status, availability, access level,
+  attendee role + self-response, foreign timezone, and linkified description
+  URLs in the detail view; new domain enums + mapper unit tests. (A dedicated
+  URL field was cut — no `CalendarContract` column backs it.)
+
+- [x] v1.1 write foundation — `WRITE_CALENDAR` (onboarding asks READ+WRITE,
+  only READ gates; contextual upgrade for v1.0 installs), read-only-calendar
+  detection (`CALENDAR_ACCESS_LEVEL` → `canModifyContents`, actions hidden for
+  WebCal/birthday calendars), delete from the detail screen (recurring:
+  "only this event" via cancelled exception / "all events in the series"),
+  repository + mapper tests
+
+- [x] v1.2 create event — full-screen `EventEditScreen` (title, all-day,
+  M3 date/time pickers with duration-preserving start moves, writable-only
+  calendar picker preselecting the last-used calendar, location, description),
+  "+" FAB on all three views prefilled with the visible day, `insertEvent`
+  with provider-correct all-day normalisation (UTC midnights, exclusive end),
+  domain/mapper/repository tests
+
+- [x] v1.3 edit event (shipped 2026-06-11) — `EventEditScreen` reused for
+  edit (detail-screen Edit action, `canModify`-gated, contextual WRITE
+  upgrade), dirty-checked partial `update` on the Events row (recurring:
+  series DTSTART moves by the user's delta, DURATION instead of DTEND),
+  reminder diff by minutes (kept rows keep their method), simple recurrence
+  picker (FREQ/INTERVAL/UNTIL/COUNT; complex RRULEs preserved verbatim and
+  shown humanized), `EventFormField.Recurrence` incl. settings default,
+  recurrence also available on create; domain/mapper/repository tests.
+  Review round 1: weekly BYDAY day-toggles in the custom picker ("every week
+  on Mon+Fri"). Review rounds 2–4: occurrence edit pulled forward from v2.0
+  and made three-way like delete ("this" = exception row via
+  `CONTENT_EXCEPTION_URI`, "this and following" = series split, "all" =
+  series update); delete equally three-way (truncation via RRULE UNTIL);
+  the edit-scope question moved to save time (Google model) — dirty
+  recurring saves park in `SaveUiState.AwaitingScope`, a changed rule drops
+  the "only this event" option
+
+- [x] v1.4 reminder notifications (shipped 2026-06-11) — exported
+  `EVENT_REMINDER` receiver → `CalendarAlerts` (SCHEDULED & due) →
+  dedicated channel, tap opens detail (singleTop deep link); best-effort
+  FIRED marking; one-time onboarding step requesting `POST_NOTIFICATIONS`
+  with duplicate-reminders warning; Settings mirror. Provider only fires
+  `METHOD_ALERT` rows (AOSP-verified), so email reminders never reach us
+
+- [x] v2.0 conflict dialog + store polish (shipped 2026-06-11 as v2.0.0) —
+  `EditSnapshot` compare on save (overwrite/discard; deleted → close),
+  quick-add cut, calendar-switch → v3 backlog; F-Droid/README copy
+  refreshed, fastlane screenshots DE+EN captured on-device
+
+- [x] v2.1 (shipped 2026-06-15) — month grid shows real events as
+  continuous multi-day bars; navigation-drawer View section
+  (Month/Week/Day); cursor-jump fix in event text fields
+
+- [x] v2.2 (shipped 2026-06-16) — tap an empty slot in day/week to create
+  (prefilled with that day + tapped hour, snapped to the hour); local
+  calendar management in a full-screen editor from Settings →
+  Calendars: create/rename/recolor/delete device-only calendars
+  (`ACCOUNT_TYPE_LOCAL`, sync-adapter insert) with name, pastel-previewed
+  colour, and description (stored in `CAL_SYNC1`); synced calendars listed
+  read-only grouped by account with a per-account "manage in source app"
+  deep-link (resolved from the account's authenticator: DAVx5/ICSx5/…) and
+  an add-account shortcut. Shared `InlineTextField` extracted to `ui.common`
+
+- [x] v2.3 settings/calendars/drawer redesign (shipped 2026-06-16) — adopted a
+  shared Material 3 grouped-list blueprint, modelled on the ReFra gallery app
+  and extracted to `ui/common/GroupedList.kt` (`CollapsingScaffold` with a
+  `LargeTopAppBar` exit-until-collapsed title; `GroupedRow` with Position-based
+  corner grouping, press-animated corners, `selected` + `minHeight` knobs).
+    - Settings: category hub (About card on top → version mark at the foot) with
+      sliding sub-pages (Appearance / New event form / Notifications); token-
+      based icon chips; theme/week-start/language pickers migrated from
+      `DropdownMenu` to OptionCard dialogs. New `ic_gitea.xml` (Simple Icons,
+      verbatim path) for the About "Source" button; en+de strings.
+    - Calendar manager: same collapsing scaffold + grouped rows; shared
+      `CalendarColorChip` (neutral chip, pastelised calendar glyph).
+    - Navigation drawer: branded header, grouped View switcher (active view
+      highlighted via `secondaryContainer`), the filter list restyled to
+      grouped rows with a trailing checkbox; the whole drawer scrolls as one.
+    - Cards use `surfaceContainerHigh` for readable contrast against `surface`.
+    - Donate button on the About card deferred (target still TBD).
+
+- [x] v2.4 per-event color (shipped 2026-06-17) — an optional "Color" field in
+  the event form. Read/render already resolved `EVENT_COLOR` with a calendar
+  fallback; this adds the write side and the picker. Palette-backed calendars
+  (Google, some CalDAV) pick from the account's `Colors` (`TYPE_EVENT`) and
+  write `EVENT_COLOR_KEY` so the color round-trips through sync; local
+  calendars write a raw `EVENT_COLOR` from the shared `CALENDAR_COLOR_PALETTE`
+  (extracted with the swatch row to `ui/common/ColorSwatchRow.kt`). Switching
+  calendars resets the choice (a key is account-scoped). A settings toggle
+  ("Allow colors on unsupported calendars", off by default) extends the raw
+  path to synced calendars with no palette, with an honest "may not survive
+  sync" warning on the picker and in Settings. Color writes flow through
+  insert / dirty-checked update / occurrence-exception; mapper + form tests.
+
+## Next
+
+1. Monitor the F-Droid build/publish for the v2.4.0 tag
+2. Decide the "Locations & People" and "remote calendar create/edit"
+   go/no-go calls (both hinge on the INTERNET permission) — see `ROADMAP.md`
+3. **Duplicate event** and **jump-to-date** are the cheap follow-ups; then
+   agenda view (strategic, backs a future widget). Full ranked sequence in
+   `ROADMAP.md` → "Near-term sequence".

CHANGELOG.md

@@ -7,775 +7,6 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
-## [2.18.0] — 2026-07-31
-
-### Added
-- A new event no longer always lasts an hour. **Settings → New event form →
-  Default duration** sets how long one opens, and each calendar may keep its own
-  length underneath — 8 hours for the calendar you keep work shifts in, 30
-  minutes for the one you book calls in. A calendar without its own length
-  follows the default, switching calendars mid-form re-stretches the event, and
-  setting an end time by hand keeps it. An event another app hands over with only
-  a start gets the default too; one that names its own end — an `.ics` file, a
-  duplicate — keeps that length. All-day events are unaffected ([#54]).
-- Week and day view can be set to show more or less of the day at once, under
-  Settings → Views → Week & day → **Hour height**. **Fit whole day** sizes an
-  hour to your screen so all 24 hours are visible without scrolling — on a tall
-  phone the old fixed spacing showed only about half a day, so appointments
-  could sit below the fold all week. Compact and Comfortable are fixed steps
-  either side of the previous spacing, which stays the default. Both views share
-  the setting ([#56]).
-- Week and day view can be **pinched** with two fingers to set the hour height
-  directly, anywhere between and beyond the named steps. The time under your
-  fingers stays put as it zooms, so you keep your place in the day. A pinched
-  height is remembered and appears as **Custom** in the Hour height setting, so
-  tapping a named step there takes you back to it ([#56]).
-
-### Changed
-- The date in the top bar is now the way to jump: tapping the month, week or day
-  title opens the same date picker the sidebar's **Jump to date** offers, seeded
-  on whatever the bar is naming. A drop-down caret marks it as tappable. The
-  sidebar entry stays where it is ([#57]).
-- A reminder in the status bar is now Calendula's own mark — the calendar with
-  the bloom — instead of the generic calendar glyph it shared with the system's
-  date surfaces and every other calendar app. The status bar draws that icon as
-  a plain silhouette, so its shape is the only thing that could tell them apart
-  ([#83]).
-- Event blocks now only draw text they can draw whole. One too short for a full
-  line shows no title rather than a sliced one, a block that cannot fit both its
-  title and its time keeps the title, and a block too narrow to hold more than a
-  syllable stays on one ellipsised line instead of stacking letters down the
-  block. Tapping and the spoken description are unchanged ([#56]).
-- Calendar colours are reworked so text on an event is always readable. They
-  were shaped by a brightness setting that does not match what the eye sees, so
-  whether a block got dark or light text depended on which hue you happened to
-  pick — an orange calendar took dark text while a red one beside it took light
-  — and colours landing in between were hard to read either way. Each colour now
-  keeps its hue and is moved clear of that middle: most become deep blocks with
-  light text, while naturally pale colours such as yellow stay pale and take
-  dark text, rather than being forced into a muddy brown. Dots, stripes and
-  icons are tuned separately from blocks, so they stay visible against the
-  background instead of sharing a colour meant to sit behind text. The setting
-  is now called **Harmonise calendar colours**; turning it off still shows the
-  raw colours from your calendar source ([#21], [#36]).
-
-### Fixed
-- The back gesture closes the sidebar instead of the app. With the drawer open,
-  swiping back left Calendula altogether rather than putting the sidebar away
-  ([#114]).
-- The sidebar lines up. "Calendula", "View" and "Calendars" now share the left
-  edge of the rows under them, and the view, jump-to-date, Settings and calendar
-  rows sit on one vertical axis instead of each icon finding its own — the same
-  alignment the Settings screens use ([#114]).
-- The status- and navigation-bar icons follow Calendula's own light/dark choice.
-  Setting the app dark while the system stayed light — or the other way round —
-  left the clock and battery drawn for the system's theme, so they could sit
-  near-invisible against the app's own bar ([#70]).
-
-## [2.17.1] — 2026-07-30
-
-### Added
-- Settings → Calendars now says what is different about a calendar instead of
-  leaving you to guess. Ones you can only view — a subscribed calendar, a
-  calendar shared with you read-only — are marked **Read-only** ([#76]).
-- Calendars your device isn't syncing are marked **Not synced**, moved to the
-  bottom of their account and left without a switch. None of their events are on
-  the device, so the switch they used to have could not have shown you anything
-  — the calendar simply looked broken. They are no longer offered when you pick
-  a calendar for a new or an imported event either: an event saved there would
-  never reach the account. Whether an account syncs a calendar stays that
-  account's own app's decision ([#78]).
-- The birthday and anniversary calendars Calendula fills from your contacts are
-  marked **Filled from your contacts**, which is why they can't be picked for a
-  new event: anything you put there would be removed again on the next sync.
-  Deleting one is held back while special dates are switched on — Calendula
-  would simply create it again — and the calendar's editor says so; turn the
-  feature off under Settings → Special dates and the delete works as usual
-  ([#76]).
-- The calendar picker in the event form and in the .ics import screen now ends
-  with a **"Missing a calendar?"** row that opens Settings → Calendars, where
-  those marks then explain why a calendar isn't offered ([#76]).
-- The agenda widget's text size is yours to set. **Settings → Widgets & tiles →
-  Agenda widget size** offers Small, Medium, Large and Extra large, replacing the guess
-  the widget used to make from its own measurements. Small is what it looks like
-  today, so nothing changes until you turn it up ([#51]).
-- A repeating event now shows you its next few dates, not just a description of
-  the rule. Both the preset list and the custom recurrence picker carry a
-  **Next:** line — "Next: 30 Jul, 6 Aug, 13 Aug" — under the rule they would
-  save. A phrase like "monthly" on the 31st, or "every 2 weeks on Mon & Fri",
-  can mean something other than it sounds like, and only the dates say so. A
-  rule that can never fire says that instead ([#69]).
-- The event visibility options now say who they affect. **Public**, **Private**
-  and **Confidential** each carry a line about what other people on a shared
-  calendar see — the part the four words on their own leave out ([#69]).
-
-### Changed
-- **Settings has been reorganised so each setting sits where you would look for
-  it.** One long undifferentiated list is now three labelled groups — Look &
-  behaviour, Data, and App — whose rows open sub-screens and say what they do
-  rather than only naming themselves. Appearance, Views, New event form,
-  Notifications and the new Widgets & tiles are separate screens now, so the
-  settings for a calendar view are no longer mixed in with the ones for the
-  app's colours or for the home-screen widgets ([#69]).
-- Settings that are hard to picture from their name now show you what they do.
-  The week-start picker rearranges a real month grid as you choose, the
-  past-events setting previews a sample agenda day for Show, Dim and Hide, the
-  font pickers set a specimen line in the face you are choosing, and the Agenda
-  range options carry the dates each one actually covers. Options that follow
-  the system additionally name which way they currently fall ([#69]).
-- **Backup & restore** is now its own Settings entry instead of living inside
-  the calendar manager, where it was easy to miss — keeping a copy of your
-  calendars is a different question from which calendars you have. The calendar
-  manager keeps a row pointing to it, and nothing about how backup or automatic
-  backup works has changed ([#69]).
-- Calendula's source code now lives on **Codeberg**, where its issues already
-  were. The **Source code** and **License** links in Settings → About point
-  there, so reporting a bug and reading the code no longer land on two different
-  sites. Nothing about the app itself changes, and the F-Droid repository is
-  unaffected.
-
-### Fixed
-- A month-grid widget stays a month grid, and draws all seven days again. Since
-  2.16.0 a placed month widget could redraw itself as the agenda widget a little
-  after any change to your events, and could draw only about four day columns
-  with the last one cut off part-way through. Both came from the release build
-  merging the two widgets into a single class, so Android could no longer tell
-  which of them a widget on your home screen was — and the month grid was handed
-  the wrong widget's measurements to lay its columns out against ([#89], [#103]).
-- The back gesture on **Settings → Views** returns to Settings instead of
-  leaving Settings altogether and dropping you on the calendar. Special dates
-  did the same ([#81]).
-- The dots standing in for the events that didn't fit a day in the month view
-  now dim with everything else when **Dim completed events** is on. A past day
-  with four or more events kept its last events at full strength while the rest
-  faded ([#79]).
-- Two accounts that happen to share a name — a Google account and a DAVx5
-  account for the same address, say — are no longer merged into one group.
-  They were listed together in Settings → Calendars and in the drawer's filter,
-  which also meant the group's source icon and its "manage in app" button could
-  send you to the wrong app, "toggle all" spanned both accounts at once, and
-  collapsing one collapsed the other. Where a name really is shared, each group
-  now names the app it comes from ([#77]).
-- In the month view's **Split** style, the new-event button now starts on the
-  day you have selected. It always started on today, whichever day was selected
-  and listed below the grid ([#87]).
-- Search results now show an all-day event's real date. West of UTC — anywhere in
-  the Americas, say — a search hit was dated one day early, disagreeing with the
-  day the month, week and agenda views file the same event under ([#82]).
-- Reminders no longer depend on Android telling Calendula when they are due.
-  Calendula now works out each reminder's time itself and sets its own alarm for
-  it. On some phones — Samsung's among them — the system's calendar storage never
-  sends the signal a calendar app is meant to wake up on, and no amount of
-  battery or notification settings helps: the reminder is simply never announced.
-  None of that is visible from inside an app that waits to be told, which is why
-  it took a second pass to find ([#75]).
-
-  Reminders also survive things that used to lose them quietly. After a restart
-  or an app update Calendula re-arms its alarms, and a reminder whose moment
-  passed while the phone was off still arrives, as long as the event has not
-  ended yet.
-
-- All-day reminders now arrive at the time you chose in **Settings →
-  Notifications**, on every occurrence. A yearly birthday could drift an hour
-  either way depending on daylight saving, and all-day reminders on calendars
-  from an account fired in the middle of the night instead of in the morning
-  ([#75]).
-
-- Reminders now arrive for every calendar you have switched on. A calendar that
-  was hidden at system level — switched off in another calendar app, or never
-  switched on after being added — still showed its events and listed their
-  reminders in Calendula, but never notified: Android only schedules reminder
-  alarms for calendars marked visible, and Calendula kept its own separate
-  on/off list that had no say in it. There is now one switch: **Settings →
-  Calendars** turns a calendar on or off for the whole device, so what you see
-  and what reminds you can no longer disagree ([#75]).
-
-  Calendars you had switched off in Calendula are switched off here too on first
-  launch. Calendars that were already off — hidden in another calendar app, or
-  never switched on after being added — stay off, and Calendula says so once
-  rather than quietly switching them on for every app on your device; you can
-  turn any of them back on in Settings → Calendars.
-
-  If you gave Calendula read-only access to your calendars, the switch still
-  works: your choice is kept in the app until it can be written.
-
-  The drawer's filter is unchanged and still app-only: hiding a calendar there
-  tidies your view without silencing its reminders.
-
-## [2.16.0] — 2026-07-24
-
-### Added
-- Choose how the month view is laid out. A new **Month view style** setting
-  (Settings → Views) offers three ways to read a month, each shown with a
-  preview of the layout it produces:
-  - **Pages** — what you have today: one month at a time, swiped sideways.
-  - **Continuous** — scroll up and down through the weeks without a break
-    between months. Because the weeks run on unbroken, no month is cut off and
-    no day appears twice, where paging repeats a boundary week at the end of one
-    month and the start of the next. The 1st of each month names itself so you
-    always know where you are, and the title bar keeps up as you scroll ([#38]).
-  - **Split** — a compact grid showing coloured dots for the days that have
-    something on them, with the day you tap listed in full underneath. Tap the
-    date above the list to open the whole day ([#53]).
-
-  The Agenda view is untouched by this and stays available in all three styles —
-  the split layout lists a single day, while Agenda remains a rolling multi-day
-  window with its own range settings.
-- Give an event its own time zone. A new **Time zone** field (under "more
-  fields" in the event form) pins an event to a specific zone, so a call set for
-  8:00 AM in New York stays 8:00 AM in New York wherever you open it — and keeps
-  tracking that zone across daylight-saving changes instead of drifting an hour.
-  The form edits the event in its own zone and shows the local equivalent under
-  the times ("2:00 PM – 3:00 PM your time"); the event's details keep your local
-  time first and note the original beneath it, so both are always clear. Pick a
-  zone from a full-screen picker with your device zone and recent choices on top,
-  searching by city ("new york"), IANA id ("europe/berlin"), or abbreviation
-  ("CEST") to gather every matching zone at once. All-day events stay
-  date-anchored and carry no zone, as before ([#31]).
-- Put the "jump to today" button in the toolbar. A new **Today button in
-  toolbar** setting (Settings → Appearance, off by default) swaps the floating
-  button that fades into the corner while you're away from today for a permanent
-  today icon in the top bar — always there, on today or not, matching the
-  familiar calendar-app pattern. Leave it off to keep the floating button as
-  before ([#60]).
-- Choose what Calendula calls itself on your home screen. A new **App name**
-  setting (Settings → Appearance) switches the launcher label between
-  **Calendula** and **Calendar**, for launchers that can't rename apps
-  themselves. Pick from a full-screen chooser that previews both names as
-  launcher marks; the change applies at once ([#44]).
-- Calendula now speaks **Arabic**, laid out right-to-left, and its French and
-  Italian translations have been brought up to date — thanks to the community
-  translators on Weblate. Pick a language under Settings → Language (or leave it
-  on the system default).
-
-### Changed
-- Dates in the Month, Week and Day title bars now follow your language and
-  region instead of one hardcoded layout. Every date was rendered in a fixed
-  German-style order with a trailing dot on the day number, whatever your
-  settings: US English showed "Fri, 17. Jul 2026" where it should read
-  "Fri, Jul 17". The Agenda view already formatted correctly, so the two
-  disagreed about the same date. All four views now share one formatter, and the
-  day/month order, the separators and the ordinal all come from your locale —
-  so English-in-Germany reads "Fri, 17 Jul" and English-in-the-US "Fri, Jul 17",
-  each correct for where you are ([#60]).
-- The title bar drops the year while you're in the current one — "July" rather
-  than "July 2026". The year reappears the moment you page out of the current
-  year, which is when it tells you something you didn't already know.
-- The Week view's title now names the month instead of spelling out the day range.
-  "24. Jun – 31. Jun" restated the day numbers already printed in the column
-  headers right below it, in the widest string in the bar. A week that straddles
-  two months keeps the outgoing month until it is fully gone ([#60]).
-- The custom recurrence picker has been redesigned and tightened up. As you
-  build a rule — "every 2 weeks on Mon & Wed, until a date" — the live summary
-  now describes exactly what will be saved rather than a near-copy that could
-  drift from it, the amount fields accept being left blank (reading as their
-  shown default instead of greying out OK), and the read-out no longer jumps
-  around as you tap weekdays ([#42]).
-
-### Fixed
-- An all-day event no longer shows up again the day after it happened. In time
-  zones east of UTC, an all-day event — a birthday, say — set for one day also
-  appeared under the *next* day's heading in the Agenda (and the agenda widget),
-  because all-day events are anchored to UTC midnight and the following day's
-  window reached back across that boundary and pulled the event forward onto
-  "today". Each all-day event now lists only on the day it actually falls on
-  ([#65]).
-- A multi-day event now shows under every day it spans in the Agenda, not just
-  its first day, so a trip or a multi-day booking appears on each day it covers.
-- The "Upcoming" agenda widget now scales its text and rows to the size you give
-  it. Previously it was laid out once for the smallest size and simply stretched
-  when enlarged, so the text stayed small no matter how big you made the widget.
-  Now a bigger widget gets bigger, more readable type and roomier rows, while the
-  default size looks exactly as before — no new setting; it follows the size you
-  already chose ([#51]).
-- Calendula now appears under other apps' "Add to calendar" / "Save to calendar"
-  actions. Some apps (e.g. DB Navigator) fire the widely-used "insert event"
-  intent with the singular `vnd.android.cursor.item/event` type, which Calendula
-  didn't advertise — so it was left out of the chooser, and if it was your only
-  calendar app the save silently did nothing. It now accepts that form, plus the
-  `INSERT_OR_EDIT` action, and opens the new event prefilled for review ([#74]).
-- Opening a `.ics`/`.vcs` file now works even when another app hands it over
-  mislabelled as a generic download (`application/octet-stream`), as some mail
-  clients, browsers and file managers do — Calendula recognises it by its file
-  extension instead of relying on the declared type ([#74]).
-- A recurrence end date no longer lands a day late. West of UTC, setting a rule
-  to end "until" a given day could save and show the day after the one picked;
-  the end date now reads back as chosen ([#42]).
-- The status- and navigation-bar icons stay legible over full-screen pickers in
-  dark theme. They could render dark-on-dark — a near-invisible black clock
-  against the dark picker — instead of switching to light ([#70]).
-
-## [2.15.0] — 2026-07-15
-
-### Added
-- Show raw calendar colours. Calendula normally softens each calendar and event
-  colour toward a theme-fitting pastel so harsh sync colours read well on both
-  light and dark; a new **Soften calendar colours** setting (Settings → Design,
-  on by default) lets you turn that off and paint the exact colours your calendar
-  source publishes — matching DAVx5/CalDAV and other calendar apps. Thanks to
-  @leonp5 for the report ([#36]).
-- Readable titles on dark event colours. An event bar's title now shows in white
-  on a dark colour and near-black on a light one, chosen automatically from the
-  colour's brightness, so a deep blue or purple event is legible at a glance in
-  the busy Week and Month views instead of dark-on-dark. This applies whether or
-  not colours are softened. Thanks to @ptab for the suggestion ([#21]).
-- A custom snooze duration. The **Snooze duration** setting (Settings →
-  Notifications) gains a **Custom…** option next to the minute presets: pick any
-  amount and switch between minutes and hours, so a snoozed reminder comes back
-  after exactly the delay you want instead of only a preset one ([#40]).
-- Move an event to another calendar. When editing an existing event, the
-  calendar row is now tappable — pick a different calendar and saving moves the
-  event across, instead of having to delete it and recreate it elsewhere.
-  Recurring series move as a whole, keeping their individually-edited and
-  cancelled occurrences, and any reminders and guests come along too. A calendar
-  can't simply be reassigned underneath an event, so Calendula recreates it on
-  the target and removes the original — the same approach other calendar apps
-  take. Thanks to @prismplex for the suggestion ([#39]).
-- Open an event straight into the edit form from another app. Calendula already
-  answered the "new event" and "open this event" hand-offs from other apps and
-  widgets; it now also answers the "edit this event" one, so an assistant, task
-  app, or widget can send an existing event to Calendula and land on its edit
-  screen rather than the read-only details. A hand-off with no event attached
-  opens the same prefilled create form as "new event". Calendula also recognises
-  a couple more file labels the same calendar data arrives under (`.vcs`
-  vCalendar files and the `application/ics` type), so opening or sharing those
-  into Calendula works too.
-- Keep today at the top of the agenda. A new **Always show today** setting
-  (Settings → Agenda, on by default) anchors today as the first entry in both the
-  Agenda screen and its home-screen widget even once nothing is left today —
-  under today's header a "No more events today" note appears — so the first
-  events you see are clearly today's rather than a future day's. Turn it off to
-  keep the agenda purely upcoming. Thanks to @ptab for the suggestion ([#35]).
-- Duplicate an event. The event details now carry a **Duplicate** action that
-  opens the editor pre-filled with a copy of the event as a new, unsaved one, so
-  a one-off like a shift or an appointment can be recreated by just changing the
-  day and time instead of re-typing every field. The copy keeps the original's
-  time, and its title, location, notes, colour, guests and reminders come along;
-  it's saved as its own single event (any repeat is left off — add one in the
-  editor if you want it). Duplicate works from read-only calendars too, dropping
-  the copy into a writable one. Thanks to @internet-rando for the suggestion
-  ([#52]).
-- French and Polish, in early form. Calendula has started speaking French and
-  Polish, both contributed as community translations through
-  [Calendula's Weblate](https://weblate.dev.jeanlucmakiola.de/projects/calendula/).
-  They are partway there, so untranslated parts still show in English until they
-  fill out — you can already pick either under Settings → Language or in Android's
-  per-app language settings. Thanks to Thomas Tref (French) and Bazyli Cyran
-  (Polish) for getting them started; help finishing them is very welcome.
-
-### Fixed
-- Reminders for events on another day no longer read as if they were today. A
-  reminder fired ahead of time — say, the day before — used to show only the
-  event's time, making it look like it was happening now. The notification now
-  says which day: **Tomorrow** or **Yesterday**, the weekday for another day this
-  week, or the date for anything further out. Thanks to @moonj for the report
-  ([#46]).
-- Agenda dates now read in your locale's format. The agenda's range bar and its
-  day headers used a fixed day-month-year layout — and the range span even mixed
-  two orders (e.g. "15 Jul – Aug 13, 2026") — instead of following your language's
-  conventions. Dates across the agenda and its widget now use your locale's own
-  field order, matching the rest of the app. The range bar also no longer repeats
-  the range's name from the selector button beside it, showing just the dates.
-- Calendar gutters line up with the menu button. The Month view's week-number
-  column, and the Week and Day views' hour labels, sat a few pixels left of the
-  hamburger menu above them; they now line up with it. In Month view the day
-  cells also sit squarely under their weekday letters.
-
-## [2.14.1] — 2026-07-13
-
-### Fixed
-- Deleting one occurrence of a repeating event no longer breaks the series.
-  Choosing "This event" when deleting an occurrence of a recurring event could
-  wipe out every *other* occurrence while leaving the one you deleted behind as
-  a stale, still-tappable ghost — and deleting it again brought the series back.
-  A single-occurrence delete now removes exactly that occurrence and leaves the
-  rest of the series untouched, and the deleted occurrence disappears from the
-  grid straight away. This holds on every kind of calendar, including the
-  on-device ones Calendula keeps for contact birthdays and anniversaries, where
-  the series is a yearly repeat. Thanks to @moonj for the report ([#47]).
-- Tapping an event in a third-party widget opens it in Calendula. v2.13.1 taught
-  Calendula to answer the "new event" hand-off from other apps and widgets; now
-  it also answers the "open this event" one, so tapping an existing event in a
-  widget such as Todo Agenda offers Calendula and lands on that event's details.
-  Thanks to @bushrang3r for the report ([#48]).
-- Events created from other apps get your default reminder. An event handed over
-  by another app or widget — Google Maps' "add to calendar", the Todo Agenda
-  widget's "+" — opened with no reminder at all, ignoring the default set in
-  Settings. It now starts with your default reminder, the same as an event you
-  create in Calendula. An event opened from an `.ics` file is treated differently,
-  because the file has its own say: Calendula keeps whatever reminders it carries
-  (including none at all) and asks you once whether to apply your default instead
-  — it never quietly overrides the file. If you have no default set, it doesn't
-  ask ([#49]).
-- A tidy colour picker on CalDAV calendars. For calendars synced by a CalDAV
-  app (such as DAVx5), the event colour picker showed every colour the account
-  publishes — nearly 150 swatches in alphabetical order, many of them
-  duplicates or near-identical shades. The picker now shows only visually
-  distinct colours, arranged as a rainbow; near-duplicate shades and the
-  washed-out neutrals are folded away so no two swatches look alike. Picked
-  colours still sync exactly as before, and calendars with hand-picked
-  palettes (like Google's) are unaffected. Thanks to @ptab for the report
-  ([#22]).
-
-## [2.14.0] — 2026-07-06
-
-### Added
-- Restore events from a backup file. The backup section of Settings can now read
-  events back **in** from an `.ics` file, not just write one out: pick a file,
-  choose which calendar to import into, and Calendula adds the events — skipping
-  any that are already there and telling you how many it skipped. Export gained a
-  per-calendar selector at the same time, so you can back up just the calendars
-  you pick instead of everything at once ([#32]).
-- Week numbers in Month view. A new **Week numbers** setting (off by default)
-  adds a slim gutter down the left of the Month grid showing the calendar-week
-  number for each row, sized to match the day cells. Handy if you plan or refer
-  to dates by week number ([#25]).
-- Tap a date header to open that day. In Week and Agenda view, tapping a date
-  header now opens that date in Day view — the same drill-in that Month view and
-  the agenda widget already offered, so every view behaves the same way. It makes
-  jumping to a specific day quicker: switch to Week, swipe to the week you want,
-  then tap the date to open it. Thanks to @ptab for the suggestion ([#37]).
-- An early Simplified Chinese translation. Calendula has started speaking
-  Simplified Chinese, contributed as a community translation through
-  [Calendula's Weblate](https://weblate.dev.jeanlucmakiola.de/projects/calendula/).
-  It is still an early effort, so many parts of the app show in English until it
-  fills out — you can already pick it under Settings → Language or in Android's
-  per-app language settings. Thanks to
-  [zh-cn](https://weblate.dev.jeanlucmakiola.de/user/zh-cn/) for getting it
-  started; help finishing it is very welcome.
-
-### Changed
-- Long event titles wrap in the edit screen. When editing an event, a long title
-  now wraps onto multiple lines instead of being clipped to a single line, so you
-  can see and edit the whole thing ([#33]).
-
-## [2.13.1] — 2026-07-06
-
-### Added
-- Create events from other apps and widgets. Calendula now registers the
-  standard "insert event" intent (`ACTION_INSERT` on the calendar events type),
-  so other apps and home-screen widgets — such as the Todo Agenda widget — can
-  hand off to Calendula to create a new event. It opens the new-event form
-  prefilled with whatever they passed (title, start/end time, all-day, location,
-  description, recurrence), and picks your last-used or first writable calendar.
-  Thanks to @dschuermann for the suggestion ([#30]).
-
-### Fixed
-- Some recurring events could not be opened. Events in a series that started
-  before 1970 — for example yearly birthdays or anniversaries synced over CalDAV
-  — showed "Something went wrong" instead of opening, because their stored start
-  time is a negative value that was wrongly treated as invalid. They now open
-  normally and appear in search again. A related case (an event whose stored end
-  precedes its start) is now kept and openable instead of failing the same way.
-  Thanks to @dschuermann for the report ([#34]).
-- The time picker now follows your 24-hour setting. With Calendula set to
-  24-hour time, the clock dial for choosing an event's start and end time still
-  showed AM/PM instead of a 24-hour dial; it now matches your setting (and the
-  same fix applies to the all-day reminder time in Settings). Thanks to
-  @abrossimow for the report ([#27]).
-
-## [2.13.0] — 2026-07-03
-
-### Added
-- Calendula now speaks Spanish and Italian. Both arrived as community
-  translations through [Calendula's Weblate](https://weblate.dev.jeanlucmakiola.de/projects/calendula/)
-  — a **huge thank you** to
-  [kikerw](https://weblate.dev.jeanlucmakiola.de/user/kikerw/) for the Spanish
-  translation and to
-  [corrent](https://weblate.dev.jeanlucmakiola.de/user/corrent/) for the Italian
-  one! Pick your language under Settings → Language or in Android's per-app
-  language settings. Strings added in this very release may still show in
-  English until the translations catch up. Want Calendula in your language?
-  Translating happens entirely in the browser — every contribution is welcome.
-- See your contacts' birthdays and anniversaries in your calendar. A new,
-  **optional** feature (Settings → Contact special dates) mirrors your contacts'
-  birthdays, anniversaries and other dates into local "Birthdays",
-  "Anniversaries" and "Other dates" calendars that stay in sync as your contacts
-  change. Each is a normal local calendar, so you set its colour, visibility and
-  reminders the usual way — new birthdays even start with a reminder a week before
-  *and* on the day. The title format is yours to customise (`{name}`, `{year}`).
-  This is the first feature to use the contacts permission: it is requested only
-  when you turn the feature on, everything stays on your device (Calendula has no
-  internet access), and your contacts are only ever read, never changed. Thanks
-  to @moonj for the suggestion ([#15]).
-- Set more than one default reminder per calendar. A calendar's default
-  reminders — and the global defaults under Settings → Notifications — can now
-  hold several lead times instead of just one, so new events can start with, say,
-  a reminder a week before *and* one on the day. The reminder pickers are now
-  multi-select; per-calendar overrides can still inherit the global default or
-  turn reminders off entirely. Thanks to @moonj for the suggestion ([#14]).
-- Widget headers now open the app. Tapping the month/year title on the month
-  widget opens the app on the month view, and tapping the "Upcoming" title on
-  the agenda widget opens it on your default view — so there's a one-tap way
-  back into the app that lands where you'd expect, instead of only through a day
-  or event. On the month widget, tapping anywhere on a day — not just the small
-  date number — now opens that day, and the "today" button snaps the grid back
-  to the current month in place. Thanks to @rgz46vic and @ptab for the
-  suggestions ([#18], [#20]).
-- Make Calendula's text your own. Settings → Appearance gains **Headings font**
-  and **Body font** pickers: keep the system default, choose a bundled face
-  (Atkinson Hyperlegible, Lora, JetBrains Mono — each previewed in its own
-  face), or load any `.ttf`/`.otf` file from your device, independently per
-  role. Font size and colour stay with Android's accessibility scaling and the
-  app theme, as discussed on the issue. Thanks to @abrossimow for the
-  suggestion ([#19]).
-- Choose what the view-switch button cycles through. Settings → Appearance now
-  lets you pick which views the top-right quick-switch button rotates between
-  and drag them into your preferred order; views you switch off stay reachable
-  from the navigation menu, which can be reordered the same way. Thanks to
-  @abrossimow for the suggestion ([#24]).
-
-### Fixed
-- Month widget arrows and "today" button work again. On release builds the
-  prev/next-month arrows and the jump-to-today control on the month widget did
-  nothing when tapped — code shrinking had stripped the tap handlers behind
-  them. They respond again. Thanks to @rgz46vic for the report ([#18]).
-- Disabled calendars no longer notify. Reminders for events in a calendar you
-  have disabled (Settings → Calendars) are now suppressed instead of still
-  popping up — matching how a disabled calendar's events already stay hidden
-  everywhere else in the app ([#17]).
-- Editing a single occurrence of a recurring event works again. Choosing **Only
-  this event** and saving a change to one event in a repeating series silently
-  did nothing — the change was rejected and the edit form simply reappeared with
-  nothing applied. The edited occurrence is now stored correctly, so the change
-  lands on just that one event and leaves the rest of the series untouched
-  ([#16]).
-- Every calendar can be picked when creating an event. The event editor's
-  calendar picker was a fixed-height dialog, so with many calendars anything
-  past the first nine or so was simply unreachable. It is now a full-screen,
-  scrollable list grouped by account, with each calendar's colour shown.
-  Thanks to @dschuermann for the report ([#29]).
-
-## [2.12.0] — 2026-06-28
-
-### Added
-- See past events your way. Two new settings change how events that have already
-  ended are shown. **Past events** (Settings → Appearance → Agenda) lets the
-  agenda — both in the app and the home-screen "Upcoming" widget — keep them as
-  usual, dim them, or hide them from the list entirely. **Dim completed events**
-  (Settings → Appearance) separately fades finished events in the month and week
-  views. Both are off by default, an event only counts as finished once it has
-  actually ended (events still in progress are never dimmed), and the lists
-  update on their own as the day goes on. Thanks to @ptab for the suggestion
-  ([#12]).
-
-### Changed
-- Readable titles on overlapping events. In the week and day views, events that
-  overlap split a day into slim columns where the title used to be clipped to a
-  character or two. The title now wraps across as many lines as the block can
-  fit, and the time is hidden on those narrow blocks so the name can fill the
-  space — so you can tell events apart without opening each one. Thanks to @ptab
-  for the suggestion ([#13]).
-
-## [2.11.2] — 2026-06-28
-
-### Added
-- Jump straight to typing a title. When you start a new event, Calendula now puts
-  the cursor in the title field and opens the keyboard right away, so you can type
-  the name without an extra tap. It's on by default and only affects creating an
-  event — editing never grabs focus — and a new **Focus title on new event**
-  switch (Settings → New event form) turns it off. Thanks to @abrossimow for the
-  suggestion ([#10]).
-
-## [2.11.1] — 2026-06-28
-
-### Fixed
-- Calendula can now be set as your default calendar app. It registers the
-  calendar-app intent filters the system uses, so it appears in the chooser when
-  you tap a date in a launcher or clock — and opening one takes you straight to
-  that day. Android has no way for an app to make itself the default, so you pick
-  it once from the system picker. Thanks to @abrossimow for the report ([#9]).
-
-## [2.11.0] — 2026-06-27
-
-### Added
-- Start the week on any day. The **Week starts on** setting (Settings →
-  Appearance) now offers every weekday — not just Monday or Sunday — alongside
-  the automatic, locale-based default. Thanks to @zmaherdev for the suggestion
-  ([#3]).
-- Choose a 12- or 24-hour clock. A new **Time format** setting (Settings →
-  Appearance) lets you force a 12-hour (2:00 PM) or 24-hour (14:00) clock, or
-  follow the system setting automatically. It applies everywhere times appear —
-  the week and day timelines, agenda, event details, search and reminders — so
-  the format is now consistent across the whole app. Thanks to @zmaherdev for
-  the suggestion ([#6]).
-- Optional hour lines in the timeline. A new **Hour lines** switch (Settings →
-  Appearance) draws a faint separator at each hour in the week and day views,
-  making it easier to see when events start and end. Off by default. Thanks to
-  @zmaherdev for the suggestion ([#5]).
-- Limit how far ahead the agenda looks, and switch it on the fly. New **Agenda
-  range** and **Agenda widget range** settings (Settings → Appearance) let the
-  agenda screen and its home-screen widget each show just today, the rest of this
-  week, the rest of this month, a rolling 7 or 30 days, or a custom number of
-  days — "This week" follows your week-start. The agenda also gains a bar at the
-  top naming the exact dates in view, with a button to switch the range just for
-  the current session (it resets when you reopen the app); the bar can be turned
-  off. Thanks to @zmaherdev for the suggestion ([#4]).
-- Automatic backup of local calendars. A new **Automatic backup** option
-  (Settings → Calendars → Backup) periodically exports your local calendars to an
-  `.ics` file in a folder you choose, on an interval you set (from 30 minutes up).
-  Useful for file-based syncing such as Syncthing, or simply as a safety net — it
-  is a one-way export and never touches your synced accounts. Thanks to @shield
-  for the discussion that inspired it ([#7], [#8]).
-- Field icons in the event-form settings. Each optional-field toggle (Settings →
-  Event form) now shows the same icon the field uses in the new-event form, so
-  the list is easier to scan.
-- Help translate Calendula. A **Help translate** link at the top of **Settings →
-  App language** opens the project's Weblate, where you can add or improve a
-  language in your browser — no coding needed. Contributions in any language are
-  welcome.
-
-### Changed
-- Tidied **Settings → Appearance** into clearer groups (theme & colour, calendar,
-  agenda), and the agenda's empty state now reads "You're all caught up".
-- Reworked **Settings → Calendars**. Local and synced calendars are now grouped
-  into collapsible, source-branded cards — each account shows its app's icon —
-  with a per-account menu to enable or disable all of its calendars at once or
-  open the account in its source app.
-- Reorganised **Settings → Notifications**: reliable-delivery and snooze settings
-  moved up with the other global reminder options, and the per-calendar reminder
-  overrides now fold into a single expandable section.
-- Moved **Add Quick Settings tile** out of the event-form section to its own
-  top-level entry in Settings.
-
-## [2.10.0] — 2026-06-25
-
-### Added
-- Turn a calendar off across the whole app. Settings → Calendars now has a
-  switch on every calendar — both your own and synced ones. Switching one off
-  removes it everywhere: its events disappear from all views and search, and it
-  drops out of the drawer's hide/show filter, the event-form calendar picker and
-  the import target picker. Unlike hiding (the quick per-view checkbox in the
-  drawer), a disabled calendar leaves the app entirely until you turn it back on.
-  Nothing is deleted and no other app is affected — it's a Calendula-only view
-  choice — so you can re-enable it any time from the same screen, where disabled
-  calendars stay listed but dimmed.
-- An optional way to support development. Settings → About now has a "Support
-  development" button that opens Ko-fi in your browser. It's a plain donation
-  link with no perks attached, and it needs no new permissions — Calendula still
-  has no internet access of its own and just hands the link to your browser.
-
-## [2.9.0] — 2026-06-25
-
-### Added
-- Choose the view Calendula opens on. A new **Default view** setting (Settings →
-  Appearance) lets you pick Month, Week, Day or Agenda as the view shown each
-  time you start the app, instead of always opening on Week. Thanks to
-  @devinside for the suggestion ([#1]).
-- The month widget is now interactive: tap any day to open it, or tap an event to
-  open its details. Previously only the month's prev/next/today controls
-  responded. Thanks to @devinside for spotting this ([#2]).
-- Predictive back. Swiping back from a screen — an event, the editor, search or
-  settings — now follows your finger, shrinking the screen to preview what's
-  behind so you can see where Back will take you before you let go; slide it back
-  to cancel. The preview needs Android 14 or newer; on older versions Back works
-  as before.
-- Respect for "Remove animations". If you've turned animations off in your
-  device's Accessibility settings, Calendula now honours it everywhere: motion
-  collapses to a quick fade and the back preview is skipped.
-
-### Changed
-- Smoother, more consistent motion throughout. Expanding sections, list updates
-  in search and agenda, and the onboarding screens now animate the same way
-  across the app, instead of some places sliding or growing while others popped
-  in. Switching between Month, Week, Day and Agenda now cross-fades rather than
-  snapping, while paging within a view keeps its slide.
-
-### Fixed
-- Home-screen widgets now back out the way you came in. A day or event opened
-  from the Agenda widget keeps you in the agenda context, and from the Month
-  widget in the month context — pressing Back returns there instead of dropping
-  you on the week view. More broadly, the app now keeps a real view history:
-  switching views and drilling into a day are retraced by Back one step at a
-  time, down to your default view before the app exits. Thanks to @devinside for
-  reporting ([#2]).
-
-## [2.8.0] — 2026-06-23
-
-### Added
-- Find events fast. A search button in the top bar of every calendar view opens
-  a search box — type a couple of letters and matching events (by title,
-  location or description) appear, soonest first with past events below. Tap a
-  result to open it. Search covers your whole calendar, not just what's on
-  screen, and skips calendars you've hidden. A recurring event shows its next
-  occurrence rather than the date the series first started.
-- A current-time line in the day and week views. A thin coloured line marks the
-  present moment across today's column, so you can see at a glance where you are
-  in the day. It updates every minute and only appears when today is in view.
-- Add and remove event guests. The create/edit form now has a Guests section:
-  add people by email or pick them from your contacts, mark each as required or
-  optional, and remove them. Calendula never sends invitations itself (it has no
-  internet access) — it only records the guests; if the event lives on a synced
-  account, that account may email them when it syncs, and on a local calendar no
-  one is notified. The form tells you which applies. Picking a guest from
-  contacts needs no contacts permission.
-- Pick a location from your contacts. A contacts button beside the location
-  field drops a contact's address straight into an event — handy for a meeting
-  at someone's home or office. Like the guest picker, it needs no contacts
-  permission.
-- A "New event" Quick Settings tile. Add it to your quick settings to jump
-  straight into the new-event form from anywhere. Settings → New event has a
-  one-tap button to add the tile (Android 13+); on older versions you can add it
-  from the quick-settings editor.
-- Snooze and dismiss buttons on reminder notifications. Dismiss clears the
-  reminder; snooze hides it and brings it back after a delay you pick in
-  Settings → Notifications (5 to 60 minutes, default 10). Android's calendar
-  system won't re-post a reminder on its own, so Calendula schedules an exact
-  alarm to bring a snoozed one back on time.
-
-### Changed
-- Event details now show each guest's email beneath their name, instead of only
-  when no name is available.
-- Crash and problem reports now open on the project's public Codeberg tracker,
-  where anyone can register and file an issue. Nothing is sent automatically —
-  you still review the report and submit it yourself in the browser.
-
-## [2.7.5] — 2026-06-21
-
-### Changed
-- Further build cleanup for the official F-Droid repository: stopped embedding
-  AGP's dependency-metadata block in the APK, which F-Droid's reproducible-build
-  scanner rejects as an extra signing block. No functional or visible changes —
-  the same app as 2.7.4, just without that Play-oriented metadata blob.
-
-## [2.7.4] — 2026-06-21
-
-### Changed
-- Build cleanup that lets Calendula ship in the official F-Droid repository:
-  removed an unused Gradle toolchain-resolver plugin, which F-Droid's offline,
-  reproducible build process disallows. No functional or visible changes — this
-  is the same app as 2.7.3.
-
-## [2.7.3] — 2026-06-21
-
-### Fixed
-- Home-screen widgets no longer get stuck on a loading spinner in the published
-  (F-Droid) release build. They render via Android's background-work system, and
-  release optimisation (R8) was stripping a helper class it loads by name, so the
-  render job never ran. Added the missing keep rule — widgets now load normally.
-
-## [2.7.2] — 2026-06-21
-
-### Added
-- Crash reporting you control. If Calendula closes unexpectedly, it now captures
-  a technical report and, on the next launch, offers to send it as an issue on
-  the project's tracker. Nothing is uploaded automatically — the report stays on
-  your device until you choose to share it, it contains no personal data or
-  calendar content (only the app, Android and device versions plus the stack
-  trace), and you see the full text before sending. There's also a "Report a
-  problem" entry in Settings, and if the app ever fails to start repeatedly, a
-  minimal recovery screen still lets you send the report.
-
-## [2.7.1] — 2026-06-21
-
-### Fixed
-- Fixed the app crashing immediately on launch whenever calendar access hadn't
-  been granted yet (a fresh install, or after revoking the permission). The app
-  set up its live calendar-change listener before the permission screen could
-  appear, which newer Android versions reject outright — so the app died before
-  you could grant access. The listener now waits for the permission and attaches
-  itself the moment it's granted.
-
 ## [2.7.0] — 2026-06-18
 
 ### Added
@@ -1257,69 +488,3 @@ automatically, with zero telemetry and no internet permission.
 - Gitea release workflow: signed release APK + F-Droid metadata sync to Hetzner
 - F-Droid metadata stubs (DE + EN short/full descriptions)
 - `.planning/` project-tracking documents
-
-[#1]: https://codeberg.org/jlmakiola/calendula/issues/1
-[#2]: https://codeberg.org/jlmakiola/calendula/issues/2
-[#3]: https://codeberg.org/jlmakiola/calendula/issues/3
-[#4]: https://codeberg.org/jlmakiola/calendula/issues/4
-[#5]: https://codeberg.org/jlmakiola/calendula/issues/5
-[#6]: https://codeberg.org/jlmakiola/calendula/issues/6
-[#7]: https://codeberg.org/jlmakiola/calendula/issues/7
-[#8]: https://codeberg.org/jlmakiola/calendula/issues/8
-[#9]: https://codeberg.org/jlmakiola/calendula/issues/9
-[#10]: https://codeberg.org/jlmakiola/calendula/issues/10
-[#12]: https://codeberg.org/jlmakiola/calendula/issues/12
-[#13]: https://codeberg.org/jlmakiola/calendula/issues/13
-[#14]: https://codeberg.org/jlmakiola/calendula/issues/14
-[#15]: https://codeberg.org/jlmakiola/calendula/issues/15
-[#16]: https://codeberg.org/jlmakiola/calendula/issues/16
-[#17]: https://codeberg.org/jlmakiola/calendula/issues/17
-[#18]: https://codeberg.org/jlmakiola/calendula/issues/18
-[#19]: https://codeberg.org/jlmakiola/calendula/issues/19
-[#20]: https://codeberg.org/jlmakiola/calendula/issues/20
-[#22]: https://codeberg.org/jlmakiola/calendula/issues/22
-[#24]: https://codeberg.org/jlmakiola/calendula/issues/24
-[#25]: https://codeberg.org/jlmakiola/calendula/issues/25
-[#27]: https://codeberg.org/jlmakiola/calendula/issues/27
-[#29]: https://codeberg.org/jlmakiola/calendula/issues/29
-[#21]: https://codeberg.org/jlmakiola/calendula/issues/21
-[#30]: https://codeberg.org/jlmakiola/calendula/issues/30
-[#31]: https://codeberg.org/jlmakiola/calendula/issues/31
-[#32]: https://codeberg.org/jlmakiola/calendula/issues/32
-[#33]: https://codeberg.org/jlmakiola/calendula/issues/33
-[#34]: https://codeberg.org/jlmakiola/calendula/issues/34
-[#36]: https://codeberg.org/jlmakiola/calendula/issues/36
-[#37]: https://codeberg.org/jlmakiola/calendula/issues/37
-[#39]: https://codeberg.org/jlmakiola/calendula/issues/39
-[#35]: https://codeberg.org/jlmakiola/calendula/issues/35
-[#40]: https://codeberg.org/jlmakiola/calendula/issues/40
-[#46]: https://codeberg.org/jlmakiola/calendula/issues/46
-[#47]: https://codeberg.org/jlmakiola/calendula/issues/47
-[#48]: https://codeberg.org/jlmakiola/calendula/issues/48
-[#49]: https://codeberg.org/jlmakiola/calendula/issues/49
-[#51]: https://codeberg.org/jlmakiola/calendula/issues/51
-[#52]: https://codeberg.org/jlmakiola/calendula/issues/52
-[#38]: https://codeberg.org/jlmakiola/calendula/issues/38
-[#53]: https://codeberg.org/jlmakiola/calendula/issues/53
-[#60]: https://codeberg.org/jlmakiola/calendula/issues/60
-[#65]: https://codeberg.org/jlmakiola/calendula/issues/65
-[#74]: https://codeberg.org/jlmakiola/calendula/issues/74
-[#42]: https://codeberg.org/jlmakiola/calendula/issues/42
-[#44]: https://codeberg.org/jlmakiola/calendula/issues/44
-[#70]: https://codeberg.org/jlmakiola/calendula/issues/70
-[#75]: https://codeberg.org/jlmakiola/calendula/issues/75
-[#76]: https://codeberg.org/jlmakiola/calendula/issues/76
-[#78]: https://codeberg.org/jlmakiola/calendula/issues/78
-[#77]: https://codeberg.org/jlmakiola/calendula/issues/77
-[#79]: https://codeberg.org/jlmakiola/calendula/issues/79
-[#81]: https://codeberg.org/jlmakiola/calendula/issues/81
-[#82]: https://codeberg.org/jlmakiola/calendula/issues/82
-[#83]: https://codeberg.org/jlmakiola/calendula/issues/83
-[#87]: https://codeberg.org/jlmakiola/calendula/issues/87
-[#89]: https://codeberg.org/jlmakiola/calendula/issues/89
-[#103]: https://codeberg.org/jlmakiola/calendula/issues/103
-[#69]: https://codeberg.org/jlmakiola/calendula/issues/69
-[#54]: https://codeberg.org/jlmakiola/calendula/issues/54
-[#57]: https://codeberg.org/jlmakiola/calendula/issues/57
-[#56]: https://codeberg.org/jlmakiola/calendula/issues/56
-[#114]: https://codeberg.org/jlmakiola/calendula/issues/114

CONTRIBUTING.md

@@ -1,184 +0,0 @@
-# Contributing to Calendula
-
-Calendula is a Material 3 Expressive calendar app that lives strictly on top of
-Android's `CalendarContract` — no app database, no sync stack, no network access.
-That constraint shapes most review comments, so
-[`docs/ARCHITECTURE.md`](docs/ARCHITECTURE.md) is worth skimming before you write
-code. This file is the practical how.
-
-**[Codeberg](https://codeberg.org/jlmakiola/calendula) is the canonical home** —
-issues, pull requests, releases. The self-hosted Gitea instance referenced in the
-release docs is build infrastructure only; there is nothing to contribute there.
-Be decent to the people you meet in the tracker.
-
-## Start with an issue
-
-| You want to | Do this |
-|---|---|
-| Add a feature | **Open an issue first** and wait for a go-ahead |
-| Fix a bug | Open an issue, then a pull request |
-| Fix a typo, a comment, or docs | Just open the pull request |
-| Add or fix a translation | **Don't** — [use Weblate](#translations) |
-
-Features get an opinion before they get code: whether Calendula should do a
-thing at all is the one decision a patch can't make. A feature PR that arrives
-without a discussed issue may be closed unmerged even when the code is good —
-please don't spend a weekend on one first.
-
-Bugs are more straightforward, but still start with an issue: it's what carries
-the milestone and gives the changelog something to link.
-
-Issue templates cover bug, crash, feature and question. For a crash, let the app
-do the work — **Settings → Report a problem**, or the prompt shown after a crash,
-captures the stack trace and prefills the form. The report contains app, Android
-and device versions plus the trace; no calendar content, no personal data.
-
-## Which branch to target
-
-Calendula releases by merging a version bump into `main`, so `main` is a release
-trigger rather than a staging area. Work is assembled on release branches first.
-
-Once your issue has a milestone, that milestone names your branch:
-
-| Milestone | Target branch |
-|---|---|
-| `2.18.0` | `release/v2.18.0` |
-
-Every milestone has a matching branch. If it's somehow missing, target `main` and
-mention it in the PR — it will be retargeted. Don't pick an older release branch:
-they're kept after shipping, so the newest one isn't necessarily yours.
-
-## Translations
-
-**Never edit a `values-*/strings.xml` file in a pull request** — German included.
-Translations are owned by a self-hosted Weblate that writes to this repository
-directly, and a hand-edit is overwritten on the next sync.
-
-→ **[Translate Calendula on Weblate](https://weblate.dev.jeanlucmakiola.de/engage/calendula/)**
-
-Adding a *new* English string to `values/strings.xml` is normal PR work; Weblate
-picks it up and offers it to translators. Partial translations are expected and
-fine — missing keys are informational. Stale and orphaned keys are not, so run
-
-```sh
-python3 scripts/check_translations.py
-```
-
-before pushing. It reports those more clearly than lint's `MissingTranslation`
-does.
-
-## Build & test
-
-```sh
-git clone --recurse-submodules https://codeberg.org/jlmakiola/calendula.git
-```
-
-The `floret-kit` submodule is a composite build compiled from source. An
-existing clone needs `git submodule update --init --recursive`, or nothing
-resolves.
-
-- **JDK 17** — not newer; the Android Gradle Plugin requires exactly 17. Set
-  `JAVA_HOME` if your default differs.
-- **Android SDK** — platform 37 (`compileSdk`) and build-tools 36.0.0, located
-  via `ANDROID_HOME` or a gitignored `local.properties` with `sdk.dir`. If you
-  go the `local.properties` route the included build needs its own copy at
-  `floret-kit/local.properties`; `ANDROID_HOME` covers both at once and is the
-  easier path.
-
-The Gradle wrapper is checked in, so no system Gradle is needed.
-
-```sh
-./gradlew lint test assembleDebug     # roughly what CI runs
-```
-
-A single test class, or a pattern:
-
-```sh
-./gradlew testDebugUnitTest --tests "de.jeanlucmakiola.calendula.domain.SimpleRecurrenceTest"
-./gradlew testDebugUnitTest --tests "*SimpleRecurrence*"
-```
-
-CI reports one `CI` check per pull request: `lintDebug`, `testDebugUnitTest`,
-`assembleDebug`, and a Trivy scan. Pull requests touching only docs, F-Droid
-metadata or the licence skip the Android build and go green quickly. More detail
-in [`docs/BUILDING.md`](docs/BUILDING.md).
-
-## The rules
-
-These are the ones that turn into review comments.
-
-1. **No network.** Calendula holds no `INTERNET` permission, and that's a
-   feature rather than an oversight. Anything that would need one is a product
-   decision before it's a patch — the crash reporter deliberately opens a
-   prefilled web issue instead of posting anything itself.
-2. **The provider is the only database.** No Room, no cache, no local mirror of
-   events. `CalendarContract` is the single source of truth, which is also why
-   externally synced changes work for free.
-3. **Don't patch UI state after a write.** A `ContentObserver` re-queries and
-   views recompose from fresh provider state. Hand-patching a list after saving
-   appears to work, then quietly diverges from what the provider actually stored.
-4. **`domain/` has no Android imports.** Models, validation, recurrence
-   rendering, conflict snapshots and the `.ics` codec stay pure Kotlin so they
-   remain JVM-testable.
-5. **Tests run on the JVM.** JUnit 5 + Truth + Turbine. The seams exist for you:
-   fake the data source (`FakeCalendarDataSource`), and feed mappers plain maps
-   through `ColumnReader` instead of cursors. Instrumented tests are a last
-   resort, not a default.
-6. **Read before touching the subtle pipelines.** Recurring writes (UNTIL vs
-   DURATION, exception URIs, series splits), save-conflict detection and reminder
-   delivery (post-before-mark) follow provider-driven rules that are documented
-   in [`docs/ARCHITECTURE.md`](docs/ARCHITECTURE.md) and are not guessable from
-   the code alone.
-7. **Don't break reproducible builds.** `vcsInfo`, `dependenciesInfo` and the AGP
-   metadata block are disabled on purpose so the official F-Droid repo can verify
-   our binary against a from-source rebuild.
-   `scripts/check_reproducible_release.sh` runs on every pull request, including
-   docs-only ones.
-
-## UI conventions
-
-Material 3 Expressive throughout, built from the system's own tokens and
-components — colour-scheme tokens rather than hardcoded colours, `ListItem` for
-settings rows.
-
-**Selection pickers are full-screen.** Every browse-style "choose one" surface
-uses floret-kit's `FullScreenPicker` / `OptionPicker`; one that needs a commit or
-extra action passes it through the picker's `actions` slot. The exception is the
-recurring-scope chooser (*this / this and following / all*), which stays a
-compact dialog — a two- or three-option decision reads better as a popup than as
-a nearly empty screen. `AlertDialog` is for plain confirmations only, and radio-
-or text-list dialogs aren't used at all.
-
-Shared UI machinery lives in the `floret-kit` submodule and has
-[its own contributing guide](https://codeberg.org/jlmakiola/floret-kit/src/branch/main/CONTRIBUTING.md);
-changing it means a pull request against that repository plus a submodule bump
-here.
-
-## Commits & pull requests
-
-Conventional commits, scoped to the area you touched:
-
-```
-fix(calendars): keep an event's own calendar when it is switched off
-feat(month): pull-to-expand the split view (#38)
-docs(architecture): record what the second review pass changed
-```
-
-Types in use: `feat` `fix` `docs` `refactor` `style` `chore` `ci` `build`
-`revert`. Reference the issue in the subject or the body. Keep commits small —
-small commits revert cleanly, which matters more here than a tidy history.
-
-If your change is user-visible, add an entry under `## [Unreleased]` in
-[`CHANGELOG.md`](CHANGELOG.md). Match the surrounding voice: entries describe
-what changed *for the person using the app*, and why, not what changed in the
-code. Link the issue and add its reference at the bottom of the file. It may get
-reworded when the release is cut, so don't agonise over it.
-
-Please don't commit planning or design documents. Code, tests, architecture notes
-and the changelog land; the reasoning belongs in the commit message and the
-issue.
-
-## Licence
-
-Calendula is [MIT](LICENSE). By contributing you agree your changes ship under
-the same licence.

Gemfile

@@ -1,10 +0,0 @@
-source "https://rubygems.org"
-
-# fastlane is used ONLY to upload the release bundle to Google Play
-# (see fastlane/Fastfile). It is not part of the build or the signing path, so
-# it never runs on a PR — only in release.yaml's `play` job.
-#
-# Pinned exactly; Renovate's bundler manager keeps it bumped. No Gemfile.lock is
-# committed on purpose: this resolves an uploader's transitive deps, not the
-# app's, and none of it affects the reproducible release build.
-gem "fastlane", "2.237.0"

README.md

@@ -1,6 +1,6 @@
 <div align="center">
 
-<img src="fastlane/metadata/android/en-US/images/icon.png" width="112" alt="Calendula icon">
+<img src="fdroid-metadata/de.jeanlucmakiola.calendula/en-US/icon.png" width="112" alt="Calendula icon">
 
 <h1>Calendula</h1>
 
@@ -8,7 +8,7 @@
 Reads, writes, and reminds — on top of the system calendar, with zero network access.</p>
 
 <p>
-<a href="https://codeberg.org/jlmakiola/calendula/actions"><img src="https://codeberg.org/jlmakiola/calendula/actions/workflows/ci.yaml/badge.svg?branch=main" alt="CI"></a>
+<a href="https://gitea.jeanlucmakiola.de/makiolaj/calendula/actions"><img src="https://gitea.jeanlucmakiola.de/makiolaj/calendula/actions/workflows/ci.yaml/badge.svg?branch=main" alt="CI"></a>
 <img src="https://img.shields.io/badge/Android-10%2B-3DDC84?logo=android&logoColor=white" alt="Android 10+">
 <img src="https://img.shields.io/badge/Kotlin-Compose-7F52FF?logo=kotlin&logoColor=white" alt="Kotlin + Compose">
 <img src="https://img.shields.io/badge/Material%203-Expressive-4285F4" alt="Material 3 Expressive">
@@ -16,20 +16,11 @@ Reads, writes, and reminds — on top of the system calendar, with zero network
 </p>
 
 <p>
-<a href="https://f-droid.org/packages/de.jeanlucmakiola.calendula/"><img src="https://fdroid.gitlab.io/artwork/badge/get-it-on.png" alt="Get it on F-Droid" height="56"></a>
-&nbsp;
-<a href="https://apps.obtainium.imranr.dev/redirect?r=obtainium://add/https://codeberg.org/jlmakiola/calendula"><img src="https://github.com/ImranR98/Obtainium/blob/main/assets/graphics/badge_obtainium.png?raw=true" alt="Get it on Obtainium" height="56"></a>
-&nbsp;
-<a href="https://ko-fi.com/jeanlucmakiola"><img src="https://storage.ko-fi.com/cdn/brandasset/v2/support_me_on_kofi_badge_beige.png" alt="Support me on Ko-fi" height="56"></a>
-</p>
-
-<p>
-<img src="fastlane/metadata/android/en-US/images/phoneScreenshots/01-week.png" width="16%" alt="Week view">&nbsp;
-<img src="fastlane/metadata/android/en-US/images/phoneScreenshots/02-month.png" width="16%" alt="Month view">&nbsp;
-<img src="fastlane/metadata/android/en-US/images/phoneScreenshots/03-day.png" width="16%" alt="Day view">&nbsp;
-<img src="fastlane/metadata/android/en-US/images/phoneScreenshots/04-detail.png" width="16%" alt="Event detail">&nbsp;
-<img src="fastlane/metadata/android/en-US/images/phoneScreenshots/05-agenda.png" width="16%" alt="Agenda view">&nbsp;
-<img src="fastlane/metadata/android/en-US/images/phoneScreenshots/06-onboarding.png" width="16%" alt="Reminder onboarding">
+<img src="fdroid-metadata/de.jeanlucmakiola.calendula/en-US/phoneScreenshots/01-week.png" width="19%" alt="Week view">&nbsp;
+<img src="fdroid-metadata/de.jeanlucmakiola.calendula/en-US/phoneScreenshots/02-month.png" width="19%" alt="Month view">&nbsp;
+<img src="fdroid-metadata/de.jeanlucmakiola.calendula/en-US/phoneScreenshots/04-detail.png" width="19%" alt="Event detail">&nbsp;
+<img src="fdroid-metadata/de.jeanlucmakiola.calendula/en-US/phoneScreenshots/05-edit.png" width="19%" alt="Event form">&nbsp;
+<img src="fdroid-metadata/de.jeanlucmakiola.calendula/en-US/phoneScreenshots/06-onboarding.png" width="19%" alt="Reminder onboarding">
 </p>
 
 </div>
@@ -71,41 +62,19 @@ database, no sync stack reinvented.
 
 - Real Material 3 Expressive throughout — dynamic color (Android 12+),
   expressive motion and shapes, light/dark theme
-- English and German UI plus community translations (Spanish, French, Italian,
-  Polish, and more in progress), per-app language setting — and [open to more
-  languages](#-translations)
+- German and English UI, per-app language setting
 - **Zero telemetry, zero analytics, no internet permission** — your data
   never leaves the device
 
 ## 📦 Install
 
-Pick whichever channel you already use — they all install the same app:
+Calendula ships through a self-hosted F-Droid repository; every version tag
+is built, signed, and published there automatically.
 
-| Channel | Updates | Notes |
-| --- | --- | --- |
-| [Official F-Droid](#f-droid-recommended) | On F-Droid's build schedule | Recommended; no extra setup |
-| [Self-hosted F-Droid repo](#self-hosted-f-droid-repo-fastest-updates) | Minutes after a release | Fastest; needs the repo added once |
-| [Codeberg release / Obtainium](#codeberg-release--obtainium) | Per release | Plain APK download, or automated by Obtainium |
-| [Google Play](#google-play-coming-soon) | — | Coming soon |
-| [Build from source](#build-from-source) | Whenever you build | Full control |
-
-### F-Droid (recommended)
-
-Calendula is on the **official [F-Droid](https://f-droid.org) repository** —
-just search for **Calendula** in any F-Droid client, or
-[install it from f-droid.org](https://f-droid.org/packages/de.jeanlucmakiola.calendula/).
-
-F-Droid rebuilds from source on its own schedule, so a new version usually
-shows up there a few days after release.
-
-### Self-hosted F-Droid repo (fastest updates)
-
-Every release is built, signed, and published to a self-hosted F-Droid
-repository as part of the release pipeline, so it lands there first. Add it once
-and your F-Droid client handles updates from then on:
-
-1. In your F-Droid client, open *Settings → Repositories → Add* (or open the
-   link below on your phone):
+1. Install an F-Droid client ([F-Droid](https://f-droid.org), Droid-ify, Neo
+   Store, …).
+2. Add the repository — open this link on your phone, or paste it under
+   *Settings → Repositories → Add*:
 
    ```
    https://apps.dev.jeanlucmakiola.de/dev/fdroid/repo?fingerprint=C2C0640402BF458FC0ED957AF0B37AA4C14022E72F89CE90B5965B458CF73425
@@ -115,79 +84,36 @@ and your F-Droid client handles updates from then on:
    fingerprint (SHA-256):
    `C2C0 6404 02BF 458F C0ED 957A F0B3 7AA4 C140 22E7 2F89 CE90 B596 5B45 8CF7 3425`</sub>
 
-2. Refresh, search for **Calendula**, install.
+3. Refresh, search for **Calendula**, install. Updates arrive like any
+   other F-Droid app.
 
-### Codeberg release / Obtainium
+Alternatively, build from source — see below.
 
-If you'd rather not use F-Droid at all, every release is also published on
-**[Codeberg](https://codeberg.org/jlmakiola/calendula/releases)** with the
-signed APK (`calendula_vX.Y.Z.apk`) and a `.sha256` checksum attached — download
-and install it directly.
+## 🛠 Building
 
-For automatic updates from that channel, use
-**[Obtainium](https://github.com/ImranR98/Obtainium)** — on the phone,
-**[add Calendula in one tap](https://apps.obtainium.imranr.dev/redirect?r=obtainium://add/https://codeberg.org/jlmakiola/calendula)**,
-or do it by hand: *Add App* → paste `https://codeberg.org/jlmakiola/calendula`
-→ *Add*. Either way, Obtainium tracks the releases and prompts you when a new
-one appears.
+Requires Android SDK 36+ and JDK 17. The Gradle wrapper is checked in:
 
-### Google Play (coming soon)
+```bash
+./gradlew assembleDebug   # debug APK
+./gradlew test            # JVM unit tests
+./gradlew lint            # Android lint
+```
 
-Calendula is on its way to Google Play as an additional channel. It isn't live
-yet — this section gets a link once it is. Play builds will be signed with
-Google's key rather than mine, so switching between Play and any other channel
-will require an uninstall.
+If your default JDK is not 17, set `JAVA_HOME` explicitly.
 
-> **Testers wanted.** Play requires a round of closed testing before the app can
-> go public, and I'm still looking for testers. If you'd like to help, email
-> **[business@jeanlucmakiola.de](mailto:business@jeanlucmakiola.de)** with the
-> Google account address you want to use — that address is what I need to add you
-> to the closed test.
+## 🏗 Architecture
 
-### Build from source
+Single-activity Compose app, layered `UI → Repository → DataSource →
+CalendarContract`, observer-driven refresh, JVM-first tests. The full tour —
+including the recurring-write and reminder pipelines — lives in
+[docs/ARCHITECTURE.md](docs/ARCHITECTURE.md).
 
-The build is a plain Gradle build with no proprietary dependencies — see
-**[docs/BUILDING.md](docs/BUILDING.md)** (note the `floret-kit` submodule).
+## 🗺 Roadmap
 
-<sub>Official F-Droid, the self-hosted repo, and the Codeberg releases all share
-the same signing key, so you can switch freely between them without
-reinstalling.</sub>
-
-## 📚 Documentation
-
-- **[Contributing](CONTRIBUTING.md)** — how to report, propose, and patch
-- **[Building from source](docs/BUILDING.md)** — requirements and Gradle tasks
-- **[Architecture](docs/ARCHITECTURE.md)** — the layered design and key pipelines
-- **[Milestones](https://codeberg.org/jlmakiola/calendula/milestones)** — what's shipped and what's next
-
-## 🤝 Contributing
-
-Bug reports, ideas, and patches are all welcome on
-**[Codeberg](https://codeberg.org/jlmakiola/calendula/issues)**.
-
-The short version: **start with an issue.** Features get a yes-or-no before they
-get code, and both features and bugs are assigned a milestone whose
-`release/vX.Y.Z` branch your pull request then targets. Typo and docs fixes can
-skip straight to a pull request. Translations don't go through pull requests at
-all — [Weblate owns them](#-translations).
-
-Read **[CONTRIBUTING.md](CONTRIBUTING.md)** before writing code: it covers the
-workflow, the build (note the `floret-kit` submodule), and the architectural
-rules a change is reviewed against.
-
-## 🌍 Translations
-
-Calendula ships in English and German, with community translations in Arabic,
-Chinese, French, Italian, Polish, Portuguese, Russian, and Spanish at varying
-degrees of completeness — partial is fine, untranslated strings simply fall back
-to English. You're warmly invited to add or finish your language. Translations
-are managed on a self-hosted **Weblate**:
-
-**→ [Help translate Calendula](https://weblate.dev.jeanlucmakiola.de/engage/calendula/)**
-
-No coding needed — register on the Weblate server, pick (or request) a language,
-and translate the strings in your browser. You can also reach this link in the
-app from the top of **Settings → App language**.
+Shipped: read (v1.0), write (v1.1–v2.0), reminder delivery (v1.4).
+Next up: power-user features — widget, search, tablet layouts. The living
+roadmap is in [.planning/ROADMAP.md](.planning/ROADMAP.md), the release
+history in [CHANGELOG.md](CHANGELOG.md).
 
 ## 📜 License
 

app/build.gradle.kts

@@ -23,13 +23,13 @@ android {
         applicationId = "de.jeanlucmakiola.calendula"
         minSdk = 29
         targetSdk = 36
-        // These committed values ARE the source of truth for a release: merging
-        // a bumped versionName into main triggers .gitea/workflows/release.yaml,
-        // which builds this version and then creates the matching vX.Y.Z tag +
-        // release itself (versionCode is pinned to MAJOR*10000 + MINOR*100 +
-        // PATCH from versionName, e.g. 2.7.2 -> 20702). See docs/RELEASING.md.
-        versionCode = 21800
-        versionName = "2.18.0"
+        // The git tag is the single source of truth for released builds: at
+        // release time .gitea/workflows/release.yaml derives both fields from
+        // the tag, with versionCode = MAJOR*10000 + MINOR*100 + PATCH
+        // (e.g. v2.0.0 -> 20000). These committed values are the dev/local
+        // default; keep them matching the latest released tag. See docs/RELEASING.md.
+        versionCode = 20700
+        versionName = "2.7.0"
 
         testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
     }
@@ -47,11 +47,6 @@ android {
 
     buildTypes {
         release {
-            // Keep release builds reproducible for F-Droid: don't let AGP embed
-            // build-environment git metadata (META-INF/version-control-info.textproto),
-            // whose `revision`/path content varies by build machine and is the only
-            // thing that otherwise differs from a clean from-source rebuild.
-            vcsInfo { include = false }
             isMinifyEnabled = true
             isShrinkResources = true
             proguardFiles(
@@ -66,21 +61,6 @@ android {
             applicationIdSuffix = ".debug"
             isMinifyEnabled = false
         }
-        // A locally-installable twin of `release`: same R8 shrinking + obfuscation
-        // and resource shrinking, but debug-signed and given its own applicationId
-        // suffix so it installs alongside both the production app (signed with the
-        // real key) and the debug build. Used to smoke-test a release candidate on
-        // a real device before tagging — R8-only breakage and first-run/permission
-        // states don't surface in the unminified debug build, nor on a device that
-        // already holds the permission. Never published. See docs/RELEASING.md.
-        create("releaseTest") {
-            initWith(getByName("release"))
-            applicationIdSuffix = ".releasetest"
-            signingConfig = signingConfigs.getByName("debug")
-            isMinifyEnabled = true
-            isShrinkResources = true
-            matchingFallbacks += "release"
-        }
     }
 
     compileOptions {
@@ -90,18 +70,6 @@ android {
 
     buildFeatures {
         compose = true
-        // BuildConfig.DEBUG gates the in-app debug ribbon (see DebugRibbon).
-        buildConfig = true
-    }
-
-    // Don't embed AGP's dependency-metadata block in the APK signing block. It's
-    // a Play-oriented blob, and F-Droid's reproducible-build scanner rejects any
-    // "extra signing block" — so leaving it in blocks publishing to the official
-    // repo. It lives in the signing block, not the zip entries, so disabling it
-    // doesn't change the build output (reproducibility is unaffected).
-    dependenciesInfo {
-        includeInApk = false
-        includeInBundle = false
     }
 
     packaging {
@@ -113,13 +81,10 @@ android {
     lint {
         // Community translations are expected to be partial — a missing string
         // falls back to the English base at runtime — so don't fail the build on
-        // it. Likewise a translated <plurals> may not fill every CLDR quantity
-        // form its locale defines (e.g. Arabic needs "zero"); the missing form
-        // falls back to "other" at runtime, so MissingQuantity is informational
-        // too. Stale/extra keys (ExtraTranslation) stay fatal; scripts/
+        // it. Stale/extra keys (ExtraTranslation) stay fatal; scripts/
         // check_translations.py guards the same invariants with clearer,
         // translator-facing messages.
-        informational += listOf("MissingTranslation", "MissingQuantity")
+        informational += "MissingTranslation"
     }
 
     testOptions {
@@ -157,19 +122,10 @@ dependencies {
 
     implementation(libs.androidx.datastore.preferences)
 
-    implementation(libs.androidx.work.runtime.ktx)
-    implementation(libs.androidx.documentfile)
-
     implementation(libs.androidx.glance.appwidget)
     implementation(libs.androidx.glance.material3)
 
     implementation(libs.kotlinx.datetime)
-    implementation("de.jeanlucmakiola.floret:core-time")
-    implementation("de.jeanlucmakiola.floret:core-locale")
-    implementation("de.jeanlucmakiola.floret:core-crash")
-    implementation("de.jeanlucmakiola.floret:core-reminders")
-    implementation("de.jeanlucmakiola.floret:identity")
-    implementation("de.jeanlucmakiola.floret:components")
     implementation(libs.kotlinx.coroutines.core)
 
     debugImplementation(libs.androidx.ui.tooling)

app/proguard-rules.pro

@@ -15,38 +15,3 @@
 # Keep the generated Room database implementations fully intact.
 -keep class * extends androidx.room.RoomDatabase { *; }
 -dontwarn androidx.room.paging.**
-
-# Glance runs an @Composable's `actionRunCallback<T>()` by persisting the
-# callback's fully-qualified class name into the click PendingIntent, then
-# reflectively instantiating it (Class.forName(name).newInstance()) when the tap
-# fires. Under R8 full mode (AGP 9 default) these ActionCallback classes — only
-# ever referenced reflectively — get renamed or have their no-arg constructor
-# stripped, so the lookup fails silently and the tap does nothing. In the month
-# and agenda widgets that broke every run-callback control (the prev/next/today
-# month arrows and the agenda refresh) in release builds while actionStartActivity
-# taps, which ride a PendingIntent and need no reflection, kept working. Keep
-# every ActionCallback's name and constructor intact.
--keep class * implements androidx.glance.appwidget.action.ActionCallback { <init>(...); }
-
-# WorkManager instantiates an InputMerger reflectively (Class.newInstance) from
-# the fully-qualified class name persisted in the WorkSpec, so the class must
-# keep both its name and a no-arg constructor. Glance renders every widget
-# through a WorkManager worker (androidx.glance.session.SessionWorker) whose
-# default merger is androidx.work.OverwritingInputMerger. Under R8 full mode
-# (AGP 9 default) that unused no-arg constructor was stripped, so WorkManager
-# threw "OverwritingInputMerger has no zero argument constructor", the
-# SessionWorker never ran, and widgets were stuck on their loading layout
-# (a blank spinner) in release builds. Keep every InputMerger's name + ctor.
--keep class * extends androidx.work.InputMerger { <init>(...); }
-
-# Glance identifies a widget by its GlanceAppWidget subclass's *canonical name*:
-# GlanceAppWidgetManager persists a providerName -> receivers map under that
-# string, and `updateAll` looks the widget's app-widget ids up through it. Under
-# R8 full mode (AGP 9 default) MonthWidget and AgendaWidget — same supertype,
-# same overrides, no distinguishing members — were horizontally merged into one
-# class, so both receivers registered under the *same* provider name and
-# `AgendaWidget().updateAll()` resolved the month widget's id too, redrawing a
-# placed month widget as the agenda one on the next data change (#89). Keeping
-# the real names also survives app updates, which would otherwise renumber the
-# obfuscated name and orphan the stored mapping.
--keep class * extends androidx.glance.appwidget.GlanceAppWidget

app/src/androidTest/java/de/jeanlucmakiola/calendula/data/calendar/CalendarRepositorySmokeTest.kt

@@ -9,7 +9,6 @@ import androidx.test.platform.app.InstrumentationRegistry
 import androidx.test.rule.GrantPermissionRule
 import com.google.common.truth.Truth.assertThat
 import de.jeanlucmakiola.calendula.data.prefs.CalendarPrefs
-import de.jeanlucmakiola.calendula.data.prefs.SettingsPrefs
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.flow.first
 import kotlinx.coroutines.runBlocking
@@ -32,12 +31,7 @@ class CalendarRepositorySmokeTest {
         val store: DataStore<Preferences> = PreferenceDataStoreFactory.create(
             produceFile = { context.cacheDir.resolve("smoke_test_prefs.preferences_pb") },
         )
-        return CalendarRepositoryImpl(
-            dataSource,
-            CalendarPrefs(store),
-            SettingsPrefs(store),
-            Dispatchers.IO,
-        )
+        return CalendarRepositoryImpl(dataSource, CalendarPrefs(store), Dispatchers.IO)
     }
 
     @Test

app/src/debug/res/values/colors.xml

@@ -1,10 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
-    Debug-only launcher-icon background. Production is slate (#5C6B7A); the
-    debug build paints the adaptive-icon background burnt orange instead, so the
-    debug icon reads at a glance as "not the real app" on the home screen. The
-    off-white foreground mark contrasts on both. See drawable/ic_launcher_background.
--->
-<resources>
-    <color name="ic_launcher_background">#FFB23B00</color>
-</resources>

app/src/debug/res/values/strings.xml

@@ -1,10 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
-    Debug-build resource overrides. Merged on top of src/main for the `debug`
-    build type only (release/releaseTest keep the production values), so the
-    debug app is unmistakable on the launcher: its own label, alongside the
-    real app thanks to the `.debug` applicationId suffix.
--->
-<resources>
-    <string name="app_name">Calendula Debug</string>
-</resources>

app/src/main/AndroidManifest.xml

@@ -5,15 +5,6 @@
     <uses-permission android:name="android.permission.READ_CALENDAR" />
     <uses-permission android:name="android.permission.WRITE_CALENDAR" />
     <uses-permission android:name="android.permission.POST_NOTIFICATIONS" />
-    <!--
-      Optional and feature-gated: only the "Contact special dates" feature reads
-      contacts, and only after the user enables it and grants this at runtime
-      (never requested at startup). Everything stays offline — birthdays and
-      other contact dates are mirrored one-way into local calendars; contacts
-      are never written and nothing leaves the device (the app has no INTERNET
-      permission). See docs/design/contact-special-dates.md.
-    -->
-    <uses-permission android:name="android.permission.READ_CONTACTS" />
     <!--
       Lets the "Reliable delivery" setting open the direct system dialog to
       exempt Calendula from battery optimisation (so reminder broadcasts aren't
@@ -22,25 +13,6 @@
     -->
     <uses-permission android:name="android.permission.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS" />
 
-    <!--
-      Re-fire a snoozed reminder at an exact time (the calendar provider won't —
-      its alert is already fired). USE_EXACT_ALARM is auto-granted to calendar
-      apps on API 33+; SCHEDULE_EXACT_ALARM covers API 31–32 (user-revocable,
-      with an inexact fallback if withheld). F-Droid-clean: no Play allowlisting.
-    -->
-    <uses-permission
-        android:name="android.permission.SCHEDULE_EXACT_ALARM"
-        android:maxSdkVersion="32" />
-    <uses-permission android:name="android.permission.USE_EXACT_ALARM" />
-
-    <!--
-      A reboot clears every pending alarm, including the one holding the next
-      reminder. Now that the app schedules that alarm itself (#75) rather than
-      leaning on the provider's, it has to hear about the reboot to re-arm it —
-      otherwise reminders simply stop after a restart.
-    -->
-    <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
-
     <!-- Package visibility (Android 11+): without this, getLaunchIntentForPackage
          returns null and the calendar manager's per-account "manage" button can't
          open the source sync app (DAVx5, ICSx5, Google Calendar, …). The LAUNCHER
@@ -56,7 +28,6 @@
     <application
         android:name=".CalendulaApp"
         android:allowBackup="true"
-        android:enableOnBackInvokedCallback="true"
         android:dataExtractionRules="@xml/data_extraction_rules"
         android:fullBackupContent="@xml/backup_rules"
         android:icon="@mipmap/ic_launcher"
@@ -71,239 +42,46 @@
             android:exported="true"
             android:launchMode="singleTop"
             android:windowSoftInputMode="adjustResize">
-            <!-- The MAIN/LAUNCHER entry (the launcher icon + its label) lives on
-                 the two <activity-alias> below, so the app name can be switched at
-                 runtime (issue #44). MainActivity keeps every other filter. -->
-
-            <!-- Be selectable as the system calendar app. Android has no API for
-                 an app to make itself the default, so registering the filters
-                 launchers and the OS use is what lets the user pick Calendula
-                 from the system chooser when a date action fires (issue #9).
-                 APP_CALENDAR is the "open the calendar app" action; the VIEW
-                 filters below catch a tapped date. -->
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
-                <category android:name="android.intent.category.DEFAULT" />
-                <category android:name="android.intent.category.APP_CALENDAR" />
-            </intent-filter>
-            <!-- A launcher/clock date tap fires ACTION_VIEW on the provider's
-                 time Uri (content://com.android.calendar/time/<epochMillis>);
-                 some surfaces use the time/epoch mime type. We open the day view
-                 on that date (MainActivity.calendarTimeDateOrNull). -->
-            <intent-filter>
-                <action android:name="android.intent.action.VIEW" />
-                <category android:name="android.intent.category.DEFAULT" />
-                <data
-                    android:scheme="content"
-                    android:host="com.android.calendar"
-                    android:pathPrefix="/time" />
-            </intent-filter>
-            <intent-filter>
-                <action android:name="android.intent.action.VIEW" />
-                <category android:name="android.intent.category.DEFAULT" />
-                <data android:mimeType="time/epoch" />
+                <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
 
-            <!-- Open a .ics/.vcs file (file manager / email attachment / browser).
-                 The three MIME types cover the common labels the same calendar
-                 data arrives under: iCalendar 2.0 (text/calendar), the older
-                 vCalendar 1.0 / .vcs (text/x-vcalendar), and application/ics some
-                 mail apps emit — Android cross-products the scheme and mimeType
-                 tags, so each MIME is accepted on both schemes (matches Etar). -->
+            <!-- Open a .ics file (file manager / email attachment / browser). -->
             <intent-filter>
                 <action android:name="android.intent.action.VIEW" />
                 <category android:name="android.intent.category.DEFAULT" />
                 <category android:name="android.intent.category.BROWSABLE" />
-                <data android:scheme="content" />
-                <data android:scheme="file" />
-                <data android:mimeType="text/calendar" />
-                <data android:mimeType="text/x-vcalendar" />
-                <data android:mimeType="application/ics" />
+                <data android:scheme="content" android:mimeType="text/calendar" />
+                <data android:scheme="file" android:mimeType="text/calendar" />
             </intent-filter>
-            <!-- Same .ics/.vcs data arriving mislabelled as a generic download —
-                 application/octet-stream — the way many mail clients, browsers and
-                 file managers hand off attachments. Matched by file extension, so
-                 this stays a separate filter: a pathPattern here must not narrow
-                 the MIME-typed VIEW filter above (that one has no path and must
-                 keep matching regardless of name). The import handler ignores the
-                 MIME type, so a let-through octet-stream .ics imports normally.
-                 Best-effort: pathPattern is reliable for file:// (and content://
-                 whose path carries the filename); content:// URIs that expose no
-                 name still fall back to the MIME-typed filter above. -->
-            <intent-filter>
-                <action android:name="android.intent.action.VIEW" />
-                <category android:name="android.intent.category.DEFAULT" />
-                <category android:name="android.intent.category.BROWSABLE" />
-                <data android:scheme="content" />
-                <data android:scheme="file" />
-                <data android:host="*" />
-                <data android:mimeType="application/octet-stream" />
-                <data android:pathPattern=".*\\.ics" />
-                <data android:pathPattern=".*\\.vcs" />
-            </intent-filter>
-
-            <!-- Receive a .ics/.vcs shared from another app (same MIME set). -->
+            <!-- Receive a .ics shared from another app. -->
             <intent-filter>
                 <action android:name="android.intent.action.SEND" />
                 <category android:name="android.intent.category.DEFAULT" />
                 <data android:mimeType="text/calendar" />
-                <data android:mimeType="text/x-vcalendar" />
-                <data android:mimeType="application/ics" />
-            </intent-filter>
-
-            <!-- Let another app or widget (e.g. the Todo Agenda widget) launch us
-                 to create a new event, the way the AOSP calendar accepts it:
-                 ACTION_INSERT on the events *dir* mime type, carrying the new
-                 event's fields as CalendarContract extras
-                 (MainActivity.insertFormOrNull, issue #30). ACTION_EDIT on the
-                 dir mime is AOSP's "edit a new event" — i.e. create — so it maps
-                 to the same prefilled create form. (The far more common *item*-
-                 typed INSERT — the form the Android docs' example and apps like
-                 DB Navigator use — is the item filter below, issue #74.) -->
-            <intent-filter>
-                <action android:name="android.intent.action.INSERT" />
-                <action android:name="android.intent.action.EDIT" />
-                <category android:name="android.intent.category.DEFAULT" />
-                <data android:mimeType="vnd.android.cursor.dir/event" />
-            </intent-filter>
-
-            <!-- Create or edit an event another app/assistant/widget points at,
-                 addressed by the provider's *item* MIME type. Three actions share
-                 this filter, told apart at runtime by the intent's data:
-
-                 • ACTION_INSERT — create. This is the form the Android docs'
-                   "insert an event" example and many apps use
-                   (setType("vnd.android.cursor.item/event")), e.g. DB Navigator's
-                   "Save to calendar". The dir-typed filter above alone missed it,
-                   so Calendula never showed in the chooser — and, when it was the
-                   only calendar app, the intent resolved to nothing (issue #74).
-                 • ACTION_INSERT_OR_EDIT — the third "add to calendar" action AOSP
-                   and Google Calendar register; a create, or an edit when it
-                   carries an event id.
-                 • ACTION_EDIT — edit the existing event at
-                   content://com.android.calendar/events/<id> (an id-less EDIT is a
-                   create). Opens the occurrence in the edit form, not the
-                   read-only detail — that's the VIEW filter above.
-
-                 Create fields ride as CalendarContract extras; an edit's
-                 occurrence times ride as EXTRA_EVENT_BEGIN_TIME /
-                 EXTRA_EVENT_END_TIME when supplied (MainActivity.insertFormOrNull
-                 / editEventKeyOrNull). -->
-            <intent-filter>
-                <action android:name="android.intent.action.INSERT" />
-                <action android:name="android.intent.action.INSERT_OR_EDIT" />
-                <action android:name="android.intent.action.EDIT" />
-                <category android:name="android.intent.category.DEFAULT" />
-                <data android:mimeType="vnd.android.cursor.item/event" />
-            </intent-filter>
-
-            <!-- Open an existing event another app/widget points at (e.g. tapping
-                 an event in the Todo Agenda widget): ACTION_VIEW on
-                 content://com.android.calendar/events/<id>, the way AOSP fires it.
-                 Matched by the provider's item MIME type, not the path — a
-                 content: VIEW intent carries the resolved type
-                 (vnd.android.cursor.item/event) and a path-only filter wouldn't
-                 match it. The occurrence's times ride as EXTRA_EVENT_BEGIN_TIME /
-                 EXTRA_EVENT_END_TIME when the launcher supplies them
-                 (MainActivity.viewEventKeyOrNull, issue #48). -->
-            <intent-filter>
-                <action android:name="android.intent.action.VIEW" />
-                <category android:name="android.intent.category.DEFAULT" />
-                <category android:name="android.intent.category.BROWSABLE" />
-                <data android:mimeType="vnd.android.cursor.item/event" />
             </intent-filter>
 
+            <!-- Launcher long-press shortcuts (e.g. "New event"). -->
+            <meta-data
+                android:name="android.app.shortcuts"
+                android:resource="@xml/shortcuts" />
         </activity>
 
-        <!-- Launcher entry for MainActivity, split into two aliases so the app's
-             launcher name can be switched at runtime between "Calendula" and
-             "Calendar" (issue #44). Exactly one is enabled at a time; the app
-             flips them via PackageManager.setComponentEnabledSetting
-             (LauncherNameManager). The shortcuts meta-data lives here, not on
-             MainActivity, because static shortcuts are published by whichever
-             component owns the MAIN/LAUNCHER filter. -->
-        <activity-alias
-            android:name=".DefaultNameAlias"
-            android:enabled="true"
-            android:exported="true"
-            android:icon="@mipmap/ic_launcher"
-            android:label="@string/app_name"
-            android:roundIcon="@mipmap/ic_launcher_round"
-            android:targetActivity=".MainActivity">
-            <intent-filter>
-                <action android:name="android.intent.action.MAIN" />
-                <category android:name="android.intent.category.LAUNCHER" />
-            </intent-filter>
-            <meta-data
-                android:name="android.app.shortcuts"
-                android:resource="@xml/shortcuts" />
-        </activity-alias>
-        <activity-alias
-            android:name=".CalendarNameAlias"
-            android:enabled="false"
-            android:exported="true"
-            android:icon="@mipmap/ic_launcher"
-            android:label="@string/app_name_calendar_alias"
-            android:roundIcon="@mipmap/ic_launcher_round"
-            android:targetActivity=".MainActivity">
-            <intent-filter>
-                <action android:name="android.intent.action.MAIN" />
-                <category android:name="android.intent.category.LAUNCHER" />
-            </intent-filter>
-            <meta-data
-                android:name="android.app.shortcuts"
-                android:resource="@xml/shortcuts" />
-        </activity-alias>
-
-        <!-- Standalone surface for a captured crash report. MainActivity routes
-             here on a startup crash-loop, so it stays clear of the app's Hilt
-             graph and Compose content. Not exported: launched only by us. -->
-        <activity
-            android:name=".ui.crash.CrashReportActivity"
-            android:exported="false"
-            android:excludeFromRecents="true"
-            android:launchMode="singleTask" />
-
-        <!-- Quick Settings tile: a one-tap "New event" shortcut in the QS panel.
-             Exported with BIND_QUICK_SETTINGS_TILE so only the system QS host can
-             bind it; the action mirrors the launcher "New event" shortcut. -->
-        <service
-            android:name=".qs.NewEventTileService"
-            android:exported="true"
-            android:icon="@drawable/ic_qs_new_event"
-            android:label="@string/qs_tile_new_event_label"
-            android:permission="android.permission.BIND_QUICK_SETTINGS_TILE">
-            <intent-filter>
-                <action android:name="android.service.quicksettings.action.QS_TILE" />
-            </intent-filter>
-        </service>
-
-        <!-- Reminder delivery is the app's own (#75): it plans the alarms from
-             Instances + Reminders instead of waiting for the provider's
-             EVENT_REMINDER broadcast, which OEM-modified providers demonstrably
-             retarget or never send. This receiver takes our scan alarm plus
-             every outside event that invalidates it — boot and package-replace
-             wipe pending alarms, and a clock or timezone change moves every
-             reminder relative to the one that is armed.
-             Exported: the system broadcasts arrive from outside the app. -->
+        <!-- The provider broadcasts EVENT_REMINDER at reminder time but posts
+             no notification itself — a calendar app must (v1.4, Etar model).
+             Exported: the broadcast arrives from the provider's process. -->
         <receiver
-            android:name=".data.reminders.ReminderScheduleReceiver"
+            android:name=".data.reminders.EventReminderReceiver"
             android:exported="true">
             <intent-filter>
-                <action android:name="android.intent.action.BOOT_COMPLETED" />
-                <action android:name="android.intent.action.MY_PACKAGE_REPLACED" />
-                <action android:name="android.intent.action.TIME_SET" />
-                <action android:name="android.intent.action.TIMEZONE_CHANGED" />
+                <action android:name="android.intent.action.EVENT_REMINDER" />
+                <data
+                    android:host="com.android.calendar"
+                    android:scheme="content" />
             </intent-filter>
         </receiver>
 
-        <!-- Snooze / dismiss actions on a reminder notification, plus the snooze
-             re-show alarm. Not exported: only our own notification buttons and
-             AlarmManager PendingIntents target it. -->
-        <receiver
-            android:name=".data.reminders.ReminderActionReceiver"
-            android:exported="false" />
-
         <!-- Home-screen widgets (Glance). Exported: the launcher/host binds them. -->
         <receiver
             android:name=".widget.agenda.AgendaWidgetReceiver"

app/src/main/java/de/jeanlucmakiola/calendula/CalendulaApp.kt

@@ -1,110 +1,11 @@
 package de.jeanlucmakiola.calendula
 
 import android.app.Application
-import dagger.hilt.android.EntryPointAccessors
 import dagger.hilt.android.HiltAndroidApp
-import de.jeanlucmakiola.calendula.data.backup.BackupScheduler
-import de.jeanlucmakiola.calendula.data.calendar.CalendarVisibilityReconciler
-import de.jeanlucmakiola.calendula.data.backup.BackupWorker
-import de.jeanlucmakiola.calendula.data.contacts.SpecialDatesScheduler
-import de.jeanlucmakiola.calendula.data.contacts.SpecialDatesSyncWorker
-import de.jeanlucmakiola.calendula.data.reminders.ReminderMaintenanceScheduler
-import de.jeanlucmakiola.calendula.data.reminders.ReminderMaintenanceWorker
-import de.jeanlucmakiola.floret.crash.CrashConfig
-import de.jeanlucmakiola.floret.crash.CrashReporter
-import kotlinx.coroutines.CoroutineScope
-import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.SupervisorJob
-import kotlinx.coroutines.flow.first
-import kotlinx.coroutines.launch
 
 /**
  * Application entry point. Registered as android:name=".CalendulaApp"
  * in AndroidManifest.xml. Hilt initializes its component graph here.
  */
 @HiltAndroidApp
-class CalendulaApp : Application() {
-
-    override fun onCreate() {
-        super.onCreate()
-        // Install first thing so startup crashes are captured too (privacy-
-        // respecting, on-device; the user submits the report by hand). The
-        // capture/loop-detection/report machinery lives in floret-kit's
-        // core-crash; only the app label + issue-tracker URLs are app-specific.
-        CrashReporter.install(
-            this,
-            CrashConfig(
-                appLabel = getString(R.string.app_name),
-                newIssueUrl = getString(R.string.report_issue_url),
-                chooseIssueUrl = getString(R.string.report_issue_choose_url),
-                issueTitle = getString(R.string.crash_report_issue_title),
-            ),
-        )
-        reconcileAutoBackup()
-        reconcileSpecialDates()
-        reconcileCalendarVisibility()
-        startReminderDelivery()
-    }
-
-    /**
-     * Bring reminder delivery up with the process (#75): a scan re-arms whatever
-     * the system dropped and posts what a missed alarm still owes, then the
-     * provider watch keeps edits re-planned. The daily worker is the backstop.
-     */
-    private fun startReminderDelivery() {
-        val deps = EntryPointAccessors.fromApplication(
-            this, ReminderMaintenanceWorker.Deps::class.java,
-        )
-        val scanner = deps.reminderScanner()
-        scanner.startWatchingProvider()
-        scanner.scanInBackground()
-        ReminderMaintenanceScheduler.apply(this)
-    }
-
-    /**
-     * Flush any calendar switch-off not yet written to `Calendars.VISIBLE`,
-     * including the set inherited from the retired app-local model (#75). A
-     * no-op in the steady state; `RootScreen` re-runs it after a later grant.
-     */
-    private fun reconcileCalendarVisibility() {
-        val deps = EntryPointAccessors.fromApplication(
-            this, CalendarVisibilityReconciler.Deps::class.java,
-        )
-        CoroutineScope(SupervisorJob() + Dispatchers.Default).launch {
-            deps.calendarVisibilityReconciler().run()
-        }
-    }
-
-    /**
-     * Bring the scheduled auto-backup work back in line with the saved settings
-     * on every launch — re-arms it after a reinstall and, crucially, cancels any
-     * orphaned work once backup has been turned off.
-     */
-    private fun reconcileAutoBackup() {
-        val deps = EntryPointAccessors.fromApplication(this, BackupWorker.Deps::class.java)
-        CoroutineScope(SupervisorJob() + Dispatchers.Default).launch {
-            val prefs = deps.settingsPrefs()
-            BackupScheduler.apply(
-                context = this@CalendulaApp,
-                enabled = prefs.autoBackupEnabled.first(),
-                intervalMinutes = prefs.autoBackupIntervalMinutes.first(),
-                hasFolder = prefs.autoBackupFolderUri.first() != null,
-            )
-        }
-    }
-
-    /**
-     * Re-arm (or cancel) the daily special-dates reconcile from the saved
-     * settings, like [reconcileAutoBackup]. The on-open refresh is RootScreen's
-     * ON_RESUME trigger, so no immediate run is needed here.
-     */
-    private fun reconcileSpecialDates() {
-        val deps = EntryPointAccessors.fromApplication(this, SpecialDatesSyncWorker.Deps::class.java)
-        CoroutineScope(SupervisorJob() + Dispatchers.Default).launch {
-            SpecialDatesScheduler.apply(
-                context = this@CalendulaApp,
-                enabled = deps.settingsPrefs().specialDatesEnabled.first(),
-            )
-        }
-    }
-}
+class CalendulaApp : Application()

app/src/main/java/de/jeanlucmakiola/calendula/MainActivity.kt

@@ -2,71 +2,32 @@ package de.jeanlucmakiola.calendula
 
 import android.content.Context
 import android.content.Intent
-import android.content.res.Configuration
 import android.net.Uri
 import android.os.Bundle
-import android.provider.CalendarContract
-import androidx.activity.SystemBarStyle
 import androidx.activity.compose.setContent
 import androidx.activity.enableEdgeToEdge
 import androidx.appcompat.app.AppCompatActivity
 import androidx.compose.foundation.isSystemInDarkTheme
-import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.fillMaxSize
-import androidx.compose.runtime.CompositionLocalProvider
-import androidx.compose.runtime.DisposableEffect
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.mutableStateOf
-import androidx.compose.runtime.remember
 import androidx.compose.runtime.setValue
 import androidx.compose.ui.Modifier
-import androidx.compose.ui.platform.LocalContext
 import androidx.core.content.IntentCompat
 import androidx.core.net.toUri
 import androidx.hilt.navigation.compose.hiltViewModel
 import androidx.lifecycle.compose.collectAsStateWithLifecycle
 import dagger.hilt.android.AndroidEntryPoint
 import de.jeanlucmakiola.calendula.data.prefs.ThemeMode
-import de.jeanlucmakiola.calendula.data.prefs.is24Hour
-import de.jeanlucmakiola.calendula.domain.EventForm
-import de.jeanlucmakiola.calendula.domain.buildInsertEventForm
 import de.jeanlucmakiola.calendula.ui.RootScreen
-import de.jeanlucmakiola.calendula.ui.common.LocalShowHourLines
-import de.jeanlucmakiola.calendula.ui.common.LocalTimelineZoom
-import de.jeanlucmakiola.calendula.ui.common.rememberTimelineZoom
-import de.jeanlucmakiola.calendula.ui.common.LocalSoftenColors
-import de.jeanlucmakiola.calendula.ui.common.LocalUse24HourFormat
 import de.jeanlucmakiola.calendula.ui.WidgetNavRequest
-import de.jeanlucmakiola.calendula.ui.common.CalendarView
-import de.jeanlucmakiola.calendula.ui.detail.EventDetailViewModel.Companion.NO_OCCURRENCE_TIME
-import de.jeanlucmakiola.calendula.ui.edit.ImportSource
-import de.jeanlucmakiola.floret.components.DebugRibbon
-import de.jeanlucmakiola.calendula.ui.crash.CrashReportActivity
-import de.jeanlucmakiola.calendula.domain.FontRole
 import de.jeanlucmakiola.calendula.ui.settings.SettingsViewModel
-import de.jeanlucmakiola.floret.crash.CrashReportDialog
-import de.jeanlucmakiola.floret.crash.CrashReporter
-import de.jeanlucmakiola.floret.crash.submitCrashReport
 import de.jeanlucmakiola.calendula.ui.theme.CalendulaTheme
-import de.jeanlucmakiola.calendula.ui.theme.calendulaTypography
-import de.jeanlucmakiola.calendula.ui.theme.resolveFontFamily
 import kotlinx.datetime.LocalDate
-import kotlinx.datetime.TimeZone
-import kotlinx.datetime.toLocalDateTime
-import kotlin.time.Clock
-import kotlin.time.Instant
-
-/** A prefilled create form from an external launch, with the source it came from. */
-private data class InsertRequest(val form: EventForm, val source: ImportSource)
 
 @AndroidEntryPoint
 class MainActivity : AppCompatActivity() {
 
-    // Which of light/dark the system bars are drawn for. The styles installed
-    // in onCreate read this field live, so androidx's config-change replay
-    // picks up the in-app override instead of the night resource qualifier.
-    private var systemBarsDark = false
-
     // The occurrence a reminder notification was tapped for (eventId, begin,
     // end — the detail screen's key shape). singleTop + onNewIntent route a
     // tap into the running activity; CalendarHost consumes and clears it.
@@ -80,45 +41,12 @@ class MainActivity : AppCompatActivity() {
     // by CalendarHost's import flow.
     private var requestedImportUri by mutableStateOf<Uri?>(null)
 
-    // A prefilled new-event form from an external ACTION_INSERT launch (another
-    // app/widget asking us to create an event, issue #30). Consumed once by
-    // CalendarHost, which opens it in the create form for review.
-    private var requestedInsert by mutableStateOf<InsertRequest?>(null)
-
-    // An external "edit this event" (ACTION_EDIT on content://.../events/<id>):
-    // opens the occurrence in the edit form. Same occurrence-key shape as the
-    // detail channel; consumed once by CalendarHost.
-    private var requestedEditKey by mutableStateOf<LongArray?>(null)
-
-    // A captured crash report awaiting the user's decision, surfaced as a dialog
-    // over the calendar on the next launch (the single-crash path). A startup
-    // crash-loop is handled out of band, before setContent — see below.
-    private var pendingCrashReport by mutableStateOf<String?>(null)
-
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
-
-        // If the app keeps crashing as it starts, the main UI can't be trusted
-        // to come up — route to the standalone report screen instead of
-        // re-entering the crashing graph.
-        if (CrashReporter.isCrashLoop(this)) {
-            startActivity(
-                Intent(this, CrashReportActivity::class.java)
-                    .addFlags(Intent.FLAG_ACTIVITY_NEW_TASK or Intent.FLAG_ACTIVITY_CLEAR_TASK),
-            )
-            finish()
-            return
-        }
-
-        systemBarsDark = resources.configuration.uiMode and Configuration.UI_MODE_NIGHT_MASK ==
-            Configuration.UI_MODE_NIGHT_YES
-        applyEdgeToEdge()
-        requestedDetailKey = intent.detailKeyOrNull() ?: intent.viewEventKeyOrNull()
+        enableEdgeToEdge()
+        requestedDetailKey = intent.detailKeyOrNull()
         requestedNav = intent.navRequestOrNull()
         requestedImportUri = intent.importUriOrNull()
-        requestedInsert = intent.insertRequestOrNull()
-        requestedEditKey = intent.editEventKeyOrNull()
-        if (CrashReporter.shouldPrompt(this)) pendingCrashReport = CrashReporter.pendingReport(this)
         setContent {
             // One activity-scoped SettingsViewModel drives both the theme here
             // and the Settings screen, so a theme change applies app-wide at once.
@@ -129,117 +57,28 @@ class MainActivity : AppCompatActivity() {
                 ThemeMode.LIGHT -> false
                 ThemeMode.DARK -> true
             }
-            // onCreate can only see the night resource qualifier, not the in-app
-            // override — re-apply from the resolved theme so the bar icons follow
-            // the app's light/dark choice.
-            DisposableEffect(darkTheme) {
-                systemBarsDark = darkTheme
-                applyEdgeToEdge()
-                onDispose {}
-            }
-            // The app-wide clock convention: the time-format preference resolved
-            // against the device's 24-hour system setting, provided once here so
-            // every time label reads it via LocalUse24HourFormat.
-            val context = LocalContext.current
-            val use24Hour = remember(settings.timeFormat, context) {
-                settings.timeFormat.is24Hour(android.text.format.DateFormat.is24HourFormat(context))
-            }
-            // The user's custom-font choice, resolved to a Material typography
-            // (issue #19). Recomputed only when a token — or the custom-font
-            // re-import stamp AppFontSettings carries, so replacing the file
-            // behind an active "custom" token still refreshes — changes;
-            // "system for both" returns the default scale untouched.
-            // The timeline scale plus the pinch in flight over it (#56). Held
-            // here, above the calendar views, so a zoom survives paging between
-            // weeks and switching between the week and day view.
-            val timelineZoom = rememberTimelineZoom(
-                stored = settings.timelineScale,
-                onPersist = settingsViewModel::setTimelineScale,
-            )
-            val fonts by settingsViewModel.fontState.collectAsStateWithLifecycle()
-            val typography = remember(fonts, context) {
-                calendulaTypography(
-                    brand = resolveFontFamily(fonts.brand, FontRole.BRAND, context),
-                    plain = resolveFontFamily(fonts.plain, FontRole.PLAIN, context),
-                )
-            }
             CalendulaTheme(
                 darkTheme = darkTheme,
                 dynamicColor = settings.dynamicColor,
-                typography = typography,
             ) {
-                Box(modifier = Modifier.fillMaxSize()) {
-                    CompositionLocalProvider(
-                        LocalUse24HourFormat provides use24Hour,
-                        LocalShowHourLines provides settings.showHourLines,
-                        LocalTimelineZoom provides timelineZoom,
-                        LocalSoftenColors provides settings.softenColors,
-                    ) {
-                        RootScreen(
-                            modifier = Modifier.fillMaxSize(),
-                            requestedDetailKey = requestedDetailKey,
-                            onDetailKeyConsumed = { requestedDetailKey = null },
-                            widgetNavRequest = requestedNav,
-                            onWidgetNavConsumed = { requestedNav = null },
-                            requestedImportUri = requestedImportUri,
-                            onImportConsumed = { requestedImportUri = null },
-                            requestedInsertForm = requestedInsert?.form,
-                            requestedInsertSource = requestedInsert?.source ?: ImportSource.Insert,
-                            onInsertConsumed = { requestedInsert = null },
-                            requestedEditKey = requestedEditKey,
-                            onEditKeyConsumed = { requestedEditKey = null },
-                        )
-                    }
-                    // A persistent corner marker so a debug build is never
-                    // mistaken for the production app; compiled out of release.
-                    if (BuildConfig.DEBUG) DebugRibbon()
-                }
-                pendingCrashReport?.let { report ->
-                    CrashReportDialog(
-                        report = report,
-                        onSend = {
-                            submitCrashReport(this@MainActivity, report)
-                            CrashReporter.clearReport(this@MainActivity)
-                            pendingCrashReport = null
-                        },
-                        onDismiss = {
-                            // Keep the report (Settings can still reach it); just
-                            // stop it popping on every launch.
-                            CrashReporter.dismissPrompt(this@MainActivity)
-                            pendingCrashReport = null
-                        },
-                    )
-                }
+                RootScreen(
+                    modifier = Modifier.fillMaxSize(),
+                    requestedDetailKey = requestedDetailKey,
+                    onDetailKeyConsumed = { requestedDetailKey = null },
+                    widgetNavRequest = requestedNav,
+                    onWidgetNavConsumed = { requestedNav = null },
+                    requestedImportUri = requestedImportUri,
+                    onImportConsumed = { requestedImportUri = null },
+                )
             }
         }
     }
 
-    /**
-     * Applies the transparent edge-to-edge bars for the current [systemBarsDark].
-     * Both scrims are transparent because API 29+ enforces its own contrast and
-     * ignores them anyway.
-     */
-    private fun applyEdgeToEdge() {
-        val transparent = android.graphics.Color.TRANSPARENT
-        enableEdgeToEdge(
-            statusBarStyle = SystemBarStyle.auto(transparent, transparent) { systemBarsDark },
-            navigationBarStyle = SystemBarStyle.auto(transparent, transparent) { systemBarsDark },
-        )
-    }
-
-    override fun onResume() {
-        super.onResume()
-        // Reaching a running UI means startup succeeded; reset the loop trail.
-        CrashReporter.markHealthy(this)
-    }
-
     override fun onNewIntent(intent: Intent) {
         super.onNewIntent(intent)
-        (intent.detailKeyOrNull() ?: intent.viewEventKeyOrNull())?.let { requestedDetailKey = it }
+        intent.detailKeyOrNull()?.let { requestedDetailKey = it }
         intent.navRequestOrNull()?.let { requestedNav = it }
         intent.importUriOrNull()?.let { requestedImportUri = it }
-        intent.insertRequestOrNull()?.let { requestedInsert = it }
-        intent.editEventKeyOrNull()?.let { requestedEditKey = it }
     }
 
     /**
@@ -253,110 +92,21 @@ class MainActivity : AppCompatActivity() {
             Intent.ACTION_SEND -> IntentCompat.getParcelableExtra(this, Intent.EXTRA_STREAM, Uri::class.java)
             else -> null
         } ?: return null
-        // The calendar "view time" Uri (a date tap) is also ACTION_VIEW/content;
-        // it's a navigation, not a file to import, so [navRequestOrNull] owns it.
-        if (uri.host == CALENDAR_PROVIDER_HOST) return null
         return uri.takeIf { it.scheme == "content" || it.scheme == "file" }
     }
 
-    /**
-     * A prefilled new-event form from an external launch asking us to create an
-     * event — another app or widget (e.g. Todo Agenda) firing `ACTION_INSERT`
-     * (issue #30), or `ACTION_EDIT` with no concrete event id (AOSP's "edit a new
-     * event", i.e. create). The new event's fields ride as CalendarContract
-     * extras; anything omitted falls back to the in-app "new event" defaults in
-     * [buildInsertEventForm]. An intent that names no end time leaves the length
-     * to the default-duration setting ([ImportSource.InsertOpenEnded], #54).
-     */
-    private fun Intent.insertRequestOrNull(): InsertRequest? {
-        // ACTION_EDIT / ACTION_INSERT_OR_EDIT on an existing event route to the
-        // edit form instead ([editEventKeyOrNull]); an id-less one is a create,
-        // as is any plain ACTION_INSERT.
-        val isCreate = action == Intent.ACTION_INSERT ||
-            ((action == Intent.ACTION_EDIT || action == Intent.ACTION_INSERT_OR_EDIT) &&
-                editEventKeyOrNull() == null)
-        if (!isCreate) return null
-        val beginMillis = longExtraOrNull(CalendarContract.EXTRA_EVENT_BEGIN_TIME)
-        val endMillis = longExtraOrNull(CalendarContract.EXTRA_EVENT_END_TIME)
-        val form = buildInsertEventForm(
-            beginMillis = beginMillis,
-            endMillis = endMillis,
-            isAllDay = getBooleanExtra(CalendarContract.EXTRA_EVENT_ALL_DAY, false),
-            title = getStringExtra(CalendarContract.Events.TITLE),
-            description = getStringExtra(CalendarContract.Events.DESCRIPTION),
-            location = getStringExtra(CalendarContract.Events.EVENT_LOCATION),
-            rrule = getStringExtra(CalendarContract.Events.RRULE),
-            zone = TimeZone.currentSystemDefault(),
-            now = Clock.System.now(),
-        )
-        // An end the intent didn't name — or one [buildInsertEventForm] drops for
-        // landing before the start — leaves the length to the setting.
-        val namesEnd = beginMillis != null && endMillis != null && endMillis >= beginMillis
-        return InsertRequest(form, if (namesEnd) ImportSource.Insert else ImportSource.InsertOpenEnded)
+    private fun Intent.navRequestOrNull(): WidgetNavRequest? = when {
+        // Launcher long-press "New event" shortcut. Static shortcut intents
+        // can't carry typed extras, so the action alone signals create-on-today.
+        action == ACTION_NEW_EVENT -> WidgetNavRequest.Create(null)
+        getBooleanExtra(EXTRA_CREATE, false) ->
+            WidgetNavRequest.Create(getStringExtra(EXTRA_DATE_ISO))
+        getStringExtra(EXTRA_DATE_ISO) != null ->
+            WidgetNavRequest.OpenDate(getStringExtra(EXTRA_DATE_ISO)!!)
+        else -> null
     }
 
-    /** A Long extra's value, or null when the extra is absent. */
-    private fun Intent.longExtraOrNull(key: String): Long? =
-        if (hasExtra(key)) getLongExtra(key, 0L) else null
-
-    /**
-     * The date a launcher/clock date tap points at, parsed from the AOSP calendar
-     * "view time" intent: ACTION_VIEW on `content://com.android.calendar/time/
-     * <epochMillis>`. Null for any other intent. The matching manifest filter is
-     * what lets users pick Calendula from the system calendar chooser (issue #9).
-     */
-    private fun Intent.calendarTimeDateOrNull(): LocalDate? {
-        if (action != Intent.ACTION_VIEW) return null
-        val uri = data ?: return null
-        if (uri.host != CALENDAR_PROVIDER_HOST) return null
-        val segments = uri.pathSegments
-        if (segments.firstOrNull() != "time") return null
-        val millis = segments.getOrNull(1)?.toLongOrNull() ?: return null
-        return Instant.fromEpochMilliseconds(millis)
-            .toLocalDateTime(TimeZone.currentSystemDefault()).date
-    }
-
-    private fun Intent.navRequestOrNull(): WidgetNavRequest? {
-        // An external date tap (launcher/clock) has no widget source, so it opens
-        // the day view rooted over the default home view (OpenDate source = null).
-        calendarTimeDateOrNull()?.let { return WidgetNavRequest.OpenDate(it.toString(), source = null) }
-        // A widget header tap: open a top-level view with no date drill-in. The
-        // empty string carried by [openViewIntent] means "the default home view".
-        if (hasExtra(EXTRA_OPEN_VIEW)) {
-            val name = getStringExtra(EXTRA_OPEN_VIEW).orEmpty()
-            return WidgetNavRequest.OpenView(CalendarView.entries.firstOrNull { it.name == name })
-        }
-        val source = sourceViewOrNull()
-        val eventId = getLongExtra(EXTRA_EVENT_ID, -1L)
-        return when {
-            // Launcher long-press "New event" shortcut. Static shortcut intents
-            // can't carry typed extras, so the action alone signals create-on-today.
-            action == ACTION_NEW_EVENT -> WidgetNavRequest.Create(null)
-            getBooleanExtra(EXTRA_CREATE, false) ->
-                WidgetNavRequest.Create(getStringExtra(EXTRA_DATE_ISO))
-            // A widget event tap carries both the occurrence and its source view;
-            // reminders (no source) fall through to [detailKeyOrNull] instead.
-            source != null && eventId != -1L -> WidgetNavRequest.OpenEvent(
-                eventId = eventId,
-                beginMillis = getLongExtra(EXTRA_BEGIN_MILLIS, 0L),
-                endMillis = getLongExtra(EXTRA_END_MILLIS, 0L),
-                source = source,
-            )
-            source != null && getStringExtra(EXTRA_DATE_ISO) != null ->
-                WidgetNavRequest.OpenDate(getStringExtra(EXTRA_DATE_ISO)!!, source)
-            else -> null
-        }
-    }
-
-    /** The view the launching widget represents, if any (see [EXTRA_SOURCE_VIEW]). */
-    private fun Intent.sourceViewOrNull(): CalendarView? =
-        getStringExtra(EXTRA_SOURCE_VIEW)
-            ?.let { name -> CalendarView.entries.firstOrNull { it.name == name } }
-
     private fun Intent.detailKeyOrNull(): LongArray? {
-        // A widget event tap (source present) is routed through [navRequestOrNull]
-        // so it can also set the base view; only sourceless reminder taps land here.
-        if (sourceViewOrNull() != null) return null
         val eventId = getLongExtra(EXTRA_EVENT_ID, -1L)
         if (eventId == -1L) return null
         return longArrayOf(
@@ -366,75 +116,13 @@ class MainActivity : AppCompatActivity() {
         )
     }
 
-    /**
-     * The detail key for an external "open this event" — ACTION_VIEW on
-     * `content://com.android.calendar/events/<id>`, the way AOSP fires it (e.g.
-     * tapping an existing event in the Todo Agenda widget, issue #48). Reuses the
-     * same occurrence-key channel as reminder taps. The launcher passes the
-     * occurrence's times as `EXTRA_EVENT_BEGIN_TIME` / `EXTRA_EVENT_END_TIME` when
-     * it has them; a bare URI omits them, so we carry [NO_OCCURRENCE_TIME] and
-     * [EventDetailViewModel] falls back to the event row's own DTSTART/DTEND
-     * rather than rendering at the epoch.
-     */
-    private fun Intent.viewEventKeyOrNull(): LongArray? {
-        if (action != Intent.ACTION_VIEW) return null
-        val uri = data ?: return null
-        if (uri.host != CALENDAR_PROVIDER_HOST) return null
-        val segments = uri.pathSegments
-        if (segments.firstOrNull() != "events") return null
-        val eventId = segments.getOrNull(1)?.toLongOrNull() ?: return null
-        return longArrayOf(
-            eventId,
-            longExtraOrNull(CalendarContract.EXTRA_EVENT_BEGIN_TIME) ?: NO_OCCURRENCE_TIME,
-            longExtraOrNull(CalendarContract.EXTRA_EVENT_END_TIME) ?: NO_OCCURRENCE_TIME,
-        )
-    }
-
-    /**
-     * The occurrence key for an external "edit this event" — `ACTION_EDIT` on
-     * `content://com.android.calendar/events/<id>`, the way AOSP fires it (e.g.
-     * an assistant, task app, or widget that wants to open the event for editing
-     * rather than viewing). Opens it in the edit form. Reuses the same
-     * occurrence-key channel as reminder/view taps; the caller passes the
-     * occurrence's times as `EXTRA_EVENT_BEGIN_TIME` / `EXTRA_EVENT_END_TIME`
-     * when it has them, otherwise we carry [NO_OCCURRENCE_TIME] and
-     * [EventEditViewModel.openForEdit] falls back to the event row's own
-     * DTSTART/DTEND. An id-less `ACTION_EDIT` — or `ACTION_INSERT_OR_EDIT`, which
-     * some apps fire — is a create instead ([insertFormOrNull]).
-     */
-    private fun Intent.editEventKeyOrNull(): LongArray? {
-        if (action != Intent.ACTION_EDIT && action != Intent.ACTION_INSERT_OR_EDIT) return null
-        val uri = data ?: return null
-        if (uri.host != CALENDAR_PROVIDER_HOST) return null
-        val segments = uri.pathSegments
-        if (segments.firstOrNull() != "events") return null
-        val eventId = segments.getOrNull(1)?.toLongOrNull() ?: return null
-        return longArrayOf(
-            eventId,
-            longExtraOrNull(CalendarContract.EXTRA_EVENT_BEGIN_TIME) ?: NO_OCCURRENCE_TIME,
-            longExtraOrNull(CalendarContract.EXTRA_EVENT_END_TIME) ?: NO_OCCURRENCE_TIME,
-        )
-    }
-
     companion object {
-        // The calendar provider's authority/host. A date tap arrives as
-        // ACTION_VIEW on content://com.android.calendar/time/<epochMillis>.
-        private const val CALENDAR_PROVIDER_HOST = "com.android.calendar"
-
         private const val EXTRA_EVENT_ID = "de.jeanlucmakiola.calendula.extra.EVENT_ID"
         private const val EXTRA_BEGIN_MILLIS = "de.jeanlucmakiola.calendula.extra.BEGIN"
         private const val EXTRA_END_MILLIS = "de.jeanlucmakiola.calendula.extra.END"
         private const val EXTRA_DATE_ISO = "de.jeanlucmakiola.calendula.extra.DATE_ISO"
         private const val EXTRA_CREATE = "de.jeanlucmakiola.calendula.extra.CREATE"
 
-        // A widget header tap asking to open a top-level view (no date drill-in).
-        // Its value is the target [CalendarView] name, or "" for the default view.
-        private const val EXTRA_OPEN_VIEW = "de.jeanlucmakiola.calendula.extra.OPEN_VIEW"
-
-        // The [CalendarView] (by name) of the widget a launch came from. Roots the
-        // in-app back stack in that view; absent for non-widget launches (reminders).
-        private const val EXTRA_SOURCE_VIEW = "de.jeanlucmakiola.calendula.extra.SOURCE_VIEW"
-
         // Fired by the launcher long-press "New event" shortcut (res/xml/
         // shortcuts.xml hardcodes this string — keep the two in sync).
         const val ACTION_NEW_EVENT = "de.jeanlucmakiola.calendula.action.NEW_EVENT"
@@ -457,35 +145,14 @@ class MainActivity : AppCompatActivity() {
             addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
         }
 
-        /**
-         * Open the day view anchored on [date], drilled in over the launching
-         * widget's [source] view (home-screen widgets). Backing out of the day
-         * returns to [source], then to the default home view.
-         */
-        fun openDateIntent(context: Context, date: LocalDate, source: CalendarView): Intent =
+        /** Open the day view anchored on [date] (home-screen widgets). */
+        fun openDateIntent(context: Context, date: LocalDate): Intent =
             Intent(context, MainActivity::class.java).apply {
                 data = "calendula://date/$date".toUri()
                 putExtra(EXTRA_DATE_ISO, date.toString())
-                putExtra(EXTRA_SOURCE_VIEW, source.name)
                 addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
             }
 
-        /**
-         * Open one occurrence's detail from a widget event tap, rooting the back
-         * stack in the widget's [source] view. Same occurrence-key shape as
-         * [eventDetailIntent]; the [source] extra is what distinguishes a widget
-         * tap (sets the base view) from a reminder tap (leaves it untouched).
-         */
-        fun openEventIntent(
-            context: Context,
-            eventId: Long,
-            beginMillis: Long,
-            endMillis: Long,
-            source: CalendarView,
-        ): Intent = eventDetailIntent(context, eventId, beginMillis, endMillis).apply {
-            putExtra(EXTRA_SOURCE_VIEW, source.name)
-        }
-
         /** Open the create-event form prefilled for [date] (home-screen widgets). */
         fun openCreateIntent(context: Context, date: LocalDate): Intent =
             Intent(context, MainActivity::class.java).apply {
@@ -494,19 +161,5 @@ class MainActivity : AppCompatActivity() {
                 putExtra(EXTRA_DATE_ISO, date.toString())
                 addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
             }
-
-        /**
-         * Open the app on a top-level [view] with no date drill-in — a widget
-         * header tap. A null [view] opens the user's default home view (the agenda
-         * widget's "Upcoming" title); a concrete view roots there over the default
-         * home (the month widget's month/year title → [CalendarView.Month]). The
-         * per-view data URI keeps distinct headers' PendingIntents from collapsing.
-         */
-        fun openViewIntent(context: Context, view: CalendarView?): Intent =
-            Intent(context, MainActivity::class.java).apply {
-                data = "calendula://view/${view?.name ?: "default"}".toUri()
-                putExtra(EXTRA_OPEN_VIEW, view?.name ?: "")
-                addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
-            }
     }
 }

app/src/main/java/de/jeanlucmakiola/calendula/data/appname/LauncherNameManager.kt

@@ -1,109 +0,0 @@
-package de.jeanlucmakiola.calendula.data.appname
-
-import android.content.ComponentName
-import android.content.Context
-import android.content.pm.PackageManager
-import dagger.hilt.android.qualifiers.ApplicationContext
-import javax.inject.Inject
-import javax.inject.Singleton
-
-/** The launcher label the app shows for itself (issue #44). */
-enum class LauncherName { CALENDULA, CALENDAR }
-
-/** The two launcher aliases declared in the manifest. */
-enum class LauncherAlias { DEFAULT, CALENDAR }
-
-/** One component-enable change in a [aliasWritePlan]. */
-data class AliasStateChange(val alias: LauncherAlias, val enabled: Boolean)
-
-/**
- * Interpret the `CalendarNameAlias` component-enabled state as a [LauncherName].
- * Only [PackageManager.COMPONENT_ENABLED_STATE_ENABLED] means the "Calendar"
- * name is active; `DEFAULT` (never toggled) and `DISABLED` both resolve to the
- * manifest default, "Calendula".
- */
-fun launcherNameFor(calendarAliasState: Int): LauncherName =
-    if (calendarAliasState == PackageManager.COMPONENT_ENABLED_STATE_ENABLED) {
-        LauncherName.CALENDAR
-    } else {
-        LauncherName.CALENDULA
-    }
-
-/**
- * The ordered enable/disable steps to switch the launcher name to [target].
- * Always **enables the target alias first, then disables the other** — the two
- * `setComponentEnabledSetting` calls are not atomic, and this ordering means the
- * only transient the launcher can observe is a harmless two-entry state, never a
- * zero-entry one (which would briefly drop the app from the launcher).
- */
-fun aliasWritePlan(target: LauncherName): List<AliasStateChange> = when (target) {
-    LauncherName.CALENDAR -> listOf(
-        AliasStateChange(LauncherAlias.CALENDAR, enabled = true),
-        AliasStateChange(LauncherAlias.DEFAULT, enabled = false),
-    )
-    LauncherName.CALENDULA -> listOf(
-        AliasStateChange(LauncherAlias.DEFAULT, enabled = true),
-        AliasStateChange(LauncherAlias.CALENDAR, enabled = false),
-    )
-}
-
-/**
- * Switches the app's launcher label between "Calendula" and "Calendar" by
- * enabling/disabling the two `<activity-alias>` components (issue #44). The
- * component-enabled state is the single source of truth — there is no persisted
- * preference — so [current] reads it straight from [PackageManager] and the two
- * always agree.
- *
- * The decision logic lives in the pure [launcherNameFor] / [aliasWritePlan]
- * functions above (JVM-tested); this class is only the thin framework seam.
- */
-@Singleton
-class LauncherNameManager @Inject constructor(
-    @ApplicationContext private val context: Context,
-) {
-    private val packageManager: PackageManager get() = context.packageManager
-
-    // The class portion is namespace-qualified (suffix-free), the package portion
-    // is the applicationId (which carries the .debug / .releasetest suffix). The
-    // manifest's ".CalendarNameAlias" resolves its class against the namespace, so
-    // the real component is <namespace>.CalendarNameAlias registered under the
-    // suffixed applicationId. Do NOT use ComponentName(context, ".CalendarNameAlias")
-    // — its leading-dot form prepends the applicationId to the class too, producing
-    // "<appId>.CalendarNameAlias" and failing on every debug / releaseTest build.
-    private fun component(alias: LauncherAlias): ComponentName {
-        val simpleName = when (alias) {
-            LauncherAlias.DEFAULT -> "DefaultNameAlias"
-            LauncherAlias.CALENDAR -> "CalendarNameAlias"
-        }
-        return ComponentName(context.packageName, "$NAMESPACE.$simpleName")
-    }
-
-    /** The launcher name currently in effect. */
-    fun current(): LauncherName =
-        launcherNameFor(packageManager.getComponentEnabledSetting(component(LauncherAlias.CALENDAR)))
-
-    /** Switch the launcher name to [name] (no-op cost if already active). */
-    fun set(name: LauncherName) {
-        for (change in aliasWritePlan(name)) {
-            val state = if (change.enabled) {
-                PackageManager.COMPONENT_ENABLED_STATE_ENABLED
-            } else {
-                PackageManager.COMPONENT_ENABLED_STATE_DISABLED
-            }
-            packageManager.setComponentEnabledSetting(
-                component(change.alias),
-                state,
-                PackageManager.DONT_KILL_APP,
-            )
-        }
-    }
-
-    private companion object {
-        /**
-         * The app's namespace (R-class package) — NOT `applicationId`, which
-         * carries the build-type suffix. Kept in sync with `namespace` in
-         * `app/build.gradle.kts`.
-         */
-        const val NAMESPACE = "de.jeanlucmakiola.calendula"
-    }
-}

app/src/main/java/de/jeanlucmakiola/calendula/data/backup/AutoBackup.kt

@@ -1,176 +0,0 @@
-package de.jeanlucmakiola.calendula.data.backup
-
-import android.Manifest
-import android.app.NotificationChannel
-import android.app.NotificationManager
-import android.app.PendingIntent
-import android.content.Context
-import android.content.pm.PackageManager
-import android.os.Build
-import android.util.Log
-import androidx.core.app.NotificationCompat
-import androidx.core.app.NotificationManagerCompat
-import androidx.core.content.ContextCompat
-import androidx.core.net.toUri
-import androidx.work.CoroutineWorker
-import androidx.work.ExistingPeriodicWorkPolicy
-import androidx.work.ExistingWorkPolicy
-import androidx.work.OneTimeWorkRequestBuilder
-import androidx.work.PeriodicWorkRequestBuilder
-import androidx.work.WorkManager
-import androidx.work.WorkerParameters
-import dagger.hilt.EntryPoint
-import dagger.hilt.InstallIn
-import dagger.hilt.android.EntryPointAccessors
-import dagger.hilt.components.SingletonComponent
-import de.jeanlucmakiola.calendula.R
-import de.jeanlucmakiola.calendula.data.calendar.CalendarRepository
-import de.jeanlucmakiola.calendula.data.ics.IcsExporter
-import de.jeanlucmakiola.calendula.data.prefs.SettingsPrefs
-import de.jeanlucmakiola.calendula.domain.ics.IcsWriter
-import kotlinx.coroutines.flow.first
-import java.util.concurrent.TimeUnit
-import kotlin.time.Clock
-
-/**
- * Schedules and runs the automatic periodic `.ics` backup of local calendars
- * (issue #8). One-way export only — it mirrors the manual "Back up" into a
- * user-chosen folder on an interval; it is not a sync. Stays INTERNET-free:
- * everything is local provider reads + a local file write.
- */
-object BackupScheduler {
-
-    private const val WORK_NAME = "auto-backup"
-    private const val WORK_NAME_NOW = "auto-backup-now"
-
-    /**
-     * Reconcile the scheduled work with the current settings: enqueue a unique
-     * periodic request when backup is on and a folder is set, otherwise cancel
-     * it. WorkManager persists the request across reboots on its own.
-     *
-     * The first run is delayed by one interval so it never overlaps an immediate
-     * [runNow] (two simultaneous writes would race and leave a "(1)" duplicate).
-     */
-    fun apply(context: Context, enabled: Boolean, intervalMinutes: Long, hasFolder: Boolean) {
-        val workManager = WorkManager.getInstance(context)
-        if (!enabled || !hasFolder) {
-            workManager.cancelUniqueWork(WORK_NAME)
-            // Also cancel any pending immediate run — otherwise a failing run-now
-            // keeps retrying after the user has turned backup off.
-            workManager.cancelUniqueWork(WORK_NAME_NOW)
-            return
-        }
-        // WorkManager's own floor is 15 min; the UI floors the user choice at 30.
-        val interval = intervalMinutes.coerceAtLeast(15L)
-        val request = PeriodicWorkRequestBuilder<BackupWorker>(interval, TimeUnit.MINUTES)
-            .setInitialDelay(interval, TimeUnit.MINUTES)
-            .build()
-        workManager.enqueueUniquePeriodicWork(
-            WORK_NAME,
-            ExistingPeriodicWorkPolicy.UPDATE,
-            request,
-        )
-    }
-
-    /**
-     * Run one export immediately (e.g. right after enabling or changing the
-     * folder) for instant feedback. Unique + REPLACE so rapid taps coalesce into
-     * a single run rather than racing each other.
-     */
-    fun runNow(context: Context) {
-        WorkManager.getInstance(context).enqueueUniqueWork(
-            WORK_NAME_NOW,
-            ExistingWorkPolicy.REPLACE,
-            OneTimeWorkRequestBuilder<BackupWorker>().build(),
-        )
-    }
-}
-
-/**
- * Exports the local calendars to `calendula-backup.ics` in the configured folder,
- * overwriting the previous file. Pulls its collaborators through a Hilt
- * [EntryPoint] so it works under WorkManager's default (no-arg) worker factory —
- * no custom factory / Application wiring needed. Records the outcome for the
- * settings status line, and notifies after repeated failures.
- */
-class BackupWorker(
-    appContext: Context,
-    params: WorkerParameters,
-) : CoroutineWorker(appContext, params) {
-
-    @EntryPoint
-    @InstallIn(SingletonComponent::class)
-    interface Deps {
-        fun settingsPrefs(): SettingsPrefs
-        fun repository(): CalendarRepository
-        fun exporter(): IcsExporter
-    }
-
-    override suspend fun doWork(): Result {
-        val deps = EntryPointAccessors.fromApplication(applicationContext, Deps::class.java)
-        val prefs = deps.settingsPrefs()
-        // Respect the toggle even for already-queued work: if backup was turned
-        // off, no-op (and don't retry) so a lingering run can't revive itself.
-        if (!prefs.autoBackupEnabled.first()) return Result.success()
-        val folder = prefs.autoBackupFolderUri.first()
-            ?: return Result.failure() // nothing to write to — leave scheduling to settings
-        val now = System.currentTimeMillis()
-        return try {
-            val events = deps.repository().exportEvents()
-            val content = IcsWriter().writeCalendar(events, Clock.System.now())
-            deps.exporter().writeToFolder(folder.toUri(), BACKUP_FILE_NAME, content)
-            prefs.recordAutoBackupRun(success = true, atMillis = now)
-            Result.success()
-        } catch (e: Exception) {
-            prefs.recordAutoBackupRun(success = false, atMillis = now)
-            if (prefs.autoBackupStatus.first().consecutiveFailures >= FAILURE_NOTIFY_THRESHOLD) {
-                notifyFailure(applicationContext)
-            }
-            Log.w(TAG, "Automatic backup failed", e)
-            Result.retry()
-        }
-    }
-
-    private fun notifyFailure(context: Context) {
-        val canPost = Build.VERSION.SDK_INT < Build.VERSION_CODES.TIRAMISU ||
-            ContextCompat.checkSelfPermission(context, Manifest.permission.POST_NOTIFICATIONS) ==
-            PackageManager.PERMISSION_GRANTED
-        if (!canPost) return
-        val manager = NotificationManagerCompat.from(context)
-        manager.createNotificationChannel(
-            NotificationChannel(
-                CHANNEL_ID,
-                context.getString(R.string.backup_channel_name),
-                NotificationManager.IMPORTANCE_LOW,
-            ).apply { description = context.getString(R.string.backup_channel_description) },
-        )
-        val launch = context.packageManager.getLaunchIntentForPackage(context.packageName)
-        val tap = launch?.let {
-            PendingIntent.getActivity(
-                context, 0, it,
-                PendingIntent.FLAG_UPDATE_CURRENT or PendingIntent.FLAG_IMMUTABLE,
-            )
-        }
-        val notification = NotificationCompat.Builder(context, CHANNEL_ID)
-            .setSmallIcon(R.drawable.ic_notification)
-            .setContentTitle(context.getString(R.string.backup_failed_title))
-            .setContentText(context.getString(R.string.backup_failed_text))
-            .setCategory(NotificationCompat.CATEGORY_ERROR)
-            .setAutoCancel(true)
-            .apply { tap?.let(::setContentIntent) }
-            .build()
-        try {
-            manager.notify(NOTIFICATION_ID, notification)
-        } catch (e: SecurityException) {
-            Log.w(TAG, "Could not post backup-failure notification", e)
-        }
-    }
-
-    companion object {
-        const val BACKUP_FILE_NAME = "calendula-backup.ics"
-        private const val FAILURE_NOTIFY_THRESHOLD = 2
-        private const val CHANNEL_ID = "backup"
-        private const val NOTIFICATION_ID = 2
-        private const val TAG = "BackupWorker"
-    }
-}

app/src/main/java/de/jeanlucmakiola/calendula/data/calendar/AllDayReminderEncoding.kt

@@ -1,10 +1,11 @@
 package de.jeanlucmakiola.calendula.data.calendar
 
-import de.jeanlucmakiola.calendula.domain.reminders.allDayLeadDays
+import java.time.Instant
 import java.time.LocalDate
 import java.time.LocalTime
 import java.time.ZoneId
 import java.time.ZoneOffset
+import java.time.temporal.ChronoUnit
 
 /**
  * Translates an all-day reminder between the **semantic** lead time the UI
@@ -49,36 +50,21 @@ internal fun toProviderAllDayMinutes(
     return ((utcMidnight - fire) / MILLIS_PER_MINUTE).toInt()
 }
 
-/**
- * The next date on or after [today] carrying [month]/[day] — the date to sample
- * a yearly all-day reminder's UTC offset at. A managed birthday's DTSTART is an
- * ancient anchor (1972 for year-less dates), a year whose timezone rules
- * (pre-DST offsets) differ from today's; sampling the offset there skews every
- * modern occurrence by hours. Sampling at the upcoming occurrence makes the
- * stored offset correct for it and its neighbours (only ±1h DST drift remains,
- * the inherent limit). Feb-29 skips forward to the next leap year.
- */
-internal fun nextYearlyOccurrence(month: Int, day: Int, today: LocalDate): LocalDate {
-    var year = today.year
-    // A Feb-29 date is valid only every ~4 years; 8 tries always reaches one.
-    repeat(8) {
-        val candidate = runCatching { LocalDate.of(year, month, day) }.getOrNull()
-        if (candidate != null && !candidate.isBefore(today)) return candidate
-        year++
-    }
-    // Unreachable for real month/day inputs; fall back to the raw anchor.
-    return LocalDate.of(today.year, month, day)
-}
-
 /**
  * Recover the semantic whole-day lead time from a raw all-day reminder
- * [rawMinutes] — the inverse of [toProviderAllDayMinutes], for the form and the
- * detail screen. Delegates to [allDayLeadDays], so the day displayed is the day
- * the reminder actually fires on.
+ * [rawMinutes]. Keys off the **local date** of the encoded fire instant, so it
+ * returns the right day count regardless of which [timeOfDayMinutes] wrote the
+ * row — including pre-feature rows (raw multiples of 1440, fired at UTC midnight)
+ * and rows written under a different timezone. A negative [rawMinutes] (fire
+ * after DTSTART) folds to day 0.
  */
 internal fun fromProviderAllDayMinutes(
     rawMinutes: Int,
     startDate: LocalDate,
     zone: ZoneId,
-    timeOfDayMinutes: Int,
-): Int = allDayLeadDays(rawMinutes, startDate, zone, timeOfDayMinutes).toInt() * MINUTES_PER_DAY
+): Int {
+    val utcMidnight = startDate.atStartOfDay(ZoneOffset.UTC).toInstant().toEpochMilli()
+    val fireLocalDate = Instant.ofEpochMilli(utcMidnight - rawMinutes * MILLIS_PER_MINUTE)
+        .atZone(zone).toLocalDate()
+    return ChronoUnit.DAYS.between(fireLocalDate, startDate).toInt() * MINUTES_PER_DAY
+}

app/src/main/java/de/jeanlucmakiola/calendula/data/calendar/CalendarColorPalette.kt

@@ -1,22 +0,0 @@
-package de.jeanlucmakiola.calendula.data.calendar
-
-/**
- * Google-Calendar-style palette; ARGB ints for a raw `CALENDAR_COLOR` /
- * `EVENT_COLOR`. The named entries exist for callers that need one specific
- * hue (the managed special-dates calendars), so they can't drift from the
- * swatches offered in the colour picker.
- */
-object CalendarColorPalette {
-    val Red = 0xFFD50000.toInt()
-    val Orange = 0xFFE67C00.toInt()
-    val Amber = 0xFFF6BF26.toInt()
-    val Green = 0xFF33B679.toInt()
-    val DarkGreen = 0xFF0B8043.toInt()
-    val Blue = 0xFF039BE5.toInt()
-    val Indigo = 0xFF3F51B5.toInt()
-    val Purple = 0xFF8E24AA.toInt()
-    val Graphite = 0xFF616161.toInt()
-
-    /** The full palette, in swatch-row order. */
-    val all: List<Int> = listOf(Red, Orange, Amber, Green, DarkGreen, Blue, Indigo, Purple, Graphite)
-}

app/src/main/java/de/jeanlucmakiola/calendula/data/calendar/CalendarMapper.kt

@@ -24,15 +24,5 @@ internal fun ColumnReader.toCalendarSource(): CalendarSource {
         } else {
             null
         },
-        // A special-dates mirror calendar, recognised by its durable CAL_SYNC2
-        // marker (only meaningful on the local calendars the app owns). This is
-        // the source of truth for the editor lock — independent of any stored
-        // preference that a backup restore could have wiped.
-        isManaged = isLocal &&
-            getString(CalendarProjection.IDX_MANAGED_MARKER)
-                ?.startsWith(CalendarProjection.MANAGED_MARKER_PREFIX) == true,
-        // NULL is treated as syncing — the harmless default.
-        syncsEvents = isNull(CalendarProjection.IDX_SYNC_EVENTS) ||
-            getInt(CalendarProjection.IDX_SYNC_EVENTS) != 0,
     )
 }

app/src/main/java/de/jeanlucmakiola/calendula/data/calendar/CalendarRepository.kt

@@ -16,13 +16,6 @@ interface CalendarRepository {
     fun instances(range: ClosedRange<Instant>): Flow<List<EventInstance>>
     suspend fun eventDetail(eventId: Long): EventDetail
 
-    /**
-     * Events whose title, description or location contains [query], with hidden
-     * calendars removed and newest first. Empty when [query] is blank. Searches
-     * the whole history/future (see [CalendarDataSource.searchEvents]).
-     */
-    suspend fun searchEvents(query: String): List<EventInstance>
-
     /**
      * The event-colour palette a calendar's account publishes; empty when it
      * exposes none (see [CalendarDataSource.eventColorPalette]).
@@ -38,22 +31,11 @@ interface CalendarRepository {
     /** Permanently delete a local calendar the app owns, with all its events. */
     suspend fun deleteCalendar(id: Long)
 
-    /**
-     * Show or hide [ids] device-wide (`Calendars.VISIBLE`), which also gates
-     * their reminders — see [CalendarDataSource.setCalendarVisible]. Written one
-     * at a time, in order; a failure part-way leaves the earlier writes standing.
-     *
-     * Without `WRITE_CALENDAR` the choice is kept app-side instead (see
-     * [de.jeanlucmakiola.calendula.data.prefs.CalendarPrefs.pendingDisabledCalendarIds]).
-     */
-    suspend fun setCalendarsVisible(ids: Collection<Long>, visible: Boolean)
-
     /**
      * Every event of the writable local calendars, ready to serialise into a
      * whole-calendar `.ics` backup (see [CalendarDataSource.exportableEvents]).
-     * [calendarIds] narrows the export to a chosen subset; `null` exports all.
      */
-    suspend fun exportEvents(calendarIds: Set<Long>? = null): List<IcsEvent>
+    suspend fun exportEvents(): List<IcsEvent>
 
     /**
      * Bulk-import parsed `.ics` [events] into [targetCalendarId]. Events whose
@@ -71,20 +53,6 @@ interface CalendarRepository {
      */
     suspend fun updateEvent(eventId: Long, original: EventForm, updated: EventForm)
 
-    /**
-     * Move an event (recurring: the whole series, with its exceptions) to
-     * [targetCalendarId] and apply the [original]→[updated] field edits; returns
-     * the new event's `Events._ID`. Copy+delete under the hood
-     * (see [CalendarDataSource.moveEvent]) — `CALENDAR_ID` can't be updated in
-     * place.
-     */
-    suspend fun moveEvent(
-        eventId: Long,
-        targetCalendarId: Long,
-        original: EventForm,
-        updated: EventForm,
-    ): Long
-
     /**
      * Change a single occurrence of a recurring event (exception row with the
      * form's values); returns the exception's `Events._ID`.

app/src/main/java/de/jeanlucmakiola/calendula/data/calendar/CalendarRepositoryImpl.kt

@@ -1,6 +1,5 @@
 package de.jeanlucmakiola.calendula.data.calendar
 
-import de.jeanlucmakiola.floret.time.toEpochMillis
 import de.jeanlucmakiola.calendula.data.di.IoDispatcher
 import de.jeanlucmakiola.calendula.data.prefs.CalendarPrefs
 import de.jeanlucmakiola.calendula.data.prefs.SettingsPrefs
@@ -15,18 +14,11 @@ import kotlinx.coroutines.CoroutineDispatcher
 import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.flow.MutableSharedFlow
 import kotlinx.coroutines.flow.combine
-import kotlinx.coroutines.flow.distinctUntilChanged
-import kotlinx.coroutines.flow.drop
 import kotlinx.coroutines.flow.first
 import kotlinx.coroutines.flow.flow
 import kotlinx.coroutines.flow.flowOn
-import kotlinx.coroutines.flow.map
-import kotlinx.coroutines.flow.merge
 import kotlinx.coroutines.flow.onStart
-import kotlinx.coroutines.sync.Mutex
-import kotlinx.coroutines.sync.withLock
 import kotlinx.coroutines.withContext
-import java.util.concurrent.atomic.AtomicLong
 import kotlin.time.Instant
 import javax.inject.Inject
 import javax.inject.Singleton
@@ -53,122 +45,39 @@ class CalendarRepositoryImpl @Inject constructor(
         extraBufferCapacity = 1,
     )
 
-    /**
-     * Bumped on every provider notification, so one tick's calendar read can be
-     * shared by everything that needs it (see [calendarsSnapshot]).
-     */
-    private val generation = AtomicLong(0L)
-
     init {
-        dataSource.registerChangeListener {
-            generation.incrementAndGet()
-            ticks.tryEmit(Unit)
-        }
+        dataSource.registerChangeListener { ticks.tryEmit(Unit) }
     }
 
-    /**
-     * Re-query signal for everything filtered by visibility: the provider's own
-     * notifications, plus every change to the pending switch-off set.
-     */
-    private fun visibilityTicks(): Flow<Unit> = merge(
-        ticks.onStart { emit(Unit) },
-        // drop(1): the current value is already covered by the tick above.
-        prefs.pendingDisabledCalendarIds.drop(1).map {},
-    )
-
-    // A switch-off not yet written to the provider is folded into the flag
-    // itself, so every consumer reads one visibility (#75). The reconciler goes
-    // to the data source directly — it needs the provider's own answer.
     override fun calendars(): Flow<List<CalendarSource>> =
-        visibilityTicks().reQuery {
-            val calendars = calendarsSnapshot()
-            val pendingDisabled = prefs.pendingDisabledCalendarIds.first()
-            if (pendingDisabled.isEmpty()) calendars
-            else calendars.map {
-                if (it.id in pendingDisabled) it.copy(isVisibleInSystem = false) else it
-            }
-        }
-            .distinctUntilChanged()
+        ticks
+            .onStart { emit(Unit) }
+            .reQuery { dataSource.calendars() }
             .flowOn(io)
 
-    // Instances are filtered by the system's VISIBLE flag ∪ the switch-offs
-    // still waiting to be written to it ∪ the app-side hidden set from the
-    // filter sheet. [calendars] stays unfiltered so those screens can list and
-    // re-enable invisible calendars.
+    // Instances are filtered by the app-side hidden-calendar set (M3): an event
+    // is dropped whenever the user has hidden its calendar. Re-runs when the
+    // provider ticks *or* the hidden set changes — toggling a calendar in the
+    // filter sheet updates every view immediately. [calendars] stays unfiltered
+    // so the filter sheet can list and re-enable hidden calendars.
     override fun instances(range: ClosedRange<Instant>): Flow<List<EventInstance>> =
         combine(
-            visibilityTicks().reQuery {
-                // All three reads in one pass, so a list of instances is never
-                // filtered against a visibility snapshot from another tick.
-                QueriedInstances(
-                    instances = dataSource.instances(
+            ticks
+                .onStart { emit(Unit) }
+                .reQuery {
+                    dataSource.instances(
                         beginMillis = range.start.toEpochMillis(),
                         endMillis = range.endInclusive.toEpochMillis(),
-                    ),
-                    switchedOffCalendarIds = invisibleCalendarIds() +
-                        prefs.pendingDisabledCalendarIds.first(),
-                )
-            },
+                    )
+                },
             prefs.hiddenCalendarIds,
-        ) { queried, hidden ->
-            val excluded = hidden + queried.switchedOffCalendarIds
-            if (excluded.isEmpty()) queried.instances
-            else queried.instances.filterNot { it.calendarId in excluded }
-        }
-            // Any DataStore edit re-emits the hidden set even when unchanged;
-            // collapse those so views don't re-render for them.
-            .distinctUntilChanged()
-            .flowOn(io)
-
-    /** One instances query plus the visibility it must be filtered against. */
-    private data class QueriedInstances(
-        val instances: List<EventInstance>,
-        val switchedOffCalendarIds: Set<Long>,
-    )
-
-    /** Calendars switched off at system level — hidden, and never reminded about. */
-    private suspend fun invisibleCalendarIds(): Set<Long> = calendarsSnapshot()
-        .filterNot { it.isVisibleInSystem }
-        .mapTo(mutableSetOf()) { it.id }
-
-    private val calendarsLock = Mutex()
-    private var cachedGeneration = -1L
-    private var cachedPending: Set<Long>? = null
-    private var cachedCalendars: List<CalendarSource> = emptyList()
-
-    /**
-     * The calendar list for the current tick, queried once and shared, so every
-     * open view doesn't pay for its own `Calendars` query and all of them see
-     * one snapshot.
-     *
-     * An empty result is never cached — that is what a read without the calendar
-     * permission returns, and the grant itself doesn't notify the provider. The
-     * pending switch-off set keys the cache alongside the tick, because an id
-     * leaves it before the invalidating observer is dispatched.
-     */
-    private suspend fun calendarsSnapshot(): List<CalendarSource> = calendarsLock.withLock {
-        val current = generation.get()
-        val pending = prefs.pendingDisabledCalendarIds.first()
-        if (current != cachedGeneration || pending != cachedPending || cachedCalendars.isEmpty()) {
-            cachedCalendars = dataSource.calendars()
-            cachedGeneration = current
-            cachedPending = pending
-        }
-        cachedCalendars
-    }
+        ) { instances, hidden ->
+            if (hidden.isEmpty()) instances
+            else instances.filterNot { it.calendarId in hidden }
+        }.flowOn(io)
 
     override suspend fun eventDetail(eventId: Long): EventDetail = withContext(io) {
-        dataSource.eventDetail(eventId, allDayReminderTimeMinutes())
-            ?: throw NoSuchEventException(eventId)
-    }
-
-    override suspend fun searchEvents(query: String): List<EventInstance> = withContext(io) {
-        if (query.isBlank()) return@withContext emptyList()
-        val excluded = prefs.hiddenCalendarIds.first() +
-            prefs.pendingDisabledCalendarIds.first() +
-            invisibleCalendarIds()
-        dataSource.searchEvents(query)
-            .let { if (excluded.isEmpty()) it else it.filterNot { e -> e.calendarId in excluded } }
+        dataSource.eventDetail(eventId) ?: throw NoSuchEventException(eventId)
     }
 
     override suspend fun eventColorPalette(calendarId: Long): List<EventColorOption> =
@@ -192,24 +101,7 @@ class CalendarRepositoryImpl @Inject constructor(
     override suspend fun deleteCalendar(id: Long) =
         withContext(io) { dataSource.deleteCalendar(id) }
 
-    override suspend fun setCalendarsVisible(ids: Collection<Long>, visible: Boolean) =
-        withContext(io) {
-            if (dataSource.canWriteCalendars()) {
-                ids.forEach { dataSource.setCalendarVisible(it, visible) }
-                // Nothing of ours is left waiting for the provider once the
-                // write lands (and switching one back on retires its entry).
-                prefs.removePendingDisabledCalendarIds(ids)
-            } else if (visible) {
-                prefs.removePendingDisabledCalendarIds(ids)
-            } else {
-                // Read-only permission: the switch still works, app-side, and
-                // the reconciler flushes it if WRITE_CALENDAR ever arrives.
-                prefs.addPendingDisabledCalendarIds(ids)
-            }
-        }
-
-    override suspend fun exportEvents(calendarIds: Set<Long>?) =
-        withContext(io) { dataSource.exportableEvents(calendarIds) }
+    override suspend fun exportEvents() = withContext(io) { dataSource.exportableEvents() }
 
     override suspend fun importEvents(
         targetCalendarId: Long,
@@ -247,17 +139,6 @@ class CalendarRepositoryImpl @Inject constructor(
         dataSource.deleteEvent(eventId)
     }
 
-    override suspend fun moveEvent(
-        eventId: Long,
-        targetCalendarId: Long,
-        original: EventForm,
-        updated: EventForm,
-    ): Long = withContext(io) {
-        dataSource.moveEvent(
-            eventId, targetCalendarId, original, updated, allDayReminderTimeMinutes(),
-        )
-    }
-
     override suspend fun updateOccurrence(
         eventId: Long,
         beginMillis: Long,

app/src/main/java/de/jeanlucmakiola/calendula/data/calendar/CalendarVisibilityReconciler.kt

@@ -1,113 +0,0 @@
-package de.jeanlucmakiola.calendula.data.calendar
-
-import android.Manifest
-import android.content.Context
-import android.content.pm.PackageManager
-import android.util.Log
-import androidx.core.content.ContextCompat
-import dagger.hilt.EntryPoint
-import dagger.hilt.InstallIn
-import dagger.hilt.android.qualifiers.ApplicationContext
-import dagger.hilt.components.SingletonComponent
-import de.jeanlucmakiola.calendula.data.di.IoDispatcher
-import de.jeanlucmakiola.calendula.data.prefs.CalendarPrefs
-import de.jeanlucmakiola.calendula.domain.calendarVisibilityPlan
-import de.jeanlucmakiola.calendula.domain.hasSystemHiddenCalendars
-import kotlinx.coroutines.CoroutineDispatcher
-import kotlinx.coroutines.flow.first
-import kotlinx.coroutines.withContext
-import kotlin.coroutines.cancellation.CancellationException
-import javax.inject.Inject
-import javax.inject.Singleton
-
-/**
- * Keeps [CalendarPrefs.pendingDisabledCalendarIds] and the system's
- * `Calendars.VISIBLE` in step (#75): the fold-in of the retired app-local
- * visibility model, and the standing drain for switch-offs made without
- * `WRITE_CALENDAR`.
- *
- * Runs on every launch and on every calendar-permission grant; a no-op once the
- * pending set is empty and the notice is settled. Only ever hides (see
- * [calendarVisibilityPlan]); on an upgraded install the first run that sees a
- * system-hidden calendar arms the one-time explanatory notice.
- */
-@Singleton
-class CalendarVisibilityReconciler @Inject constructor(
-    @ApplicationContext private val context: Context,
-    private val dataSource: CalendarDataSource,
-    private val prefs: CalendarPrefs,
-    @IoDispatcher private val io: CoroutineDispatcher,
-) {
-
-    suspend fun run() = withContext(io) {
-        // The DataStore reads sit inside the guard too: this runs in a bare
-        // application-scope coroutine, so an IOException from a damaged
-        // preferences file would take the process down on every launch.
-        try {
-            // Settled ahead of the permission gate, so an update installed
-            // before the first grant can't later look like an upgrade.
-            if (!isUpgradeInstall()) settleNoticeOnce(pending = false)
-            if (!hasPermission(Manifest.permission.READ_CALENDAR)) return@withContext
-            val pending = prefs.pendingDisabledCalendarIds.first()
-            val noticeSettled = prefs.visibilityNoticePending.first() != null
-            if (pending.isEmpty() && noticeSettled) return@withContext
-            val calendars = dataSource.calendars()
-            // Empty means "couldn't read" (null cursor), not "no calendars".
-            // Both decisions below are one-way, so leave them to the next run.
-            if (calendars.isEmpty()) return@withContext
-            settleNoticeOnce(hasSystemHiddenCalendars(calendars, pending))
-            if (pending.isEmpty() || !hasPermission(Manifest.permission.WRITE_CALENDAR)) {
-                return@withContext
-            }
-            val plan = calendarVisibilityPlan(calendars, pending)
-            prefs.removePendingDisabledCalendarIds(plan.settled)
-            // One calendar per write: the provider skips its reminder-alarm
-            // reschedule for anything but a single-id update (see
-            // [CalendarDataSource.setCalendarVisible]).
-            for (id in plan.hide) {
-                dataSource.setCalendarVisible(id, false)
-                prefs.removePendingDisabledCalendarIds(setOf(id))
-            }
-        } catch (e: CancellationException) {
-            throw e
-        } catch (e: Exception) {
-            Log.w(TAG, "Calendar visibility reconcile failed; will retry", e)
-        }
-    }
-
-    /**
-     * Settle the one-time notice: [pending] arms it, false retires it unshown.
-     * Answered once and stored either way, so it can't resurface later.
-     */
-    private suspend fun settleNoticeOnce(pending: Boolean) {
-        if (prefs.visibilityNoticePending.first() != null) return
-        prefs.setVisibilityNoticePending(pending)
-    }
-
-    /**
-     * Whether this install has ever run an earlier version. The notice explains
-     * a behaviour change, so a first install has nothing to announce.
-     */
-    private fun isUpgradeInstall(): Boolean = try {
-        @Suppress("DEPRECATION")
-        val info = context.packageManager.getPackageInfo(context.packageName, 0)
-        info.lastUpdateTime > info.firstInstallTime
-    } catch (e: PackageManager.NameNotFoundException) {
-        Log.w(TAG, "Own package info unavailable; treating as a fresh install", e)
-        false
-    }
-
-    private fun hasPermission(permission: String): Boolean =
-        ContextCompat.checkSelfPermission(context, permission) == PackageManager.PERMISSION_GRANTED
-
-    /** Lets non-injectable entry points (the Application) reach the reconciler. */
-    @EntryPoint
-    @InstallIn(SingletonComponent::class)
-    interface Deps {
-        fun calendarVisibilityReconciler(): CalendarVisibilityReconciler
-    }
-
-    private companion object {
-        const val TAG = "CalendarVisibility"
-    }
-}

app/src/main/java/de/jeanlucmakiola/calendula/data/calendar/EventDetailMapper.kt

@@ -1,6 +1,5 @@
 package de.jeanlucmakiola.calendula.data.calendar
 
-import de.jeanlucmakiola.floret.time.toKotlinInstantFromEpochMillis
 import android.provider.CalendarContract
 import android.util.Log
 import de.jeanlucmakiola.calendula.domain.AccessLevel
@@ -14,7 +13,6 @@ import de.jeanlucmakiola.calendula.domain.EventInstance
 import de.jeanlucmakiola.calendula.domain.EventStatus
 import de.jeanlucmakiola.calendula.domain.Reminder
 import de.jeanlucmakiola.calendula.domain.ReminderMethod
-import de.jeanlucmakiola.calendula.domain.ics.parseRfc2445DurationMillis
 import java.time.Instant
 import java.time.ZoneId
 import java.time.ZoneOffset
@@ -24,34 +22,27 @@ private const val TAG = "EventDetailMapper"
 internal fun ColumnReader.toEventDetailCore(
     attendees: List<Attendee>,
     reminders: List<Reminder>,
-    allDayReminderTimeMinutes: Int,
 ): EventDetail? {
-    // DTSTART is epoch millis in UTC, so a series anchored before 1970 (common
-    // for yearly birthdays/anniversaries synced over CalDAV) is legitimately
-    // negative — only an *absent* DTSTART marks a malformed row worth dropping.
-    // Dropping negatives made every occurrence of such a series un-openable
-    // (the detail loads the ancient series-master DTSTART), see issue #34.
-    if (isNull(EventDetailProjection.IDX_DTSTART)) {
-        Log.w(TAG, "Dropping event with missing dtstart")
-        return null
-    }
     val begin = getLong(EventDetailProjection.IDX_DTSTART)
 
+    if (begin < 0L) {
+        Log.w(TAG, "Dropping event with negative dtstart=$begin")
+        return null
+    }
+
     // Recurring events store DURATION instead of DTEND, so the series row's
-    // DTEND is null — derive the length from DURATION (as SearchMapper and
-    // IcsExportMapper do). Callers that opened a specific occurrence overwrite
-    // both times with the per-occurrence values from CalendarContract.Instances;
-    // a caller that names no occurrence (a bare content://.../events/<id> VIEW
-    // intent, issue #48) keeps this row's own times, so the length has to be
-    // right here or the series renders zero-length. A present-but-backwards
-    // DTEND is malformed, but dropping the row would make the event un-openable
-    // — the same trap as the pre-1970 DTSTART bug above (issue #34): it would
-    // surface as the generic error screen with no way to open the event and fix
-    // it. Clamp to a zero-length event instead (matching SearchMapper).
+    // DTEND is null. Keep the event (end == begin); callers that opened a
+    // specific occurrence supply the real per-occurrence times from
+    // CalendarContract.Instances. Only a present-but-backwards DTEND is malformed.
     val end = if (isNull(EventDetailProjection.IDX_DTEND)) {
-        begin + parseRfc2445DurationMillis(getString(EventDetailProjection.IDX_DURATION))
+        begin
     } else {
-        getLong(EventDetailProjection.IDX_DTEND).coerceAtLeast(begin)
+        val rawEnd = getLong(EventDetailProjection.IDX_DTEND)
+        if (rawEnd < begin) {
+            Log.w(TAG, "Dropping event with dtend=$rawEnd < dtstart=$begin")
+            return null
+        }
+        rawEnd
     }
 
     // Kept raw (no untitled fallback): the detail screen substitutes its own
@@ -90,13 +81,7 @@ internal fun ColumnReader.toEventDetailCore(
     val displayReminders = if (isAllDay) {
         val startDate = Instant.ofEpochMilli(begin).atZone(ZoneOffset.UTC).toLocalDate()
         val zone = ZoneId.systemDefault()
-        reminders.map {
-            it.copy(
-                minutes = fromProviderAllDayMinutes(
-                    it.minutes, startDate, zone, allDayReminderTimeMinutes,
-                ),
-            )
-        }
+        reminders.map { it.copy(minutes = fromProviderAllDayMinutes(it.minutes, startDate, zone)) }
     } else {
         reminders
     }

app/src/main/java/de/jeanlucmakiola/calendula/data/calendar/EventWriteMapper.kt

@@ -6,11 +6,9 @@ import de.jeanlucmakiola.calendula.domain.Availability
 import de.jeanlucmakiola.calendula.domain.EventForm
 import kotlinx.datetime.toJavaLocalDate
 import kotlinx.datetime.toJavaLocalDateTime
-import java.time.Duration
 import java.time.Instant
 import java.time.ZoneId
 import java.time.ZoneOffset
-import java.time.LocalDateTime as JavaLocalDateTime
 
 /** Provider-ready DTSTART / DTEND / EVENT_TIMEZONE for an event write. */
 internal data class EventWriteTimes(
@@ -22,11 +20,7 @@ internal data class EventWriteTimes(
 /**
  * All-day events live at UTC midnights with an exclusive DTEND (the
  * CalendarContract convention — a one-day event ends at the next midnight);
- * timed events resolve their wall-clock values in the form's own
- * [EventForm.timezone], falling back to [zone] (the device) when it doesn't pin
- * one. Passing the device zone is therefore still correct for an unpinned form —
- * but it no longer overrides a pinned event's zone, which is what used to
- * silently re-anchor a foreign-zone event to the device on any time edit.
+ * timed events resolve their wall-clock values in [zone].
  */
 internal fun EventForm.toWriteTimes(zone: ZoneId): EventWriteTimes = if (isAllDay) {
     EventWriteTimes(
@@ -37,92 +31,22 @@ internal fun EventForm.toWriteTimes(zone: ZoneId): EventWriteTimes = if (isAllDa
         timezone = "UTC",
     )
 } else {
-    val writeZone = writeZone(zone)
     EventWriteTimes(
-        dtStartMillis = start.toJavaLocalDateTime().atZone(writeZone).toInstant().toEpochMilli(),
-        dtEndMillis = end.toJavaLocalDateTime().atZone(writeZone).toInstant().toEpochMilli(),
-        timezone = writeZone.id,
+        dtStartMillis = start.toJavaLocalDateTime().atZone(zone).toInstant().toEpochMilli(),
+        dtEndMillis = end.toJavaLocalDateTime().atZone(zone).toInstant().toEpochMilli(),
+        timezone = zone.id,
     )
 }
 
-/**
- * The zone this form's DTSTART is expressed in: UTC for an all-day event (the
- * provider's date anchor), otherwise the form's own pinned zone, falling back to
- * [deviceZone] when it doesn't pin one or pins something the tz database can't
- * parse.
- */
-private fun EventForm.writeZone(deviceZone: ZoneId): ZoneId = if (isAllDay) {
-    ZoneOffset.UTC
-} else {
-    timezone?.let { runCatching { ZoneId.of(it) }.getOrNull() } ?: deviceZone
-}
-
-/**
- * The form's start as a bare wall-clock value — what the user sees on the form,
- * stripped of any zone. All-day events use their date's midnight rather than
- * [EventForm.start]'s placeholder time-of-day, which exists only so switching the
- * event back to timed has something to show.
- */
-private fun EventForm.anchorLocal(): JavaLocalDateTime = if (isAllDay) {
-    start.date.toJavaLocalDate().atStartOfDay()
-} else {
-    start.toJavaLocalDateTime()
-}
-
 /**
  * RFC 2445 duration for a recurring event's row (the provider requires
  * DURATION instead of DTEND when an RRULE is set): whole days for all-day
  * events, seconds otherwise.
  */
-internal fun EventWriteTimes.toRfc2445Duration(isAllDay: Boolean): String =
-    rfc2445Duration(dtEndMillis - dtStartMillis, isAllDay)
-
-/**
- * RFC 2445 duration for a [spanMillis]-long event: whole days for all-day
- * events (the provider's convention), seconds otherwise. Shared by the write
- * paths that need a DURATION but start from a raw millisecond span (the series
- * copy and exception replay of a calendar move) rather than [EventWriteTimes].
- */
-internal fun rfc2445Duration(spanMillis: Long, isAllDay: Boolean): String = if (isAllDay) {
-    "P${spanMillis / MILLIS_PER_DAY}D"
+internal fun EventWriteTimes.toRfc2445Duration(isAllDay: Boolean): String = if (isAllDay) {
+    "P${(dtEndMillis - dtStartMillis) / MILLIS_PER_DAY}D"
 } else {
-    "P${spanMillis / 1_000L}S"
-}
-
-/**
- * Column values for a brand-new Events row: identity, times (the provider's
- * invariant — recurring rows carry RRULE+DURATION and no DTEND, one-off rows
- * carry DTEND), availability/access level and trimmed optional text. Shared by
- * the user-event and managed-event insert paths, which differ only in the
- * [uid] they stamp; colour and attendees are user-event concerns the caller
- * layers on top.
- */
-internal fun buildEventInsertValues(
-    form: EventForm,
-    uid: String,
-    times: EventWriteTimes,
-): Map<String, Any?> = buildMap {
-    put(
-        CalendarContract.Events.CALENDAR_ID,
-        requireNotNull(form.calendarId) { "EventForm.calendarId is required" },
-    )
-    put(CalendarContract.Events.UID_2445, uid)
-    put(CalendarContract.Events.TITLE, form.title.trim())
-    put(CalendarContract.Events.ALL_DAY, if (form.isAllDay) 1 else 0)
-    put(CalendarContract.Events.DTSTART, times.dtStartMillis)
-    if (form.rrule == null) {
-        put(CalendarContract.Events.DTEND, times.dtEndMillis)
-    } else {
-        put(CalendarContract.Events.RRULE, form.rrule)
-        put(CalendarContract.Events.DURATION, times.toRfc2445Duration(form.isAllDay))
-    }
-    put(CalendarContract.Events.EVENT_TIMEZONE, times.timezone)
-    put(CalendarContract.Events.AVAILABILITY, form.availability.toProviderValue())
-    put(CalendarContract.Events.ACCESS_LEVEL, form.accessLevel.toProviderValue())
-    form.location.trim().takeIf { it.isNotEmpty() }
-        ?.let { put(CalendarContract.Events.EVENT_LOCATION, it) }
-    form.description.trim().takeIf { it.isNotEmpty() }
-        ?.let { put(CalendarContract.Events.DESCRIPTION, it) }
+    "P${(dtEndMillis - dtStartMillis) / 1_000L}S"
 }
 
 /**
@@ -135,12 +59,10 @@ internal fun buildEventInsertValues(
  * Time fields travel together (the provider validates them as a unit):
  * - unchanged times, all-day flag and rrule → no time columns at all;
  * - non-recurring result → DTSTART/DTEND, DURATION and RRULE cleared;
- * - recurring result → the *series* DTSTART moves by the same **wall-clock**
- *   shift the user applied to the displayed occurrence and is re-resolved in the
- *   event's zone ([seriesDtStartMillis] is the row's current DTSTART), DURATION
- *   replaces DTEND, RRULE is written. This keeps past occurrences intact when
- *   someone edits a later occurrence's time, and keeps the anchor's time-of-day
- *   stable across a DST boundary or a zone change between the two.
+ * - recurring result → the *series* DTSTART moves by the same delta the user
+ *   applied to the displayed occurrence ([seriesDtStartMillis] is the row's
+ *   current DTSTART), DURATION replaces DTEND, RRULE is written. This keeps
+ *   past occurrences intact when someone edits a later occurrence's time.
  */
 internal fun buildEventUpdateValues(
     original: EventForm,
@@ -167,14 +89,10 @@ internal fun buildEventUpdateValues(
         putAll(eventColorColumns(updated.colorKey, updated.color))
     }
 
-    // A zone change counts as a time change even when the wall-clock is
-    // untouched: the same 09:00 in another zone is a different instant, so
-    // DTSTART has to move with it.
     val timesChanged = updated.start != original.start ||
         updated.end != original.end ||
         updated.isAllDay != original.isAllDay ||
-        updated.rrule != original.rrule ||
-        updated.timezone != original.timezone
+        updated.rrule != original.rrule
     if (!timesChanged) return@buildMap
 
     val newTimes = updated.toWriteTimes(zone)
@@ -186,23 +104,8 @@ internal fun buildEventUpdateValues(
         put(CalendarContract.Events.RRULE, null)
         put(CalendarContract.Events.DURATION, null)
     } else {
-        // Move the series anchor by the *wall-clock* shift the user applied to the
-        // displayed occurrence, then re-resolve it in the event's (possibly new)
-        // zone — never by a millisecond delta. An instant delta silently bakes in
-        // the offset that happened to apply on the edited occurrence's date, which
-        // is a different offset from the series anchor's whenever a DST boundary
-        // sits between them, or whenever the zone itself changed. Working in wall
-        // clock keeps "09:00" meaning 09:00 at both ends.
-        val seriesLocal = Instant.ofEpochMilli(seriesDtStartMillis)
-            .atZone(original.writeZone(zone)).toLocalDateTime()
-        val wallClockShift = Duration.between(original.anchorLocal(), updated.anchorLocal())
-        val shifted = seriesLocal.plus(wallClockShift)
-        // An all-day series anchor must sit on a UTC midnight. A pure day move
-        // already lands there (both ends are midnights), but *switching* a
-        // recurring event to all-day shifts by a time-of-day too, so snap.
-        val newSeriesLocal = if (updated.isAllDay) shifted.toLocalDate().atStartOfDay() else shifted
-        val newSeriesStart = newSeriesLocal.atZone(updated.writeZone(zone))
-        put(CalendarContract.Events.DTSTART, newSeriesStart.toInstant().toEpochMilli())
+        val startDelta = newTimes.dtStartMillis - original.toWriteTimes(zone).dtStartMillis
+        put(CalendarContract.Events.DTSTART, seriesDtStartMillis + startDelta)
         put(CalendarContract.Events.DTEND, null)
         put(CalendarContract.Events.RRULE, updated.rrule)
         put(CalendarContract.Events.DURATION, newTimes.toRfc2445Duration(updated.isAllDay))
@@ -215,14 +118,8 @@ internal fun buildEventUpdateValues(
  * provider clone the series row and apply these on top. Unlike the series
  * update there is no dirty check — the exception is a fresh row, so every
  * form-backed column is written (empty optionals as explicit NULLs, since the
- * clone starts from the parent's values).
- *
- * The occurrence's length travels as DURATION, never DTEND: the provider
- * rejects DTEND on an exception outright (`CalendarProvider2`:
- * "Exceptions can't overwrite dtend") and derives the instance end from
- * DTSTART + DURATION itself, clearing the inherited RRULE in the process. This
- * matches how AOSP Calendar/Etar write exceptions; sending DTEND is what made
- * "only this event" fail on-device (Codeberg #16).
+ * clone starts from the parent's values). An exception is a single event:
+ * DTEND, never RRULE/DURATION.
  */
 internal fun buildOccurrenceExceptionValues(
     form: EventForm,
@@ -234,7 +131,7 @@ internal fun buildOccurrenceExceptionValues(
     put(CalendarContract.Events.TITLE, form.title.trim())
     put(CalendarContract.Events.ALL_DAY, if (form.isAllDay) 1 else 0)
     put(CalendarContract.Events.DTSTART, times.dtStartMillis)
-    put(CalendarContract.Events.DURATION, times.toRfc2445Duration(form.isAllDay))
+    put(CalendarContract.Events.DTEND, times.dtEndMillis)
     put(CalendarContract.Events.EVENT_TIMEZONE, times.timezone)
     put(CalendarContract.Events.AVAILABILITY, form.availability.toProviderValue())
     put(CalendarContract.Events.ACCESS_LEVEL, form.accessLevel.toProviderValue())
@@ -243,215 +140,6 @@ internal fun buildOccurrenceExceptionValues(
     putAll(eventColorColumns(form.colorKey, form.color))
 }
 
-/**
- * Raw provider snapshot of a master/one-off Events row, enough to re-insert it
- * verbatim on another calendar (a calendar move is copy+delete — `CALENDAR_ID`
- * is sync-adapter-owned and can't be updated in place). Recurring rows carry
- * [rrule]/[duration] (and any [rdate]/[exdate]) with a null [dtEndMillis];
- * one-off rows carry [dtEndMillis]. Colour is deliberately absent: a raw
- * `EVENT_COLOR` or account-scoped `EVENT_COLOR_KEY` may be invalid on the target
- * account, so the moved copy inherits the target calendar's colour instead.
- */
-internal data class MasterEventSnapshot(
-    val title: String,
-    val isAllDay: Boolean,
-    val dtStartMillis: Long,
-    val dtEndMillis: Long?,
-    val duration: String?,
-    val rrule: String?,
-    val rdate: String?,
-    val exdate: String?,
-    val timezone: String?,
-    val availability: Int,
-    val accessLevel: Int,
-    val status: Int?,
-    val location: String?,
-    val description: String?,
-)
-
-/**
- * Column values re-creating [snapshot] as a fresh Events row on
- * [targetCalendarId], keeping its [uid] so `.ics` backup dedup and sync identity
- * survive the move. Preserves the recurrence skeleton (DTSTART/RRULE/DURATION,
- * RDATE/EXDATE) so the series' generated instances — and therefore the
- * ORIGINAL_INSTANCE_TIME of every copied exception — line up unchanged. The
- * caller layers the user's field edits on top with a normal series update.
- */
-internal fun buildMovedMasterValues(
-    snapshot: MasterEventSnapshot,
-    targetCalendarId: Long,
-    uid: String,
-): Map<String, Any?> = buildMap {
-    put(CalendarContract.Events.CALENDAR_ID, targetCalendarId)
-    put(CalendarContract.Events.UID_2445, uid)
-    put(CalendarContract.Events.TITLE, snapshot.title)
-    put(CalendarContract.Events.ALL_DAY, if (snapshot.isAllDay) 1 else 0)
-    put(CalendarContract.Events.DTSTART, snapshot.dtStartMillis)
-    put(CalendarContract.Events.EVENT_TIMEZONE, snapshot.timezone ?: "UTC")
-    if (snapshot.rrule != null) {
-        put(CalendarContract.Events.RRULE, snapshot.rrule)
-        snapshot.rdate?.takeIf { it.isNotBlank() }?.let { put(CalendarContract.Events.RDATE, it) }
-        snapshot.exdate?.takeIf { it.isNotBlank() }?.let { put(CalendarContract.Events.EXDATE, it) }
-        put(CalendarContract.Events.DURATION, snapshot.movedDuration())
-    } else {
-        snapshot.dtEndMillis?.let { put(CalendarContract.Events.DTEND, it) }
-    }
-    put(CalendarContract.Events.AVAILABILITY, snapshot.availability)
-    put(CalendarContract.Events.ACCESS_LEVEL, snapshot.accessLevel)
-    snapshot.status?.let { put(CalendarContract.Events.STATUS, it) }
-    put(CalendarContract.Events.EVENT_LOCATION, snapshot.location?.ifEmpty { null })
-    put(CalendarContract.Events.DESCRIPTION, snapshot.description?.ifEmpty { null })
-}
-
-/** The recurring copy's DURATION: its own if present, else derived from DTEND. */
-private fun MasterEventSnapshot.movedDuration(): String = duration?.takeIf { it.isNotBlank() }
-    ?: rfc2445Duration((dtEndMillis ?: dtStartMillis) - dtStartMillis, isAllDay)
-
-/**
- * Raw provider snapshot of one exception row of a recurring series (a modified
- * or cancelled occurrence, `ORIGINAL_ID` = the series). [originalInstanceMillis]
- * ties it to the occurrence it overrides; a [isCancelled] row only needs that.
- */
-internal data class ExceptionRowSnapshot(
-    val exceptionEventId: Long,
-    val originalInstanceMillis: Long,
-    val isCancelled: Boolean,
-    val status: Int?,
-    val title: String,
-    val isAllDay: Boolean,
-    val dtStartMillis: Long,
-    val dtEndMillis: Long?,
-    val duration: String?,
-    val timezone: String?,
-    val availability: Int,
-    val accessLevel: Int,
-    val location: String?,
-    val description: String?,
-)
-
-/**
- * Column values replaying a *modified* occurrence [snapshot] against the moved
- * series via `CONTENT_EXCEPTION_URI`. Like [buildOccurrenceExceptionValues] the
- * length travels as DURATION (the provider rejects DTEND on an exception). A
- * cancelled occurrence is written separately (ORIGINAL_INSTANCE_TIME +
- * STATUS_CANCELED) — this builder is only for the modified case.
- */
-internal fun buildCopiedExceptionValues(snapshot: ExceptionRowSnapshot): Map<String, Any?> =
-    buildMap {
-        put(CalendarContract.Events.ORIGINAL_INSTANCE_TIME, snapshot.originalInstanceMillis)
-        put(CalendarContract.Events.TITLE, snapshot.title)
-        put(CalendarContract.Events.ALL_DAY, if (snapshot.isAllDay) 1 else 0)
-        put(CalendarContract.Events.DTSTART, snapshot.dtStartMillis)
-        put(
-            CalendarContract.Events.DURATION,
-            snapshot.duration?.takeIf { it.isNotBlank() }
-                ?: rfc2445Duration(
-                    (snapshot.dtEndMillis ?: snapshot.dtStartMillis) - snapshot.dtStartMillis,
-                    snapshot.isAllDay,
-                ),
-        )
-        put(CalendarContract.Events.EVENT_TIMEZONE, snapshot.timezone ?: "UTC")
-        put(CalendarContract.Events.AVAILABILITY, snapshot.availability)
-        put(CalendarContract.Events.ACCESS_LEVEL, snapshot.accessLevel)
-        put(CalendarContract.Events.EVENT_LOCATION, snapshot.location?.ifEmpty { null })
-        put(CalendarContract.Events.DESCRIPTION, snapshot.description?.ifEmpty { null })
-        snapshot.status?.let { put(CalendarContract.Events.STATUS, it) }
-    }
-
-/**
- * Column values for a *cancelled*-occurrence exception row ("delete only this
- * event"): inserting them at `Events.CONTENT_EXCEPTION_URI/<id>` makes the
- * provider clone the series row and cancel exactly this one instance.
- *
- * As with [buildOccurrenceExceptionValues], the occurrence must be anchored with
- * DTSTART + DURATION so the provider derives a single instance and clears the
- * inherited RRULE. A STATUS-only cancel skips that: the clone keeps the RRULE, so
- * the *whole series* is cancelled and every other occurrence disappears
- * (Codeberg #47). The occurrence's length/zone come straight from the series row
- * — cancelling never changes them.
- */
-internal fun buildOccurrenceCancelValues(
-    originalInstanceMillis: Long,
-    dtStartMillis: Long,
-    duration: String?,
-    timezone: String?,
-    allDay: Int,
-): Map<String, Any?> = buildMap {
-    put(CalendarContract.Events.ORIGINAL_INSTANCE_TIME, originalInstanceMillis)
-    put(CalendarContract.Events.DTSTART, dtStartMillis)
-    put(CalendarContract.Events.DURATION, duration)
-    put(CalendarContract.Events.EVENT_TIMEZONE, timezone)
-    put(CalendarContract.Events.ALL_DAY, allDay)
-    put(CalendarContract.Events.STATUS, CalendarContract.Events.STATUS_CANCELED)
-}
-
-/**
- * The master-row columns that drop the occurrence at [occurrenceMillis] from a
- * series by adding it to `EXDATE` — the path for events that have **no
- * `_sync_id`** (a local calendar, or a synced event not yet pushed).
- *
- * A cancelled exception row (see [buildOccurrenceCancelValues]) only attaches to
- * its parent through `ORIGINAL_SYNC_ID`. Without a `_sync_id` the link never
- * forms, and the provider's expansion of the *parent* collapses — every other
- * occurrence disappears (Codeberg #47, reproduced on a local calendar). EXDATE
- * needs no link, and is the canonical iCalendar way to drop an occurrence, so a
- * sync adapter carries it upstream unchanged if the calendar later syncs.
- *
- * The whole time/recurrence set is rewritten alongside it on purpose. The
- * provider does **not** treat an EXDATE-only update as a recurrence change: it
- * leaves the expanded `Instances` rows untouched, so the occurrence stays visible
- * (and, symmetrically, un-excluding one leaves it hidden). Writing DTSTART with
- * it forces the re-expansion — but DTSTART *alone* makes the provider recompute
- * `lastDate` as if the event were a single instance, collapsing the series to its
- * first occurrence. Passing DTSTART + DURATION + RRULE + zone together is what
- * re-expands it correctly. All observed on a Pixel; see the #47 notes.
- *
- * EXDATE is a comma-separated list, so an existing one is appended to (a repeat
- * of the same occurrence is folded away). All-day series take the `VALUE=DATE`
- * form (`yyyyMMdd`), timed ones the UTC date-time form (`yyyyMMddTHHmmssZ`).
- */
-internal fun buildOccurrenceExdateValues(
-    existingExdate: String?,
-    occurrenceMillis: Long,
-    dtStartMillis: Long,
-    rrule: String?,
-    duration: String?,
-    timezone: String?,
-    allDay: Int,
-): Map<String, Any?> {
-    val stamp = formatExdateStamp(occurrenceMillis, isAllDay = allDay != 0)
-    val existing = existingExdate?.split(',')
-        ?.map { it.trim() }
-        ?.filter { it.isNotEmpty() }
-        .orEmpty()
-    val merged = (existing + stamp).distinct().joinToString(",")
-    return mapOf(
-        CalendarContract.Events.EXDATE to merged,
-        CalendarContract.Events.DTSTART to dtStartMillis,
-        CalendarContract.Events.RRULE to rrule,
-        CalendarContract.Events.DURATION to duration,
-        CalendarContract.Events.EVENT_TIMEZONE to timezone,
-        CalendarContract.Events.ALL_DAY to allDay,
-    )
-}
-
-/**
- * One EXDATE entry for the occurrence starting at [occurrenceMillis]. Both forms
- * are UTC: the provider stores an all-day DTSTART at UTC midnight, so its date
- * reads off the UTC calendar day.
- */
-private fun formatExdateStamp(occurrenceMillis: Long, isAllDay: Boolean): String {
-    val utc = Instant.ofEpochMilli(occurrenceMillis).atZone(ZoneOffset.UTC)
-    return if (isAllDay) {
-        "%04d%02d%02d".format(utc.year, utc.monthValue, utc.dayOfMonth)
-    } else {
-        "%04d%02d%02dT%02d%02d%02dZ".format(
-            utc.year, utc.monthValue, utc.dayOfMonth,
-            utc.hour, utc.minute, utc.second,
-        )
-    }
-}
-
 /**
  * The `EVENT_COLOR` / `EVENT_COLOR_KEY` columns for a colour selection. A
  * [colorKey] writes the key alone (the provider derives `EVENT_COLOR` from the

app/src/main/java/de/jeanlucmakiola/calendula/data/calendar/IcsExportMapper.kt

@@ -1,6 +1,5 @@
 package de.jeanlucmakiola.calendula.data.calendar
 
-import de.jeanlucmakiola.floret.time.toKotlinInstantFromEpochMillis
 import de.jeanlucmakiola.calendula.domain.EventStatus
 import de.jeanlucmakiola.calendula.domain.ics.IcsEvent
 import de.jeanlucmakiola.calendula.domain.ics.deriveIcsUid

app/src/main/java/de/jeanlucmakiola/calendula/data/calendar/InstanceMapper.kt

@@ -1,6 +1,5 @@
 package de.jeanlucmakiola.calendula.data.calendar
 
-import de.jeanlucmakiola.floret.time.toKotlinInstantFromEpochMillis
 import android.util.Log
 import de.jeanlucmakiola.calendula.domain.EventInstance
 

app/src/main/java/de/jeanlucmakiola/calendula/data/calendar/ManagedCalendar.kt

@@ -1,24 +0,0 @@
-package de.jeanlucmakiola.calendula.data.calendar
-
-import de.jeanlucmakiola.calendula.domain.contacts.SpecialDateType
-
-/**
- * One of the app's special-dates calendars, discovered by the marker stamped in
- * its `CAL_SYNC2` column — so the mirror can re-adopt its calendars even if the
- * stored ids in preferences were lost (e.g. an app-data wipe).
- */
-data class ManagedCalendarRow(val id: Long, val type: SpecialDateType)
-
-/**
- * A managed event as read back for the sync diff. [uid] is the deterministic
- * `Events.UID_2445` (`contact-<type>:<lookupKey>@calendula`) the mirror keys on;
- * [title], [dtStartMillis] and [rrule] are the managed columns compared against
- * the desired state to decide whether a targeted update is needed.
- */
-data class ManagedEventRow(
-    val eventId: Long,
-    val uid: String,
-    val title: String,
-    val dtStartMillis: Long,
-    val rrule: String?,
-)

app/src/main/java/de/jeanlucmakiola/calendula/data/calendar/Projections.kt

@@ -15,18 +15,9 @@ internal object CalendarProjection {
         // own we stash one in CAL_SYNC1 (synced rows put their sync token here,
         // so the mapper only reads it for local calendars).
         DESCRIPTION_COLUMN,
-        // The special-dates marker (CAL_SYNC2) — the durable identity the app
-        // uses to recognise its own managed calendars, independent of any
-        // stored preference id (which a backup restore / data wipe can lose).
-        MANAGED_MARKER_COLUMN,
-        CalendarContract.Calendars.SYNC_EVENTS,
     )
 
     const val DESCRIPTION_COLUMN: String = CalendarContract.Calendars.CAL_SYNC1
-    const val MANAGED_MARKER_COLUMN: String = CalendarContract.Calendars.CAL_SYNC2
-
-    /** Namespace prefix of every managed-calendar [MANAGED_MARKER_COLUMN] value. */
-    const val MANAGED_MARKER_PREFIX = "calendula.specialdates"
 
     const val IDX_ID = 0
     const val IDX_DISPLAY_NAME = 1
@@ -36,8 +27,6 @@ internal object CalendarProjection {
     const val IDX_VISIBLE = 5
     const val IDX_ACCESS_LEVEL = 6
     const val IDX_DESCRIPTION = 7
-    const val IDX_MANAGED_MARKER = 8
-    const val IDX_SYNC_EVENTS = 9
 }
 
 internal object InstanceProjection {
@@ -86,9 +75,6 @@ internal object EventDetailProjection {
         CalendarContract.Events.EVENT_TIMEZONE,
         CalendarContract.Events.SELF_ATTENDEE_STATUS,
         CalendarContract.Events.EVENT_COLOR_KEY,
-        // Recurring rows carry DURATION instead of DTEND; the detail screen
-        // needs it to render a series opened without a named occurrence.
-        CalendarContract.Events.DURATION,
     )
 
     const val IDX_EVENT_ID = 0
@@ -109,7 +95,6 @@ internal object EventDetailProjection {
     const val IDX_EVENT_TIMEZONE = 15
     const val IDX_SELF_ATTENDEE_STATUS = 16
     const val IDX_EVENT_COLOR_KEY = 17
-    const val IDX_DURATION = 18
 }
 
 /**
@@ -154,124 +139,6 @@ internal object EventExportProjection {
     const val IDX_CALENDAR_ID = 13
 }
 
-/**
- * Master/one-off Events rows matched by a full-text search. Like
- * [EventExportProjection] it reads the Events table directly (so the search is
- * unbounded in time), carrying DURATION for recurring rows that have no DTEND.
- * Colour folds the calendar fallback like [InstanceProjection].
- */
-internal object SearchProjection {
-    val COLUMNS: Array<String> = arrayOf(
-        CalendarContract.Events._ID,
-        CalendarContract.Events.CALENDAR_ID,
-        CalendarContract.Events.TITLE,
-        CalendarContract.Events.DTSTART,
-        CalendarContract.Events.DTEND,
-        CalendarContract.Events.DURATION,
-        CalendarContract.Events.ALL_DAY,
-        CalendarContract.Events.EVENT_COLOR,
-        CalendarContract.Events.CALENDAR_COLOR,
-        CalendarContract.Events.EVENT_LOCATION,
-        // Recurrence markers: a non-empty RRULE or RDATE means the result should
-        // display its nearest occurrence, not the series-start DTSTART.
-        CalendarContract.Events.RRULE,
-        CalendarContract.Events.RDATE,
-    )
-
-    const val IDX_ID = 0
-    const val IDX_CALENDAR_ID = 1
-    const val IDX_TITLE = 2
-    const val IDX_DTSTART = 3
-    const val IDX_DTEND = 4
-    const val IDX_DURATION = 5
-    const val IDX_ALL_DAY = 6
-    const val IDX_EVENT_COLOR = 7
-    const val IDX_CALENDAR_COLOR = 8
-    const val IDX_LOCATION = 9
-    const val IDX_RRULE = 10
-    const val IDX_RDATE = 11
-}
-
-/**
- * The master/one-off Events row of an event about to be moved to another
- * calendar, read for a verbatim re-insert (see [MasterEventSnapshot]). Carries
- * the full recurrence skeleton (RRULE/DURATION, RDATE/EXDATE) so the moved copy
- * generates the same instances, and `UID_2445` so identity survives the move.
- */
-internal object MoveMasterProjection {
-    val COLUMNS: Array<String> = arrayOf(
-        CalendarContract.Events.UID_2445,
-        CalendarContract.Events.TITLE,
-        CalendarContract.Events.DTSTART,
-        CalendarContract.Events.DTEND,
-        CalendarContract.Events.DURATION,
-        CalendarContract.Events.RRULE,
-        CalendarContract.Events.RDATE,
-        CalendarContract.Events.EXDATE,
-        CalendarContract.Events.EVENT_TIMEZONE,
-        CalendarContract.Events.ALL_DAY,
-        CalendarContract.Events.AVAILABILITY,
-        CalendarContract.Events.ACCESS_LEVEL,
-        CalendarContract.Events.STATUS,
-        CalendarContract.Events.EVENT_LOCATION,
-        CalendarContract.Events.DESCRIPTION,
-    )
-
-    const val IDX_UID = 0
-    const val IDX_TITLE = 1
-    const val IDX_DTSTART = 2
-    const val IDX_DTEND = 3
-    const val IDX_DURATION = 4
-    const val IDX_RRULE = 5
-    const val IDX_RDATE = 6
-    const val IDX_EXDATE = 7
-    const val IDX_EVENT_TIMEZONE = 8
-    const val IDX_ALL_DAY = 9
-    const val IDX_AVAILABILITY = 10
-    const val IDX_ACCESS_LEVEL = 11
-    const val IDX_STATUS = 12
-    const val IDX_LOCATION = 13
-    const val IDX_DESCRIPTION = 14
-}
-
-/**
- * The exception rows of a recurring series (`ORIGINAL_ID` = the series), read to
- * replay them against a moved copy (see [ExceptionRowSnapshot]). Both modified
- * occurrences and cancellations (`STATUS_CANCELED`) are read; the query filters
- * `DELETED = 0` so provider tombstones aren't replayed.
- */
-internal object ExceptionProjection {
-    val COLUMNS: Array<String> = arrayOf(
-        CalendarContract.Events._ID,
-        CalendarContract.Events.ORIGINAL_INSTANCE_TIME,
-        CalendarContract.Events.STATUS,
-        CalendarContract.Events.TITLE,
-        CalendarContract.Events.ALL_DAY,
-        CalendarContract.Events.DTSTART,
-        CalendarContract.Events.DTEND,
-        CalendarContract.Events.DURATION,
-        CalendarContract.Events.EVENT_TIMEZONE,
-        CalendarContract.Events.AVAILABILITY,
-        CalendarContract.Events.ACCESS_LEVEL,
-        CalendarContract.Events.EVENT_LOCATION,
-        CalendarContract.Events.DESCRIPTION,
-    )
-
-    const val IDX_ID = 0
-    const val IDX_ORIGINAL_INSTANCE_TIME = 1
-    const val IDX_STATUS = 2
-    const val IDX_TITLE = 3
-    const val IDX_ALL_DAY = 4
-    const val IDX_DTSTART = 5
-    const val IDX_DTEND = 6
-    const val IDX_DURATION = 7
-    const val IDX_EVENT_TIMEZONE = 8
-    const val IDX_AVAILABILITY = 9
-    const val IDX_ACCESS_LEVEL = 10
-    const val IDX_LOCATION = 11
-    const val IDX_DESCRIPTION = 12
-}
-
 internal object AttendeeProjection {
     val COLUMNS: Array<String> = arrayOf(
         CalendarContract.Attendees.ATTENDEE_NAME,

app/src/main/java/de/jeanlucmakiola/calendula/data/calendar/SearchMapper.kt

@@ -1,44 +0,0 @@
-package de.jeanlucmakiola.calendula.data.calendar
-
-import de.jeanlucmakiola.floret.time.toKotlinInstantFromEpochMillis
-import de.jeanlucmakiola.calendula.domain.EventInstance
-import de.jeanlucmakiola.calendula.domain.ics.parseRfc2445DurationMillis
-
-/**
- * Map an Events-table row (a search hit) to an [EventInstance]. Unlike the
- * Instances query this reads the series master, so there is no instance id (the
- * event id stands in as the list key) and recurring rows carry DURATION instead
- * of DTEND — reconstruct the end the same way the `.ics` export does.
- */
-internal fun ColumnReader.toSearchResult(): EventInstance? {
-    // A pre-1970 series anchor is a legitimately negative epoch-millis DTSTART
-    // (see EventDetailMapper / issue #34); drop only a genuinely absent one, so
-    // long-running birthdays/anniversaries still surface in search.
-    if (isNull(SearchProjection.IDX_DTSTART)) return null
-    val dtStart = getLong(SearchProjection.IDX_DTSTART)
-    val end = when {
-        !isNull(SearchProjection.IDX_DTEND) -> getLong(SearchProjection.IDX_DTEND)
-        else -> dtStart + parseRfc2445DurationMillis(getString(SearchProjection.IDX_DURATION))
-    }.coerceAtLeast(dtStart)
-
-    val rawTitle = getString(SearchProjection.IDX_TITLE)
-    val title = if (rawTitle.isNullOrEmpty()) Fallbacks.UNTITLED_EVENT else rawTitle
-    val color = if (isNull(SearchProjection.IDX_EVENT_COLOR)) {
-        getInt(SearchProjection.IDX_CALENDAR_COLOR)
-    } else {
-        getInt(SearchProjection.IDX_EVENT_COLOR)
-    }
-    val eventId = getLong(SearchProjection.IDX_ID)
-
-    return EventInstance(
-        instanceId = eventId,
-        eventId = eventId,
-        calendarId = getLong(SearchProjection.IDX_CALENDAR_ID),
-        title = title,
-        start = dtStart.toKotlinInstantFromEpochMillis(),
-        end = end.toKotlinInstantFromEpochMillis(),
-        isAllDay = getInt(SearchProjection.IDX_ALL_DAY) != 0,
-        color = color,
-        location = getString(SearchProjection.IDX_LOCATION),
-    )
-}

app/src/main/java/de/jeanlucmakiola/calendula/data/calendar/TimeBridge.kt

@@ -0,0 +1,7 @@
+package de.jeanlucmakiola.calendula.data.calendar
+
+import kotlin.time.Instant
+
+fun Long.toKotlinInstantFromEpochMillis(): Instant = Instant.fromEpochMilliseconds(this)
+
+fun Instant.toEpochMillis(): Long = toEpochMilliseconds()

app/src/main/java/de/jeanlucmakiola/calendula/data/contacts/AndroidSpecialDatesCalendarSpec.kt

@@ -1,42 +0,0 @@
-package de.jeanlucmakiola.calendula.data.contacts
-
-import android.content.Context
-import dagger.hilt.android.qualifiers.ApplicationContext
-import de.jeanlucmakiola.calendula.R
-import de.jeanlucmakiola.calendula.data.calendar.CalendarColorPalette
-import de.jeanlucmakiola.calendula.domain.contacts.SpecialDateType
-import javax.inject.Inject
-import javax.inject.Singleton
-
-/**
- * Resolves the localized calendar names/templates and per-type colours the
- * mirror creates its calendars with. The colours are picked from the shared
- * palette so managed calendars look native alongside user calendars.
- */
-@Singleton
-class AndroidSpecialDatesCalendarSpec @Inject constructor(
-    @ApplicationContext private val context: Context,
-) : SpecialDatesCalendarSpec {
-
-    override fun displayName(type: SpecialDateType): String = context.getString(
-        when (type) {
-            SpecialDateType.Birthday -> R.string.special_dates_calendar_birthday
-            SpecialDateType.Anniversary -> R.string.special_dates_calendar_anniversary
-            SpecialDateType.Custom -> R.string.special_dates_calendar_custom
-        },
-    )
-
-    override fun defaultTitleTemplate(type: SpecialDateType): String = context.getString(
-        when (type) {
-            SpecialDateType.Birthday -> R.string.special_dates_default_title_birthday
-            SpecialDateType.Anniversary -> R.string.special_dates_default_title_anniversary
-            SpecialDateType.Custom -> R.string.special_dates_default_title_custom
-        },
-    )
-
-    override fun color(type: SpecialDateType): Int = when (type) {
-        SpecialDateType.Birthday -> CalendarColorPalette.Purple
-        SpecialDateType.Anniversary -> CalendarColorPalette.Red
-        SpecialDateType.Custom -> CalendarColorPalette.Blue
-    }
-}

app/src/main/java/de/jeanlucmakiola/calendula/data/contacts/ContactSpecialDatesDataSource.kt

@@ -1,105 +0,0 @@
-package de.jeanlucmakiola.calendula.data.contacts
-
-import android.Manifest
-import android.content.Context
-import android.content.pm.PackageManager
-import android.provider.ContactsContract
-import android.provider.ContactsContract.CommonDataKinds.Event
-import android.util.Log
-import androidx.core.content.ContextCompat
-import dagger.hilt.android.qualifiers.ApplicationContext
-import de.jeanlucmakiola.calendula.domain.contacts.ContactSpecialDate
-import de.jeanlucmakiola.calendula.domain.contacts.SpecialDateType
-import de.jeanlucmakiola.calendula.domain.contacts.managedUid
-import de.jeanlucmakiola.calendula.domain.contacts.parseContactEventDate
-import javax.inject.Inject
-import javax.inject.Singleton
-
-/**
- * Reads the dated `Event` rows (birthdays, anniversaries, custom dates) of the
- * device's contacts. Read-only and offline — the one-way source for the
- * special-dates mirror. Requires `READ_CONTACTS`; returns an empty list when
- * the permission is absent so the sync can degrade to a stalled state rather
- * than crash.
- */
-interface ContactSpecialDatesDataSource {
-    fun hasPermission(): Boolean
-
-    /** All usable contact special-dates, deduplicated per contact and type. */
-    fun readSpecialDates(): List<ContactSpecialDate>
-}
-
-/** Whether `READ_CONTACTS` is granted — the gate for every contacts read. */
-fun Context.hasContactsPermission(): Boolean =
-    ContextCompat.checkSelfPermission(this, Manifest.permission.READ_CONTACTS) ==
-        PackageManager.PERMISSION_GRANTED
-
-/** Map a `ContactsContract` event `TYPE` to our calendar bucket. */
-internal fun specialDateTypeForRawEventType(type: Int): SpecialDateType = when (type) {
-    Event.TYPE_BIRTHDAY -> SpecialDateType.Birthday
-    Event.TYPE_ANNIVERSARY -> SpecialDateType.Anniversary
-    else -> SpecialDateType.Custom
-}
-
-@Singleton
-class AndroidContactSpecialDatesDataSource @Inject constructor(
-    @ApplicationContext private val context: Context,
-) : ContactSpecialDatesDataSource {
-
-    override fun hasPermission(): Boolean = context.hasContactsPermission()
-
-    override fun readSpecialDates(): List<ContactSpecialDate> {
-        if (!hasPermission()) return emptyList()
-        val resolver = context.contentResolver
-        // A contact can carry the same date more than once (multiple raw contacts
-        // under one aggregate); dedup on the mirror's reconciliation key so exact
-        // duplicates collapse while genuinely distinct dates (two custom events on
-        // one contact) are all kept. Ordered by Data._ID so which of two truly
-        // conflicting rows wins is stable across syncs (no event ping-pong).
-        val seen = HashSet<String>()
-        val result = ArrayList<ContactSpecialDate>()
-        runCatching {
-            resolver.query(
-                ContactsContract.Data.CONTENT_URI,
-                PROJECTION,
-                "${ContactsContract.Data.MIMETYPE} = ?",
-                arrayOf(Event.CONTENT_ITEM_TYPE),
-                "${ContactsContract.Data._ID} ASC",
-            )?.use { c ->
-                val idxDate = c.getColumnIndexOrThrow(Event.START_DATE)
-                val idxType = c.getColumnIndexOrThrow(Event.TYPE)
-                val idxLabel = c.getColumnIndexOrThrow(Event.LABEL)
-                val idxLookup = c.getColumnIndexOrThrow(ContactsContract.Data.LOOKUP_KEY)
-                val idxName = c.getColumnIndexOrThrow(ContactsContract.Data.DISPLAY_NAME_PRIMARY)
-                while (c.moveToNext()) {
-                    val lookup = c.getString(idxLookup)?.takeIf { it.isNotEmpty() } ?: continue
-                    val parts = parseContactEventDate(c.getString(idxDate)) ?: continue
-                    val type = specialDateTypeForRawEventType(c.getInt(idxType))
-                    val date = ContactSpecialDate(
-                        lookupKey = lookup,
-                        displayName = c.getString(idxName)?.trim().orEmpty(),
-                        type = type,
-                        month = parts.month,
-                        day = parts.day,
-                        year = parts.year,
-                        label = c.getString(idxLabel)?.takeIf { it.isNotBlank() },
-                    )
-                    if (seen.add(date.managedUid())) result += date
-                }
-            }
-        }.onFailure { Log.w(TAG, "Reading contact special-dates failed", it) }
-        return result
-    }
-
-    private companion object {
-        const val TAG = "ContactSpecialDates"
-
-        val PROJECTION = arrayOf(
-            ContactsContract.Data.LOOKUP_KEY,
-            ContactsContract.Data.DISPLAY_NAME_PRIMARY,
-            Event.START_DATE,
-            Event.TYPE,
-            Event.LABEL,
-        )
-    }
-}

app/src/main/java/de/jeanlucmakiola/calendula/data/contacts/SpecialDatesScheduler.kt

@@ -1,135 +0,0 @@
-package de.jeanlucmakiola.calendula.data.contacts
-
-import android.content.Context
-import android.util.Log
-import androidx.work.CoroutineWorker
-import androidx.work.Data
-import androidx.work.ExistingPeriodicWorkPolicy
-import androidx.work.ExistingWorkPolicy
-import androidx.work.OneTimeWorkRequestBuilder
-import androidx.work.PeriodicWorkRequestBuilder
-import androidx.work.WorkManager
-import androidx.work.WorkerParameters
-import dagger.hilt.EntryPoint
-import dagger.hilt.InstallIn
-import dagger.hilt.android.EntryPointAccessors
-import dagger.hilt.components.SingletonComponent
-import de.jeanlucmakiola.calendula.data.prefs.SettingsPrefs
-import de.jeanlucmakiola.calendula.data.prefs.SpecialDatesStalledReason
-import kotlinx.coroutines.flow.first
-import java.util.concurrent.TimeUnit
-
-/**
- * Schedules the contact special-dates mirror. Birthdays change rarely, so this
- * is deliberately cheap: a **daily** periodic reconcile, plus an immediate run
- * on enable / "Sync now" and a debounced one when the app is foregrounded. No
- * ContentObserver — it would need the process alive and buys almost nothing for
- * once-a-year events. Everything stays offline (local contacts → local calendar).
- */
-object SpecialDatesScheduler {
-
-    private const val WORK_NAME = "special-dates-sync"
-    private const val WORK_NAME_NOW = "special-dates-sync-now"
-    private const val WORK_NAME_FOREGROUND = "special-dates-sync-foreground"
-    private const val KEY_FOREGROUND = "foreground"
-
-    /** Enqueue (or cancel) the daily periodic reconcile to match [enabled]. */
-    fun apply(context: Context, enabled: Boolean) {
-        val workManager = WorkManager.getInstance(context)
-        if (!enabled) {
-            workManager.cancelUniqueWork(WORK_NAME)
-            workManager.cancelUniqueWork(WORK_NAME_NOW)
-            workManager.cancelUniqueWork(WORK_NAME_FOREGROUND)
-            return
-        }
-        val request = PeriodicWorkRequestBuilder<SpecialDatesSyncWorker>(1, TimeUnit.DAYS)
-            // Delay the first periodic run so it never overlaps an immediate run.
-            .setInitialDelay(1, TimeUnit.DAYS)
-            .build()
-        workManager.enqueueUniquePeriodicWork(WORK_NAME, ExistingPeriodicWorkPolicy.UPDATE, request)
-    }
-
-    /**
-     * Run one reconcile immediately. [foreground] runs (the app resuming) are
-     * debounced inside the worker and use their own work name, so a frequent
-     * foreground resync can never REPLACE — and swallow — a pending enable /
-     * "Sync now" run, which always syncs. The engine serializes the two if they
-     * overlap.
-     */
-    fun runNow(context: Context, foreground: Boolean = false) {
-        val request = OneTimeWorkRequestBuilder<SpecialDatesSyncWorker>()
-            .setInputData(Data.Builder().putBoolean(KEY_FOREGROUND, foreground).build())
-            .build()
-        val name = if (foreground) WORK_NAME_FOREGROUND else WORK_NAME_NOW
-        WorkManager.getInstance(context)
-            .enqueueUniqueWork(name, ExistingWorkPolicy.REPLACE, request)
-    }
-
-    internal const val INPUT_FOREGROUND = KEY_FOREGROUND
-}
-
-/**
- * Runs the [SpecialDatesSyncEngine]. Pulls its collaborators through a Hilt
- * [EntryPoint] so it works under WorkManager's default worker factory. Records
- * the run for the settings status line; a missing permission parks the feature
- * in a stalled state (surfaced in settings) rather than retrying forever.
- */
-class SpecialDatesSyncWorker(
-    appContext: Context,
-    params: WorkerParameters,
-) : CoroutineWorker(appContext, params) {
-
-    @EntryPoint
-    @InstallIn(SingletonComponent::class)
-    interface Deps {
-        fun settingsPrefs(): SettingsPrefs
-        fun syncEngine(): SpecialDatesSyncEngine
-    }
-
-    override suspend fun doWork(): Result {
-        val deps = EntryPointAccessors.fromApplication(applicationContext, Deps::class.java)
-        val prefs = deps.settingsPrefs()
-
-        val now = System.currentTimeMillis()
-        // A foreground resume can fire often — skip if we synced recently.
-        val foreground = inputData.getBoolean(SpecialDatesScheduler.INPUT_FOREGROUND, false)
-        if (foreground && now - prefs.specialDatesLastForegroundSync.first() < FOREGROUND_DEBOUNCE_MILLIS) {
-            return Result.success()
-        }
-
-        return try {
-            when (val result = deps.syncEngine().sync()) {
-                // The engine re-checks the toggle, so already-queued work never
-                // revives a disabled feature; don't record a run either.
-                SpecialDatesSyncResult.Disabled -> return Result.success()
-                else -> {
-                    val stalled = if (result == SpecialDatesSyncResult.PermissionMissing) {
-                        SpecialDatesStalledReason.PermissionRevoked
-                    } else {
-                        null
-                    }
-                    prefs.recordSpecialDatesRun(now, stalled)
-                }
-            }
-            if (foreground) prefs.setSpecialDatesLastForegroundSync(now)
-            Result.success()
-        } catch (e: SecurityException) {
-            // A revoked calendar/contacts permission won't fix itself on retry —
-            // park the feature in a stalled state (surfaced in settings) instead
-            // of retrying with backoff forever.
-            Log.w(TAG, "Special-dates sync lacks a required permission", e)
-            prefs.recordSpecialDatesRun(now, SpecialDatesStalledReason.PermissionRevoked)
-            Result.success()
-        } catch (e: Exception) {
-            Log.w(TAG, "Special-dates sync failed", e)
-            Result.retry()
-        }
-    }
-
-    companion object {
-        private const val TAG = "SpecialDatesSync"
-
-        /** Skip a foreground-triggered sync if one ran within this window (4h). */
-        private const val FOREGROUND_DEBOUNCE_MILLIS = 4L * 60 * 60 * 1000
-    }
-}

app/src/main/java/de/jeanlucmakiola/calendula/data/contacts/SpecialDatesSyncEngine.kt

@@ -1,304 +0,0 @@
-package de.jeanlucmakiola.calendula.data.contacts
-
-import android.provider.CalendarContract
-import de.jeanlucmakiola.calendula.data.calendar.CalendarDataSource
-import de.jeanlucmakiola.calendula.data.calendar.ManagedEventRow
-import de.jeanlucmakiola.calendula.data.calendar.toWriteTimes
-import de.jeanlucmakiola.floret.reminders.ReminderOverride
-import de.jeanlucmakiola.calendula.data.prefs.SettingsPrefs
-import de.jeanlucmakiola.calendula.domain.Availability
-import de.jeanlucmakiola.calendula.domain.EventForm
-import de.jeanlucmakiola.calendula.domain.RecurrenceFreq
-import de.jeanlucmakiola.calendula.domain.SimpleRecurrence
-import de.jeanlucmakiola.calendula.domain.contacts.ContactSpecialDate
-import de.jeanlucmakiola.calendula.domain.contacts.SpecialDateType
-import de.jeanlucmakiola.calendula.domain.contacts.anchorDate
-import de.jeanlucmakiola.calendula.domain.contacts.managedUid
-import de.jeanlucmakiola.calendula.domain.contacts.renderSpecialDateTitle
-import de.jeanlucmakiola.calendula.domain.toRRule
-import kotlinx.coroutines.flow.first
-import kotlinx.coroutines.sync.Mutex
-import kotlinx.coroutines.sync.withLock
-import kotlinx.datetime.LocalDateTime
-import kotlinx.datetime.LocalTime
-import java.time.ZoneId
-import javax.inject.Inject
-import javax.inject.Singleton
-
-/** Outcome of one mirror reconcile, reported back so the worker can record status. */
-enum class SpecialDatesSyncResult { Success, Disabled, PermissionMissing }
-
-/**
- * Localized, per-type presentation the engine needs but can't derive purely
- * (calendar display name, colour, and the default title template). Kept behind
- * an interface so the engine's diff stays unit-testable without Android
- * resources.
- */
-interface SpecialDatesCalendarSpec {
-    fun displayName(type: SpecialDateType): String
-    fun color(type: SpecialDateType): Int
-    fun defaultTitleTemplate(type: SpecialDateType): String
-}
-
-/**
- * The stored title template for [type], falling back to the localized default
- * when blank/absent — the one resolution rule shared by the sync (what gets
- * written) and the settings editor (what gets shown).
- */
-fun SpecialDatesCalendarSpec.resolveTitleTemplate(
-    type: SpecialDateType,
-    stored: Map<SpecialDateType, String>,
-): String = stored[type]?.takeIf { it.isNotBlank() } ?: defaultTitleTemplate(type)
-
-/**
- * Mirrors contact birthdays/anniversaries/custom dates into local calendars,
- * one per type. Every reconcile is an idempotent diff keyed on the deterministic
- * `UID_2445` ([managedEventUid]): new contacts are inserted (seeding user-owned
- * fields once), changed contacts get a *targeted* managed-column update, and
- * removed contacts are deleted — so a user's own edits (reminders, location,
- * notes) are never clobbered. See docs/design/contact-special-dates.md.
- */
-@Singleton
-class SpecialDatesSyncEngine @Inject constructor(
-    private val contacts: ContactSpecialDatesDataSource,
-    private val calendars: CalendarDataSource,
-    private val prefs: SettingsPrefs,
-    private val spec: SpecialDatesCalendarSpec,
-) {
-
-    // Serializes calendar-lifecycle work: two overlapping syncs (the daily job
-    // racing a "Sync now"/foreground run) would each see no managed calendar and
-    // both create one; a teardown racing an in-flight sync would delete calendars
-    // the sync then recreates. Holding this for the whole of sync()/teardown()
-    // makes those check-then-act sequences atomic, and — because sync() re-reads
-    // the enabled flag inside the lock — a teardown always wins the race.
-    private val lifecycleMutex = Mutex()
-
-    /**
-     * Reconcile every enabled type against the device's contacts. Returns why it
-     * stopped early (disabled / permission gone) or [SpecialDatesSyncResult.Success].
-     */
-    suspend fun sync(): SpecialDatesSyncResult = lifecycleMutex.withLock {
-        if (!prefs.specialDatesEnabled.first()) return SpecialDatesSyncResult.Disabled
-        if (!contacts.hasPermission()) return SpecialDatesSyncResult.PermissionMissing
-
-        val enabledTypes = prefs.specialDatesTypes.first()
-        val calendarByType = reconcileCalendars(enabledTypes)
-
-        val desiredByType = contacts.readSpecialDates().groupBy { it.type }
-        val reminderCtx = readReminderContext()
-        val templates = prefs.specialDatesTitleTemplates.first()
-        val showYear = prefs.specialDatesShowYear.first()
-
-        calendarByType.forEach { (type, calendarId) ->
-            val template = spec.resolveTitleTemplate(type, templates)
-            syncType(
-                calendarId = calendarId,
-                type = type,
-                contactsOfType = desiredByType[type].orEmpty(),
-                template = template,
-                showYear = showYear,
-                reminderCtx = reminderCtx,
-            )
-        }
-        SpecialDatesSyncResult.Success
-    }
-
-    /**
-     * Set the reminder default for a type's managed calendar and apply it to
-     * **all** its existing events too (not just future ones) — for managed
-     * calendars the reminder is a calendar-level setting. Persists the per-calendar
-     * all-day override so new events keep matching. No-op if the calendar for
-     * [type] doesn't exist yet.
-     */
-    suspend fun applyReminders(type: SpecialDateType, override: ReminderOverride) {
-        val calendarId = prefs.specialDatesCalendars.first()[type] ?: return
-        prefs.setCalendarAllDayReminderOverride(calendarId, override)
-        val minutes = when (override) {
-            ReminderOverride.Inherit -> prefs.defaultAllDayReminderMinutes.first()
-            ReminderOverride.None -> emptyList()
-            is ReminderOverride.Minutes -> override.minutes
-        }
-        calendars.applyManagedCalendarReminders(
-            calendarId = calendarId,
-            allDayReminderTimeMinutes = prefs.allDayReminderTimeMinutes.first(),
-            minutes = minutes,
-        )
-    }
-
-    /** Delete every managed calendar and forget its id — used when the feature is turned off. */
-    suspend fun teardown() = lifecycleMutex.withLock {
-        calendars.findManagedCalendars().forEach { calendars.deleteCalendar(it.id) }
-        SpecialDateType.entries.forEach { prefs.setSpecialDatesCalendarId(it, null) }
-    }
-
-    /**
-     * Ensure each enabled type has exactly one managed calendar (adopting an
-     * existing one, or the stored id if it still exists, else creating one) and
-     * that disabled types have none. Returns the calendar id per enabled type.
-     */
-    private suspend fun reconcileCalendars(enabledTypes: Set<SpecialDateType>): Map<SpecialDateType, Long> {
-        val foundByType = calendars.findManagedCalendars()
-            .groupBy({ it.type }, { it.id })
-            .mapValues { it.value.first() }
-        val stored = prefs.specialDatesCalendars.first()
-        val result = LinkedHashMap<SpecialDateType, Long>()
-        for (type in SpecialDateType.entries) {
-            // A stored id counts only if the calendar still exists (the user may
-            // have deleted it in system settings); otherwise adopt a found one.
-            val existingId = stored[type]?.takeIf { id -> foundByType.containsValue(id) }
-                ?: foundByType[type]
-            if (type in enabledTypes) {
-                val id = existingId ?: createCalendar(type)
-                if (stored[type] != id) prefs.setSpecialDatesCalendarId(type, id)
-                result[type] = id
-            } else {
-                if (existingId != null) calendars.deleteCalendar(existingId)
-                if (stored.containsKey(type)) prefs.setSpecialDatesCalendarId(type, null)
-            }
-        }
-        return result
-    }
-
-    private suspend fun createCalendar(type: SpecialDateType): Long {
-        // reconcileCalendars persists the id — the single place ids are recorded.
-        val id = calendars.createManagedCalendar(spec.displayName(type), spec.color(type), type)
-        // Seed a useful all-day reminder default (on the day + a week before), so
-        // birthdays get lead time out of the box. Per-calendar, user-adjustable —
-        // only set when the user hasn't already configured this calendar.
-        if (!prefs.perCalendarAllDayReminderOverride.first().containsKey(id)) {
-            prefs.setCalendarAllDayReminderOverride(
-                id,
-                ReminderOverride.Minutes(DEFAULT_REMINDER_MINUTES),
-            )
-        }
-        return id
-    }
-
-    private suspend fun syncType(
-        calendarId: Long,
-        type: SpecialDateType,
-        contactsOfType: List<ContactSpecialDate>,
-        template: String,
-        showYear: Boolean,
-        reminderCtx: ReminderContext,
-    ) {
-        val built = contactsOfType.map { sd ->
-            buildManagedEvent(calendarId, type, sd, template, showYear, reminderCtx)
-        }
-        val diff = diffManagedEvents(built.map { it.desired }, calendars.queryManagedEvents(calendarId))
-        val formByUid = built.associate { it.desired.uid to it.form }
-        diff.insertUids.forEach { uid ->
-            calendars.insertManagedEvent(formByUid.getValue(uid), uid, reminderCtx.allDayTimeMinutes)
-        }
-        diff.updates.forEach { calendars.updateManagedFields(it.eventId, it.columns) }
-        diff.deleteEventIds.forEach { calendars.deleteEvent(it) }
-    }
-
-    private fun buildManagedEvent(
-        calendarId: Long,
-        type: SpecialDateType,
-        sd: ContactSpecialDate,
-        template: String,
-        showYear: Boolean,
-        reminderCtx: ReminderContext,
-    ): BuiltManagedEvent {
-        val anchor = sd.anchorDate()
-        val start = LocalDateTime(anchor, LocalTime(0, 0))
-        // The source year is static and correct on every occurrence (unlike age).
-        val year = if (showYear) sd.year else null
-        val title = renderSpecialDateTitle(template, sd.displayName, year)
-        val form = EventForm(
-            calendarId = calendarId,
-            title = title,
-            isAllDay = true,
-            start = start,
-            end = start,
-            reminders = reminderCtx.resolveAllDay(calendarId),
-            availability = Availability.Free,
-            rrule = YEARLY_RRULE,
-        )
-        val dtStartMillis = form.toWriteTimes(ZoneId.systemDefault()).dtStartMillis
-        return BuiltManagedEvent(
-            desired = ManagedEventDesired(
-                uid = sd.managedUid(),
-                title = title,
-                dtStartMillis = dtStartMillis,
-                rrule = YEARLY_RRULE,
-            ),
-            form = form,
-        )
-    }
-
-    // Managed events are always all-day, so only the all-day defaults apply.
-    private suspend fun readReminderContext(): ReminderContext = ReminderContext(
-        allDayGlobal = prefs.defaultAllDayReminderMinutes.first(),
-        allDayOverrides = prefs.perCalendarAllDayReminderOverride.first(),
-        allDayTimeMinutes = prefs.allDayReminderTimeMinutes.first(),
-    )
-
-    private data class ReminderContext(
-        val allDayGlobal: List<Int>,
-        val allDayOverrides: Map<Long, List<Int>>,
-        val allDayTimeMinutes: Int,
-    ) {
-        /** Same semantics as `resolveDefaultReminder`: present-empty = explicit none. */
-        fun resolveAllDay(calendarId: Long): List<Int> =
-            allDayOverrides[calendarId] ?: allDayGlobal
-    }
-
-    private data class BuiltManagedEvent(val desired: ManagedEventDesired, val form: EventForm)
-
-    private companion object {
-        /** "On the day" (0) + one week before (7 days), as all-day lead minutes. */
-        val DEFAULT_REMINDER_MINUTES = listOf(0, 7 * 24 * 60)
-        val YEARLY_RRULE = SimpleRecurrence(freq = RecurrenceFreq.Yearly).toRRule()
-    }
-}
-
-/** The managed columns of a desired event, compared against the existing row. */
-internal data class ManagedEventDesired(
-    val uid: String,
-    val title: String,
-    val dtStartMillis: Long,
-    val rrule: String?,
-)
-
-internal data class ManagedFieldUpdate(val eventId: Long, val columns: Map<String, Any?>)
-
-internal data class ManagedDiff(
-    val insertUids: List<String>,
-    val updates: List<ManagedFieldUpdate>,
-    val deleteEventIds: List<Long>,
-)
-
-/**
- * The idempotent diff at the heart of the mirror, keyed on `UID_2445`:
- * desired-not-existing → insert, existing-not-desired → delete, and for events
- * in both only the *changed* managed columns (title/dtstart/rrule) are emitted —
- * so a re-run with no contact changes produces nothing, and a managed update
- * never touches user-owned columns or reminder rows. Pure, so it's unit-tested.
- */
-internal fun diffManagedEvents(
-    desired: List<ManagedEventDesired>,
-    existing: List<ManagedEventRow>,
-): ManagedDiff {
-    val desiredByUid = desired.associateBy { it.uid }
-    val existingByUid = existing.associateBy { it.uid }
-    val insertUids = desired.filter { it.uid !in existingByUid }.map { it.uid }
-    val deleteEventIds = existing.filter { it.uid !in desiredByUid }.map { it.eventId }
-    val updates = buildList {
-        for (d in desired) {
-            val row = existingByUid[d.uid] ?: continue
-            val columns = buildMap<String, Any?> {
-                if (row.title != d.title) put(CalendarContract.Events.TITLE, d.title)
-                if (row.dtStartMillis != d.dtStartMillis) {
-                    put(CalendarContract.Events.DTSTART, d.dtStartMillis)
-                }
-                if (row.rrule != d.rrule) put(CalendarContract.Events.RRULE, d.rrule)
-            }
-            if (columns.isNotEmpty()) add(ManagedFieldUpdate(row.eventId, columns))
-        }
-    }
-    return ManagedDiff(insertUids, updates, deleteEventIds)
-}

app/src/main/java/de/jeanlucmakiola/calendula/data/di/DataModule.kt

@@ -14,12 +14,8 @@ import de.jeanlucmakiola.calendula.data.calendar.AndroidCalendarDataSource
 import de.jeanlucmakiola.calendula.data.calendar.CalendarDataSource
 import de.jeanlucmakiola.calendula.data.calendar.CalendarRepository
 import de.jeanlucmakiola.calendula.data.calendar.CalendarRepositoryImpl
-import de.jeanlucmakiola.calendula.data.contacts.AndroidContactSpecialDatesDataSource
-import de.jeanlucmakiola.calendula.data.contacts.AndroidSpecialDatesCalendarSpec
-import de.jeanlucmakiola.calendula.data.contacts.ContactSpecialDatesDataSource
-import de.jeanlucmakiola.calendula.data.contacts.SpecialDatesCalendarSpec
-import de.jeanlucmakiola.calendula.data.reminders.ProviderReminderInstanceSource
-import de.jeanlucmakiola.calendula.data.reminders.ReminderInstanceSource
+import de.jeanlucmakiola.calendula.data.reminders.AndroidReminderAlertStore
+import de.jeanlucmakiola.calendula.data.reminders.ReminderAlertStore
 import kotlinx.coroutines.CoroutineDispatcher
 import kotlinx.coroutines.Dispatchers
 import javax.inject.Singleton
@@ -46,21 +42,9 @@ abstract class DataBindModule {
 
     @Binds
     @Singleton
-    abstract fun bindReminderInstanceSource(
-        impl: ProviderReminderInstanceSource,
-    ): ReminderInstanceSource
-
-    @Binds
-    @Singleton
-    abstract fun bindContactSpecialDatesDataSource(
-        impl: AndroidContactSpecialDatesDataSource,
-    ): ContactSpecialDatesDataSource
-
-    @Binds
-    @Singleton
-    abstract fun bindSpecialDatesCalendarSpec(
-        impl: AndroidSpecialDatesCalendarSpec,
-    ): SpecialDatesCalendarSpec
+    abstract fun bindReminderAlertStore(
+        impl: AndroidReminderAlertStore,
+    ): ReminderAlertStore
 }
 
 @Module

app/src/main/java/de/jeanlucmakiola/calendula/data/fonts/CustomFontStore.kt

@@ -1,57 +0,0 @@
-package de.jeanlucmakiola.calendula.data.fonts
-
-import android.content.Context
-import android.net.Uri
-import de.jeanlucmakiola.calendula.domain.FontRole
-import java.io.File
-import java.util.Locale
-import android.graphics.fonts.Font as PlatformFont
-
-/**
- * Storage for user-loaded custom fonts (issue #19). A font a user picks via the
- * system file picker is copied into the app's private storage — one file per
- * [FontRole] — so the selection survives even if the original is later moved or
- * deleted, and never leaves the app. The chosen file is validated as a real font
- * before it replaces the previous one, so a bad pick can't wedge the app-wide
- * typography.
- */
-object CustomFontStore {
-
-    private fun dir(context: Context): File = File(context.filesDir, "fonts")
-
-    /** The stored font file for [role] (may not exist yet). */
-    fun file(context: Context, role: FontRole): File =
-        File(dir(context), "${role.name.lowercase(Locale.ROOT)}.ttf")
-
-    fun exists(context: Context, role: FontRole): Boolean =
-        file(context, role).let { it.exists() && it.length() > 0 }
-
-    /**
-     * Copy [uri] into per-role storage, first validating that it parses as a
-     * font. Returns true on success; on any failure the previous file is left
-     * untouched and false is returned (the caller keeps the old selection).
-     */
-    fun import(context: Context, role: FontRole, uri: Uri): Boolean {
-        val target = file(context, role)
-        target.parentFile?.mkdirs()
-        val tmp = File(target.parentFile, "${role.name.lowercase(Locale.ROOT)}.tmp")
-        return try {
-            context.contentResolver.openInputStream(uri)?.use { input ->
-                tmp.outputStream().use { output -> input.copyTo(output) }
-            } ?: return false
-            // Font.Builder throws IOException for anything that isn't a valid
-            // font file (API 29+, which is our minSdk) — a cheap, reliable check.
-            PlatformFont.Builder(tmp).build()
-            if (target.exists() && !target.delete()) return false
-            tmp.renameTo(target)
-        } catch (_: Exception) {
-            tmp.delete()
-            false
-        }
-    }
-
-    /** Forget the custom font for [role] (used when switching away from it). */
-    fun clear(context: Context, role: FontRole) {
-        file(context, role).delete()
-    }
-}

app/src/main/java/de/jeanlucmakiola/calendula/data/ics/IcsExporter.kt

@@ -3,7 +3,6 @@ package de.jeanlucmakiola.calendula.data.ics
 import android.content.Context
 import android.net.Uri
 import androidx.core.content.FileProvider
-import androidx.documentfile.provider.DocumentFile
 import dagger.hilt.android.qualifiers.ApplicationContext
 import java.io.File
 import java.io.IOException
@@ -25,38 +24,7 @@ class IcsExporter @Inject constructor(
     fun writeDocument(uri: Uri, content: String) {
         context.contentResolver.openOutputStream(uri)?.use { out ->
             out.write(content.toByteArray(Charsets.UTF_8))
-            // Only the scheme — the full Uri can embed the user's chosen filename.
-        } ?: throw IOException("Could not open output stream for export (scheme=${uri.scheme})")
-    }
-
-    /**
-     * Write [content] to [fileName] inside the persisted SAF tree [folder],
-     * overwriting it if it already exists (the automatic-backup destination).
-     * Requires a persisted write grant on [folder]. Throws on failure.
-     */
-    fun writeToFolder(folder: Uri, fileName: String, content: String) {
-        val dir = DocumentFile.fromTreeUri(context, folder)
-            ?: throw IOException("Backup folder is not accessible")
-        if (!dir.exists() || !dir.canWrite()) {
-            throw IOException("Backup folder is missing or not writable")
-        }
-        // Reuse the canonical file if present and clean up any "name (1).ics"
-        // duplicates SAF may have created if two runs ever raced — so we always
-        // converge on a single overwritten file.
-        val base = fileName.substringBeforeLast('.')
-        val ext = fileName.substringAfterLast('.', "")
-        var target: DocumentFile? = null
-        for (child in dir.listFiles()) {
-            val name = child.name ?: continue
-            when {
-                name == fileName -> target = child
-                name.startsWith("$base (") && name.endsWith(".$ext") -> child.delete()
-            }
-        }
-        val file = target
-            ?: dir.createFile(MIME_CALENDAR, fileName)
-            ?: throw IOException("Could not create backup file in the chosen folder")
-        writeDocument(file.uri, content)
+        } ?: throw IOException("Could not open $uri for writing")
     }
 
     /**
@@ -73,6 +41,5 @@ class IcsExporter @Inject constructor(
 
     private companion object {
         const val SHARE_DIR = "shared_ics"
-        const val MIME_CALENDAR = "text/calendar"
     }
 }

app/src/main/java/de/jeanlucmakiola/calendula/data/prefs/CalendarPrefs.kt

@@ -1,25 +1,18 @@
 package de.jeanlucmakiola.calendula.data.prefs
 
 import androidx.datastore.core.DataStore
-import androidx.datastore.preferences.core.MutablePreferences
 import androidx.datastore.preferences.core.Preferences
-import androidx.datastore.preferences.core.booleanPreferencesKey
 import androidx.datastore.preferences.core.edit
 import androidx.datastore.preferences.core.longPreferencesKey
 import androidx.datastore.preferences.core.stringPreferencesKey
 import kotlinx.coroutines.flow.Flow
-import kotlinx.coroutines.flow.distinctUntilChanged
 import kotlinx.coroutines.flow.map
 import javax.inject.Inject
 import javax.inject.Singleton
 
 /**
- * App-side calendar preferences. [hiddenCalendarIds] is the drawer's filter
- * sheet — a purely in-app declutter that deliberately does *not* suppress
- * reminders. Switching a calendar off entirely is the system's
- * `Calendars.VISIBLE` flag, written straight to the provider (#75);
- * [pendingDisabledCalendarIds] only holds those switch-offs the app has not been
- * allowed to write yet.
+ * App-side preference for "calendars the user has hidden in this app",
+ * separate from the system's per-calendar VISIBLE flag.
  *
  * Persisted as a comma-separated string of Long ids; non-numeric tokens are
  * silently dropped (defensive — see CalendarPrefsTest).
@@ -29,58 +22,23 @@ class CalendarPrefs @Inject constructor(
     private val store: DataStore<Preferences>,
 ) {
 
-    // Both id sets are deduped: the store is shared with SettingsPrefs, so any
-    // unrelated write would otherwise re-emit an identical set.
-    val hiddenCalendarIds: Flow<Set<Long>> = store.data
-        .map { prefs -> prefs[HIDDEN_IDS_KEY].parseIds() }
-        .distinctUntilChanged()
+    val hiddenCalendarIds: Flow<Set<Long>> = store.data.map { prefs ->
+        prefs[HIDDEN_IDS_KEY].orEmpty()
+            .split(',')
+            .mapNotNull { it.trim().toLongOrNull() }
+            .toSet()
+    }
 
     suspend fun setHiddenCalendarIds(ids: Set<Long>) {
-        store.edit { prefs -> prefs.writeIds(HIDDEN_IDS_KEY, ids) }
-    }
-
-    /**
-     * Switch-offs the provider does not know about yet, because writing
-     * `Calendars.VISIBLE` needs `WRITE_CALENDAR` (#75). Also inherits the
-     * retired app-local model's set, from the same key.
-     *
-     * Honoured as a display and reminder filter while non-empty, but not a
-     * second visibility model: `CalendarVisibilityReconciler` drains it entry by
-     * entry as soon as the app may write, and nothing adds to it while it may.
-     */
-    val pendingDisabledCalendarIds: Flow<Set<Long>> = store.data
-        .map { prefs -> prefs[DISABLED_IDS_KEY].parseIds() }
-        .distinctUntilChanged()
-
-    suspend fun addPendingDisabledCalendarIds(ids: Collection<Long>) =
-        editPendingDisabled { it + ids }
-
-    /**
-     * Drop [ids] from the pending set, one at a time as the reconciler flushes
-     * them, so a run that fails part-way never re-applies what already landed.
-     */
-    suspend fun removePendingDisabledCalendarIds(ids: Collection<Long>) =
-        editPendingDisabled { it - ids.toSet() }
-
-    private suspend fun editPendingDisabled(transform: (Set<Long>) -> Set<Long>) {
         store.edit { prefs ->
-            prefs.writeIds(DISABLED_IDS_KEY, transform(prefs[DISABLED_IDS_KEY].parseIds()))
+            if (ids.isEmpty()) {
+                prefs.remove(HIDDEN_IDS_KEY)
+            } else {
+                prefs[HIDDEN_IDS_KEY] = ids.sorted().joinToString(",")
+            }
         }
     }
 
-    /**
-     * Whether the one-time "visibility follows this device" notice is still
-     * owed. Null until the reconciler has evaluated it (which needs the calendar
-     * permission), false once it has been shown or was never needed.
-     */
-    val visibilityNoticePending: Flow<Boolean?> = store.data.map { prefs ->
-        prefs[VISIBILITY_NOTICE_KEY]
-    }
-
-    suspend fun setVisibilityNoticePending(pending: Boolean) {
-        store.edit { prefs -> prefs[VISIBILITY_NOTICE_KEY] = pending }
-    }
-
     /**
      * The calendar the user last created an event in; preselected in the
      * event form. Null until the first event is created.
@@ -95,17 +53,6 @@ class CalendarPrefs @Inject constructor(
 
     companion object {
         internal val HIDDEN_IDS_KEY = stringPreferencesKey("hidden_calendar_ids")
-        internal val DISABLED_IDS_KEY = stringPreferencesKey("disabled_calendar_ids")
-        internal val VISIBILITY_NOTICE_KEY = booleanPreferencesKey("visibility_notice_pending")
         internal val LAST_USED_CALENDAR_KEY = longPreferencesKey("last_used_calendar_id")
     }
 }
-
-private fun String?.parseIds(): Set<Long> = orEmpty()
-    .split(',')
-    .mapNotNull { it.trim().toLongOrNull() }
-    .toSet()
-
-private fun MutablePreferences.writeIds(key: Preferences.Key<String>, ids: Set<Long>) {
-    if (ids.isEmpty()) remove(key) else set(key, ids.sorted().joinToString(","))
-}

app/src/main/java/de/jeanlucmakiola/calendula/data/prefs/ReminderStatePrefs.kt

@@ -1,36 +0,0 @@
-package de.jeanlucmakiola.calendula.data.prefs
-
-import androidx.datastore.core.DataStore
-import androidx.datastore.preferences.core.Preferences
-import androidx.datastore.preferences.core.edit
-import androidx.datastore.preferences.core.longPreferencesKey
-import kotlinx.coroutines.flow.first
-import kotlinx.coroutines.flow.map
-import javax.inject.Inject
-import javax.inject.Singleton
-
-/**
- * How far reminder delivery has got — the one number replacing the provider's
- * `CalendarAlerts.STATE` (#75). A scan posts the reminders falling after this
- * watermark and up to now, then moves it to now, so a scan running twice cannot
- * post twice while a late one still catches up.
- *
- * Unset means "never scanned", not zero: the first scan after an install would
- * otherwise treat every reminder since the epoch as overdue.
- */
-@Singleton
-class ReminderStatePrefs @Inject constructor(
-    private val store: DataStore<Preferences>,
-) {
-
-    /** The watermark, or `null` before the first scan has ever run. */
-    suspend fun lastScanMillis(): Long? = store.data.map { it[LAST_SCAN_KEY] }.first()
-
-    suspend fun setLastScanMillis(millis: Long) {
-        store.edit { prefs -> prefs[LAST_SCAN_KEY] = millis }
-    }
-
-    private companion object {
-        val LAST_SCAN_KEY = longPreferencesKey("reminder_last_scan_millis")
-    }
-}

app/src/main/java/de/jeanlucmakiola/calendula/data/reminders/EventReminderReceiver.kt

@@ -0,0 +1,57 @@
+package de.jeanlucmakiola.calendula.data.reminders
+
+import android.Manifest
+import android.content.BroadcastReceiver
+import android.content.Context
+import android.content.Intent
+import android.content.pm.PackageManager
+import android.provider.CalendarContract
+import androidx.core.content.ContextCompat
+import dagger.hilt.android.AndroidEntryPoint
+import de.jeanlucmakiola.calendula.data.prefs.SettingsPrefs
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.SupervisorJob
+import kotlinx.coroutines.flow.first
+import kotlinx.coroutines.launch
+import javax.inject.Inject
+
+/**
+ * Becomes the app that turns the calendar provider's reminder alarms into
+ * visible notifications (the Etar model — the provider broadcasts
+ * `EVENT_REMINDER` at reminder time but posts nothing itself).
+ *
+ * The broadcast's data URI only carries the alarm time, so it is ignored:
+ * we query every still-scheduled, due `CalendarAlerts` row ourselves, post
+ * them, and mark them fired. Posting happens before marking — a crash in
+ * between re-posts silently (same tag) rather than losing the reminder.
+ */
+@AndroidEntryPoint
+class EventReminderReceiver : BroadcastReceiver() {
+
+    @Inject lateinit var alertStore: ReminderAlertStore
+    @Inject lateinit var notifier: ReminderNotifier
+    @Inject lateinit var settingsPrefs: SettingsPrefs
+
+    override fun onReceive(context: Context, intent: Intent) {
+        if (intent.action != CalendarContract.ACTION_EVENT_REMINDER) return
+        val readGranted = ContextCompat.checkSelfPermission(
+            context, Manifest.permission.READ_CALENDAR,
+        ) == PackageManager.PERMISSION_GRANTED
+        if (!readGranted || !notifier.canPost()) return
+
+        val pendingResult = goAsync()
+        CoroutineScope(SupervisorJob() + Dispatchers.IO).launch {
+            try {
+                if (settingsPrefs.remindersEnabled.first()) {
+                    val now = System.currentTimeMillis()
+                    val due = alertStore.dueAlerts(now)
+                    due.forEach(notifier::post)
+                    alertStore.markFired(due.map { it.alertId }, now)
+                }
+            } finally {
+                pendingResult.finish()
+            }
+        }
+    }
+}

app/src/main/java/de/jeanlucmakiola/calendula/data/reminders/ReminderActionReceiver.kt

@@ -1,144 +0,0 @@
-package de.jeanlucmakiola.calendula.data.reminders
-
-import android.content.BroadcastReceiver
-import android.content.Context
-import android.content.Intent
-import androidx.core.net.toUri
-import dagger.hilt.android.AndroidEntryPoint
-import de.jeanlucmakiola.calendula.data.prefs.SettingsPrefs
-import kotlinx.coroutines.CoroutineScope
-import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.SupervisorJob
-import kotlinx.coroutines.flow.first
-import kotlinx.coroutines.launch
-import javax.inject.Inject
-
-/**
- * Handles the "Snooze" and "Dismiss" actions on a reminder notification, plus
- * the internal re-show when a snooze elapses. All three are app-internal
- * intents (notification action buttons and our own [ReminderSnoozeScheduler]
- * alarm), so the receiver is not exported.
- *
- * - **Dismiss** just cancels the notification — the scan's watermark has moved
- *   past this reminder, so nothing re-posts it.
- * - **Snooze** cancels the notification and schedules an exact alarm to re-show
- *   it after the user's snooze delay.
- * - **Show** (the alarm) re-posts the same notification, so the user can snooze
- *   or dismiss it again — unless the calendar was switched off during the
- *   snooze, which [ReminderNotifier.post] catches — this alarm is its own
- *   trigger, outside the ordinary scan.
- */
-@AndroidEntryPoint
-class ReminderActionReceiver : BroadcastReceiver() {
-
-    @Inject lateinit var notifier: ReminderNotifier
-    @Inject lateinit var scheduler: ReminderSnoozeScheduler
-    @Inject lateinit var settingsPrefs: SettingsPrefs
-
-    override fun onReceive(context: Context, intent: Intent) {
-        val alert = alertFrom(intent) ?: return
-        when (intent.action) {
-            ACTION_DISMISS -> notifier.cancel(alert)
-
-            ACTION_SNOOZE -> {
-                // Cancel now so the notification doesn't linger until the alarm;
-                // the snooze delay read is the only async work.
-                notifier.cancel(alert)
-                val pendingResult = goAsync()
-                CoroutineScope(SupervisorJob() + Dispatchers.IO).launch {
-                    try {
-                        val minutes = settingsPrefs.snoozeMinutes.first()
-                        val triggerAt = System.currentTimeMillis() + minutes * 60_000L
-                        scheduler.schedule(alert, triggerAt)
-                    } finally {
-                        pendingResult.finish()
-                    }
-                }
-            }
-
-            ACTION_SHOW -> {
-                val pendingResult = goAsync()
-                CoroutineScope(SupervisorJob() + Dispatchers.IO).launch {
-                    try {
-                        if (settingsPrefs.remindersEnabled.first() && notifier.canPost()) {
-                            notifier.post(alert)
-                        }
-                    } finally {
-                        pendingResult.finish()
-                    }
-                }
-            }
-        }
-    }
-
-    companion object {
-        const val ACTION_SNOOZE = "de.jeanlucmakiola.calendula.reminders.SNOOZE"
-        const val ACTION_DISMISS = "de.jeanlucmakiola.calendula.reminders.DISMISS"
-        const val ACTION_SHOW = "de.jeanlucmakiola.calendula.reminders.SHOW"
-
-        /**
-         * Not handled here — the notification body opens the detail screen
-         * directly. It only claims a slot in [requestCode] so that intent stays
-         * distinct from the three this receiver does handle.
-         */
-        const val ACTION_OPEN = "de.jeanlucmakiola.calendula.reminders.OPEN"
-
-        private const val EXTRA_ALERT_KEY = "alert_key"
-        private const val EXTRA_EVENT_ID = "event_id"
-        private const val EXTRA_CALENDAR_ID = "calendar_id"
-        private const val EXTRA_BEGIN = "begin"
-        private const val EXTRA_END = "end"
-        private const val EXTRA_TITLE = "title"
-        private const val EXTRA_LOCATION = "location"
-        private const val EXTRA_ALL_DAY = "all_day"
-
-        /**
-         * An explicit intent to this receiver carrying [alert] as extras. The
-         * data URI duplicates no information but is what keeps two reminders'
-         * `PendingIntent`s apart — `filterEquals` never compares extras.
-         */
-        fun intent(context: Context, action: String, alert: ReminderAlert): Intent =
-            Intent(context, ReminderActionReceiver::class.java).apply {
-                this.action = action
-                data = "calendula://reminder/${alert.key}".toUri()
-                putExtra(EXTRA_ALERT_KEY, alert.key)
-                putExtra(EXTRA_EVENT_ID, alert.eventId)
-                putExtra(EXTRA_CALENDAR_ID, alert.calendarId)
-                putExtra(EXTRA_BEGIN, alert.beginMillis)
-                putExtra(EXTRA_END, alert.endMillis)
-                putExtra(EXTRA_TITLE, alert.title)
-                putExtra(EXTRA_LOCATION, alert.location)
-                putExtra(EXTRA_ALL_DAY, alert.isAllDay)
-            }
-
-        /**
-         * A stable request code per (alert, action), so one notification's
-         * PendingIntents stay distinct. The shift keeps the action slot intact;
-         * the top bits it drops are separated by [intent]'s per-reminder URI.
-         */
-        fun requestCode(alert: ReminderAlert, action: String): Int {
-            val actionOffset = when (action) {
-                ACTION_SNOOZE -> 1
-                ACTION_DISMISS -> 2
-                ACTION_SHOW -> 3
-                ACTION_OPEN -> 4
-                else -> 0
-            }
-            return (alert.key.toInt() shl 3) + actionOffset
-        }
-
-        private fun alertFrom(intent: Intent): ReminderAlert? {
-            if (!intent.hasExtra(EXTRA_ALERT_KEY)) return null
-            return ReminderAlert(
-                key = intent.getLongExtra(EXTRA_ALERT_KEY, 0L),
-                eventId = intent.getLongExtra(EXTRA_EVENT_ID, 0L),
-                calendarId = intent.getLongExtra(EXTRA_CALENDAR_ID, 0L),
-                beginMillis = intent.getLongExtra(EXTRA_BEGIN, 0L),
-                endMillis = intent.getLongExtra(EXTRA_END, 0L),
-                title = intent.getStringExtra(EXTRA_TITLE).orEmpty(),
-                location = intent.getStringExtra(EXTRA_LOCATION),
-                isAllDay = intent.getBooleanExtra(EXTRA_ALL_DAY, false),
-            )
-        }
-    }
-}

app/src/main/java/de/jeanlucmakiola/calendula/data/reminders/ReminderAlarms.kt

@@ -1,64 +0,0 @@
-package de.jeanlucmakiola.calendula.data.reminders
-
-import android.app.AlarmManager
-import android.app.PendingIntent
-import android.content.Context
-import android.content.Intent
-import android.os.Build
-import androidx.core.content.getSystemService
-import dagger.hilt.android.qualifiers.ApplicationContext
-import javax.inject.Inject
-import javax.inject.Singleton
-
-/**
- * True on API < 31 (no restriction), and on 31+ when the exact-alarm capability
- * is held — auto-granted via `USE_EXACT_ALARM` on API 33+ (Calendula is a
- * calendar app), user-revocable on 31–32.
- */
-internal fun AlarmManager.canScheduleExactCompat(): Boolean =
-    Build.VERSION.SDK_INT < Build.VERSION_CODES.S || canScheduleExactAlarms()
-
-/**
- * Holds the app's own wake-up for the next reminder (#75). Exactly one alarm
- * exists at a time, for the earliest reminder ahead; every firing re-scans and
- * re-arms. Exact, with an inexact allow-while-idle fallback where the OS
- * withholds the capability (API 31–32 with the permission revoked).
- */
-@Singleton
-class ReminderAlarmScheduler @Inject constructor(
-    @ApplicationContext private val context: Context,
-) {
-
-    fun scheduleScan(triggerAtMillis: Long) {
-        val alarmManager = context.getSystemService<AlarmManager>() ?: return
-        val pendingIntent = scanPendingIntent(PendingIntent.FLAG_UPDATE_CURRENT)
-        if (alarmManager.canScheduleExactCompat()) {
-            alarmManager.setExactAndAllowWhileIdle(
-                AlarmManager.RTC_WAKEUP, triggerAtMillis, pendingIntent,
-            )
-        } else {
-            alarmManager.setAndAllowWhileIdle(
-                AlarmManager.RTC_WAKEUP, triggerAtMillis, pendingIntent,
-            )
-        }
-    }
-
-    /** Drop the pending wake-up — reminders are off, or there is nothing to wait for. */
-    fun cancelScan() {
-        val alarmManager = context.getSystemService<AlarmManager>() ?: return
-        alarmManager.cancel(scanPendingIntent(PendingIntent.FLAG_UPDATE_CURRENT))
-    }
-
-    private fun scanPendingIntent(flags: Int): PendingIntent = PendingIntent.getBroadcast(
-        context,
-        SCAN_REQUEST_CODE,
-        Intent(context, ReminderScheduleReceiver::class.java)
-            .setAction(ReminderScheduleReceiver.ACTION_SCAN),
-        flags or PendingIntent.FLAG_IMMUTABLE,
-    )
-
-    private companion object {
-        // Fixed: there is only ever one scan alarm, and re-arming must replace it.
-        const val SCAN_REQUEST_CODE = 0x5CA1
-    }
-}

app/src/main/java/de/jeanlucmakiola/calendula/data/reminders/ReminderAlert.kt

@@ -1,32 +0,0 @@
-package de.jeanlucmakiola.calendula.data.reminders
-
-import de.jeanlucmakiola.calendula.domain.reminders.PlannedReminder
-
-/**
- * One reminder as the notification layer needs it: what to show, and the stable
- * [key] identifying it across a reboot, a re-scan and a reinstall. Derived from
- * the reminder itself (see [PlannedReminder.key]) — in-house delivery has no
- * `CalendarAlerts` row to take an id from (#75).
- */
-data class ReminderAlert(
-    val key: Long,
-    val eventId: Long,
-    val calendarId: Long,
-    val beginMillis: Long,
-    val endMillis: Long,
-    /** Raw event title; may be blank — the notifier substitutes "(no title)". */
-    val title: String,
-    val location: String?,
-    val isAllDay: Boolean,
-)
-
-fun PlannedReminder.toAlert(): ReminderAlert = ReminderAlert(
-    key = key,
-    eventId = instance.eventId,
-    calendarId = instance.calendarId,
-    beginMillis = instance.beginMillis,
-    endMillis = instance.endMillis,
-    title = instance.title,
-    location = instance.location,
-    isAllDay = instance.isAllDay,
-)

app/src/main/java/de/jeanlucmakiola/calendula/data/reminders/ReminderAlertStore.kt

@@ -0,0 +1,112 @@
+package de.jeanlucmakiola.calendula.data.reminders
+
+import android.content.ContentValues
+import android.content.Context
+import android.provider.CalendarContract
+import android.util.Log
+import dagger.hilt.android.qualifiers.ApplicationContext
+import javax.inject.Inject
+import javax.inject.Singleton
+
+/**
+ * One due row of the provider's `CalendarAlerts` table (a join with Events).
+ * Stays in the data layer: alerts feed the notification path only and never
+ * reach a screen, so there is no domain model for them.
+ */
+data class ReminderAlert(
+    val alertId: Long,
+    val eventId: Long,
+    val beginMillis: Long,
+    val endMillis: Long,
+    /** Raw event title; may be blank — the notifier substitutes "(no title)". */
+    val title: String,
+    val location: String?,
+    val isAllDay: Boolean,
+)
+
+/**
+ * Seam over the `CalendarAlerts` table so the receiver logic can be exercised
+ * without a ContentResolver. The provider creates these rows itself — only
+ * for `METHOD_ALERT` reminders (verified in AOSP `CalendarAlarmManager`), so
+ * email reminders never show up here.
+ */
+interface ReminderAlertStore {
+
+    /** Alerts that are due (`ALARM_TIME` has passed) and still unhandled. */
+    fun dueAlerts(nowMillis: Long): List<ReminderAlert>
+
+    /**
+     * Mark the given alerts handled (`STATE_FIRED`) so a later broadcast does
+     * not surface them again. Best effort: this write needs `WRITE_CALENDAR`,
+     * which the user may have declined — then re-broadcasts silently replace
+     * the already-posted notifications instead (same tag, alert-once).
+     */
+    fun markFired(alertIds: List<Long>, nowMillis: Long)
+}
+
+@Singleton
+class AndroidReminderAlertStore @Inject constructor(
+    @ApplicationContext private val context: Context,
+) : ReminderAlertStore {
+
+    override fun dueAlerts(nowMillis: Long): List<ReminderAlert> = context.contentResolver.query(
+        CalendarContract.CalendarAlerts.CONTENT_URI,
+        PROJECTION,
+        CalendarContract.CalendarAlerts.STATE + " = ? AND " +
+            CalendarContract.CalendarAlerts.ALARM_TIME + " <= ?",
+        arrayOf(
+            CalendarContract.CalendarAlerts.STATE_SCHEDULED.toString(),
+            nowMillis.toString(),
+        ),
+        CalendarContract.CalendarAlerts.BEGIN + " ASC",
+    )?.use { c ->
+        buildList {
+            while (c.moveToNext()) {
+                add(
+                    ReminderAlert(
+                        alertId = c.getLong(0),
+                        eventId = c.getLong(1),
+                        beginMillis = c.getLong(2),
+                        endMillis = c.getLong(3),
+                        title = c.getString(4).orEmpty(),
+                        location = c.getString(5)?.takeIf { it.isNotBlank() },
+                        isAllDay = c.getInt(6) == 1,
+                    ),
+                )
+            }
+        }
+    } ?: emptyList()
+
+    override fun markFired(alertIds: List<Long>, nowMillis: Long) {
+        if (alertIds.isEmpty()) return
+        val values = ContentValues().apply {
+            put(CalendarContract.CalendarAlerts.STATE, CalendarContract.CalendarAlerts.STATE_FIRED)
+            put(CalendarContract.CalendarAlerts.RECEIVED_TIME, nowMillis)
+            put(CalendarContract.CalendarAlerts.NOTIFY_TIME, nowMillis)
+        }
+        try {
+            context.contentResolver.update(
+                CalendarContract.CalendarAlerts.CONTENT_URI,
+                values,
+                CalendarContract.CalendarAlerts._ID +
+                    " IN (" + alertIds.joinToString(",") + ")",
+                null,
+            )
+        } catch (e: SecurityException) {
+            Log.w(TAG, "Cannot mark alerts fired without WRITE_CALENDAR", e)
+        }
+    }
+
+    private companion object {
+        const val TAG = "ReminderAlertStore"
+        val PROJECTION = arrayOf(
+            CalendarContract.CalendarAlerts._ID,
+            CalendarContract.CalendarAlerts.EVENT_ID,
+            CalendarContract.CalendarAlerts.BEGIN,
+            CalendarContract.CalendarAlerts.END,
+            CalendarContract.CalendarAlerts.TITLE,
+            CalendarContract.CalendarAlerts.EVENT_LOCATION,
+            CalendarContract.CalendarAlerts.ALL_DAY,
+        )
+    }
+}

app/src/main/java/de/jeanlucmakiola/calendula/data/reminders/ReminderInstanceSource.kt

@@ -1,121 +0,0 @@
-package de.jeanlucmakiola.calendula.data.reminders
-
-import android.content.Context
-import android.content.ContentUris
-import android.provider.CalendarContract
-import dagger.hilt.android.qualifiers.ApplicationContext
-import de.jeanlucmakiola.calendula.domain.reminders.ReminderEventInstance
-import javax.inject.Inject
-import javax.inject.Singleton
-
-/**
- * The read side of in-house reminder delivery: occurrences and their reminder
- * offsets, read from `Instances` and `Reminders` rather than `CalendarAlerts`,
- * which cannot be assumed to be written (#75).
- *
- * An interface so [ReminderScanner] can be exercised on the JVM.
- */
-interface ReminderInstanceSource {
-
-    /** Occurrences overlapping `[fromMillis, toMillis]`, of switched-on calendars. */
-    fun occurrences(fromMillis: Long, toMillis: Long): List<ReminderEventInstance>
-
-    /** `METHOD_ALERT` reminder offsets per event id, for the given events. */
-    fun reminderMinutes(eventIds: Collection<Long>): Map<Long, List<Int>>
-
-    /**
-     * The largest `METHOD_ALERT` offset anywhere in the table, so the query
-     * window can be stretched to cover it and a long-lead reminder is planned
-     * before it comes due rather than firing late.
-     */
-    fun longestReminderMinutes(): Int
-}
-
-@Singleton
-class ProviderReminderInstanceSource @Inject constructor(
-    @ApplicationContext private val context: Context,
-) : ReminderInstanceSource {
-
-    override fun occurrences(fromMillis: Long, toMillis: Long): List<ReminderEventInstance> {
-        val uri = CalendarContract.Instances.CONTENT_URI.buildUpon().apply {
-            ContentUris.appendId(this, fromMillis)
-            ContentUris.appendId(this, toMillis)
-        }.build()
-        // `visible` is the flag the app's one visibility model writes (#75).
-        // The status clause mirrors CalendarDataSource.instances: NULL means
-        // "normal", so a bare `!= CANCELED` would drop every ordinary event.
-        val selection = "${CalendarContract.Calendars.VISIBLE} = 1 AND " +
-            "(${CalendarContract.Instances.STATUS} IS NULL OR " +
-            "${CalendarContract.Instances.STATUS} != ${CalendarContract.Events.STATUS_CANCELED})"
-        return context.contentResolver.query(
-            uri, OCCURRENCE_PROJECTION, selection, null, null,
-        )?.use { c ->
-            buildList {
-                while (c.moveToNext()) {
-                    add(
-                        ReminderEventInstance(
-                            eventId = c.getLong(0),
-                            calendarId = c.getLong(1),
-                            beginMillis = c.getLong(2),
-                            endMillis = if (c.isNull(3)) 0L else c.getLong(3),
-                            title = c.getString(4).orEmpty(),
-                            location = c.getString(5)?.takeIf { it.isNotBlank() },
-                            isAllDay = c.getInt(6) == 1,
-                        ),
-                    )
-                }
-            }
-        } ?: emptyList()
-    }
-
-    override fun reminderMinutes(eventIds: Collection<Long>): Map<Long, List<Int>> {
-        if (eventIds.isEmpty()) return emptyMap()
-        val out = mutableMapOf<Long, MutableList<Int>>()
-        // Batched: the ids go into the selection literally, and an unbounded
-        // `IN (...)` would grow the SQL past what SQLite takes.
-        eventIds.distinct().chunked(EVENT_ID_BATCH).forEach { batch ->
-            context.contentResolver.query(
-                CalendarContract.Reminders.CONTENT_URI,
-                REMINDER_PROJECTION,
-                "${CalendarContract.Reminders.METHOD} = " +
-                    "${CalendarContract.Reminders.METHOD_ALERT} AND " +
-                    "${CalendarContract.Reminders.EVENT_ID} IN (${batch.joinToString(",")})",
-                null,
-                null,
-            )?.use { c ->
-                while (c.moveToNext()) {
-                    out.getOrPut(c.getLong(0)) { mutableListOf() } += c.getInt(1)
-                }
-            }
-        }
-        return out
-    }
-
-    override fun longestReminderMinutes(): Int = context.contentResolver.query(
-        CalendarContract.Reminders.CONTENT_URI,
-        arrayOf(CalendarContract.Reminders.MINUTES),
-        "${CalendarContract.Reminders.METHOD} = ${CalendarContract.Reminders.METHOD_ALERT}",
-        null,
-        // One row is enough: the provider passes the sort order to SQLite.
-        "${CalendarContract.Reminders.MINUTES} DESC",
-    )?.use { c -> if (c.moveToFirst()) c.getInt(0) else 0 } ?: 0
-
-    private companion object {
-        const val EVENT_ID_BATCH = 50
-
-        val OCCURRENCE_PROJECTION = arrayOf(
-            CalendarContract.Instances.EVENT_ID,
-            CalendarContract.Instances.CALENDAR_ID,
-            CalendarContract.Instances.BEGIN,
-            CalendarContract.Instances.END,
-            CalendarContract.Instances.TITLE,
-            CalendarContract.Instances.EVENT_LOCATION,
-            CalendarContract.Instances.ALL_DAY,
-        )
-
-        val REMINDER_PROJECTION = arrayOf(
-            CalendarContract.Reminders.EVENT_ID,
-            CalendarContract.Reminders.MINUTES,
-        )
-    }
-}

app/src/main/java/de/jeanlucmakiola/calendula/data/reminders/ReminderMaintenanceWorker.kt

@@ -1,62 +0,0 @@
-package de.jeanlucmakiola.calendula.data.reminders
-
-import android.content.Context
-import android.util.Log
-import androidx.work.CoroutineWorker
-import androidx.work.ExistingPeriodicWorkPolicy
-import androidx.work.PeriodicWorkRequestBuilder
-import androidx.work.WorkManager
-import androidx.work.WorkerParameters
-import dagger.hilt.EntryPoint
-import dagger.hilt.InstallIn
-import dagger.hilt.android.EntryPointAccessors
-import dagger.hilt.components.SingletonComponent
-import java.util.concurrent.TimeUnit
-
-/**
- * The backstop under the alarm: a daily scan that runs whether or not the alarm
- * survived. Finds nothing to do in the steady state; it exists for the device
- * that quietly drops the alarm without a reboot to announce it (#75).
- */
-object ReminderMaintenanceScheduler {
-
-    private const val WORK_NAME = "reminder-scan-maintenance"
-
-    /** Enqueue the daily backstop; idempotent, so every launch may call it. */
-    fun apply(context: Context) {
-        val request = PeriodicWorkRequestBuilder<ReminderMaintenanceWorker>(1, TimeUnit.DAYS)
-            // The launch scan covers now; let the first periodic run wait.
-            .setInitialDelay(1, TimeUnit.DAYS)
-            .build()
-        WorkManager.getInstance(context)
-            .enqueueUniquePeriodicWork(WORK_NAME, ExistingPeriodicWorkPolicy.UPDATE, request)
-    }
-}
-
-class ReminderMaintenanceWorker(
-    appContext: Context,
-    params: WorkerParameters,
-) : CoroutineWorker(appContext, params) {
-
-    @EntryPoint
-    @InstallIn(SingletonComponent::class)
-    interface Deps {
-        fun reminderScanner(): ReminderScanner
-    }
-
-    override suspend fun doWork(): Result = try {
-        EntryPointAccessors.fromApplication(applicationContext, Deps::class.java)
-            .reminderScanner()
-            .scan()
-        Result.success()
-    } catch (e: Exception) {
-        // The scan swallows its own failures, so anything reaching here is the
-        // entry point itself — a retry will not mend it.
-        Log.w(TAG, "Reminder maintenance scan failed", e)
-        Result.success()
-    }
-
-    private companion object {
-        const val TAG = "ReminderMaintenance"
-    }
-}

app/src/main/java/de/jeanlucmakiola/calendula/data/reminders/ReminderNotifier.kt

@@ -14,35 +14,21 @@ import androidx.core.content.ContextCompat
 import dagger.hilt.android.qualifiers.ApplicationContext
 import de.jeanlucmakiola.calendula.MainActivity
 import de.jeanlucmakiola.calendula.R
-import de.jeanlucmakiola.calendula.data.calendar.CalendarDataSource
-import de.jeanlucmakiola.calendula.data.prefs.CalendarPrefs
-import de.jeanlucmakiola.calendula.data.prefs.SettingsPrefs
-import de.jeanlucmakiola.calendula.data.prefs.is24Hour
-import de.jeanlucmakiola.calendula.data.prefs.resolveFirstDay
-import kotlinx.coroutines.flow.first
-import kotlinx.datetime.isoDayNumber
-import java.time.DayOfWeek
-import java.time.Instant
 import java.time.ZoneId
 import java.util.Locale
 import javax.inject.Inject
 import javax.inject.Singleton
 
 /**
- * Posts one notification per due reminder on a dedicated channel. Tapping opens
- * the event's detail screen.
- *
- * The tag is the reminder's stable key, so a scan that posts the same reminder
- * again — a catch-up pass overlapping the alarm that already fired — replaces
- * its notification silently ([NotificationCompat.Builder.setOnlyAlertOnce])
- * instead of stacking a second one.
+ * Posts one notification per due reminder alert on a dedicated channel.
+ * Tapping opens the event's detail screen; the tag is the alert id, so a
+ * re-broadcast of an alert we couldn't mark fired replaces its notification
+ * silently ([NotificationCompat.Builder.setOnlyAlertOnce]) instead of
+ * duplicating it.
  */
 @Singleton
 class ReminderNotifier @Inject constructor(
     @ApplicationContext private val context: Context,
-    private val settingsPrefs: SettingsPrefs,
-    private val calendarPrefs: CalendarPrefs,
-    private val calendarDataSource: CalendarDataSource,
 ) {
 
     /** False when the user declined `POST_NOTIFICATIONS` or muted the app. */
@@ -53,43 +39,15 @@ class ReminderNotifier @Inject constructor(
         return granted && NotificationManagerCompat.from(context).areNotificationsEnabled()
     }
 
-    /**
-     * The single choke point for "this calendar is switched off", covering the
-     * two paths that reach [post] around the scan's own filter: a snooze armed
-     * before the switch-off, and a read-only install whose switch lives in
-     * [CalendarPrefs].
-     */
-    private suspend fun isSilenced(calendarId: Long): Boolean =
-        calendarId in calendarPrefs.pendingDisabledCalendarIds.first() ||
-            calendarDataSource.isCalendarVisible(calendarId) == false
-
-    /**
-     * Post [alert], unless its calendar is switched off. Returns whether the
-     * notification was put up, which the snooze re-show path uses to tell a
-     * silenced reminder from a delivered one.
-     */
-    suspend fun post(alert: ReminderAlert): Boolean {
-        if (isSilenced(alert.calendarId)) return false
+    fun post(alert: ReminderAlert) {
         ensureChannel()
         val title = alert.title.ifBlank { context.getString(R.string.event_untitled) }
-        val is24Hour = settingsPrefs.timeFormat.first()
-            .is24Hour(android.text.format.DateFormat.is24HourFormat(context))
-        val zone = ZoneId.systemDefault()
-        val locale = Locale.getDefault()
-        // resolveFirstDay yields a kotlinx.datetime day; bridge it to java.time by
-        // its shared ISO number (1..7) for the date math in reminderTimeText.
-        val firstDayOfWeek = DayOfWeek.of(settingsPrefs.weekStart.first().resolveFirstDay(locale).isoDayNumber)
         val time = reminderTimeText(
             beginMillis = alert.beginMillis,
             endMillis = alert.endMillis,
             isAllDay = alert.isAllDay,
-            zone = zone,
-            locale = locale,
-            is24Hour = is24Hour,
-            today = Instant.now().atZone(zone).toLocalDate(),
-            firstDayOfWeek = firstDayOfWeek,
-            tomorrowLabel = context.getString(R.string.reminder_day_tomorrow),
-            yesterdayLabel = context.getString(R.string.reminder_day_yesterday),
+            zone = ZoneId.systemDefault(),
+            locale = Locale.getDefault(),
         )
         val text = listOfNotNull(time, alert.location).joinToString(" · ")
         val notification = NotificationCompat.Builder(context, CHANNEL_ID)
@@ -103,47 +61,19 @@ class ReminderNotifier @Inject constructor(
             .setAutoCancel(true)
             .setOnlyAlertOnce(true)
             .setContentIntent(detailIntent(alert))
-            .addAction(
-                R.drawable.ic_notification_snooze,
-                context.getString(R.string.reminder_action_snooze),
-                actionIntent(alert, ReminderActionReceiver.ACTION_SNOOZE),
-            )
-            .addAction(
-                R.drawable.ic_notification_dismiss,
-                context.getString(R.string.reminder_action_dismiss),
-                actionIntent(alert, ReminderActionReceiver.ACTION_DISMISS),
-            )
             .build()
         try {
             NotificationManagerCompat.from(context)
-                .notify(alert.key.toString(), NOTIFICATION_ID, notification)
+                .notify(alert.alertId.toString(), NOTIFICATION_ID, notification)
         } catch (e: SecurityException) {
             // POST_NOTIFICATIONS was revoked between canPost() and here.
             Log.w(TAG, "Could not post reminder for event ${alert.eventId}", e)
         }
-        // Handled either way — a retry hits the same revoked permission.
-        return true
     }
 
-    /** Remove a posted reminder (snooze re-shows it later; dismiss is final). */
-    fun cancel(alert: ReminderAlert) {
-        NotificationManagerCompat.from(context).cancel(alert.key.toString(), NOTIFICATION_ID)
-    }
-
-    private fun actionIntent(alert: ReminderAlert, action: String): PendingIntent =
-        PendingIntent.getBroadcast(
-            context,
-            ReminderActionReceiver.requestCode(alert, action),
-            ReminderActionReceiver.intent(context, action, alert),
-            PendingIntent.FLAG_UPDATE_CURRENT or PendingIntent.FLAG_IMMUTABLE,
-        )
-
     private fun detailIntent(alert: ReminderAlert): PendingIntent = PendingIntent.getActivity(
         context,
-        // Shares the per-(alert, action) request-code scheme with the buttons.
-        /* requestCode = */ ReminderActionReceiver.requestCode(
-            alert, ReminderActionReceiver.ACTION_OPEN,
-        ),
+        /* requestCode = */ alert.alertId.toInt(),
         MainActivity.eventDetailIntent(context, alert.eventId, alert.beginMillis, alert.endMillis),
         PendingIntent.FLAG_UPDATE_CURRENT or PendingIntent.FLAG_IMMUTABLE,
     )

app/src/main/java/de/jeanlucmakiola/calendula/data/reminders/ReminderScanner.kt

@@ -1,158 +0,0 @@
-package de.jeanlucmakiola.calendula.data.reminders
-
-import android.Manifest
-import android.content.Context
-import android.content.pm.PackageManager
-import android.util.Log
-import androidx.core.content.ContextCompat
-import dagger.hilt.android.qualifiers.ApplicationContext
-import de.jeanlucmakiola.calendula.data.calendar.CalendarDataSource
-import de.jeanlucmakiola.calendula.data.di.IoDispatcher
-import de.jeanlucmakiola.calendula.data.prefs.ReminderStatePrefs
-import de.jeanlucmakiola.calendula.data.prefs.SettingsPrefs
-import de.jeanlucmakiola.calendula.domain.reminders.planReminders
-import de.jeanlucmakiola.calendula.domain.reminders.reminderQueryHorizon
-import de.jeanlucmakiola.calendula.domain.reminders.reminderWatermark
-import de.jeanlucmakiola.calendula.domain.reminders.scheduleReminders
-import kotlinx.coroutines.CoroutineScope
-import kotlinx.coroutines.CoroutineStart
-import kotlinx.coroutines.SupervisorJob
-import kotlinx.coroutines.channels.BufferOverflow
-import kotlinx.coroutines.flow.MutableSharedFlow
-import kotlinx.coroutines.flow.debounce
-import kotlinx.coroutines.flow.first
-import kotlinx.coroutines.flow.launchIn
-import kotlinx.coroutines.flow.onEach
-import kotlinx.coroutines.launch
-import kotlinx.coroutines.sync.Mutex
-import kotlinx.coroutines.sync.withLock
-import kotlinx.coroutines.withContext
-import java.time.ZoneId
-import javax.inject.Inject
-import javax.inject.Singleton
-
-/**
- * One pass of in-house reminder delivery: read what is planned, post what has
- * come due, and arm the next wake-up. Every trigger runs the same [scan], and
- * re-running is always safe — the watermark in [ReminderStatePrefs] decides what
- * is owed, not the trigger.
- */
-@Singleton
-class ReminderScanner @Inject constructor(
-    @ApplicationContext private val context: Context,
-    private val source: ReminderInstanceSource,
-    private val calendarDataSource: CalendarDataSource,
-    private val notifier: ReminderNotifier,
-    private val alarms: ReminderAlarmScheduler,
-    private val state: ReminderStatePrefs,
-    private val settingsPrefs: SettingsPrefs,
-    @IoDispatcher private val io: kotlinx.coroutines.CoroutineDispatcher,
-) {
-
-    // Triggers overlap freely (an alarm during a burst of edits); serialize so
-    // two passes can't both read the same watermark and post the same reminder.
-    private val scanLock = Mutex()
-
-    private val scope = CoroutineScope(SupervisorJob() + io)
-    private val providerChanges = MutableSharedFlow<Unit>(
-        replay = 0, extraBufferCapacity = 1, onBufferOverflow = BufferOverflow.DROP_OLDEST,
-    )
-    private var watching = false
-
-    suspend fun scan() = withContext(io) {
-        scanLock.withLock {
-            try {
-                runScan()
-            } catch (e: SecurityException) {
-                // Permission revoked mid-flight; the next grant re-scans.
-                Log.w(TAG, "Reminder scan lacks the calendar permission", e)
-            } catch (e: Exception) {
-                Log.w(TAG, "Reminder scan failed", e)
-            }
-        }
-    }
-
-    private suspend fun runScan() {
-        val now = System.currentTimeMillis()
-        if (!hasReadCalendar()) return
-
-        if (!settingsPrefs.remindersEnabled.first()) {
-            // Reminders off: drop the wake-up, but keep the watermark moving
-            // so switching them back on doesn't replay the backlog.
-            alarms.cancelScan()
-            state.setLastScanMillis(now)
-            return
-        }
-
-        val lookahead = reminderQueryHorizon(LOOKAHEAD_MILLIS, source.longestReminderMinutes())
-        // Reach into the past too: an all-day "at time of event" encodes to a
-        // negative offset, and a catch-up pass needs the occurrences it missed.
-        val occurrences = source.occurrences(now - PAST_WINDOW_MILLIS, now + lookahead)
-        val planned = planReminders(
-            instances = occurrences,
-            minutesByEvent = source.reminderMinutes(occurrences.map { it.eventId }),
-            zone = ZoneId.systemDefault(),
-            allDayTimeMinutes = settingsPrefs.allDayReminderTimeMinutes.first(),
-        )
-
-        val schedule = scheduleReminders(
-            planned = planned,
-            lastFiredMillis = reminderWatermark(state.lastScanMillis(), now),
-            nowMillis = now,
-            horizonMillis = now + MAX_ALARM_INTERVAL_MILLIS,
-        )
-
-        if (notifier.canPost()) {
-            schedule.due.forEach { notifier.post(it.toAlert()) }
-        }
-        // Advance even when nothing could be posted, so muting notifications
-        // doesn't build a backlog.
-        state.setLastScanMillis(now)
-        alarms.scheduleScan(schedule.nextAlarmMillis)
-    }
-
-    private fun hasReadCalendar(): Boolean = ContextCompat.checkSelfPermission(
-        context, Manifest.permission.READ_CALENDAR,
-    ) == PackageManager.PERMISSION_GRANTED
-
-    /**
-     * Re-scan when the provider changes, so a saved or deleted event re-arms the
-     * alarm at once. Debounced, since a single save lands as several
-     * notifications. Process-lifetime only; other triggers cover the rest.
-     */
-    fun startWatchingProvider() {
-        if (watching) return
-        watching = true
-        providerChanges
-            .debounce(PROVIDER_CHANGE_DEBOUNCE_MILLIS)
-            .onEach { scan() }
-            .launchIn(scope)
-        calendarDataSource.registerChangeListener { providerChanges.tryEmit(Unit) }
-    }
-
-    /** Fire-and-forget scan for callers that are not in a coroutine already. */
-    fun scanInBackground() {
-        scope.launch(start = CoroutineStart.DEFAULT) { scan() }
-    }
-
-    private companion object {
-        const val TAG = "ReminderScanner"
-
-        /**
-         * How far ahead occurrences are read. Stretched further by the longest
-         * reminder offset in the table, so this is only the floor.
-         */
-        const val LOOKAHEAD_MILLIS = 7L * 24 * 60 * 60 * 1000
-
-        /** How far back to look for occurrences that may still owe a reminder. */
-        const val PAST_WINDOW_MILLIS = 24L * 60 * 60 * 1000
-
-        /**
-         * Never wait longer than a day for the next pass: it rolls the lookahead
-         * window forward and re-arms an alarm the system may have dropped.
-         */
-        const val MAX_ALARM_INTERVAL_MILLIS = 24L * 60 * 60 * 1000
-
-        const val PROVIDER_CHANGE_DEBOUNCE_MILLIS = 2_000L
-    }
-}

app/src/main/java/de/jeanlucmakiola/calendula/data/reminders/ReminderScheduleReceiver.kt

@@ -1,53 +0,0 @@
-package de.jeanlucmakiola.calendula.data.reminders
-
-import android.content.BroadcastReceiver
-import android.content.Context
-import android.content.Intent
-import dagger.hilt.android.AndroidEntryPoint
-import kotlinx.coroutines.CoroutineScope
-import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.SupervisorJob
-import kotlinx.coroutines.launch
-import javax.inject.Inject
-
-/**
- * Every out-of-process reason to re-run a reminder scan: our own [ACTION_SCAN]
- * alarm, boot and package-replaced (both wipe pending alarms), and time or
- * timezone changes (both move reminders relative to the armed alarm). All do the
- * same thing, since [ReminderScanner.scan] is idempotent.
- *
- * Exported for the system broadcasts; an early scan triggered by another app is
- * harmless.
- */
-@AndroidEntryPoint
-class ReminderScheduleReceiver : BroadcastReceiver() {
-
-    @Inject lateinit var scanner: ReminderScanner
-
-    override fun onReceive(context: Context, intent: Intent) {
-        // Checked despite every action doing the same thing: the receiver is
-        // exported and the broadcasts it takes are protected, so any other
-        // action did not come from where it claims to.
-        if (intent.action !in HANDLED_ACTIONS) return
-        val pendingResult = goAsync()
-        CoroutineScope(SupervisorJob() + Dispatchers.IO).launch {
-            try {
-                scanner.scan()
-            } finally {
-                pendingResult.finish()
-            }
-        }
-    }
-
-    companion object {
-        const val ACTION_SCAN = "de.jeanlucmakiola.calendula.reminders.SCAN"
-
-        private val HANDLED_ACTIONS = setOf(
-            ACTION_SCAN,
-            Intent.ACTION_BOOT_COMPLETED,
-            Intent.ACTION_MY_PACKAGE_REPLACED,
-            Intent.ACTION_TIME_CHANGED,
-            Intent.ACTION_TIMEZONE_CHANGED,
-        )
-    }
-}

app/src/main/java/de/jeanlucmakiola/calendula/data/reminders/ReminderSnoozeScheduler.kt

@@ -1,54 +0,0 @@
-package de.jeanlucmakiola.calendula.data.reminders
-
-import android.app.AlarmManager
-import android.app.PendingIntent
-import android.content.Context
-import android.os.Build
-import androidx.core.content.getSystemService
-import dagger.hilt.android.qualifiers.ApplicationContext
-import javax.inject.Inject
-import javax.inject.Singleton
-
-/**
- * Schedules a one-off exact alarm that re-shows a snoozed reminder. Separate
- * from [ReminderAlarmScheduler]'s single moving scan alarm: a snooze is pinned
- * to one reminder and has to outlive the watermark moving past it, so it carries
- * the reminder in its own intent.
- *
- * Falls back to an inexact allow-while-idle alarm where the OS withholds the
- * exact-alarm capability (API 31–32 with the permission revoked).
- */
-@Singleton
-class ReminderSnoozeScheduler @Inject constructor(
-    @ApplicationContext private val context: Context,
-) {
-
-    fun schedule(alert: ReminderAlert, triggerAtMillis: Long) {
-        val alarmManager = context.getSystemService<AlarmManager>() ?: return
-        val pendingIntent = PendingIntent.getBroadcast(
-            context,
-            ReminderActionReceiver.requestCode(alert, ReminderActionReceiver.ACTION_SHOW),
-            ReminderActionReceiver.intent(context, ReminderActionReceiver.ACTION_SHOW, alert),
-            PendingIntent.FLAG_UPDATE_CURRENT or PendingIntent.FLAG_IMMUTABLE,
-        )
-        if (canScheduleExact(alarmManager)) {
-            alarmManager.setExactAndAllowWhileIdle(
-                AlarmManager.RTC_WAKEUP, triggerAtMillis, pendingIntent,
-            )
-        } else {
-            // Exact alarms revoked (API 31–32); an inexact wake is the best
-            // available without nagging for SCHEDULE_EXACT_ALARM.
-            alarmManager.setAndAllowWhileIdle(
-                AlarmManager.RTC_WAKEUP, triggerAtMillis, pendingIntent,
-            )
-        }
-    }
-
-    /**
-     * True on API < 31 (no restriction), and on 31+ when the exact-alarm
-     * capability is held — auto-granted via `USE_EXACT_ALARM` on API 33+
-     * (Calendula is a calendar app), user-revocable on 31–32.
-     */
-    private fun canScheduleExact(alarmManager: AlarmManager): Boolean =
-        Build.VERSION.SDK_INT < Build.VERSION_CODES.S || alarmManager.canScheduleExactAlarms()
-}

app/src/main/java/de/jeanlucmakiola/calendula/data/reminders/ReminderTimeText.kt

@@ -1,37 +1,22 @@
 package de.jeanlucmakiola.calendula.data.reminders
 
-import de.jeanlucmakiola.calendula.ui.common.timeOfDayFormatter
-import java.time.DayOfWeek
 import java.time.Instant
-import java.time.LocalDate
 import java.time.ZoneId
 import java.time.ZoneOffset
 import java.time.format.DateTimeFormatter
 import java.time.format.FormatStyle
-import java.time.format.TextStyle
-import java.time.temporal.ChronoUnit
 import java.util.Locale
 
 /**
  * The one line of time context in a reminder notification. Pure so it can be
- * JVM-tested.
+ * JVM-tested:
  *
- * Timed events that fall on a day other than [today] are prefixed with that
- * day, so a reminder fired ahead of time no longer reads as if the event were
- * today (issue #46). The prefix prefers natural language and stays short:
- *
- * - today:                "09:30 – 10:00"                 (no prefix)
- * - tomorrow / yesterday: "Tomorrow, 09:30 – 10:00"       ([tomorrowLabel] / [yesterdayLabel])
- * - elsewhere this week:  "Thu, 09:30 – 10:00"            (localized short weekday)
- * - further out:          "16 Jul, 09:30 – 10:00"         (medium date — a weekday
- *                                                          alone would be ambiguous)
- * - timed, crossing days: "11 Jun, 23:30 – 12 Jun, 00:30" (medium date + short time,
- *                                                          already unambiguous)
+ * - timed, same day:      "09:30 – 10:00"
+ * - timed, crossing days: "11 Jun, 23:30 – 12 Jun, 00:30" (medium date + short time)
  * - all-day, one day:     "11 Jun 2026"
  * - all-day, multi-day:   "11 Jun 2026 – 12 Jun 2026"
  *
- * All-day instances already carry an explicit date, so they never gain a
- * relative prefix. They store UTC midnights with an exclusive end, so they are
+ * All-day instances store UTC midnights with an exclusive end, so they are
  * read in UTC and the end day is the last *covered* day.
  */
 fun reminderTimeText(
@@ -40,11 +25,6 @@ fun reminderTimeText(
     isAllDay: Boolean,
     zone: ZoneId,
     locale: Locale,
-    is24Hour: Boolean,
-    today: LocalDate,
-    firstDayOfWeek: DayOfWeek,
-    tomorrowLabel: String,
-    yesterdayLabel: String,
 ): String {
     if (isAllDay) {
         val dateFormat = DateTimeFormatter.ofLocalizedDate(FormatStyle.MEDIUM).withLocale(locale)
@@ -60,71 +40,17 @@ fun reminderTimeText(
         }
     }
 
-    val timeFormat = timeOfDayFormatter(is24Hour, locale)
-    val dateFormat = DateTimeFormatter.ofLocalizedDate(FormatStyle.MEDIUM).withLocale(locale)
+    val timeFormat = DateTimeFormatter.ofLocalizedTime(FormatStyle.SHORT).withLocale(locale)
     val begin = Instant.ofEpochMilli(beginMillis).atZone(zone)
     val end = Instant.ofEpochMilli(endMillis).atZone(zone)
     return if (begin.toLocalDate() == end.toLocalDate()) {
-        val range = timeFormat.format(begin) + RANGE + timeFormat.format(end)
-        val prefix = relativeDayPrefix(
-            day = begin.toLocalDate(),
-            today = today,
-            firstDayOfWeek = firstDayOfWeek,
-            locale = locale,
-            dateFormat = dateFormat,
-            tomorrowLabel = tomorrowLabel,
-            yesterdayLabel = yesterdayLabel,
-        )
-        if (prefix == null) range else "$prefix, $range"
+        timeFormat.format(begin) + RANGE + timeFormat.format(end)
     } else {
-        // Cross-day: medium date + the chosen short time, joined per side. Built
-        // from the two formatters (not ofLocalizedDateTime) so the 12/24h choice
-        // applies to the time portion too. The explicit dates already say which
-        // day, so no relative prefix is layered on top.
-        val dateTime = { z: java.time.ZonedDateTime -> "${dateFormat.format(z)}, ${timeFormat.format(z)}" }
-        dateTime(begin) + RANGE + dateTime(end)
+        val dateTimeFormat = DateTimeFormatter
+            .ofLocalizedDateTime(FormatStyle.MEDIUM, FormatStyle.SHORT)
+            .withLocale(locale)
+        dateTimeFormat.format(begin) + RANGE + dateTimeFormat.format(end)
     }
 }
 
-/**
- * A short label for [day] relative to [today], or `null` when it *is* today (the
- * common case, which needs no prefix). Weekday names are used only within the
- * current week — a "next Wednesday" would be indistinguishable from this one, so
- * anything past this week falls back to the exact date.
- */
-private fun relativeDayPrefix(
-    day: LocalDate,
-    today: LocalDate,
-    firstDayOfWeek: DayOfWeek,
-    locale: Locale,
-    dateFormat: DateTimeFormatter,
-    tomorrowLabel: String,
-    yesterdayLabel: String,
-): String? = when (ChronoUnit.DAYS.between(today, day)) {
-    0L -> null
-    1L -> tomorrowLabel
-    -1L -> yesterdayLabel
-    else -> if (isSameWeek(day, today, firstDayOfWeek)) {
-        day.dayOfWeek.getDisplayName(TextStyle.SHORT, locale)
-    } else {
-        dateFormat.format(day)
-    }
-}
-
-/**
- * True when [day] and [today] share the same week. The week boundary honours the
- * user's *week starts on* setting (already resolved to a concrete [firstDayOfWeek],
- * with [firstDayOfWeek] falling back to the locale default upstream).
- */
-private fun isSameWeek(day: LocalDate, today: LocalDate, firstDayOfWeek: DayOfWeek): Boolean {
-    val startOfWeek = today.previousOrSame(firstDayOfWeek)
-    return !day.isBefore(startOfWeek) && day.isBefore(startOfWeek.plusWeeks(1))
-}
-
-/** The most recent [target] on or before this date (this date itself when it matches). */
-private fun LocalDate.previousOrSame(target: DayOfWeek): LocalDate {
-    val backtrack = (dayOfWeek.value - target.value + 7) % 7
-    return minusDays(backtrack.toLong())
-}
-
 private const val RANGE = " – "

app/src/main/java/de/jeanlucmakiola/calendula/domain/CalendarRowState.kt

@@ -1,60 +0,0 @@
-package de.jeanlucmakiola.calendula.domain
-
-/**
- * The ways a calendar can behave unlike a plain, writable one — each a reason it
- * is missing from the event and import pickers (#76).
- */
-enum class CalendarStateLabel {
-    /**
-     * A special-dates mirror the app fills from contacts. Writable and visible,
-     * yet no event target: anything authored here is deleted by the next sync.
-     */
-    MANAGED,
-
-    /** Contents can't be modified: a WebCal subscription, a read-only share. */
-    READ_ONLY,
-
-    /** The account holds the events, but this device isn't syncing them down. */
-    NOT_SYNCED,
-}
-
-/**
- * Whether the account keeps this calendar's events off the device
- * (`Calendars.SYNC_EVENTS = 0`) — empty by construction. Device-local calendars
- * are excluded: nothing syncs them by definition, and one from another app can
- * hold real events at `sync_events = 0`.
- */
-val CalendarSource.isNotSynced: Boolean
-    get() = !syncsEvents && !isLocal
-
-/**
- * Whether a visibility switch on this calendar can change anything the user
- * would see — it can't for a non-syncing one, with no events on the device.
- */
-val CalendarSource.hasVisibilitySwitch: Boolean
-    get() = !isNotSynced
-
-/**
- * Whether this calendar can be offered as a target for a new or imported event.
- * The one predicate behind both pickers, so the states [CalendarStateLabel]
- * names on a manager row are exactly the states that keep a calendar out of them
- * (#76). An event already living in an excluded calendar keeps it; the editor
- * adds that calendar back to its picker.
- */
-val CalendarSource.isEventTarget: Boolean
-    get() = canModifyContents && isVisibleInSystem && !isManaged && !isNotSynced
-
-/** Every state worth naming on this calendar's row, in reading order. */
-fun CalendarSource.stateLabels(): List<CalendarStateLabel> = buildList {
-    if (isManaged) add(CalendarStateLabel.MANAGED)
-    if (!canModifyContents) add(CalendarStateLabel.READ_ONLY)
-    if (isNotSynced) add(CalendarStateLabel.NOT_SYNCED)
-}
-
-/**
- * Calendar-manager order within one group: the ones you can actually act on
- * first, the non-syncing ones after them. Stable otherwise, so the provider's
- * display-name ordering survives.
- */
-fun List<CalendarSource>.orderedForManager(): List<CalendarSource> =
-    sortedBy { it.isNotSynced }

app/src/main/java/de/jeanlucmakiola/calendula/domain/CalendarVisibilityPlan.kt

@@ -1,48 +0,0 @@
-package de.jeanlucmakiola.calendula.domain
-
-/**
- * The `Calendars.VISIBLE` writes that flush the app's pending "switched off"
- * set into the provider, plus the ids that need no write at all.
- */
-data class CalendarVisibilityPlan(
-    val hide: Set<Long> = emptySet(),
-    val settled: Set<Long> = emptySet(),
-) {
-    val isEmpty: Boolean get() = hide.isEmpty() && settled.isEmpty()
-}
-
-/**
- * Reconcile [pendingDisabledIds] — switch-offs the app could not write, plus
- * what the retired app-local visibility model left behind (#75) — against the
- * calendars actually on the device.
- *
- * Only ever *hides*: switching a system-hidden calendar back on would un-hide it
- * in every other calendar app too. Calendula follows the flag and explains
- * itself once (see [hasSystemHiddenCalendars]).
- *
- * [CalendarVisibilityPlan.settled] carries the ids needing no write — already
- * hidden, or gone from the device.
- */
-fun calendarVisibilityPlan(
-    calendars: List<CalendarSource>,
-    pendingDisabledIds: Set<Long>,
-): CalendarVisibilityPlan {
-    val byId = calendars.associateBy { it.id }
-    val hide = mutableSetOf<Long>()
-    val settled = mutableSetOf<Long>()
-    for (id in pendingDisabledIds) {
-        val calendar = byId[id]
-        // Gone from the device, or already invisible — nothing to write.
-        if (calendar != null && calendar.isVisibleInSystem) hide += id else settled += id
-    }
-    return CalendarVisibilityPlan(hide = hide, settled = settled)
-}
-
-/**
- * Whether any calendar is switched off at system level without Calendula having
- * asked for it — the condition the one-time notice explains.
- */
-fun hasSystemHiddenCalendars(
-    calendars: List<CalendarSource>,
-    pendingDisabledIds: Set<Long>,
-): Boolean = calendars.any { !it.isVisibleInSystem && it.id !in pendingDisabledIds }

app/src/main/java/de/jeanlucmakiola/calendula/domain/EventColorPalette.kt

@@ -1,112 +0,0 @@
-package de.jeanlucmakiola.calendula.domain
-
-import de.jeanlucmakiola.calendula.domain.color.Oklch
-import de.jeanlucmakiola.calendula.domain.color.eventTone
-import de.jeanlucmakiola.calendula.domain.color.oklchOf
-
-/**
- * Curates an account's published event palette for the colour picker.
- *
- * Sync adapters differ wildly in what they publish: Google exposes a
- * hand-picked two-dozen set, while CalDAV adapters (DAVx5) dump all ~147 CSS3
- * named colours — including exact-value aliases (aqua/cyan, the gray/grey
- * spelling pairs) and dozens of visually indistinguishable whites and grays
- * (#22).
- *
- * Crucially, curation runs against the colour the picker actually *paints*, not
- * the raw provider value — and it gets that colour from the same [eventTone]
- * the picker calls, rather than from a copy of its shaping kept in step by hand.
- * Because a harmonised container pins lightness, the raw palette's lightness
- * axis is invisible on screen: two raw colours that look different — a navy and
- * a mid blue — paint as one swatch, and every neutral (black, the grays, white)
- * paints as the same grey. Judging distinctness in raw space, as before, left
- * near-identical painted swatches and stranded the neutrals as a run of
- * look-alike tints at the end of the grid.
- *
- * Three steps, all in painted space:
- *  1. Collapse swatches that paint identically to one (alphabetically-first key
- *     wins, deterministically) — this folds aliases, dark/light shades of a
- *     hue, and all the neutrals together.
- *  2. Oversized palettes (> [CURATION_TRIGGER_SIZE]) drop the neutral-origin
- *     swatches — with lightness pinned, a grey source paints as plain grey, so
- *     "has no hue left" is simply zero chroma — and are then thinned to visually
- *     distinct colours: most vivid first, a colour is kept only when at least
- *     [MIN_DISTANCE] away in Oklab from every colour already kept. Small
- *     palettes are already curated by their adapter and pass through whole.
- *  3. The survivors are ordered like a rainbow — continuously by painted hue —
- *     with the wheel cut at its single widest empty gap so the one unavoidable
- *     seam lands in dead space and no hue family is torn across both ends.
- *
- * Every surviving option keeps its provider [EventColorOption.key], so a pick
- * still round-trips through sync.
- */
-fun List<EventColorOption>.curatedForPicker(): List<EventColorOption> {
-    val painted = sortedBy { it.key }
-        .distinctBy { paintedArgb(it.argb) }
-        .map { it to oklchOf(paintedArgb(it.argb)) }
-    val kept = if (painted.size <= CURATION_TRIGGER_SIZE) {
-        painted
-    } else {
-        thin(painted.filter { (_, painted) -> painted.chroma > 0f })
-    }
-    return orderAroundWheel(kept).map { (option, _) -> option }
-}
-
-/**
- * Orders swatches continuously around the (painted) hue wheel, then cuts the
- * circle at its widest angular gap so the single seam lands in empty space
- * instead of mid-family. Saturation breaks ties, vivid first.
- */
-private fun orderAroundWheel(
-    swatches: List<Pair<EventColorOption, Oklch>>,
-): List<Pair<EventColorOption, Oklch>> {
-    if (swatches.size < 2) return swatches
-    val byHue = swatches.sortedWith(
-        compareBy({ (_, painted) -> painted.hue }, { (_, painted) -> -painted.chroma }),
-    )
-    // Split the wheel after the largest empty arc between neighbouring hues;
-    // the default is the wrap gap (last hue back round to the first), i.e. the
-    // familiar 0→360 order, and we only rotate away from it for a wider void.
-    var cutAfter = byHue.lastIndex
-    var widestGap = 360f - byHue.last().second.hue + byHue.first().second.hue
-    for (i in 0 until byHue.lastIndex) {
-        val gap = byHue[i + 1].second.hue - byHue[i].second.hue
-        if (gap > widestGap) {
-            widestGap = gap
-            cutAfter = i
-        }
-    }
-    return byHue.subList(cutAfter + 1, byHue.size) + byHue.subList(0, cutAfter + 1)
-}
-
-/** Greedy max-distance filter: vivid colours stake out clusters first. */
-private fun thin(
-    swatches: List<Pair<EventColorOption, Oklch>>,
-): List<Pair<EventColorOption, Oklch>> {
-    val byVividness = swatches
-        .sortedWith(
-            compareByDescending<Pair<EventColorOption, Oklch>> { it.second.chroma }
-                .thenBy { it.first.key },
-        )
-    val kept = mutableListOf<Pair<EventColorOption, Oklch>>()
-    for (candidate in byVividness) {
-        if (kept.none { it.second.distanceTo(candidate.second) < MIN_DISTANCE }) kept += candidate
-    }
-    return kept
-}
-
-/** The colour the picker paints for [argb]; the light theme stands in as the
- *  reference, since a harmonised container differs only in lightness by theme
- *  and curation compares hue and chroma. */
-private fun paintedArgb(argb: Int): Int =
-    eventTone(argb, dark = false, harmonise = true).container
-
-/** Palettes at most this big skip the thinning (Google's ~26 pass through). */
-private const val CURATION_TRIGGER_SIZE = 36
-
-/**
- * Minimum Oklab distance between surviving painted swatches. Painted colours all
- * share one lightness, so this is really a hue/chroma separation — far enough
- * apart that two swatches never read as the same colour in the grid.
- */
-private const val MIN_DISTANCE = 0.025f

app/src/main/java/de/jeanlucmakiola/calendula/domain/EventForm.kt

@@ -4,14 +4,13 @@ import kotlinx.datetime.LocalDate
 import kotlinx.datetime.LocalDateTime
 import kotlinx.datetime.LocalTime
 import kotlinx.datetime.TimeZone
-import kotlinx.datetime.toInstant
 import kotlinx.datetime.toLocalDateTime
 import kotlin.time.Instant
 
 /**
  * User input for creating an event (and, from v1.3, editing one). Times are
- * wall-clock values in [timezone]; the data layer translates them to provider
- * millis (all-day events normalise to UTC midnights there).
+ * wall-clock values in the device zone; the data layer translates them to
+ * provider millis (all-day events normalise to UTC midnights there).
  */
 data class EventForm(
     val calendarId: Long?,
@@ -19,23 +18,6 @@ data class EventForm(
     val isAllDay: Boolean = false,
     val start: LocalDateTime,
     val end: LocalDateTime,
-    /**
-     * The zone [start]/[end] are wall-clock values in, or null to follow the
-     * device — null is not "no zone", it is "whichever zone the device is in
-     * when this is saved", which is what an event authored and lived in one
-     * place wants. The data layer resolves it at write time and always stamps a
-     * concrete `EVENT_TIMEZONE`.
-     *
-     * A non-null value pins the event to a zone regardless of where the device
-     * is, so it keeps tracking that zone's offset across DST. [toEditForm] only
-     * sets it when the stored zone differs from the device's, so merely opening
-     * a local event never reveals the field — and re-opening a pinned one in
-     * another zone round-trips it rather than silently re-anchoring it.
-     *
-     * Always null for all-day events: those are date-anchored, not zone-anchored
-     * (see [EventFormField.Timezone] and the data layer's UTC-midnight rule).
-     */
-    val timezone: String? = null,
     val location: String = "",
     val description: String = "",
     /** Reminder lead times in minutes before the start, deduplicated. */
@@ -59,50 +41,20 @@ data class EventForm(
      */
     val colorKey: String? = null,
     val color: Int? = null,
-    /**
-     * Guests the user has added/kept on the event. Calendula only writes these
-     * `Attendees` rows — it has no INTERNET and never sends an invitation
-     * itself; whether a guest is notified is decided downstream by the
-     * calendar's backend (local: no one; CalDAV/Google: the server/account).
-     * Read-only rows the form doesn't model (the organizer, resources) are
-     * preserved by the data layer, not carried here.
-     */
-    val attendees: List<EventAttendee> = emptyList(),
-)
-
-/**
- * One editable guest: the user controls the [email] (the identity we dedup and
- * write on), an optional display [name], and whether they're [optional] rather
- * than required. Response status and the organizer/resource distinction are not
- * user-editable, so they aren't modelled here.
- */
-data class EventAttendee(
-    val email: String,
-    val name: String = "",
-    val optional: Boolean = false,
 )
 
 /**
  * The form's optional sections. Which ones show by default is a user setting;
- * the rest unfold behind a "more fields" button. Declaration order is the order
- * they're offered in, so a new constant goes where it belongs on the form, not
- * at the end.
+ * the rest unfold behind a "more fields" button.
  */
 enum class EventFormField {
     Location,
     Description,
-    /**
-     * Pins the event's wall-clock times to a zone. Offered right after the time
-     * fields it qualifies, and suppressed entirely for all-day events, whose
-     * dates are deliberately zone-free.
-     */
-    Timezone,
     Reminders,
     Recurrence,
     Availability,
     Visibility,
     Color,
-    Attendees,
 }
 
 enum class EventFormProblem {
@@ -126,25 +78,8 @@ enum class EventFormProblem {
  * All-day provider times are UTC midnights with an exclusive end; the form
  * shows the last covered day and keeps placeholder wall-clock times in case
  * the user switches the event to timed.
- *
- * A timed event stored in a zone other than [zone] is prefilled *in its own
- * zone* and keeps it pinned, so the wall-clock the form shows is the one the
- * event means ("the New York 09:00 call") and a later save re-anchors it to the
- * same zone rather than the device's.
  */
 fun EventDetail.toEditForm(beginMillis: Long, endMillis: Long, zone: TimeZone): EventForm {
-    // All-day events are date-anchored and carry a nominal "UTC" that is an
-    // anchor, not a location, so they never pin a zone.
-    val pinnedZone = if (instance.isAllDay) {
-        null
-    } else {
-        eventTimezone
-            ?.takeIf { it != zone.id }
-            // An unparseable id (a malformed sync row) can't be honoured or
-            // shown; fall back to the device zone rather than failing the open.
-            ?.takeIf { runCatching { TimeZone.of(it) }.isSuccess }
-    }
-    val formZone = pinnedZone?.let { TimeZone.of(it) } ?: zone
     val (start, end) = if (instance.isAllDay) {
         val startDate = Instant.fromEpochMilliseconds(beginMillis)
             .toLocalDateTime(TimeZone.UTC).date
@@ -153,8 +88,8 @@ fun EventDetail.toEditForm(beginMillis: Long, endMillis: Long, zone: TimeZone):
         val endDate = maxOf(startDate, LocalDate.fromEpochDays(endExclusive.toEpochDays() - 1))
         LocalDateTime(startDate, LocalTime(9, 0)) to LocalDateTime(endDate, LocalTime(10, 0))
     } else {
-        Instant.fromEpochMilliseconds(beginMillis).toLocalDateTime(formZone) to
-            Instant.fromEpochMilliseconds(endMillis).toLocalDateTime(formZone)
+        Instant.fromEpochMilliseconds(beginMillis).toLocalDateTime(zone) to
+            Instant.fromEpochMilliseconds(endMillis).toLocalDateTime(zone)
     }
     return EventForm(
         calendarId = instance.calendarId,
@@ -162,7 +97,6 @@ fun EventDetail.toEditForm(beginMillis: Long, endMillis: Long, zone: TimeZone):
         isAllDay = instance.isAllDay,
         start = start,
         end = end,
-        timezone = pinnedZone,
         location = instance.location.orEmpty(),
         description = description.orEmpty(),
         reminders = reminders.map { it.minutes }.distinct().sorted(),
@@ -174,24 +108,6 @@ fun EventDetail.toEditForm(beginMillis: Long, endMillis: Long, zone: TimeZone):
         // calendar's colour.
         colorKey = eventColorKey,
         color = eventColor,
-        // Only editable guests ride in the form: drop the organizer and
-        // resource rows (not user-editable) and any without an email (we key
-        // edits and dedup on the address). The data layer preserves the rows we
-        // don't carry here, so they're never clobbered on save.
-        attendees = attendees
-            .filter {
-                it.relationship != AttendeeRelationship.Organizer &&
-                    it.type != AttendeeType.Resource
-            }
-            .mapNotNull { a ->
-                a.email?.takeIf { it.isNotBlank() }?.let { email ->
-                    EventAttendee(
-                        email = email,
-                        name = a.name,
-                        optional = a.type == AttendeeType.Optional,
-                    )
-                }
-            },
     )
 }
 
@@ -201,10 +117,9 @@ fun EventDetail.toEditForm(beginMillis: Long, endMillis: Long, zone: TimeZone):
  * while the form was open. The raw row times ride along because
  * [toEditForm] derives the form's times from the *tapped occurrence*, so
  * re-deriving with the same occurrence would mask an externally moved
- * event. Guests are covered (the form writes editable attendees), so an
- * external attendee change now also trips the conflict check. Still not
- * covered: status, the user's own response, reminder methods, the
- * organizer/resource rows, and a recurring event's duration.
+ * event. Not covered (the form can't write them, and the dirty-checked
+ * write can't clobber them): attendees, status, the user's own response,
+ * reminder methods, and a recurring event's duration.
  */
 data class EditSnapshot(
     val form: EventForm,
@@ -220,23 +135,6 @@ fun EventDetail.toEditSnapshot(beginMillis: Long, endMillis: Long, zone: TimeZon
         rowEnd = instance.end,
     )
 
-/**
- * The form's times as they land in [target] — what a pinned event's wall-clock
- * actually means where the user is standing. Null when there's nothing to
- * disambiguate: an unpinned event (already in [target]), one pinned to [target]
- * itself, an all-day event (no zone), or an unparseable pinned zone.
- *
- * The form edits a pinned event in its own zone, so this is what lets the UI
- * show the other side of the pair rather than making the user do the arithmetic.
- */
-fun EventForm.timesIn(target: TimeZone): Pair<LocalDateTime, LocalDateTime>? {
-    if (isAllDay) return null
-    val pinned = timezone?.let { runCatching { TimeZone.of(it) }.getOrNull() } ?: return null
-    if (pinned.id == target.id) return null
-    return start.toInstant(pinned).toLocalDateTime(target) to
-        end.toInstant(pinned).toLocalDateTime(target)
-}
-
 /**
  * The optional sections that hold a value in [form] — when editing, these
  * must be visible regardless of the user's default-fields setting, or the
@@ -245,13 +143,11 @@ fun EventForm.timesIn(target: TimeZone): Pair<LocalDateTime, LocalDateTime>? {
 fun EventForm.populatedFields(): Set<EventFormField> = buildSet {
     if (location.isNotBlank()) add(EventFormField.Location)
     if (description.isNotBlank()) add(EventFormField.Description)
-    if (timezone != null) add(EventFormField.Timezone)
     if (reminders.isNotEmpty()) add(EventFormField.Reminders)
     if (rrule != null) add(EventFormField.Recurrence)
     if (availability != Availability.Busy) add(EventFormField.Availability)
     if (accessLevel != AccessLevel.Default) add(EventFormField.Visibility)
     if (colorKey != null || color != null) add(EventFormField.Color)
-    if (attendees.isNotEmpty()) add(EventFormField.Attendees)
 }
 
 fun EventForm.problems(): Set<EventFormProblem> = buildSet {

app/src/main/java/de/jeanlucmakiola/calendula/domain/FontRole.kt

@@ -1,8 +0,0 @@
-package de.jeanlucmakiola.calendula.domain
-
-/**
- * The two Material 3 typeface roles a user can set independently (issue #19):
- * [BRAND] drives the display/headline styles (expression), [PLAIN] the
- * title/body/label styles (readability). Each defaults to the system typeface.
- */
-enum class FontRole { BRAND, PLAIN }

app/src/main/java/de/jeanlucmakiola/calendula/domain/InsertEventForm.kt

@@ -1,78 +0,0 @@
-package de.jeanlucmakiola.calendula.domain
-
-import kotlinx.datetime.LocalDate
-import kotlinx.datetime.LocalDateTime
-import kotlinx.datetime.LocalTime
-import kotlinx.datetime.TimeZone
-import kotlinx.datetime.toInstant
-import kotlinx.datetime.toLocalDateTime
-import kotlin.time.Duration.Companion.hours
-import kotlin.time.Instant
-
-/**
- * Build a prefilled [EventForm] from an `ACTION_INSERT` intent's extras (issue
- * #30). External apps and widgets (e.g. the Todo Agenda widget) launch the
- * calendar this way to create a new event, passing the fields as
- * [android.provider.CalendarContract] extras. Any field the intent omits falls
- * back to the same defaults the in-app "new event" uses — a timed start at the
- * next full hour, and a placeholder hour for a missing end that the form then
- * stretches to the default-duration setting (the intent is opened as
- * `ImportSource.InsertOpenEnded`, #54). [EventForm.calendarId] is left null so
- * it resolves to the last-used / first-writable calendar, exactly like the
- * `.ics` single-event and plain new-event paths.
- *
- * Pure (no Android types) so it is unit-testable; the intent parsing that reads
- * the extras lives in `MainActivity.insertFormOrNull`.
- */
-fun buildInsertEventForm(
-    beginMillis: Long?,
-    endMillis: Long?,
-    isAllDay: Boolean,
-    title: String?,
-    description: String?,
-    location: String?,
-    rrule: String?,
-    zone: TimeZone,
-    now: Instant,
-): EventForm {
-    val (start, end) = if (isAllDay) {
-        // All-day provider times are UTC midnights with an exclusive end; show
-        // the last covered day and keep placeholder wall-clock times in case the
-        // user switches the event to timed (mirrors EventDetail.toEditForm).
-        val startDate = beginMillis
-            ?.let { Instant.fromEpochMilliseconds(it).toLocalDateTime(TimeZone.UTC).date }
-            ?: now.toLocalDateTime(zone).date
-        val endDate = endMillis
-            ?.let { Instant.fromEpochMilliseconds(it).toLocalDateTime(TimeZone.UTC).date }
-            ?.let { exclusive -> maxOf(startDate, LocalDate.fromEpochDays(exclusive.toEpochDays() - 1)) }
-            ?: startDate
-        LocalDateTime(startDate, LocalTime(9, 0)) to LocalDateTime(endDate, LocalTime(10, 0))
-    } else {
-        val startTime = beginMillis
-            ?.let { Instant.fromEpochMilliseconds(it).toLocalDateTime(zone) }
-            ?: nextFullHour(now, zone)
-        val endTime = endMillis
-            ?.let { Instant.fromEpochMilliseconds(it).toLocalDateTime(zone) }
-            ?.takeIf { it >= startTime }
-            ?: (startTime.toInstant(zone) + 1.hours).toLocalDateTime(zone)
-        startTime to endTime
-    }
-    return EventForm(
-        calendarId = null,
-        title = title.orEmpty(),
-        isAllDay = isAllDay,
-        start = start,
-        end = end,
-        location = location.orEmpty(),
-        description = description.orEmpty(),
-        // Bare RRULE value (Events.RRULE convention); tolerate a leading "RRULE:"
-        // some callers include.
-        rrule = rrule?.removePrefix("RRULE:")?.takeIf { it.isNotBlank() },
-    )
-}
-
-private fun nextFullHour(now: Instant, zone: TimeZone): LocalDateTime {
-    val hourMillis = 3_600_000L
-    val rounded = (now.toEpochMilliseconds() / hourMillis + 1) * hourMillis
-    return Instant.fromEpochMilliseconds(rounded).toLocalDateTime(zone)
-}

app/src/main/java/de/jeanlucmakiola/calendula/domain/Models.kt

@@ -1,9 +1,5 @@
 package de.jeanlucmakiola.calendula.domain
 
-import kotlinx.datetime.LocalDate
-import kotlinx.datetime.TimeZone
-import kotlinx.datetime.toLocalDateTime
-import kotlin.time.Duration.Companion.milliseconds
 import kotlin.time.Instant
 
 data class CalendarSource(
@@ -12,11 +8,6 @@ data class CalendarSource(
     val accountName: String,
     val accountType: String,
     val color: Int,
-    /**
-     * The system's `Calendars.VISIBLE` flag — the single visibility model,
-     * deciding both what Calendula shows and whether this calendar plans
-     * reminders (#75). The drawer's filter sheet is a separate in-app declutter.
-     */
     val isVisibleInSystem: Boolean,
     /**
      * Whether events in this calendar can be created/edited/deleted
@@ -35,21 +26,6 @@ data class CalendarSource(
      * owns for its own calendars). Always null for synced calendars.
      */
     val description: String? = null,
-    /**
-     * A special-dates mirror calendar the app manages (birthdays/anniversaries
-     * from contacts). Its events' title/date/recurrence are owned by the sync,
-     * so it's hidden from the new-event calendar picker and its events lock those
-     * fields in the editor. Recognised by a durable provider marker, so it holds
-     * even after a backup restore clears the app's stored ids.
-     */
-    val isManaged: Boolean = false,
-    /**
-     * Whether the provider keeps this calendar's events on the device
-     * (`Calendars.SYNC_EVENTS`), independent of [isVisibleInSystem]. Says
-     * nothing about device-local calendars, which can hold events with it off.
-     * Read for the "not synced" row label (#76).
-     */
-    val syncsEvents: Boolean = true,
 )
 
 data class EventInstance(
@@ -64,39 +40,6 @@ data class EventInstance(
     val location: String?,
 )
 
-/**
- * Whether this event has finished relative to [now] — its end is at or before
- * the current instant. An in-progress event (already started but not yet ended)
- * is *not* considered ended. All-day events end at the exclusive next-midnight,
- * so they only count as ended once their day is fully over.
- */
-fun EventInstance.hasEnded(now: Instant): Boolean = end <= now
-
-/**
- * The zone this event's calendar dates live in: the device [zone] for timed
- * events, UTC for all-day ones, whose midnights would otherwise shift day
- * boundaries (#65, #82). Every surface naming an all-day date goes through here.
- */
-fun EventInstance.dateZone(zone: TimeZone): TimeZone =
-    if (isAllDay) TimeZone.UTC else zone
-
-/** The first calendar day this event occupies. */
-fun EventInstance.spanFirstDay(zone: TimeZone): LocalDate =
-    start.toLocalDateTime(dateZone(zone)).date
-
-/**
- * The last calendar day this event occupies. An event ending exactly at midnight
- * does not reach into that day, so resolve just before [EventInstance.end].
- */
-fun EventInstance.spanLastDay(zone: TimeZone): LocalDate {
-    val lastInstant = if (end > start) end - 1.milliseconds else start
-    return lastInstant.toLocalDateTime(dateZone(zone)).date
-}
-
-/** Whether this event occupies more than one calendar day in [zone]. */
-fun EventInstance.spansMultipleDays(zone: TimeZone): Boolean =
-    spanFirstDay(zone) != spanLastDay(zone)
-
 data class EventDetail(
     val instance: EventInstance,
     val description: String?,

app/src/main/java/de/jeanlucmakiola/calendula/domain/RecurrenceOccurrences.kt

@@ -1,106 +0,0 @@
-package de.jeanlucmakiola.calendula.domain
-
-import kotlinx.datetime.DateTimeUnit
-import kotlinx.datetime.DayOfWeek
-import kotlinx.datetime.LocalDate
-import kotlinx.datetime.isoDayNumber
-import kotlinx.datetime.minus
-import kotlinx.datetime.number
-import kotlinx.datetime.plus
-
-/**
- * The first [limit] dates a [SimpleRecurrence] fires on, starting at [start]
- * (DTSTART), for previewing a rule as dates instead of as words. A preview only,
- * kept to the shapes the picker can build; the provider stays the authority.
- *
- * Mirrors RFC 5545: [start] is always the first occurrence (§3.8.5.3), even when
- * the rule's own picks miss it; a monthly or yearly rule *skips* a period the
- * start day doesn't exist in rather than clamping; a weekly rule repeats in
- * blocks of `interval` weeks beginning on Monday (the default WKST, since
- * [toRRule] never writes one); [RecurrenceEnd.Count] counts real occurrences and
- * [RecurrenceEnd.Until] is inclusive.
- *
- * Returns fewer than [limit] dates when the series ends first, and an empty list
- * only when the rule yields nothing at all (an UNTIL before [start]).
- */
-fun SimpleRecurrence.upcomingOccurrences(start: LocalDate, limit: Int): List<LocalDate> {
-    if (limit <= 0) return emptyList()
-    val until = (end as? RecurrenceEnd.Until)?.date
-    val maxCount = (end as? RecurrenceEnd.Count)?.times ?: Int.MAX_VALUE
-    val wanted = minOf(limit, maxCount)
-    if (wanted <= 0) return emptyList()
-    if (until != null && start > until) return emptyList()
-
-    // DTSTART is in the recurrence set whatever the rule picks, so seed with it
-    // and let the walk skip anything landing on or before it.
-    val result = mutableListOf(start)
-    var period = 0
-    // Periods can yield nothing (a skipped 31st), so the cap counts periods
-    // examined rather than dates found.
-    while (result.size < wanted && period < MAX_PERIODS) {
-        for (date in occurrencesInPeriod(period, start)) {
-            if (date <= start) continue
-            if (until != null && date > until) return result
-            result += date
-            if (result.size == wanted) return result
-        }
-        period++
-    }
-    return result
-}
-
-/** The dates this rule's [period]-th repetition yields (empty when skipped). */
-private fun SimpleRecurrence.occurrencesInPeriod(period: Int, start: LocalDate): List<LocalDate> =
-    when (freq) {
-        RecurrenceFreq.Daily -> listOf(start.plus(period * interval, DateTimeUnit.DAY))
-        RecurrenceFreq.Weekly -> weeklyOccurrences(period, start)
-        RecurrenceFreq.Monthly -> {
-            val month = start.plus(period * interval, DateTimeUnit.MONTH)
-            // plus() clamps into the shorter month, but the rule skips such a
-            // period — so a clamped date means "not this month".
-            listOfNotNull(dateOrNull(month.year, month.month.number, start.day))
-        }
-        RecurrenceFreq.Yearly ->
-            listOfNotNull(dateOrNull(start.year + period * interval, start.month.number, start.day))
-    }
-
-/**
- * One weekly block: every picked weekday inside the week that begins
- * `period * interval` weeks after the start's own week, in weekday order. With
- * no picks the rule simply repeats the start's weekday.
- */
-private fun SimpleRecurrence.weeklyOccurrences(period: Int, start: LocalDate): List<LocalDate> {
-    if (byDays.isEmpty()) return listOf(start.plus(period * interval, DateTimeUnit.WEEK))
-    val daysIntoWeek = (start.dayOfWeek.isoDayNumber - DayOfWeek.MONDAY.isoDayNumber + DAYS_PER_WEEK) %
-        DAYS_PER_WEEK
-    val weekStart = start
-        .minus(daysIntoWeek, DateTimeUnit.DAY)
-        .plus(period * interval, DateTimeUnit.WEEK)
-    return byDays.sortedBy { it.isoDayNumber }.map { day ->
-        weekStart.plus(
-            (day.isoDayNumber - DayOfWeek.MONDAY.isoDayNumber + DAYS_PER_WEEK) % DAYS_PER_WEEK,
-            DateTimeUnit.DAY,
-        )
-    }
-}
-
-/**
- * Whether a run of [occurrences] starting at [start] leaves its starting year,
- * i.e. whether showing them without a year would be ambiguous — a yearly rule
- * would otherwise read as the same date repeated.
- */
-fun occurrencesSpanYears(occurrences: List<LocalDate>, start: LocalDate): Boolean =
-    occurrences.any { it.year != start.year } || occurrences.map { it.year }.distinct().size > 1
-
-/** [LocalDate] for a day-of-month that may not exist in that month; null if it doesn't. */
-private fun dateOrNull(year: Int, month: Int, day: Int): LocalDate? =
-    runCatching { LocalDate(year, month, day) }.getOrNull()
-
-private const val DAYS_PER_WEEK = 7
-
-/**
- * How many repetitions to examine before giving up: generous enough for the
- * sparsest rule the picker can build, bounded so a rule whose occurrences all
- * fall outside its own UNTIL can't spin.
- */
-private const val MAX_PERIODS = 2_000

app/src/main/java/de/jeanlucmakiola/calendula/domain/TimeZoneCatalog.kt

@@ -1,225 +0,0 @@
-package de.jeanlucmakiola.calendula.domain
-
-import java.text.Normalizer
-import java.time.Instant
-import java.time.ZoneId
-import java.time.format.TextStyle
-import java.util.Locale
-
-/**
- * One selectable zone, resolved for display at a given instant. [id] is the IANA
- * id we store in `EVENT_TIMEZONE` and show as the primary label (via [label]);
- * [shortName] its abbreviation ("CET", "WET", "UTC", or a "GMT+05:30" fallback);
- * [offsetMinutes] its offset. Both the abbreviation and the offset shift with
- * DST, so they're only meaningful next to the moment they were resolved for.
- *
- * [displayName] is the long localized name ("Central European Time"). It's kept
- * for search only — matching on it lets someone type "pacific" — and is *not*
- * displayed: spelled out next to the id it made the field too wide to fit.
- */
-data class TimeZoneOption(
-    val id: String,
-    val displayName: String,
-    val shortName: String,
-    val offsetMinutes: Int,
-) {
-    /** The id as the primary label, underscores undone ("America/New York"). */
-    val label: String get() = id.replace('_', ' ')
-
-    /** The trailing segment of the id ("Europe/Berlin" -> "Berlin"), underscores undone. */
-    val city: String get() = id.substringAfterLast('/').replace('_', ' ')
-
-    /** The leading segment ("Europe/Berlin" -> "Europe"); empty for bare ids like "UTC". */
-    val region: String get() = id.substringBeforeLast('/', missingDelimiterValue = "")
-
-    /**
-     * The four fields [filterTimeZones] matches on, normalized once here rather
-     * than per query. Normalizing is not cheap — NFD decomposition plus a combining-
-     * mark strip — and a search re-examines every option on every keystroke, so
-     * doing it at construction turns ~2400 normalizations per character into a few
-     * hundred plain `startsWith`/`contains` calls.
-     *
-     * Declared in the class body, so it stays out of `equals`/`hashCode`/`copy`:
-     * it is derived state, and two options with the same id are the same option.
-     */
-    internal val searchKeys: TimeZoneSearchKeys = TimeZoneSearchKeys(
-        city = city.normalizeForSearch(),
-        id = id.normalizeForSearch(),
-        displayName = displayName.normalizeForSearch(),
-        shortName = shortName.normalizeForSearch(),
-    )
-}
-
-/** Pre-normalized match targets for one [TimeZoneOption]. */
-internal data class TimeZoneSearchKeys(
-    val city: String,
-    val id: String,
-    val displayName: String,
-    val shortName: String,
-)
-
-private fun optionFor(
-    zone: ZoneId,
-    locale: Locale,
-    at: Instant,
-    regionOf: (String) -> String?,
-): TimeZoneOption = TimeZoneOption(
-    id = zone.id,
-    displayName = zone.getDisplayName(TextStyle.FULL, locale),
-    shortName = resolveAbbreviation(zone.id, zone.rules.isDaylightSavings(at), locale, regionOf),
-    offsetMinutes = zone.rules.getOffset(at).totalSeconds / 60,
-)
-
-/**
- * The zone abbreviation ("EDT", "CEST"), DST-correct at the resolved instant, or
- * a "GMT+05:30" form when no name exists.
- *
- * Two things make this fiddlier than it looks. First, it goes through
- * java.util.TimeZone, NOT java.time's "zzz" formatter: on Android the latter has
- * no short specific-zone names and degrades every zone to a "GMT-4" form (it
- * agrees with java.util only on desktop, which is why desktop can't catch it).
- * Second, ICU only surfaces the short name *commonly used in the display
- * locale's region* — a German-region English phone (en-DE) is shown "CEST" but
- * not "EDT", and an en-US phone the reverse. So ask in the display *language*
- * but the *zone's* region ("America/New_York" in en-US, "Europe/Berlin" in
- * en-DE) via [regionOf]. That covers almost everything; where a region still
- * yields no name (Athens in en-GR) the plain device locale sometimes does, so
- * try that next; failing both, the caller shows the offset.
- *
- * [regionOf] maps an IANA id to an ISO 3166 region and is injected because it
- * needs `android.icu`, which this pure-JVM module can't import. The default
- * (no region) leaves only the device-locale path — which is all a JVM test has
- * anyway, and enough there since desktop ICU isn't region-gated the same way.
- */
-private fun resolveAbbreviation(
-    id: String,
-    dst: Boolean,
-    locale: Locale,
-    regionOf: (String) -> String?,
-): String {
-    fun shortIn(loc: Locale): String =
-        java.util.TimeZone.getTimeZone(id).getDisplayName(dst, java.util.TimeZone.SHORT, loc)
-    val regional = regionOf(id)
-        ?.takeIf { it.length == 2 }
-        ?.let { shortIn(Locale(locale.language, it)) }
-    if (regional != null && !regional.looksLikeOffset()) return regional
-    // Either no region, or the region has no name for this zone: the device
-    // locale is the next-best shot, and the offset the last resort.
-    return shortIn(locale)
-}
-
-/** True for the offset-style names ICU returns when a zone has no abbreviation. */
-private fun String.looksLikeOffset(): Boolean = this == "UTC" || startsWith("GMT")
-
-/**
- * Every zone the JVM knows, resolved at [at]. [regionOf] (see
- * [resolveAbbreviation]) supplies the zone's region for the abbreviation.
- *
- * This is ~600 entries, each costing a localized display name plus up to two ICU
- * short-name lookups, so it is **not** cheap enough for the main thread — build
- * it off-thread once and filter the result with [filterTimeZones] rather than
- * rebuilding per keystroke.
- *
- * Bare three-letter ids ("EST", "CST6CDT") and the legacy SystemV tree are
- * dropped: they're aliases the tz database keeps for compatibility, they'd
- * double up the real zones in the list, and none of them is what a user means
- * when they pick a place.
- */
-fun timeZoneOptions(
-    locale: Locale = Locale.getDefault(),
-    at: Instant = Instant.now(),
-    regionOf: (String) -> String? = { null },
-): List<TimeZoneOption> = ZoneId.getAvailableZoneIds()
-    .asSequence()
-    .filter { it.contains('/') && !it.startsWith("SystemV/") }
-    .map { optionFor(ZoneId.of(it), locale, at, regionOf) }
-    .sortedWith(compareBy({ it.region }, { it.city }))
-    .toList()
-
-/**
- * Resolve a single [id] the same way [timeZoneOptions] would, or null if the tz
- * database doesn't know it — for labelling one known zone without paying to
- * build the whole catalogue.
- */
-fun timeZoneOptionOf(
-    id: String,
-    locale: Locale = Locale.getDefault(),
-    at: Instant = Instant.now(),
-    regionOf: (String) -> String? = { null },
-): TimeZoneOption? {
-    val zone = runCatching { ZoneId.of(id) }.getOrNull() ?: return null
-    return optionFor(zone, locale, at, regionOf)
-}
-
-/**
- * The short descriptor shown beneath the id, e.g. "CET · GMT+01:00". "UTC" reads
- * fine alone; any other offset-shaped name is normalised to our own GMT form so
- * the offset isn't stated twice in ICU's spelling and ours.
- */
-fun zoneDescriptor(option: TimeZoneOption): String {
-    val abbrev = option.shortName
-    return when {
-        abbrev == "UTC" -> "UTC"
-        abbrev.startsWith("GMT") -> formatGmtOffset(option.offsetMinutes)
-        else -> "$abbrev · ${formatGmtOffset(option.offsetMinutes)}"
-    }
-}
-
-/**
- * [options] matching [query], best matches first; a blank query returns the list
- * unchanged. Matching is accent- and case-insensitive and treats underscores as
- * spaces, so "sao paulo" finds "America/Sao_Paulo".
- *
- * Ranking puts a city that *starts with* the query above one that merely
- * contains it — typing "col" should reach Colombo before Turks_and_Caicos —
- * and the id is matched ahead of the localized name so a user who knows the
- * IANA id gets it first. An exact abbreviation hit ("CEST") ranks just under a
- * city prefix, so typing an abbreviation surfaces every zone that shows it
- * (all the CEST zones together); the abbreviation is the one resolved for the
- * display region, i.e. what the row actually shows.
- */
-fun filterTimeZones(options: List<TimeZoneOption>, query: String): List<TimeZoneOption> {
-    val needle = query.normalizeForSearch()
-    if (needle.isEmpty()) return options
-    return options
-        .mapNotNull { option ->
-            val keys = option.searchKeys
-            val rank = when {
-                keys.city.startsWith(needle) -> 0
-                keys.shortName == needle -> 1
-                keys.displayName.startsWith(needle) -> 2
-                keys.shortName.startsWith(needle) -> 3
-                keys.city.contains(needle) -> 4
-                keys.id.contains(needle) -> 5
-                keys.displayName.contains(needle) -> 6
-                else -> return@mapNotNull null
-            }
-            rank to option
-        }
-        .sortedWith(compareBy({ it.first }, { it.second.city }))
-        .map { it.second }
-}
-
-/** Unicode combining marks — what NFD decomposition leaves an accent as. */
-private val COMBINING_MARKS = Regex("\\p{Mn}+")
-
-/**
- * Lowercased, accent-stripped, underscores and slashes flattened to spaces, so
- * a query types the way a place is spoken rather than the way the tz database
- * spells it.
- */
-private fun String.normalizeForSearch(): String =
-    Normalizer.normalize(this, Normalizer.Form.NFD)
-        .replace(COMBINING_MARKS, "")
-        .replace('_', ' ')
-        .replace('/', ' ')
-        .lowercase(Locale.ROOT)
-        .trim()
-
-/** "GMT+02:00" / "GMT-05:30" / "GMT" — the offset as shown next to a zone. */
-fun formatGmtOffset(offsetMinutes: Int): String {
-    if (offsetMinutes == 0) return "GMT"
-    val sign = if (offsetMinutes < 0) '-' else '+'
-    val abs = kotlin.math.abs(offsetMinutes)
-    return "GMT%c%02d:%02d".format(sign, abs / 60, abs % 60)
-}

app/src/main/java/de/jeanlucmakiola/calendula/domain/color/EventTone.kt

@@ -1,124 +0,0 @@
-package de.jeanlucmakiola.calendula.domain.color
-
-/**
- * The colours one calendar's identity resolves to in one theme.
- *
- * The app paints a calendar's colour in two structurally different places, and
- * they want opposite things:
- *
- *  - a **[container]** sits behind text (week and day blocks, month bars, widget
- *    rows, picker swatches), so it has to contrast with its own ink;
- *  - an **[accent]** is a mark on an ordinary app surface (day dots, agenda and
- *    search stripes, calendar icon tints, the detail header), so it has to
- *    contrast with the *surface* instead.
- *
- * Painting both from one colour is what made this hard to get right: deep enough
- * to carry white text is too dark to see as a dot on a dark surface, and light
- * enough to show up there is too pale to carry white text. Splitting them lets
- * each be pinned to the lightness its job needs, while hue and chroma — the parts
- * that actually say *which calendar this is* — stay shared, so the two roles
- * still read as the same colour.
- */
-data class EventTone(
-    val container: Int,
-    val onContainer: Int,
-    val accent: Int,
-)
-
-/**
- * Resolve [rawArgb] for the current theme.
- *
- * With [harmonise] on, hue and chroma are kept and lightness is re-pinned per
- * role, which is what makes the ink predictable: every container lands at the
- * same perceptual lightness, so one ink colour serves every hue at ≥ 6:1. With
- * it off the provider's colour is painted verbatim — the sync source's own look,
- * as DAVx5/CalDAV users expect — and the ink is then chosen per colour, since
- * nothing constrains what the provider sends.
- */
-fun eventTone(rawArgb: Int, dark: Boolean, harmonise: Boolean): EventTone {
-    val opaque = rawArgb or 0xFF000000.toInt()
-    val raw = oklchOf(opaque)
-    if (!harmonise) {
-        return EventTone(
-            container = opaque,
-            onContainer = inkFor(raw.lightness),
-            accent = opaque,
-        )
-    }
-    // A near-grey source has no hue worth keeping, so it stays grey rather than
-    // being pushed to an arbitrary one; everything else is held inside a band
-    // that keeps calendars apart without going neon.
-    val chroma = if (raw.chroma < GREY_CHROMA) 0f else raw.chroma.coerceIn(MIN_CHROMA, MAX_CHROMA)
-    // Two poles rather than one. Forcing every hue deep is what turned the warm,
-    // naturally light ones muddy — a dark orange is brown and a dark yellow is
-    // olive, which is a fact about those hues, not a tuning miss. So a colour is
-    // sent to whichever pole it already sits nearer: most land deep and carry
-    // white ink, while genuinely light sources (yellows, creams, pale tints)
-    // stay light and carry dark ink, keeping the character that made them
-    // recognisable. Either way the colour is pulled clear of the middle, where
-    // neither ink reads well — which was the original fault.
-    val staysLight = raw.lightness >= LIGHT_POLE_THRESHOLD
-    val containerLightness = when {
-        staysLight && dark -> LIGHT_CONTAINER_LIGHTNESS_DARK
-        staysLight -> LIGHT_CONTAINER_LIGHTNESS_LIGHT
-        dark -> CONTAINER_LIGHTNESS_DARK
-        else -> CONTAINER_LIGHTNESS_LIGHT
-    }
-    // The accent takes no pole: it is a mark on the app's surface, so it has to
-    // contrast with that surface whichever way its container went.
-    val accentLightness = if (dark) ACCENT_LIGHTNESS_DARK else ACCENT_LIGHTNESS_LIGHT
-    return EventTone(
-        container = Oklch(containerLightness, chroma, raw.hue).toArgb(),
-        onContainer = inkFor(containerLightness),
-        accent = Oklch(accentLightness, chroma, raw.hue).toArgb(),
-    )
-}
-
-/**
- * White or black ink for a background of the given perceptual [lightness].
- *
- * Derived rather than hardcoded so it stays right for raw provider colours,
- * where lightness is whatever the sync source sent. For harmonised containers it
- * is constant by construction — that is the point of pinning the lightness.
- */
-fun inkFor(lightness: Float): Int =
-    if (lightness < INK_FLIP_LIGHTNESS) 0xFFFFFFFF.toInt() else 0xFF000000.toInt()
-
-/**
- * Lightness at which white ink overtakes black. Sits above the midpoint because
- * lightness is perceptual: a colour has to be distinctly light before black wins.
- */
-const val INK_FLIP_LIGHTNESS = 0.62f
-
-/**
- * Raw lightness at or above which a colour keeps its light character instead of
- * being pushed deep. Set high enough that oranges and warm reds still go deep —
- * a burnt orange reads as orange, where a dark yellow does not read as yellow —
- * so only the genuinely pale sources take the light pole.
- */
-const val LIGHT_POLE_THRESHOLD = 0.72f
-
-/** Container lightness: deep enough that white ink clears 5.5:1 on every hue. */
-const val CONTAINER_LIGHTNESS_LIGHT = 0.45f
-
-/** Same in dark mode, a shade lighter so a block separates from the surface. */
-const val CONTAINER_LIGHTNESS_DARK = 0.48f
-
-/** Light-pole container: pale enough that dark ink clears 11:1 on every hue. */
-const val LIGHT_CONTAINER_LIGHTNESS_LIGHT = 0.88f
-
-/** Same in dark mode, held down a little so a pale block doesn't glare. */
-const val LIGHT_CONTAINER_LIGHTNESS_DARK = 0.84f
-
-/** Accent lightness: dark enough to read as a mark on a pale surface. */
-const val ACCENT_LIGHTNESS_LIGHT = 0.55f
-
-/** Same against a dark surface, where the mark has to be the light one. */
-const val ACCENT_LIGHTNESS_DARK = 0.78f
-
-/** Below this chroma a colour counts as grey and keeps no hue. */
-const val GREY_CHROMA = 0.02f
-
-/** Chroma band for harmonised colours: distinct, but never electric. */
-const val MIN_CHROMA = 0.07f
-const val MAX_CHROMA = 0.16f

app/src/main/java/de/jeanlucmakiola/calendula/domain/color/Oklch.kt

@@ -1,119 +0,0 @@
-package de.jeanlucmakiola.calendula.domain.color
-
-import kotlin.math.atan2
-import kotlin.math.cbrt
-import kotlin.math.cos
-import kotlin.math.hypot
-import kotlin.math.pow
-import kotlin.math.sin
-import kotlin.math.sqrt
-
-/**
- * A colour in Oklch — Oklab's cylindrical form: perceptual [lightness], [chroma]
- * (colourfulness) and [hue] in degrees.
- *
- * The point of using it over HSV is that its lightness axis matches what the eye
- * calls brightness. HSV's "value" does not: at a single pinned value the hues
- * spread across relative luminance 0.10 (indigo) to 0.45 (yellow), which is why
- * pinning value produced fills that needed different ink per hue. Pin Oklch
- * lightness instead and every hue lands at the same apparent brightness, so one
- * ink serves all of them.
- *
- * [lightness] runs 0 (black) to 1 (white); [chroma] is 0 (grey) to about 0.32 at
- * the sRGB limit.
- */
-data class Oklch(val lightness: Float, val chroma: Float, val hue: Float) {
-
-    /**
-     * Perceptual distance to [other] — plain Euclidean in Oklab, which is what
-     * Oklab is built for (unlike CIE Lab, where CIE76 is known to misjudge
-     * saturated blues).
-     */
-    fun distanceTo(other: Oklch): Float {
-        val (a1, b1) = chroma * cosDeg(hue) to chroma * sinDeg(hue)
-        val (a2, b2) = other.chroma * cosDeg(other.hue) to other.chroma * sinDeg(other.hue)
-        val dl = (lightness - other.lightness).toDouble()
-        return sqrt(dl * dl + (a1 - a2).pow(2) + (b1 - b2).pow(2)).toFloat()
-    }
-}
-
-/** Read [argb]'s opaque colour as Oklch. */
-fun oklchOf(argb: Int): Oklch {
-    val r = toLinear(((argb shr 16) and 0xFF) / 255.0)
-    val g = toLinear(((argb shr 8) and 0xFF) / 255.0)
-    val b = toLinear((argb and 0xFF) / 255.0)
-
-    val l = cbrt(0.4122214708 * r + 0.5363325363 * g + 0.0514459929 * b)
-    val m = cbrt(0.2119034982 * r + 0.6806995451 * g + 0.1073969566 * b)
-    val s = cbrt(0.0883024619 * r + 0.2817188376 * g + 0.6299787005 * b)
-
-    val lightness = 0.2104542553 * l + 0.7936177850 * m - 0.0040720468 * s
-    val aAxis = 1.9779984951 * l - 2.4285922050 * m + 0.4505937099 * s
-    val bAxis = 0.0259040371 * l + 0.7827717662 * m - 0.8086757660 * s
-
-    val hue = (Math.toDegrees(atan2(bAxis, aAxis)) + 360.0) % 360.0
-    return Oklch(lightness.toFloat(), hypot(aAxis, bAxis).toFloat(), hue.toFloat())
-}
-
-/**
- * The opaque sRGB colour for this Oklch, gamut-mapped: most of the Oklch cylinder
- * falls outside sRGB, so a colour that does not fit keeps its lightness and hue
- * and gives up chroma until it does. Holding lightness is what matters here —
- * it's the axis the contrast guarantees rest on.
- */
-fun Oklch.toArgb(): Int {
-    val fitted = if (inSrgb(lightness, chroma, hue)) {
-        chroma
-    } else {
-        var low = 0f
-        var high = chroma
-        repeat(GAMUT_STEPS) {
-            val mid = (low + high) / 2f
-            if (inSrgb(lightness, mid, hue)) low = mid else high = mid
-        }
-        low
-    }
-    val (r, g, b) = linearSrgbOf(lightness, fitted, hue)
-    return 0xFF shl 24 or
-        (channel(r) shl 16) or
-        (channel(g) shl 8) or
-        channel(b)
-}
-
-private fun linearSrgbOf(lightness: Float, chroma: Float, hue: Float): Triple<Double, Double, Double> {
-    val a = chroma * cosDeg(hue)
-    val b = chroma * sinDeg(hue)
-    val l = (lightness + 0.3963377774 * a + 0.2158037573 * b).pow(3)
-    val m = (lightness - 0.1055613458 * a - 0.0638541728 * b).pow(3)
-    val s = (lightness - 0.0894841775 * a - 1.2914855480 * b).pow(3)
-    return Triple(
-        4.0767416621 * l - 3.3077115913 * m + 0.2309699292 * s,
-        -1.2684380046 * l + 2.6097574011 * m - 0.3413193965 * s,
-        -0.0041960863 * l - 0.7034186147 * m + 1.7076147010 * s,
-    )
-}
-
-private fun inSrgb(lightness: Float, chroma: Float, hue: Float): Boolean {
-    val (r, g, b) = linearSrgbOf(lightness, chroma, hue)
-    return r in -GAMUT_EPSILON..(1.0 + GAMUT_EPSILON) &&
-        g in -GAMUT_EPSILON..(1.0 + GAMUT_EPSILON) &&
-        b in -GAMUT_EPSILON..(1.0 + GAMUT_EPSILON)
-}
-
-private fun channel(linear: Double): Int =
-    (toSrgb(linear.coerceIn(0.0, 1.0)) * 255.0).toInt().coerceIn(0, 255)
-
-private fun toLinear(c: Double): Double =
-    if (c <= 0.04045) c / 12.92 else ((c + 0.055) / 1.055).pow(2.4)
-
-private fun toSrgb(c: Double): Double =
-    if (c <= 0.0031308) 12.92 * c else 1.055 * c.pow(1.0 / 2.4) - 0.055
-
-private fun cosDeg(deg: Float) = cos(Math.toRadians(deg.toDouble()))
-private fun sinDeg(deg: Float) = sin(Math.toRadians(deg.toDouble()))
-
-/** Bisection steps when pulling an out-of-gamut colour back into sRGB. */
-private const val GAMUT_STEPS = 24
-
-/** Slack for the gamut test, so rounding at the boundary doesn't reject a fit. */
-private const val GAMUT_EPSILON = 1e-4

app/src/main/java/de/jeanlucmakiola/calendula/domain/contacts/ContactSpecialDate.kt

@@ -1,122 +0,0 @@
-package de.jeanlucmakiola.calendula.domain.contacts
-
-import java.time.LocalDate
-
-/**
- * The kinds of contact "special date" Calendula mirrors into local calendars.
- * Each kind gets its own local calendar, so it inherits per-calendar colour,
- * visibility and reminder defaults for free. See
- * docs/design/contact-special-dates.md.
- */
-enum class SpecialDateType {
-    Birthday,
-    Anniversary,
-
-    /** Everything else — a contact "Event" that is neither birthday nor anniversary. */
-    Custom,
-}
-
-/**
- * One dated event read from a device contact (a `ContactsContract` `Event`
- * row). The [lookupKey] is the stable contact identity used to reconcile the
- * mirror without duplicating; [year] is null when the contact stored the date
- * without one (`--MM-dd`), in which case age can't be shown.
- */
-data class ContactSpecialDate(
-    val lookupKey: String,
-    val displayName: String,
-    val type: SpecialDateType,
-    val month: Int,
-    val day: Int,
-    val year: Int?,
-    /** The contact's custom label for a [SpecialDateType.Custom] date, if any. */
-    val label: String? = null,
-)
-
-/** The parsed month/day (+ optional year) of a contact date. */
-data class ContactDateParts(val year: Int?, val month: Int, val day: Int)
-
-/**
- * A fixed leap year to validate and anchor year-less dates against, so that a
- * `--02-29` birthday is representable (and, once anchored, only recurs in leap
- * years — matching how the calendar provider expands a yearly Feb-29 series).
- */
-const val YEARLESS_ANCHOR_YEAR = 1972
-
-/**
- * Parse a `ContactsContract.CommonDataKinds.Event.START_DATE` value into its
- * calendar parts, or null if it isn't a usable date. Handles the three shapes
- * seen in the wild:
- * - full `yyyy-MM-dd` (year known),
- * - year-less `--MM-dd` (year null),
- * - compact `yyyyMMdd`.
- *
- * A date that names an impossible day (e.g. `1999-02-29`) is rejected. Pure, so
- * it's unit-tested without a device.
- */
-fun parseContactEventDate(raw: String?): ContactDateParts? {
-    val s = raw?.trim().orEmpty()
-    if (s.isEmpty()) return null
-
-    // Year-less: "--MM-dd" or "--MMdd".
-    if (s.startsWith("--")) {
-        val (m, d) = parseMonthDay(s.substring(2)) ?: return null
-        return validated(null, m, d)
-    }
-
-    if (s.contains('-')) {
-        val parts = s.split('-').filter { it.isNotEmpty() }
-        return when (parts.size) {
-            // "yyyy-MM-dd" — but a leading '-' would have dropped the empty
-            // first part, so require the first token to look like a year.
-            3 -> if (s.startsWith('-')) null else validated(
-                year = parts[0].toIntOrNull() ?: return null,
-                month = parts[1].toIntOrNull() ?: return null,
-                day = parts[2].toIntOrNull() ?: return null,
-            )
-            // Year-less "MM-dd" without the "--" prefix.
-            2 -> validated(
-                year = null,
-                month = parts[0].toIntOrNull() ?: return null,
-                day = parts[1].toIntOrNull() ?: return null,
-            )
-            else -> null
-        }
-    }
-
-    // Compact "yyyyMMdd".
-    if (s.length == 8 && s.all { it.isDigit() }) {
-        return validated(
-            year = s.substring(0, 4).toInt(),
-            month = s.substring(4, 6).toInt(),
-            day = s.substring(6, 8).toInt(),
-        )
-    }
-
-    return null
-}
-
-/** "MM-dd" or compact "MMdd". */
-private fun parseMonthDay(rest: String): Pair<Int, Int>? {
-    if (rest.contains('-')) {
-        val p = rest.split('-').filter { it.isNotEmpty() }
-        if (p.size != 2) return null
-        return (p[0].toIntOrNull() ?: return null) to (p[1].toIntOrNull() ?: return null)
-    }
-    if (rest.length == 4 && rest.all { it.isDigit() }) {
-        return rest.substring(0, 2).toInt() to rest.substring(2, 4).toInt()
-    }
-    return null
-}
-
-/**
- * Confirm month/day form a real calendar date (validated against the actual
- * year when known, otherwise the leap anchor so `02-29` survives).
- */
-private fun validated(year: Int?, month: Int, day: Int): ContactDateParts? {
-    if (month !in 1..12 || day !in 1..31) return null
-    val checkYear = year ?: YEARLESS_ANCHOR_YEAR
-    return runCatching { LocalDate.of(checkYear, month, day) }
-        .map { ContactDateParts(year, month, day) }
-        .getOrNull()
-}

app/src/main/java/de/jeanlucmakiola/calendula/domain/contacts/SpecialDateFormatting.kt

@@ -1,65 +0,0 @@
-package de.jeanlucmakiola.calendula.domain.contacts
-
-import kotlinx.datetime.LocalDate
-
-/**
- * Prefix of every managed-event `UID_2445`. Distinguishes mirror events from
- * user-created ones (which carry a random `<uuid>@calendula` UID), so the sync
- * only ever reconciles — and never deletes — events it actually owns.
- */
-const val MANAGED_UID_PREFIX = "contact-"
-
-/**
- * The deterministic `Events.UID_2445` that ties a mirrored event to its source
- * contact date. Stable across syncs (the reconciliation key), namespaced by
- * type so the same contact's birthday and anniversary never collide, and — when
- * a [discriminator] is given — by it too, so two Custom dates on one contact
- * (e.g. "Wedding" and "Graduation") get distinct events instead of clobbering
- * each other.
- */
-fun managedEventUid(type: SpecialDateType, lookupKey: String, discriminator: String? = null): String {
-    val disc = discriminator?.takeIf { it.isNotBlank() }?.let { ":$it" }.orEmpty()
-    return "$MANAGED_UID_PREFIX${type.name.lowercase()}:$lookupKey$disc@calendula"
-}
-
-/**
- * The reconciliation key for this date's mirrored event. Birthdays/anniversaries
- * are one-per-contact, so they key on the contact alone; a [SpecialDateType.Custom]
- * date adds a discriminator (its label, else its month-day) so distinct custom
- * dates on one contact don't collapse into a single event.
- */
-fun ContactSpecialDate.managedUid(): String =
-    managedEventUid(type, lookupKey, customDiscriminator())
-
-private fun ContactSpecialDate.customDiscriminator(): String? =
-    if (type == SpecialDateType.Custom) {
-        label?.trim()?.lowercase()?.ifBlank { null } ?: "%02d-%02d".format(month, day)
-    } else {
-        null
-    }
-
-/**
- * The all-day date the recurring `FREQ=YEARLY` series is anchored at: the real
- * date when the year is known (so age can be derived), otherwise the month/day
- * on a fixed leap anchor year so a `--02-29` date stays representable and the
- * anchor never drifts between syncs.
- */
-fun ContactSpecialDate.anchorDate(): LocalDate =
-    LocalDate(year ?: YEARLESS_ANCHOR_YEAR, month, day)
-
-/**
- * Render a title [template] for a contact, substituting `{name}` and `{year}`
- * (the source year — a birthday's birth year or an anniversary's start year;
- * empty when [year] is null). Unlike an age, the year is static and correct on
- * every occurrence of the yearly event. Collapses the whitespace an empty
- * `{year}` may leave behind, so "{name}'s birthday ({year})" degrades cleanly to
- * "Jane's birthday" when no year is known.
- */
-fun renderSpecialDateTitle(template: String, name: String, year: Int?): String =
-    template
-        .replace("{name}", name)
-        .replace("{year}", year?.toString().orEmpty())
-        // Drop an empty "()" left by an unresolved {year}, then tidy spacing.
-        .replace(Regex("""\(\s*\)"""), "")
-        .replace(Regex("""\s+"""), " ")
-        .trim()

app/src/main/java/de/jeanlucmakiola/calendula/domain/reminders/ReminderPlan.kt

@@ -1,191 +0,0 @@
-package de.jeanlucmakiola.calendula.domain.reminders
-
-import java.time.Instant
-import java.time.LocalDate
-import java.time.LocalTime
-import java.time.ZoneId
-import java.time.ZoneOffset
-import java.time.temporal.ChronoUnit
-
-/**
- * Pure decision layer of in-house reminder delivery (#75): instances and reminder
- * offsets in, fire instants out. No provider, no clock. See docs/ARCHITECTURE.md.
- */
-
-/** An occurrence that reminders can hang off, flattened out of `Instances`. */
-data class ReminderEventInstance(
-    val eventId: Long,
-    val calendarId: Long,
-    val beginMillis: Long,
-    val endMillis: Long,
-    val title: String,
-    val location: String?,
-    val isAllDay: Boolean,
-)
-
-/**
- * One occurrence paired with one of its reminder offsets, and the instant that
- * pairing has to fire at.
- */
-data class PlannedReminder(
-    val instance: ReminderEventInstance,
-    val minutes: Int,
-    val alarmMillis: Long,
-) {
-    /**
-     * Stable identity, keying the notification tag and the snooze/dismiss
-     * `PendingIntent`s. Survives reboot, re-scan and reinstall.
-     */
-    val key: Long = key(instance.eventId, instance.beginMillis, minutes)
-
-    private companion object {
-        fun key(eventId: Long, beginMillis: Long, minutes: Int): Long {
-            var h = eventId * 1_000_003L
-            h = (h xor beginMillis) * 31L
-            return h + minutes
-        }
-    }
-}
-
-/** What one scan concluded: post these now, and wake up again at [nextAlarmMillis]. */
-data class ReminderSchedule(
-    val due: List<PlannedReminder>,
-    val nextAlarmMillis: Long,
-)
-
-private const val MILLIS_PER_MINUTE = 60_000L
-private const val MINUTES_PER_DAY = 1_440
-
-/**
- * Pair every instance with each of its event's reminder offsets.
- *
- * Timed occurrences fire at `begin − minutes`. All-day ones read the offset only
- * for *which day* it means ([allDayLeadDays]) and take the hour from
- * [allDayTimeMinutes], recomposed against each occurrence's own date in [zone].
- * Duplicate offsets in [minutesByEvent] collapse.
- */
-fun planReminders(
-    instances: List<ReminderEventInstance>,
-    minutesByEvent: Map<Long, List<Int>>,
-    zone: ZoneId,
-    allDayTimeMinutes: Int,
-): List<PlannedReminder> = instances.flatMap { instance ->
-    minutesByEvent[instance.eventId].orEmpty().distinct().map { minutes ->
-        PlannedReminder(
-            instance = instance,
-            minutes = minutes,
-            alarmMillis = if (instance.isAllDay) {
-                allDayAlarmMillis(instance.beginMillis, minutes, zone, allDayTimeMinutes)
-            } else {
-                instance.beginMillis - minutes * MILLIS_PER_MINUTE
-            },
-        )
-    }
-}
-
-/** UTC midnight of an all-day occurrence, as the calendar date it stands for. */
-private fun allDayDate(beginMillis: Long): LocalDate =
-    Instant.ofEpochMilli(beginMillis).atZone(ZoneOffset.UTC).toLocalDate()
-
-/**
- * How many whole days before its occurrence a raw all-day offset means.
- *
- * Our own rows fold the wanted hour into the offset, so the local date of the
- * encoded instant is the answer. A plain multiple of 1440 is a foreign bare lead
- * time and taken at face value instead — unless the instant lands on the hour the
- * setting names (within [NAMED_HOUR_TOLERANCE_MINUTES], for DST drift), where the
- * encodings collide and the tie goes to our own reading.
- *
- * Also used by
- * [de.jeanlucmakiola.calendula.data.calendar.fromProviderAllDayMinutes] for
- * display, so screen and notification agree.
- */
-internal fun allDayLeadDays(
-    rawMinutes: Int,
-    startDate: LocalDate,
-    zone: ZoneId,
-    allDayTimeMinutes: Int,
-): Long {
-    val utcMidnight = startDate.atStartOfDay(ZoneOffset.UTC).toInstant().toEpochMilli()
-    val encoded = Instant.ofEpochMilli(utcMidnight - rawMinutes * MILLIS_PER_MINUTE).atZone(zone)
-    val minutesFromNamedHour = encoded.toLocalTime().let {
-        val delta = (it.hour * 60 + it.minute - allDayTimeMinutes).mod(MINUTES_PER_DAY)
-        minOf(delta, MINUTES_PER_DAY - delta)
-    }
-    if (rawMinutes % MINUTES_PER_DAY == 0 && minutesFromNamedHour > NAMED_HOUR_TOLERANCE_MINUTES) {
-        return (rawMinutes / MINUTES_PER_DAY).toLong()
-    }
-    return ChronoUnit.DAYS.between(encoded.toLocalDate(), startDate)
-}
-
-/** DST drift a row written in the other phase carries, rounded up past Lord Howe's half hour. */
-private const val NAMED_HOUR_TOLERANCE_MINUTES = 90
-
-private fun allDayAlarmMillis(
-    beginMillis: Long,
-    rawMinutes: Int,
-    zone: ZoneId,
-    allDayTimeMinutes: Int,
-): Long = allDayDate(beginMillis)
-    .minusDays(allDayLeadDays(rawMinutes, allDayDate(beginMillis), zone, allDayTimeMinutes))
-    .atTime(LocalTime.of(allDayTimeMinutes / 60, allDayTimeMinutes % 60))
-    .atZone(zone)
-    .toInstant()
-    .toEpochMilli()
-
-/**
- * Split [planned] into what is due now and when to wake up next.
- *
- * Due means the fire instant falls in `(lastFiredMillis, nowMillis]`, so a scan
- * running twice cannot post twice while a late one still catches up. Reminders
- * whose event has ended are dropped ([isStillRelevant]). [nextAlarmMillis] is
- * capped at [horizonMillis] so the lookahead window keeps rolling forward.
- */
-fun scheduleReminders(
-    planned: List<PlannedReminder>,
-    lastFiredMillis: Long,
-    nowMillis: Long,
-    horizonMillis: Long,
-): ReminderSchedule {
-    val due = planned
-        .filter { it.alarmMillis in (lastFiredMillis + 1)..nowMillis }
-        .filter { it.instance.isStillRelevant(nowMillis) }
-        .distinctBy { it.key }
-        .sortedWith(compareBy({ it.instance.beginMillis }, { it.key }))
-    val nextPending = planned
-        .filter { it.alarmMillis > nowMillis }
-        .minOfOrNull { it.alarmMillis }
-    return ReminderSchedule(
-        due = due,
-        nextAlarmMillis = minOf(nextPending ?: horizonMillis, horizonMillis),
-    )
-}
-
-/**
- * Still worth showing while the occurrence has not ended. Falls back to the
- * begin time when the end is unknown (0L).
- */
-fun ReminderEventInstance.isStillRelevant(nowMillis: Long): Boolean =
-    (endMillis.takeIf { it > 0L } ?: beginMillis) >= nowMillis
-
-/**
- * The watermark a scan at [nowMillis] should measure against. A first-ever scan
- * claims the present rather than replaying everything since the epoch; a
- * watermark in the future (clock moved back) is clamped so it can't silence
- * every reminder until real time catches up.
- */
-fun reminderWatermark(lastScanMillis: Long?, nowMillis: Long): Long =
-    lastScanMillis?.coerceAtMost(nowMillis) ?: nowMillis
-
-/**
- * How far ahead instances must be queried: the plain lookahead plus the longest
- * reminder offset, so a "two weeks before" is planned before it comes due. The
- * stretch is capped at [MAX_REMINDER_LEAD_MILLIS] — `maxReminderMinutes` is the
- * largest row in the whole provider, and a nonsense one would otherwise make
- * every scan expand every series over years.
- */
-fun reminderQueryHorizon(lookaheadMillis: Long, maxReminderMinutes: Int): Long =
-    lookaheadMillis + (maxReminderMinutes * MILLIS_PER_MINUTE).coerceIn(0L, MAX_REMINDER_LEAD_MILLIS)
-
-/** Longest reminder offset a scan stretches its query window for — one year. */
-const val MAX_REMINDER_LEAD_MILLIS = 365L * 24 * 60 * 60 * 1000

app/src/main/java/de/jeanlucmakiola/calendula/qs/NewEventTileService.kt

@@ -1,43 +0,0 @@
-package de.jeanlucmakiola.calendula.qs
-
-import android.app.PendingIntent
-import android.os.Build
-import android.service.quicksettings.TileService
-import de.jeanlucmakiola.calendula.MainActivity
-import kotlinx.datetime.TimeZone
-import kotlinx.datetime.toLocalDateTime
-import kotlin.time.Clock
-
-/**
- * Quick Settings tile: tapping it opens the create-event form on today — the
- * same action as the launcher "New event" shortcut and the agenda widget's "+".
- * A stateless action tile, so there is no on/off state to keep in sync.
- */
-class NewEventTileService : TileService() {
-
-    // The pre-34 branch intentionally uses the deprecated Intent overload: it is
-    // the only form available below UpsideDownCake, and is reached only there.
-    @Suppress("DEPRECATION", "StartActivityAndCollapseDeprecated")
-    override fun onClick() {
-        super.onClick()
-        val today = Clock.System.now()
-            .toLocalDateTime(TimeZone.currentSystemDefault()).date
-        val intent = MainActivity.openCreateIntent(this, today)
-        // Launch only once the device is unlocked: creating an event behind the
-        // keyguard makes no sense, and the shade can't start an activity over a
-        // locked screen anyway.
-        unlockAndRun {
-            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.UPSIDE_DOWN_CAKE) {
-                val pending = PendingIntent.getActivity(
-                    this,
-                    0,
-                    intent,
-                    PendingIntent.FLAG_IMMUTABLE or PendingIntent.FLAG_UPDATE_CURRENT,
-                )
-                startActivityAndCollapse(pending)
-            } else {
-                startActivityAndCollapse(intent)
-            }
-        }
-    }
-}

app/src/main/java/de/jeanlucmakiola/calendula/ui/CalendarHost.kt

@@ -1,7 +1,5 @@
 package de.jeanlucmakiola.calendula.ui
 
-import androidx.activity.compose.BackHandler
-import androidx.compose.animation.AnimatedContent
 import androidx.compose.animation.AnimatedVisibility
 import androidx.compose.animation.fadeIn
 import androidx.compose.animation.fadeOut
@@ -14,30 +12,20 @@ import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
-import androidx.compose.runtime.saveable.listSaver
 import androidx.compose.runtime.saveable.rememberSaveable
 import androidx.compose.runtime.setValue
 import androidx.compose.ui.Modifier
-import androidx.hilt.navigation.compose.hiltViewModel
-import androidx.lifecycle.compose.collectAsStateWithLifecycle
 import de.jeanlucmakiola.calendula.domain.EventForm
 import de.jeanlucmakiola.calendula.domain.EventInstance
 import de.jeanlucmakiola.calendula.ui.agenda.AgendaScreen
-import de.jeanlucmakiola.calendula.ui.calendars.BackupScreen
 import de.jeanlucmakiola.calendula.ui.calendars.CalendarsScreen
-import de.jeanlucmakiola.floret.identity.fadeThrough
 import de.jeanlucmakiola.calendula.ui.common.CalendarView
-import de.jeanlucmakiola.calendula.ui.common.drillToDay
 import de.jeanlucmakiola.calendula.ui.common.rememberCalendarSlideSpec
-import de.jeanlucmakiola.calendula.ui.common.selectView
-import de.jeanlucmakiola.calendula.ui.common.viewBaseStack
 import de.jeanlucmakiola.calendula.ui.day.DayScreen
 import de.jeanlucmakiola.calendula.ui.detail.EventDetailScreen
 import de.jeanlucmakiola.calendula.ui.edit.EventEditScreen
-import de.jeanlucmakiola.calendula.ui.edit.ImportSource
 import de.jeanlucmakiola.calendula.ui.imports.ImportScreen
 import de.jeanlucmakiola.calendula.ui.month.MonthScreen
-import de.jeanlucmakiola.calendula.ui.search.SearchScreen
 import de.jeanlucmakiola.calendula.ui.settings.SettingsScreen
 import de.jeanlucmakiola.calendula.ui.week.WeekScreen
 import kotlinx.datetime.LocalDate
@@ -46,24 +34,14 @@ import kotlinx.datetime.toLocalDateTime
 import kotlin.time.Clock
 
 /**
- * Holds the top-level view back stack (spec M1) and swaps between the calendar
+ * Holds the active top-level view (spec M1) and swaps between the calendar
  * screens. Each screen owns its own ViewModel and date anchor; the view-switcher
  * pill in their top bars writes back here via [onSelectView].
  *
- * The stack's bottom is the user's [CalendarHostViewModel.defaultView] home view.
- * A lateral switch (pill / drawer) builds a visit history so back retraces it
- * (see [selectView]); a widget launch resets the stack to its own view; a date
- * tap drills the day view on top. Pressing back pops one level, and the
- * base-level [BackHandler] hands off to the system to exit once only the home
- * view remains. So back from a widget-opened screen returns to that widget's
- * view, then home; and back through pill switches walks the views in reverse.
- *
  * [requestedDetailKey] is an externally requested occurrence (a tapped
  * reminder notification routed through MainActivity): it opens the detail
  * overlay exactly like an event tap and is cleared via [onDetailKeyConsumed]
- * so a later recomposition can't re-open it. (A widget event tap instead arrives
- * as [WidgetNavRequest.OpenEvent], which also roots the back stack in the
- * widget's view.)
+ * so a later recomposition can't re-open it.
  */
 @Composable
 fun CalendarHost(
@@ -74,36 +52,15 @@ fun CalendarHost(
     onWidgetNavConsumed: () -> Unit = {},
     requestedImportUri: android.net.Uri? = null,
     onImportConsumed: () -> Unit = {},
-    requestedInsertForm: EventForm? = null,
-    requestedInsertSource: ImportSource = ImportSource.Insert,
-    onInsertConsumed: () -> Unit = {},
-    requestedEditKey: LongArray? = null,
-    onEditKeyConsumed: () -> Unit = {},
-    viewModel: CalendarHostViewModel = hiltViewModel(),
 ) {
-    // Wait for the persisted default view before seeding the stack, so the app
-    // opens straight on the user's choice instead of flashing a placeholder and
-    // correcting it. Brief blank first frame, matching the onboarding gate above.
-    val defaultView = viewModel.defaultView.collectAsStateWithLifecycle().value ?: return
-
-    // View customisation (#24): the quick-switch cycle and drawer order. Both have
-    // sensible non-empty initial values, so they're ready before the first frame.
-    val quickSwitchViews = viewModel.quickSwitchViews.collectAsStateWithLifecycle().value
-    val drawerViewOrder = viewModel.drawerViewOrder.collectAsStateWithLifecycle().value
-    // Whether the jump-to-today control sits in each view's top bar or the FAB (#60).
-    val todayInToolbar = viewModel.todayButtonInToolbar.collectAsStateWithLifecycle().value
-
-    var viewStack by rememberSaveable(stateSaver = viewStackSaver) {
-        mutableStateOf(listOf(defaultView))
-    }
-    val view = viewStack.last()
-    val onSelectView: (CalendarView) -> Unit = { viewStack = viewStack.selectView(it) }
+    var view by rememberSaveable { mutableStateOf(CalendarView.Week) }
+    val onSelectView: (CalendarView) -> Unit = { view = it }
 
     // Tapping a day in the month grid opens the day view anchored to that date.
     var pendingDayIso by rememberSaveable { mutableStateOf<String?>(null) }
     val onOpenDay: (LocalDate) -> Unit = { date ->
         pendingDayIso = date.toString()
-        viewStack = viewStack.drillToDay()
+        view = CalendarView.Day
     }
 
     // The event-detail screen (S4) is a full-screen destination hoisted here so
@@ -140,20 +97,10 @@ fun CalendarHost(
     var showSettings by rememberSaveable { mutableStateOf(false) }
     val onOpenSettings = { showSettings = true }
 
-    // Full-text search — its own overlay, opened from each calendar screen's
-    // top bar. Sits below the detail/edit overlays so tapping a result reveals
-    // the detail on top and backing out returns to the results.
-    var showSearch by rememberSaveable { mutableStateOf(false) }
-    val onOpenSearch = { showSearch = true }
-
     // Calendar manager (reached from Settings) — its own overlay so it slides
     // over Settings and survives view switches.
     var showCalendars by rememberSaveable { mutableStateOf(false) }
 
-    // Backup & restore (#69) — hoisted like the manager, being driven by the
-    // calendar list rather than by preferences. Reached from both.
-    var showBackup by rememberSaveable { mutableStateOf(false) }
-
     // Event form (v1.2 create) — same held-key pattern as the detail screen:
     // [heldCreateIso] keeps the prefill date alive through the slide-out.
     // [createStartMinutes] is the tapped slot's start (minutes from midnight)
@@ -183,105 +130,23 @@ fun CalendarHost(
     // picker (many). A plain conditional overlay (no slide) — it's transient.
     var importUri by remember { mutableStateOf<android.net.Uri?>(null) }
     var importForm by remember { mutableStateOf<EventForm?>(null) }
-    // Which channel filled [importForm]: an .ics file (prompt to apply the default
-    // reminder) or an ACTION_INSERT intent (apply it automatically) — #49.
-    var importFormSource by remember { mutableStateOf(ImportSource.File) }
-    // A restore (in-app "Restore from .ics" button) always runs the full import
-    // flow — picker + summary — even for a single-event file, because the intent
-    // is "restore a backup", not "add this one event". An externally opened .ics
-    // keeps routing a single event straight into the prefilled create form.
-    var importForceMany by remember { mutableStateOf(false) }
     LaunchedEffect(requestedImportUri) {
         if (requestedImportUri != null) {
             importUri = requestedImportUri
-            importForceMany = false
             onImportConsumed()
         }
     }
-    // An external ACTION_INSERT launch (another app/widget creating an event,
-    // issue #30) arrives already prefilled — open it in the same create form the
-    // single-event .ics path uses. [importForm] is the topmost overlay, so it
-    // reveals on top of whatever was open without extra dismissal.
-    LaunchedEffect(requestedInsertForm) {
-        if (requestedInsertForm != null) {
-            importFormSource = requestedInsertSource
-            importForm = requestedInsertForm
-            onInsertConsumed()
-        }
-    }
 
-    // Close every overlay that can sit over the calendar, so an externally
-    // requested destination (a widget/shortcut/QS-tile launch) is revealed on
-    // top instead of underneath whatever the user had open.
-    fun dismissCoveringOverlays() {
-        showSettings = false
-        showCalendars = false
-        showBackup = false
-        detailKey = null
-        editKey = null
-        importUri = null
-        importForm = null
-    }
-
-    // An external "edit this event" (ACTION_EDIT, e.g. an assistant/task app or
-    // widget) opens the occurrence straight in the edit form. Drop any covering
-    // overlay first — the edit overlay sits below Settings/import in the Box, so
-    // without this it would open hidden underneath them. Same held-key pattern as
-    // a detail-screen "Edit" tap; a saved edit just returns to the calendar.
-    LaunchedEffect(requestedEditKey) {
-        if (requestedEditKey != null) {
-            dismissCoveringOverlays()
-            heldEditKey = requestedEditKey
-            editKey = requestedEditKey
-            onEditKeyConsumed()
-        }
-    }
-
-    // A home-screen widget launch asks to open a date (→ day view), open an
-    // event's detail, or start a create. Handled once and cleared, mirroring
-    // [requestedDetailKey]. Date/event opens root the stack in the widget's own
-    // view so backing out returns there (then home), not to the default.
+    // A home-screen widget launch asks to open a date (→ day view) or start a
+    // create. Handled once and cleared, mirroring [requestedDetailKey].
     LaunchedEffect(widgetNavRequest) {
         when (val req = widgetNavRequest) {
             is WidgetNavRequest.OpenDate -> {
-                // Drill the day view in over the widget's view: drop any overlay
-                // that would cover it, so the open doesn't land under Settings/form.
-                dismissCoveringOverlays()
-                createDateIso = null
                 pendingDayIso = req.dateIso
-                // No widget source (an external date tap) roots over the default
-                // home view, so backing out of the day returns home then exits.
-                viewStack = viewBaseStack(defaultView, req.source ?: defaultView).drillToDay()
-                onWidgetNavConsumed()
-            }
-            is WidgetNavRequest.OpenEvent -> {
-                // Root the stack in the widget's view, then open the occurrence
-                // detail over it (same key shape as a tapped event / reminder).
-                dismissCoveringOverlays()
-                createDateIso = null
-                viewStack = viewBaseStack(defaultView, req.source)
-                val key = longArrayOf(req.eventId, req.beginMillis, req.endMillis)
-                heldKey = key
-                detailKey = key
-                onWidgetNavConsumed()
-            }
-            is WidgetNavRequest.OpenView -> {
-                // A widget header tap: land on a top-level view with no date
-                // drill-in. Reveal it by dropping any covering overlay, then root
-                // the stack on the target (null → the default home) over the
-                // default home — so backing out returns to the default, then exits.
-                dismissCoveringOverlays()
-                createDateIso = null
-                pendingDayIso = null
-                viewStack = viewBaseStack(defaultView, req.view ?: defaultView)
+                view = CalendarView.Day
                 onWidgetNavConsumed()
             }
             is WidgetNavRequest.Create -> {
-                // External "new event" entries (QS tile / launcher shortcut /
-                // widget) must land on top of whatever is open — the form overlay
-                // sits below Settings/calendars in the Box, so without this it
-                // would open hidden underneath them.
-                dismissCoveringOverlays()
                 val iso = req.dateIso ?: Clock.System.now()
                     .toLocalDateTime(TimeZone.currentSystemDefault()).date.toString()
                 heldCreateIso = iso
@@ -296,88 +161,36 @@ fun CalendarHost(
 
     val slideSpec = rememberCalendarSlideSpec()
 
-    // Base-level back: pop the view stack while no overlay covers it (each overlay
-    // owns its own BackHandler and takes precedence). Disabled at the home view,
-    // so back there falls through to the system and exits the app.
-    val anyOverlayVisible = showSearch || detailKey != null || createDateIso != null ||
-        editKey != null || showSettings || showCalendars || showBackup ||
-        importUri != null || importForm != null
-    BackHandler(enabled = !anyOverlayVisible && viewStack.size > 1) {
-        viewStack = viewStack.dropLast(1)
-    }
-
     Box(modifier = modifier.fillMaxSize()) {
-        // Switching between the peer views (month/week/day/agenda) is lateral
-        // navigation, so it fades through rather than sliding — paging *within* a
-        // view keeps the directional slide. AnimatedContent keyed on the view type.
-        val viewSwitch = fadeThrough()
-        AnimatedContent(
-            targetState = view,
-            transitionSpec = { viewSwitch },
-            label = "view-switch",
-        ) { currentView ->
-            when (currentView) {
-                CalendarView.Week -> WeekScreen(
-                    selectedView = currentView,
-                    onSelectView = onSelectView,
-                    onOpenDay = onOpenDay,
-                    onEventClick = onEventClick,
-                    onOpenSettings = onOpenSettings,
-                    onOpenSearch = onOpenSearch,
-                    onCreateEvent = onCreateEvent,
-                    quickSwitchViews = quickSwitchViews,
-                    drawerViewOrder = drawerViewOrder,
-                    todayInToolbar = todayInToolbar,
-                )
-                CalendarView.Day -> DayScreen(
-                    selectedView = currentView,
-                    onSelectView = onSelectView,
-                    onEventClick = onEventClick,
-                    onOpenSettings = onOpenSettings,
-                    onOpenSearch = onOpenSearch,
-                    onCreateEvent = onCreateEvent,
-                    initialDateIso = pendingDayIso,
-                    quickSwitchViews = quickSwitchViews,
-                    drawerViewOrder = drawerViewOrder,
-                    todayInToolbar = todayInToolbar,
-                )
-                CalendarView.Month -> MonthScreen(
-                    selectedView = currentView,
-                    onSelectView = onSelectView,
-                    onOpenDay = onOpenDay,
-                    onEventClick = onEventClick,
-                    onOpenSettings = onOpenSettings,
-                    onOpenSearch = onOpenSearch,
-                    onCreateEvent = onCreateEvent,
-                    quickSwitchViews = quickSwitchViews,
-                    drawerViewOrder = drawerViewOrder,
-                    todayInToolbar = todayInToolbar,
-                )
-                CalendarView.Agenda -> AgendaScreen(
-                    selectedView = currentView,
-                    onSelectView = onSelectView,
-                    onOpenDay = onOpenDay,
-                    onEventClick = onEventClick,
-                    onOpenSettings = onOpenSettings,
-                    onOpenSearch = onOpenSearch,
-                    onCreateEvent = onCreateEvent,
-                    quickSwitchViews = quickSwitchViews,
-                    drawerViewOrder = drawerViewOrder,
-                    todayInToolbar = todayInToolbar,
-                )
-            }
-        }
-
-        // Search overlay — below detail/edit in the Box so a tapped result's
-        // detail screen draws on top, and closing it returns to the results.
-        AnimatedVisibility(
-            visible = showSearch,
-            enter = slideInHorizontally(slideSpec) { it } + fadeIn(),
-            exit = slideOutHorizontally(slideSpec) { it } + fadeOut(),
-        ) {
-            SearchScreen(
-                onBack = { showSearch = false },
+        when (view) {
+            CalendarView.Week -> WeekScreen(
+                selectedView = view,
+                onSelectView = onSelectView,
                 onEventClick = onEventClick,
+                onOpenSettings = onOpenSettings,
+                onCreateEvent = onCreateEvent,
+            )
+            CalendarView.Day -> DayScreen(
+                selectedView = view,
+                onSelectView = onSelectView,
+                onEventClick = onEventClick,
+                onOpenSettings = onOpenSettings,
+                onCreateEvent = onCreateEvent,
+                initialDateIso = pendingDayIso,
+            )
+            CalendarView.Month -> MonthScreen(
+                selectedView = view,
+                onSelectView = onSelectView,
+                onOpenDay = onOpenDay,
+                onOpenSettings = onOpenSettings,
+                onCreateEvent = onCreateEvent,
+            )
+            CalendarView.Agenda -> AgendaScreen(
+                selectedView = view,
+                onSelectView = onSelectView,
+                onEventClick = onEventClick,
+                onOpenSettings = onOpenSettings,
+                onCreateEvent = onCreateEvent,
             )
         }
 
@@ -398,14 +211,6 @@ fun CalendarHost(
                         heldEditKey = key
                         editKey = key
                     },
-                    onDuplicate = { form ->
-                        // Reuse the prefilled-create overlay: a duplicate is a
-                        // fresh event, so it applies the default reminder like an
-                        // in-app new event (#52).
-                        importFormSource = ImportSource.Insert
-                        importForm = form
-                        detailKey = null
-                    },
                 )
             }
         }
@@ -422,7 +227,6 @@ fun CalendarHost(
                     initialStartMinutes = createStartMinutes ?: heldCreateMinutes,
                     onClose = { createDateIso = null },
                     onSaved = { createDateIso = null },
-                    onManageCalendars = { showCalendars = true },
                 )
             }
         }
@@ -442,7 +246,6 @@ fun CalendarHost(
                         editKey = null
                         detailKey = null
                     },
-                    onManageCalendars = { showCalendars = true },
                 )
             }
         }
@@ -456,21 +259,26 @@ fun CalendarHost(
             SettingsScreen(
                 onBack = { showSettings = false },
                 onManageCalendars = { showCalendars = true },
-                onOpenBackup = { showBackup = true },
             )
         }
 
+        // Calendar manager — slides over Settings.
+        AnimatedVisibility(
+            visible = showCalendars,
+            enter = slideInHorizontally(slideSpec) { it } + fadeIn(),
+            exit = slideOutHorizontally(slideSpec) { it } + fadeOut(),
+        ) {
+            CalendarsScreen(onBack = { showCalendars = false })
+        }
+
         // Import flow for an opened/received .ics file. A single event routes
         // into the create form (prefilled, for review); many open the picker.
         importUri?.let { uri ->
             ImportScreen(
                 uri = uri,
-                forceMany = importForceMany,
                 onClose = { importUri = null },
-                onManageCalendars = { showCalendars = true },
                 onOpenSingle = { form ->
                     importUri = null
-                    importFormSource = ImportSource.File
                     importForm = form
                 },
             )
@@ -479,50 +287,9 @@ fun CalendarHost(
             EventEditScreen(
                 initialDateIso = null,
                 initialForm = form,
-                initialFormSource = importFormSource,
                 onClose = { importForm = null },
                 onSaved = { importForm = null },
-                onManageCalendars = { showCalendars = true },
-            )
-        }
-
-        // Declared last so it covers every overlay that can open it: Settings,
-        // both event forms, and the .ics import picker (#76).
-        AnimatedVisibility(
-            visible = showCalendars,
-            enter = slideInHorizontally(slideSpec) { it } + fadeIn(),
-            exit = slideOutHorizontally(slideSpec) { it } + fadeOut(),
-        ) {
-            CalendarsScreen(
-                onBack = { showCalendars = false },
-                onOpenBackup = { showBackup = true },
-            )
-        }
-
-        // Backup & restore — over the manager, since the manager links into it.
-        AnimatedVisibility(
-            visible = showBackup,
-            enter = slideInHorizontally(slideSpec) { it } + fadeIn(),
-            exit = slideOutHorizontally(slideSpec) { it } + fadeOut(),
-        ) {
-            BackupScreen(
-                onBack = { showBackup = false },
-                // Restore runs the normal .ics import, and both this screen and
-                // the manager that can have opened it are declared above the
-                // import overlays — so both have to step aside.
-                onImport = {
-                    importUri = it
-                    importForceMany = true
-                    showBackup = false
-                    showCalendars = false
-                },
             )
         }
     }
 }
-
-/** Persists the view back stack across config change / process death by ordinal. */
-private val viewStackSaver = listSaver<List<CalendarView>, Int>(
-    save = { stack -> stack.map(CalendarView::ordinal) },
-    restore = { ordinals -> ordinals.map { CalendarView.entries[it] } },
-)

app/src/main/java/de/jeanlucmakiola/calendula/ui/CalendarHostViewModel.kt

@@ -1,56 +0,0 @@
-package de.jeanlucmakiola.calendula.ui
-
-import androidx.lifecycle.ViewModel
-import androidx.lifecycle.viewModelScope
-import dagger.hilt.android.lifecycle.HiltViewModel
-import de.jeanlucmakiola.calendula.data.prefs.SettingsPrefs
-import de.jeanlucmakiola.calendula.ui.common.CalendarView
-import de.jeanlucmakiola.calendula.ui.common.IMPLEMENTED_VIEWS
-import kotlinx.coroutines.flow.SharingStarted
-import kotlinx.coroutines.flow.StateFlow
-import kotlinx.coroutines.flow.map
-import kotlinx.coroutines.flow.stateIn
-import javax.inject.Inject
-
-/**
- * Supplies [CalendarHost] with the user's default startup view (M1). Held as a
- * nullable [StateFlow] so the host can wait for DataStore's first emission before
- * seeding its view back stack — rendering nothing for that first frame rather
- * than flashing the old hard-coded Week view and then correcting it.
- */
-@HiltViewModel
-class CalendarHostViewModel @Inject constructor(
-    prefs: SettingsPrefs,
-) : ViewModel() {
-
-    val defaultView: StateFlow<CalendarView?> = prefs.defaultView.stateIn(
-        scope = viewModelScope,
-        started = SharingStarted.WhileSubscribed(5_000L),
-        initialValue = null,
-    )
-
-    /** Views the top-bar quick-switch pill cycles through, in the user's order (#24). */
-    val quickSwitchViews: StateFlow<List<CalendarView>> = prefs.quickSwitchConfig
-        .map { it.cycle }
-        .stateIn(
-            scope = viewModelScope,
-            started = SharingStarted.WhileSubscribed(5_000L),
-            initialValue = IMPLEMENTED_VIEWS,
-        )
-
-    /** Order of the views in the navigation drawer (#24); every view always shown. */
-    val drawerViewOrder: StateFlow<List<CalendarView>> = prefs.drawerViewOrder
-        .stateIn(
-            scope = viewModelScope,
-            started = SharingStarted.WhileSubscribed(5_000L),
-            initialValue = IMPLEMENTED_VIEWS,
-        )
-
-    /** Whether each view's jump-to-today control lives in the top bar, not the FAB (#60). */
-    val todayButtonInToolbar: StateFlow<Boolean> = prefs.todayButtonInToolbar
-        .stateIn(
-            scope = viewModelScope,
-            started = SharingStarted.WhileSubscribed(5_000L),
-            initialValue = false,
-        )
-}

app/src/main/java/de/jeanlucmakiola/calendula/ui/RootScreen.kt

@@ -2,12 +2,8 @@ package de.jeanlucmakiola.calendula.ui
 
 import android.Manifest
 import android.content.pm.PackageManager
-import androidx.compose.animation.Crossfade
-import androidx.compose.material3.ExperimentalMaterial3ExpressiveApi
-import androidx.compose.material3.MaterialTheme
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.DisposableEffect
-import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
 import androidx.compose.runtime.setValue
@@ -20,15 +16,10 @@ import androidx.lifecycle.compose.collectAsStateWithLifecycle
 import androidx.core.content.ContextCompat
 import androidx.lifecycle.Lifecycle
 import androidx.lifecycle.LifecycleEventObserver
-import de.jeanlucmakiola.calendula.data.contacts.SpecialDatesScheduler
-import de.jeanlucmakiola.calendula.data.contacts.hasContactsPermission
-import de.jeanlucmakiola.calendula.ui.calendars.CalendarVisibilityNoticeDialog
-import de.jeanlucmakiola.calendula.ui.calendars.CalendarVisibilityNoticeViewModel
 import de.jeanlucmakiola.calendula.ui.permission.PermissionScreen
 import de.jeanlucmakiola.calendula.ui.permission.ReminderOnboardingScreen
 import de.jeanlucmakiola.calendula.ui.permission.ReminderOnboardingViewModel
 
-@OptIn(ExperimentalMaterial3ExpressiveApi::class)
 @Composable
 fun RootScreen(
     modifier: Modifier = Modifier,
@@ -38,12 +29,6 @@ fun RootScreen(
     onWidgetNavConsumed: () -> Unit = {},
     requestedImportUri: android.net.Uri? = null,
     onImportConsumed: () -> Unit = {},
-    requestedInsertForm: de.jeanlucmakiola.calendula.domain.EventForm? = null,
-    requestedInsertSource: de.jeanlucmakiola.calendula.ui.edit.ImportSource =
-        de.jeanlucmakiola.calendula.ui.edit.ImportSource.Insert,
-    onInsertConsumed: () -> Unit = {},
-    requestedEditKey: LongArray? = null,
-    onEditKeyConsumed: () -> Unit = {},
 ) {
     val context = LocalContext.current
     var hasPermission by remember {
@@ -53,10 +38,6 @@ fun RootScreen(
         )
     }
 
-    // A launch scan already covers the app coming up with the permission, so
-    // only a grant made during this session owes a re-scan.
-    val grantedAtLaunch = remember { hasPermission }
-
     val lifecycle = LocalLifecycleOwner.current.lifecycle
     DisposableEffect(lifecycle) {
         val obs = LifecycleEventObserver { _, event ->
@@ -64,70 +45,38 @@ fun RootScreen(
                 hasPermission = ContextCompat.checkSelfPermission(
                     context, Manifest.permission.READ_CALENDAR
                 ) == PackageManager.PERMISSION_GRANTED
-                // Refresh the contact special-dates mirror on foreground (the
-                // worker is debounced and no-ops when the feature is off). Gated
-                // on the permission so users without the opt-in never enqueue it.
-                if (context.hasContactsPermission()) {
-                    SpecialDatesScheduler.runNow(context, foreground = true)
-                }
             }
         }
         lifecycle.addObserver(obs)
         onDispose { lifecycle.removeObserver(obs) }
     }
 
-    // Cross-fade the one-time onboarding gates so granting permission / finishing
-    // onboarding eases into the next screen instead of snapping. A fade carries no
-    // spatial motion, so it stays appropriate under "remove animations" too.
-    val gateSpec = MaterialTheme.motionScheme.fastEffectsSpec<Float>()
-    Crossfade(targetState = hasPermission, animationSpec = gateSpec, label = "permissionGate") { granted ->
-        if (granted) {
-            // Second onboarding gate (v1.4, one-time): reminder notifications.
-            // Null until DataStore's first emission — render nothing for that
-            // frame instead of flashing the wrong screen.
-            val reminderOnboarding: ReminderOnboardingViewModel = hiltViewModel()
-            val onboardingDone by reminderOnboarding.onboardingDone.collectAsStateWithLifecycle()
-            // One-time explainer for the switch to the device's own calendar
-            // visibility (#75), armed by the reconciler.
-            val visibilityNotice: CalendarVisibilityNoticeViewModel = hiltViewModel()
-            val noticePending by visibilityNotice.pending.collectAsStateWithLifecycle()
-            // Runs on entry however the permission was granted, including via
-            // Android's app-settings screen (caught by the ON_RESUME above).
-            LaunchedEffect(Unit) {
-                visibilityNotice.reconcile()
-                if (!grantedAtLaunch) reminderOnboarding.rearmAfterGrant()
-            }
-            if (onboardingDone == true && noticePending) {
-                CalendarVisibilityNoticeDialog(onDismiss = visibilityNotice::dismiss)
-            }
-            Crossfade(targetState = onboardingDone, animationSpec = gateSpec, label = "onboardingGate") { done ->
-                when (done) {
-                    true -> CalendarHost(
-                        modifier = modifier,
-                        requestedDetailKey = requestedDetailKey,
-                        onDetailKeyConsumed = onDetailKeyConsumed,
-                        widgetNavRequest = widgetNavRequest,
-                        onWidgetNavConsumed = onWidgetNavConsumed,
-                        requestedImportUri = requestedImportUri,
-                        onImportConsumed = onImportConsumed,
-                        requestedInsertForm = requestedInsertForm,
-                        requestedInsertSource = requestedInsertSource,
-                        onInsertConsumed = onInsertConsumed,
-                        requestedEditKey = requestedEditKey,
-                        onEditKeyConsumed = onEditKeyConsumed,
-                    )
-                    false -> ReminderOnboardingScreen(
-                        onFinished = reminderOnboarding::finish,
-                        modifier = modifier,
-                    )
-                    null -> {}
-                }
-            }
-        } else {
-            PermissionScreen(
-                onGranted = { hasPermission = true },
+    if (hasPermission) {
+        // Second onboarding gate (v1.4, one-time): reminder notifications.
+        // Null until DataStore's first emission — render nothing for that
+        // frame instead of flashing the wrong screen.
+        val reminderOnboarding: ReminderOnboardingViewModel = hiltViewModel()
+        val onboardingDone by reminderOnboarding.onboardingDone.collectAsStateWithLifecycle()
+        when (onboardingDone) {
+            true -> CalendarHost(
+                modifier = modifier,
+                requestedDetailKey = requestedDetailKey,
+                onDetailKeyConsumed = onDetailKeyConsumed,
+                widgetNavRequest = widgetNavRequest,
+                onWidgetNavConsumed = onWidgetNavConsumed,
+                requestedImportUri = requestedImportUri,
+                onImportConsumed = onImportConsumed,
+            )
+            false -> ReminderOnboardingScreen(
+                onFinished = reminderOnboarding::finish,
                 modifier = modifier,
             )
+            null -> {}
         }
+    } else {
+        PermissionScreen(
+            onGranted = { hasPermission = true },
+            modifier = modifier,
+        )
     }
 }

app/src/main/java/de/jeanlucmakiola/calendula/ui/WidgetNavRequest.kt

@@ -1,43 +1,15 @@
 package de.jeanlucmakiola.calendula.ui
 
-import de.jeanlucmakiola.calendula.ui.common.CalendarView
-
 /**
  * A navigation a home-screen widget asked the app to perform when launched.
  * Parsed from the launch intent in MainActivity and consumed once by
- * [CalendarHost]. Every request carries the [source] view of the widget it came
- * from (the agenda widget → [CalendarView.Agenda], the month widget →
- * [CalendarView.Month]) so the in-app back stack roots itself in that view:
- * backing out of the opened date/event returns to the widget's own view, not the
- * default home. (Reminder notifications are not widgets — they keep the separate
- * detail-key channel and leave the base view untouched.)
+ * [CalendarHost] (event taps reuse the existing reminder detail-key channel, so
+ * they are not modelled here).
  */
 sealed interface WidgetNavRequest {
-    /**
-     * Open the day view anchored on [dateIso] (an ISO `yyyy-MM-dd` date), over
-     * [source]. A null [source] means the request came from outside the app (a
-     * launcher/clock date tap, issue #9) rather than a widget, so it roots over
-     * the default home view instead of a widget's view.
-     */
-    data class OpenDate(val dateIso: String, val source: CalendarView?) : WidgetNavRequest
-
-    /** Open one occurrence's detail (an agenda-widget event tap), over [source]. */
-    data class OpenEvent(
-        val eventId: Long,
-        val beginMillis: Long,
-        val endMillis: Long,
-        val source: CalendarView,
-    ) : WidgetNavRequest
+    /** Open the day view anchored on [dateIso] (an ISO `yyyy-MM-dd` date). */
+    data class OpenDate(val dateIso: String) : WidgetNavRequest
 
     /** Open the create-event form prefilled for [dateIso] (today when null). */
     data class Create(val dateIso: String?) : WidgetNavRequest
-
-    /**
-     * Open the app rooted on a top-level [view] with no date drill-in — a widget
-     * header tap. A null [view] means "the user's default home view" (the agenda
-     * widget's "Upcoming" title, issue #20); a concrete view roots there over the
-     * default home (the month widget's month/year title → [CalendarView.Month],
-     * issue #18), so backing out returns to the default view, then exits.
-     */
-    data class OpenView(val view: CalendarView?) : WidgetNavRequest
 }

app/src/main/java/de/jeanlucmakiola/calendula/ui/agenda/AgendaRange.kt

@@ -1,123 +0,0 @@
-package de.jeanlucmakiola.calendula.ui.agenda
-
-import de.jeanlucmakiola.floret.locale.localizedDateFormatter
-import kotlinx.datetime.DayOfWeek
-import kotlinx.datetime.LocalDate
-import java.time.YearMonth
-import java.util.Locale
-
-/**
- * How far ahead the agenda (screen or widget) shows events, starting at today.
- *
- * Two flavours:
- * - **Rolling** windows of a fixed length: [Day] (today), [Week] (7 days),
- *   [Month] (30 days), [Custom] (1–365 days). These never degenerate.
- * - **Calendar-aligned** windows that end at a period boundary: [ThisWeek] runs
- *   through the end of the current week (respecting the week-start preference —
- *   a Monday start means "everything before next Monday"); [ThisMonth] runs
- *   through the last day of the current month. These shrink as the period ends.
- */
-sealed interface AgendaRange {
-    data object Day : AgendaRange
-    data object Week : AgendaRange
-    data object Month : AgendaRange
-    data object ThisWeek : AgendaRange
-    data object ThisMonth : AgendaRange
-    data class Custom(val days: Int) : AgendaRange
-
-    companion object {
-        /** Allowed bounds for a [Custom] day count. */
-        const val MIN_CUSTOM_DAYS = 1
-        const val MAX_CUSTOM_DAYS = 365
-    }
-}
-
-private const val DAYS_PER_WEEK = 7
-
-/**
- * Inclusive number of days the window spans, starting at (and including)
- * [anchor]. The calendar-aligned ranges depend on the anchor day and, for
- * [AgendaRange.ThisWeek], the [weekStart] preference.
- */
-fun AgendaRange.dayCount(anchor: LocalDate, weekStart: DayOfWeek): Int = when (this) {
-    AgendaRange.Day -> 1
-    AgendaRange.Week -> DAYS_PER_WEEK
-    AgendaRange.Month -> 30
-    AgendaRange.ThisWeek -> {
-        // Days elapsed since the week's first day (0 when today *is* the start),
-        // so the window is the rest of the week through the day before it repeats.
-        val sinceWeekStart = ((anchor.dayOfWeek.ordinal - weekStart.ordinal) + DAYS_PER_WEEK) % DAYS_PER_WEEK
-        DAYS_PER_WEEK - sinceWeekStart
-    }
-    AgendaRange.ThisMonth -> {
-        val daysInMonth = YearMonth.of(anchor.year, anchor.month.ordinal + 1).lengthOfMonth()
-        daysInMonth - anchor.day + 1
-    }
-    is AgendaRange.Custom -> days.coerceIn(AgendaRange.MIN_CUSTOM_DAYS, AgendaRange.MAX_CUSTOM_DAYS)
-}
-
-/** Stored representation: a fixed token, or `CUSTOM:<days>`. */
-fun AgendaRange.storageValue(): String = when (this) {
-    AgendaRange.Day -> "DAY"
-    AgendaRange.Week -> "WEEK"
-    AgendaRange.Month -> "MONTH"
-    AgendaRange.ThisWeek -> "THIS_WEEK"
-    AgendaRange.ThisMonth -> "THIS_MONTH"
-    is AgendaRange.Custom -> "$CUSTOM_PREFIX$days"
-}
-
-/** Parse a stored value; unknown/garbage falls back to [default]. */
-fun parseAgendaRange(stored: String?, default: AgendaRange): AgendaRange = when {
-    stored == "DAY" -> AgendaRange.Day
-    stored == "WEEK" -> AgendaRange.Week
-    stored == "MONTH" -> AgendaRange.Month
-    stored == "THIS_WEEK" -> AgendaRange.ThisWeek
-    stored == "THIS_MONTH" -> AgendaRange.ThisMonth
-    stored != null && stored.startsWith(CUSTOM_PREFIX) -> {
-        val days = stored.removePrefix(CUSTOM_PREFIX).toIntOrNull()
-        if (days != null) {
-            AgendaRange.Custom(days.coerceIn(AgendaRange.MIN_CUSTOM_DAYS, AgendaRange.MAX_CUSTOM_DAYS))
-        } else {
-            default
-        }
-    }
-    else -> default
-}
-
-/**
- * The concrete span the range covers, starting at [start] through [end]
- * (inclusive), for a human-readable header. Both ends use the same day-month
- * order so a span never mixes "15 Jul" with "Aug 13, 2026":
- * - [AgendaRange.Day] → a single date ("27 Jun 2026")
- * - [AgendaRange.ThisMonth] → month and year ("June 2026")
- * - everything else → "start – end" ("27 Jun – 3 Jul 2026"), with the start's
- *   year shown too only when it differs from the end's.
- *
- * [monthAsSpan] puts [AgendaRange.ThisMonth] on the "start – end" form as well.
- * The agenda's own header browses the whole month, so the month name is right
- * there; the range picker previews the window an option opens *today*, which for
- * "This month" is only the rest of it.
- */
-fun agendaRangeWindowSummary(
-    range: AgendaRange,
-    start: LocalDate,
-    end: LocalDate,
-    locale: Locale,
-    monthAsSpan: Boolean = false,
-): String {
-    val javaStart = java.time.LocalDate.of(start.year, start.month.ordinal + 1, start.day)
-    val javaEnd = java.time.LocalDate.of(end.year, end.month.ordinal + 1, end.day)
-    val dayMonth = localizedDateFormatter(locale, "dMMM")
-    val dayMonthYear = localizedDateFormatter(locale, "dMMMy")
-    return when {
-        range == AgendaRange.Day -> dayMonthYear.format(javaStart)
-        range == AgendaRange.ThisMonth && !monthAsSpan ->
-            localizedDateFormatter(locale, "LLLLy").format(javaStart)
-        else -> {
-            val startFmt = if (start.year == end.year) dayMonth else dayMonthYear
-            "${startFmt.format(javaStart)} – ${dayMonthYear.format(javaEnd)}"
-        }
-    }
-}
-
-private const val CUSTOM_PREFIX = "CUSTOM:"

app/src/main/java/de/jeanlucmakiola/calendula/ui/agenda/AgendaRows.kt

@@ -1,207 +0,0 @@
-package de.jeanlucmakiola.calendula.ui.agenda
-
-import androidx.compose.foundation.background
-import androidx.compose.foundation.clickable
-import androidx.compose.foundation.isSystemInDarkTheme
-import androidx.compose.foundation.layout.Box
-import androidx.compose.foundation.layout.Column
-import androidx.compose.foundation.layout.Spacer
-import androidx.compose.foundation.layout.fillMaxWidth
-import androidx.compose.foundation.layout.height
-import androidx.compose.foundation.layout.padding
-import androidx.compose.foundation.layout.size
-import androidx.compose.foundation.shape.RoundedCornerShape
-import androidx.compose.material.icons.Icons
-import androidx.compose.material.icons.filled.Coffee
-import androidx.compose.material3.Card
-import androidx.compose.material3.Icon
-import androidx.compose.material3.MaterialTheme
-import androidx.compose.material3.Surface
-import androidx.compose.material3.Text
-import androidx.compose.runtime.Composable
-import androidx.compose.ui.Alignment
-import androidx.compose.ui.Modifier
-import androidx.compose.ui.draw.alpha
-import androidx.compose.ui.draw.clip
-import androidx.compose.ui.res.stringResource
-import androidx.compose.ui.text.style.TextAlign
-import androidx.compose.ui.unit.dp
-import de.jeanlucmakiola.calendula.R
-import de.jeanlucmakiola.calendula.domain.EventInstance
-import de.jeanlucmakiola.calendula.ui.common.EventDimAlpha
-import de.jeanlucmakiola.calendula.ui.common.LocalSoftenColors
-import de.jeanlucmakiola.calendula.ui.common.LocalUse24HourFormat
-import de.jeanlucmakiola.calendula.ui.common.eventAccent
-import de.jeanlucmakiola.calendula.ui.common.eventFill
-import de.jeanlucmakiola.calendula.ui.common.formatTimeOfDay
-import de.jeanlucmakiola.floret.components.GroupedRow
-import de.jeanlucmakiola.floret.components.Position
-import de.jeanlucmakiola.floret.locale.currentLocale
-import de.jeanlucmakiola.floret.locale.localizedDateFormatter
-import kotlinx.datetime.DateTimeUnit
-import kotlinx.datetime.LocalDate
-import kotlinx.datetime.TimeZone
-import kotlinx.datetime.plus
-import kotlinx.datetime.toLocalDateTime
-import kotlin.time.Instant
-import java.util.Locale
-
-// The agenda's row vocabulary, split out of AgendaScreen so the month view's
-// split style can list a day with exactly the same visual language instead of
-// growing a parallel set of event rows.
-
-@Composable
-internal fun AgendaDayHeader(
-    date: LocalDate,
-    today: LocalDate,
-    onOpenDay: (LocalDate) -> Unit,
-) {
-    Surface(
-        color = MaterialTheme.colorScheme.surface,
-        modifier = Modifier
-            .fillMaxWidth()
-            .clickable { onOpenDay(date) },
-    ) {
-        Text(
-            text = agendaDayLabel(date, today),
-            style = MaterialTheme.typography.titleSmall,
-            color = if (date == today) {
-                MaterialTheme.colorScheme.primary
-            } else {
-                MaterialTheme.colorScheme.onSurfaceVariant
-            },
-            modifier = Modifier.padding(start = 28.dp, end = 28.dp, top = 16.dp, bottom = 8.dp),
-        )
-    }
-}
-
-/**
- * A card standing in for a day with no events — the same coffee-cup motif as the
- * agenda's full-screen empty state, boxed into a card so the day keeps a visible slot
- * rather than a bare header. Used for an anchored, event-less today (#35) and for
- * an empty selected day in the month view's split style.
- */
-@Composable
-internal fun AgendaEmptyDayRow(text: String, onClick: () -> Unit) {
-    Card(
-        // Match a single event row's resting corner radius (floret groupedShape).
-        shape = RoundedCornerShape(22.dp),
-        modifier = Modifier
-            .fillMaxWidth()
-            .padding(horizontal = 16.dp, vertical = 4.dp)
-            .clickable(onClick = onClick),
-    ) {
-        Column(
-            modifier = Modifier
-                .fillMaxWidth()
-                .padding(vertical = 18.dp, horizontal = 16.dp),
-            horizontalAlignment = Alignment.CenterHorizontally,
-        ) {
-            Icon(
-                imageVector = Icons.Filled.Coffee,
-                contentDescription = null,
-                tint = MaterialTheme.colorScheme.onSurfaceVariant,
-                modifier = Modifier.size(36.dp),
-            )
-            Spacer(Modifier.height(8.dp))
-            Text(
-                text = text,
-                style = MaterialTheme.typography.bodyLarge,
-                color = MaterialTheme.colorScheme.onSurfaceVariant,
-                textAlign = TextAlign.Center,
-            )
-        }
-    }
-}
-
-@Composable
-internal fun AgendaEventRow(
-    event: EventInstance,
-    day: LocalDate,
-    zone: TimeZone,
-    position: Position,
-    dimmed: Boolean,
-    modifier: Modifier = Modifier,
-    onClick: () -> Unit,
-) {
-    val dark = isSystemInDarkTheme()
-    val soften = LocalSoftenColors.current
-    val title = event.title.ifBlank { stringResource(R.string.event_untitled) }
-    GroupedRow(
-        modifier = if (dimmed) modifier.alpha(EventDimAlpha) else modifier,
-        title = title,
-        summary = agendaTimeSummary(event, day, zone),
-        position = position,
-        minHeight = 64.dp,
-        leading = {
-            Box(
-                modifier = Modifier
-                    .size(width = 6.dp, height = 36.dp)
-                    .clip(RoundedCornerShape(3.dp))
-                    .background(eventAccent(event.color, dark, soften)),
-            )
-        },
-        onClick = onClick,
-    )
-}
-
-/** "Today · Wed, 17. Jun 2026" — relative word for today/tomorrow, else the date. */
-@Composable
-internal fun agendaDayLabel(date: LocalDate, today: LocalDate): String {
-    val relative = when (date) {
-        today -> stringResource(R.string.agenda_header_today)
-        today.plus(1, DateTimeUnit.DAY) -> stringResource(R.string.agenda_header_tomorrow)
-        else -> null
-    }
-    val formatted = formatAgendaDate(date)
-    return if (relative != null) "$relative · $formatted" else formatted
-}
-
-/**
- * Time line under the title: "09:00 – 10:00 · Location", "All day", etc.
- *
- * A multi-day event shows only the part relevant to [day], spelled out so each
- * day reads on its own: its first day names the start ("Starts 14:00"), its last
- * day the end ("Ends 10:00"), and any whole day in between reads as "All day".
- * An all-day multi-day event is simply "All day" on every day it covers.
- */
-@Composable
-internal fun agendaTimeSummary(event: EventInstance, day: LocalDate, zone: TimeZone): String {
-    val is24Hour = LocalUse24HourFormat.current
-    val locale = currentLocale()
-
-    val time = when (val label = agendaTimeLabel(event, day, zone)) {
-        AgendaTimeLabel.AllDay -> stringResource(R.string.event_detail_all_day)
-        is AgendaTimeLabel.Starts -> stringResource(
-            R.string.agenda_span_starts,
-            formatTime(label.start, zone, is24Hour, locale),
-        )
-        is AgendaTimeLabel.Ends -> stringResource(
-            R.string.agenda_span_ends,
-            formatTime(label.end, zone, is24Hour, locale),
-        )
-        is AgendaTimeLabel.Range -> "${formatTime(label.start, zone, is24Hour, locale)} – " +
-            formatTime(label.end, zone, is24Hour, locale)
-    }
-
-    val location = event.location?.takeIf { it.isNotBlank() }
-    return if (location != null) "$time · $location" else time
-}
-
-private fun formatTime(
-    instant: Instant,
-    zone: TimeZone,
-    is24Hour: Boolean,
-    locale: Locale,
-): String {
-    val t = instant.toLocalDateTime(zone).time
-    return formatTimeOfDay(t.hour, t.minute, is24Hour, locale)
-}
-
-private fun formatAgendaDate(date: LocalDate): String {
-    val locale = Locale.getDefault()
-    val java = java.time.LocalDate.of(date.year, date.month.ordinal + 1, date.day)
-    // Weekday + date in the locale's own field order (e.g. "Wed, Jun 17, 2026"
-    // vs "Mi., 17. Juni 2026") rather than a hardcoded day-month-year layout.
-    return localizedDateFormatter(locale, "EEEdMMMy").format(java)
-}

app/src/main/java/de/jeanlucmakiola/calendula/ui/agenda/AgendaScreen.kt

@@ -1,11 +1,12 @@
 package de.jeanlucmakiola.calendula.ui.agenda
 
 import androidx.compose.foundation.ExperimentalFoundationApi
+import androidx.compose.foundation.background
+import androidx.compose.foundation.isSystemInDarkTheme
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.PaddingValues
-import androidx.compose.foundation.layout.Row
 import androidx.compose.foundation.layout.Spacer
 import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.fillMaxWidth
@@ -14,19 +15,18 @@ import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.size
 import androidx.compose.foundation.lazy.LazyColumn
 import androidx.compose.foundation.lazy.itemsIndexed
+import androidx.compose.foundation.shape.RoundedCornerShape
 import androidx.compose.material.icons.Icons
-import androidx.compose.material.icons.filled.Coffee
+import androidx.compose.material.icons.filled.EventAvailable
 import androidx.compose.material.icons.filled.Menu
-import androidx.compose.material.icons.filled.Search
-import androidx.compose.material3.ButtonDefaults
 import androidx.compose.material3.DrawerValue
-import androidx.compose.material3.FilledTonalButton
 import androidx.compose.material3.ExperimentalMaterial3Api
 import androidx.compose.material3.Icon
 import androidx.compose.material3.IconButton
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.ModalNavigationDrawer
 import androidx.compose.material3.Scaffold
+import androidx.compose.material3.Surface
 import androidx.compose.material3.Text
 import androidx.compose.material3.TopAppBar
 import androidx.compose.material3.TopAppBarDefaults
@@ -34,12 +34,10 @@ import androidx.compose.material3.TopAppBarScrollBehavior
 import androidx.compose.material3.rememberDrawerState
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.getValue
-import androidx.compose.runtime.mutableStateOf
-import androidx.compose.runtime.remember
 import androidx.compose.runtime.rememberCoroutineScope
-import androidx.compose.runtime.setValue
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.clip
 import androidx.compose.ui.input.nestedscroll.nestedScroll
 import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.text.style.TextAlign
@@ -47,64 +45,51 @@ import androidx.compose.ui.unit.dp
 import androidx.hilt.navigation.compose.hiltViewModel
 import androidx.lifecycle.compose.collectAsStateWithLifecycle
 import de.jeanlucmakiola.calendula.R
-import de.jeanlucmakiola.calendula.data.prefs.PastEventDisplay
 import de.jeanlucmakiola.calendula.domain.EventInstance
-import de.jeanlucmakiola.calendula.domain.hasEnded
-import de.jeanlucmakiola.calendula.ui.common.AgendaRangePicker
-import de.jeanlucmakiola.calendula.ui.common.agendaRangeLabel
-import de.jeanlucmakiola.floret.identity.animateItemMotion
 import de.jeanlucmakiola.calendula.ui.common.CalendarDrawer
 import de.jeanlucmakiola.calendula.ui.common.CalendarFabColumn
-import de.jeanlucmakiola.calendula.ui.common.TodayAction
 import de.jeanlucmakiola.calendula.ui.common.CalendarFailure
 import de.jeanlucmakiola.calendula.ui.common.CalendarView
-import de.jeanlucmakiola.calendula.ui.common.IMPLEMENTED_VIEWS
+import de.jeanlucmakiola.calendula.ui.common.GroupedRow
+import de.jeanlucmakiola.calendula.ui.common.Position
 import de.jeanlucmakiola.calendula.ui.common.ViewSwitcherPill
 import de.jeanlucmakiola.calendula.ui.common.next
-import de.jeanlucmakiola.floret.components.positionOf
-import de.jeanlucmakiola.calendula.ui.common.rememberCurrentMinute
-import de.jeanlucmakiola.floret.locale.currentLocale
+import de.jeanlucmakiola.calendula.ui.common.pastelize
+import de.jeanlucmakiola.calendula.ui.common.positionOf
 import kotlinx.coroutines.launch
+import kotlinx.datetime.DateTimeUnit
 import kotlinx.datetime.LocalDate
 import kotlinx.datetime.TimeZone
+import kotlinx.datetime.plus
+import kotlinx.datetime.toLocalDateTime
 import kotlin.time.Instant
+import java.time.format.TextStyle as JavaTextStyle
+import java.util.Locale
 
-// No file-level zone constant here on purpose: it would be fixed for the process
-// lifetime and drift from the zone AgendaViewModel groups in after a device
-// time-zone change. The zone travels on AgendaUiState.Success instead.
+private val zone = TimeZone.currentSystemDefault()
 
 @OptIn(ExperimentalMaterial3Api::class)
 @Composable
 fun AgendaScreen(
     selectedView: CalendarView,
     onSelectView: (CalendarView) -> Unit,
-    onOpenDay: (LocalDate) -> Unit,
     onEventClick: (EventInstance) -> Unit,
     onOpenSettings: () -> Unit,
-    onOpenSearch: () -> Unit,
     onCreateEvent: (LocalDate, Int?) -> Unit,
-    quickSwitchViews: List<CalendarView> = IMPLEMENTED_VIEWS,
-    drawerViewOrder: List<CalendarView> = IMPLEMENTED_VIEWS,
-    todayInToolbar: Boolean = false,
     modifier: Modifier = Modifier,
     viewModel: AgendaViewModel = hiltViewModel(),
 ) {
     val state by viewModel.state.collectAsStateWithLifecycle()
     val anchor by viewModel.anchor.collectAsStateWithLifecycle()
-    val pastDisplay by viewModel.pastEventDisplay.collectAsStateWithLifecycle()
-    val showToday by viewModel.showToday.collectAsStateWithLifecycle()
-    val weekStart by viewModel.weekStart.collectAsStateWithLifecycle()
 
     val scrollBehavior = TopAppBarDefaults.pinnedScrollBehavior()
     val drawerState = rememberDrawerState(DrawerValue.Closed)
     val scope = rememberCoroutineScope()
-    var showRangePicker by remember { mutableStateOf(false) }
 
     val isOnToday = when (val s = state) {
         is AgendaUiState.Success -> s.anchor == s.today
         else -> true
     }
-    val successState = state as? AgendaUiState.Success
 
     ModalNavigationDrawer(
         drawerState = drawerState,
@@ -112,8 +97,6 @@ fun AgendaScreen(
             CalendarDrawer(
                 currentView = selectedView,
                 currentDate = anchor,
-                drawerState = drawerState,
-                viewOrder = drawerViewOrder,
                 onSelectView = { view ->
                     onSelectView(view)
                     scope.launch { drawerState.close() }
@@ -134,155 +117,37 @@ fun AgendaScreen(
             topBar = {
                 AgendaTopBar(
                     selectedView = selectedView,
-                    onCycleView = { onSelectView(selectedView.next(quickSwitchViews)) },
+                    onCycleView = { onSelectView(selectedView.next()) },
                     onOpenDrawer = { scope.launch { drawerState.open() } },
-                    onOpenSearch = onOpenSearch,
-                    showTodayButton = todayInToolbar,
-                    onToday = viewModel::goToToday,
                     scrollBehavior = scrollBehavior,
                 )
             },
             floatingActionButton = {
                 CalendarFabColumn(
-                    todayVisible = !isOnToday && !todayInToolbar,
+                    todayVisible = !isOnToday,
                     todayText = stringResource(R.string.agenda_today_action),
                     onToday = viewModel::goToToday,
                     onCreate = { onCreateEvent(anchor, null) },
                 )
             },
         ) { innerPadding ->
-            Column(
+            AgendaContent(
+                state = state,
+                onRetry = viewModel::goToToday,
+                onEventClick = onEventClick,
                 modifier = Modifier
-                    .fillMaxSize()
-                    .padding(innerPadding),
-            ) {
-                // One bar at the top: the "showing …" header on the left and the
-                // session range switcher on the right (one settings toggle).
-                successState?.takeIf { it.showRangeBar }?.let { s ->
-                    Row(
-                        verticalAlignment = Alignment.CenterVertically,
-                        // end aligns the selector's right edge with the top-bar view
-                        // switcher (its 8.dp margin + the app bar's 4.dp inset).
-                        modifier = Modifier
-                            .fillMaxWidth()
-                            .padding(start = 28.dp, end = 12.dp, top = 8.dp, bottom = 8.dp),
-                    ) {
-                        AgendaRangeBanner(
-                            range = s.range,
-                            start = s.anchor,
-                            end = s.rangeEnd,
-                            modifier = Modifier.weight(1f),
-                        )
-                        AgendaRangePill(
-                            range = s.range,
-                            isOverride = s.rangeIsOverride,
-                            onClick = { showRangePicker = true },
-                        )
-                    }
-                }
-                AgendaContent(
-                    state = state,
-                    pastDisplay = pastDisplay,
-                    showToday = showToday,
-                    onRetry = viewModel::goToToday,
-                    onEventClick = onEventClick,
-                    onOpenDay = onOpenDay,
-                    modifier = Modifier
-                        .weight(1f)
-                        .fillMaxWidth(),
-                )
-            }
+                    .padding(innerPadding)
+                    .fillMaxSize(),
+            )
         }
     }
-
-    if (showRangePicker) {
-        AgendaRangePicker(
-            title = stringResource(R.string.settings_agenda_range),
-            description = stringResource(R.string.agenda_range_override_hint),
-            selected = successState?.range ?: AgendaRange.Month,
-            weekStart = weekStart,
-            onSelect = viewModel::setRangeOverride,
-            onDismiss = { showRangePicker = false },
-        )
-    }
-}
-
-/**
- * The agenda's current range, tapped to open the range picker as a session-only
- * override. Shares the top-bar view switcher's button shape so the two read as a
- * family, but stays low-emphasis — a subtle neutral surface tint rather than the
- * switcher's secondary container, so it doesn't compete. Fills with the primary
- * container only while an override is active, to make that temporary state clear.
- */
-@Composable
-private fun AgendaRangePill(
-    range: AgendaRange,
-    isOverride: Boolean,
-    onClick: () -> Unit,
-    modifier: Modifier = Modifier,
-) {
-    FilledTonalButton(
-        onClick = onClick,
-        shape = MaterialTheme.shapes.large,
-        colors = ButtonDefaults.filledTonalButtonColors(
-            containerColor = if (isOverride) {
-                MaterialTheme.colorScheme.primaryContainer
-            } else {
-                MaterialTheme.colorScheme.surfaceContainerHigh
-            },
-            contentColor = if (isOverride) {
-                MaterialTheme.colorScheme.onPrimaryContainer
-            } else {
-                MaterialTheme.colorScheme.onSurfaceVariant
-            },
-        ),
-        modifier = modifier,
-    ) {
-        Text(
-            text = agendaRangeLabel(range),
-            style = MaterialTheme.typography.labelLarge,
-        )
-    }
-}
-
-/**
- * A header naming the concrete window currently shown under a "showing …" label,
- * e.g. "27 Jun 2026" / "27 Jun – 3 Jul 2026" / "June 2026". The range's name
- * lives on the selector button beside it, so it isn't repeated here.
- */
-@Composable
-private fun AgendaRangeBanner(
-    range: AgendaRange,
-    start: LocalDate,
-    end: LocalDate,
-    modifier: Modifier = Modifier,
-) {
-    val locale = currentLocale()
-    val window = agendaRangeWindowSummary(range, start, end, locale)
-    Column(modifier = modifier) {
-        Text(
-            text = stringResource(R.string.agenda_range_showing_label),
-            style = MaterialTheme.typography.labelMedium,
-            color = MaterialTheme.colorScheme.onSurfaceVariant,
-        )
-        // Just the concrete dates — the range's name ("Next 30 days") already
-        // sits on the selector button to the right, so repeating it here is noise.
-        Text(
-            text = window,
-            style = MaterialTheme.typography.titleMedium,
-            color = MaterialTheme.colorScheme.onSurface,
-        )
-    }
 }
 
 @Composable
 private fun AgendaContent(
     state: AgendaUiState,
-    pastDisplay: PastEventDisplay,
-    showToday: Boolean,
     onRetry: () -> Unit,
     onEventClick: (EventInstance) -> Unit,
-    onOpenDay: (LocalDate) -> Unit,
     modifier: Modifier = Modifier,
 ) {
     when (state) {
@@ -290,55 +155,20 @@ private fun AgendaContent(
         is AgendaUiState.Failure -> Box(modifier) {
             CalendarFailure(reason = state.reason, onRetry = onRetry)
         }
-        is AgendaUiState.Success -> {
-            val now by rememberCurrentMinute()
-            // Hiding drops finished events — and any day they leave empty; dimming
-            // keeps them but fades the row. Recomputed each minute so events fall
-            // away (or fade) as they end while the screen stays open.
-            val filtered = if (pastDisplay == PastEventDisplay.HIDE) {
-                state.days.mapNotNull { day ->
-                    val remaining = day.events.filterNot { it.hasEnded(now) }
-                    if (remaining.isEmpty()) null else day.copy(events = remaining)
-                }
-            } else {
-                state.days
-            }
-            // Anchor today with a "nothing left today" placeholder — but only when
-            // the window actually starts on today; a jumped-to date has no today in
-            // it, so anchoring there would be misleading (#35).
-            val days = anchorTodayIfMissing(
-                days = filtered,
-                today = state.today,
-                enabled = showToday && state.anchor == state.today,
-            )
-            if (days.isEmpty()) {
+        is AgendaUiState.Success ->
+            if (state.days.isEmpty()) {
                 AgendaEmpty(modifier)
             } else {
-                AgendaList(
-                    days = days,
-                    today = state.today,
-                    zone = state.zone,
-                    dimPast = pastDisplay == PastEventDisplay.DIM,
-                    now = now,
-                    onEventClick = onEventClick,
-                    onOpenDay = onOpenDay,
-                    modifier = modifier,
-                )
+                AgendaList(state = state, onEventClick = onEventClick, modifier = modifier)
             }
-        }
     }
 }
 
 @OptIn(ExperimentalFoundationApi::class)
 @Composable
 private fun AgendaList(
-    days: List<AgendaDay>,
-    today: LocalDate,
-    zone: TimeZone,
-    dimPast: Boolean,
-    now: Instant,
+    state: AgendaUiState.Success,
     onEventClick: (EventInstance) -> Unit,
-    onOpenDay: (LocalDate) -> Unit,
     modifier: Modifier = Modifier,
 ) {
     LazyColumn(
@@ -346,42 +176,69 @@ private fun AgendaList(
         // Bottom inset clears the FAB stack so the last row stays tappable.
         contentPadding = PaddingValues(top = 8.dp, bottom = 96.dp),
     ) {
-        days.forEach { day ->
+        state.days.forEach { day ->
             stickyHeader(key = "header-${day.date}") {
-                AgendaDayHeader(date = day.date, today = today, onOpenDay = onOpenDay)
+                AgendaDayHeader(date = day.date, today = state.today)
             }
-            if (day.events.isEmpty()) {
-                // An anchored, event-less today (#35) — "nothing left today".
-                item(key = "placeholder-${day.date}") {
-                    AgendaEmptyDayRow(
-                        text = stringResource(R.string.agenda_no_more_today),
-                        onClick = { onOpenDay(day.date) },
-                    )
-                }
-            } else {
-                itemsIndexed(
-                    items = day.events,
-                    // Scope the key by day: a multi-day event appears under every
-                    // day it spans, so its instanceId alone is not unique across
-                    // the list (LazyColumn requires unique keys).
-                    key = { _, event -> "${day.date}-${event.instanceId}" },
-                ) { index, event ->
-                    AgendaEventRow(
-                        event = event,
-                        day = day.date,
-                        zone = zone,
-                        position = positionOf(index, day.events.size),
-                        dimmed = dimPast && event.hasEnded(now),
-                        modifier = animateItemMotion(),
-                        onClick = { onEventClick(event) },
-                    )
-                }
+            itemsIndexed(
+                items = day.events,
+                key = { _, event -> event.instanceId },
+            ) { index, event ->
+                AgendaEventRow(
+                    event = event,
+                    position = positionOf(index, day.events.size),
+                    onClick = { onEventClick(event) },
+                )
             }
             item(key = "gap-${day.date}") { Spacer(Modifier.height(8.dp)) }
         }
     }
 }
 
+@Composable
+private fun AgendaDayHeader(date: LocalDate, today: LocalDate) {
+    Surface(
+        color = MaterialTheme.colorScheme.surface,
+        modifier = Modifier.fillMaxWidth(),
+    ) {
+        Text(
+            text = agendaDayLabel(date, today),
+            style = MaterialTheme.typography.titleSmall,
+            color = if (date == today) {
+                MaterialTheme.colorScheme.primary
+            } else {
+                MaterialTheme.colorScheme.onSurfaceVariant
+            },
+            modifier = Modifier.padding(start = 28.dp, end = 28.dp, top = 16.dp, bottom = 8.dp),
+        )
+    }
+}
+
+@Composable
+private fun AgendaEventRow(
+    event: EventInstance,
+    position: Position,
+    onClick: () -> Unit,
+) {
+    val dark = isSystemInDarkTheme()
+    val title = event.title.ifBlank { stringResource(R.string.event_untitled) }
+    GroupedRow(
+        title = title,
+        summary = agendaTimeSummary(event),
+        position = position,
+        minHeight = 64.dp,
+        leading = {
+            Box(
+                modifier = Modifier
+                    .size(width = 6.dp, height = 36.dp)
+                    .clip(RoundedCornerShape(3.dp))
+                    .background(pastelize(event.color, dark)),
+            )
+        },
+        onClick = onClick,
+    )
+}
+
 @Composable
 private fun AgendaEmpty(modifier: Modifier = Modifier) {
     Column(
@@ -390,7 +247,7 @@ private fun AgendaEmpty(modifier: Modifier = Modifier) {
         horizontalAlignment = Alignment.CenterHorizontally,
     ) {
         Icon(
-            imageVector = Icons.Filled.Coffee,
+            imageVector = Icons.Filled.EventAvailable,
             contentDescription = null,
             tint = MaterialTheme.colorScheme.onSurfaceVariant,
             modifier = Modifier.size(48.dp),
@@ -401,6 +258,13 @@ private fun AgendaEmpty(modifier: Modifier = Modifier) {
             style = MaterialTheme.typography.titleMedium,
             textAlign = TextAlign.Center,
         )
+        Spacer(Modifier.height(4.dp))
+        Text(
+            text = stringResource(R.string.agenda_empty_subtitle),
+            style = MaterialTheme.typography.bodyMedium,
+            color = MaterialTheme.colorScheme.onSurfaceVariant,
+            textAlign = TextAlign.Center,
+        )
     }
 }
 
@@ -410,9 +274,6 @@ private fun AgendaTopBar(
     selectedView: CalendarView,
     onCycleView: () -> Unit,
     onOpenDrawer: () -> Unit,
-    onOpenSearch: () -> Unit,
-    showTodayButton: Boolean,
-    onToday: () -> Unit,
     scrollBehavior: TopAppBarScrollBehavior,
 ) {
     TopAppBar(
@@ -431,13 +292,6 @@ private fun AgendaTopBar(
             }
         },
         actions = {
-            TodayAction(show = showTodayButton, onToday = onToday)
-            IconButton(onClick = onOpenSearch) {
-                Icon(
-                    imageVector = Icons.Default.Search,
-                    contentDescription = stringResource(R.string.search_action),
-                )
-            }
             ViewSwitcherPill(
                 current = selectedView,
                 onCycle = onCycleView,
@@ -451,3 +305,40 @@ private fun AgendaTopBar(
         scrollBehavior = scrollBehavior,
     )
 }
+
+/** "Today · Wed, 17. Jun 2026" — relative word for today/tomorrow, else the date. */
+@Composable
+private fun agendaDayLabel(date: LocalDate, today: LocalDate): String {
+    val relative = when (date) {
+        today -> stringResource(R.string.agenda_header_today)
+        today.plus(1, DateTimeUnit.DAY) -> stringResource(R.string.agenda_header_tomorrow)
+        else -> null
+    }
+    val formatted = formatAgendaDate(date)
+    return if (relative != null) "$relative · $formatted" else formatted
+}
+
+/** Time line under the title: "09:00 – 10:00 · Location", "All day", etc. */
+@Composable
+private fun agendaTimeSummary(event: EventInstance): String {
+    val time = if (event.isAllDay) {
+        stringResource(R.string.event_detail_all_day)
+    } else {
+        "${formatTime(event.start)} – ${formatTime(event.end)}"
+    }
+    val location = event.location?.takeIf { it.isNotBlank() }
+    return if (location != null) "$time · $location" else time
+}
+
+private fun formatTime(instant: Instant): String {
+    val t = instant.toLocalDateTime(zone).time
+    return "%02d:%02d".format(t.hour, t.minute)
+}
+
+private fun formatAgendaDate(date: LocalDate): String {
+    val locale = Locale.getDefault()
+    val java = java.time.LocalDate.of(date.year, date.month.ordinal + 1, date.day)
+    val weekday = java.dayOfWeek.getDisplayName(JavaTextStyle.SHORT, locale)
+    val monthName = java.month.getDisplayName(JavaTextStyle.SHORT, locale)
+    return "$weekday, ${date.day}. $monthName ${date.year}"
+}

app/src/main/java/de/jeanlucmakiola/calendula/ui/agenda/AgendaUiState.kt

@@ -2,43 +2,9 @@ package de.jeanlucmakiola.calendula.ui.agenda
 
 import de.jeanlucmakiola.calendula.domain.EventInstance
 import de.jeanlucmakiola.calendula.domain.FailureReason
-import de.jeanlucmakiola.calendula.domain.spanFirstDay
-import de.jeanlucmakiola.calendula.domain.spanLastDay
-import kotlinx.datetime.DateTimeUnit
 import kotlinx.datetime.LocalDate
 import kotlinx.datetime.TimeZone
-import kotlinx.datetime.plus
-import kotlin.time.Instant
-
-/**
- * What an agenda row's time line should convey for an event on a given day —
- * the part of a multi-day span that [day] falls in. Pure and shared so the
- * agenda screen and the agenda widget label multi-day events identically; each
- * surface only formats the instants into its own locale/24h string.
- */
-sealed interface AgendaTimeLabel {
-    /** An all-day event, or a whole in-between day of a multi-day span. */
-    data object AllDay : AgendaTimeLabel
-    /** The first day of a multi-day timed event: when it begins. */
-    data class Starts(val start: Instant) : AgendaTimeLabel
-    /** The last day of a multi-day timed event: when it ends. */
-    data class Ends(val end: Instant) : AgendaTimeLabel
-    /** A single-day timed event: its start–end range. */
-    data class Range(val start: Instant, val end: Instant) : AgendaTimeLabel
-}
-
-/** The [AgendaTimeLabel] for [event] as it appears on [day], resolved in [zone]. */
-fun agendaTimeLabel(event: EventInstance, day: LocalDate, zone: TimeZone): AgendaTimeLabel {
-    if (event.isAllDay) return AgendaTimeLabel.AllDay
-    val firstDay = event.spanFirstDay(zone)
-    val lastDay = event.spanLastDay(zone)
-    return when {
-        firstDay == lastDay -> AgendaTimeLabel.Range(event.start, event.end)
-        day <= firstDay -> AgendaTimeLabel.Starts(event.start)
-        day >= lastDay -> AgendaTimeLabel.Ends(event.end)
-        else -> AgendaTimeLabel.AllDay // a full in-between day
-    }
-}
+import kotlinx.datetime.toLocalDateTime
 
 /** One calendar day with at least one event, for the agenda list. */
 data class AgendaDay(
@@ -49,69 +15,31 @@ data class AgendaDay(
 
 /**
  * Group flat [instances] into forward-looking [AgendaDay]s (only days that
- * actually carry events). A multi-day event surfaces on *every* day it spans,
- * not just its first — clamped to [[anchor], [windowEnd]] so an event that began
- * before the window (ongoing) still lists from the anchor day, and one running
- * past the window stops at the last visible day. Within a day, all-day events
- * sort first, then ascending by start time, then title.
+ * actually carry events). An event that began before [anchor] (ongoing or
+ * multi-day) is clamped to the anchor day so it still surfaces on top. Within a
+ * day, all-day events sort first, then ascending by start time, then title.
  *
  * Shared by the Agenda screen and the agenda home-screen widget so both group
  * and order identically.
  */
 fun groupAgendaDays(
     anchor: LocalDate,
-    windowEnd: LocalDate,
     instances: List<EventInstance>,
     zone: TimeZone,
-): List<AgendaDay> {
-    val byDay = sortedMapOf<LocalDate, MutableList<EventInstance>>()
-    for (instance in instances) {
-        val firstDay = instance.spanFirstDay(zone).coerceAtLeast(anchor)
-        val lastDay = instance.spanLastDay(zone).coerceAtMost(windowEnd)
-        // Skip instances that don't actually occupy any day in [[anchor], [windowEnd]].
-        // The provider returns an event whenever its instant span overlaps the query
-        // window, but all-day events live at UTC midnights with an exclusive end: east
-        // of UTC that end dips just past local midnight, so *yesterday's* all-day event
-        // overlaps today's window start and comes back even though its true last day
-        // (resolved in UTC) is before the anchor. Clamping it up to the anchor would
-        // surface it under "today" (issue #65); drop it instead. The symmetric case —
-        // a next-day all-day event overlapping the window's last instant — drops too.
-        if (lastDay < firstDay) continue
-        var day = firstDay
-        while (day <= lastDay) {
-            byDay.getOrPut(day) { mutableListOf() }.add(instance)
-            day = day.plus(1, DateTimeUnit.DAY)
-        }
-    }
-    return byDay.map { (date, dayEvents) ->
-        AgendaDay(
-            date = date,
-            events = dayEvents.sortedWith(
-                compareByDescending<EventInstance> { it.isAllDay }
-                    .thenBy { it.start }
-                    .thenBy { it.title },
-            ),
-        )
-    }
-}
-
-/**
- * Ensure [today] surfaces as the first agenda day even when it carries no
- * (remaining) events, by prepending an empty-event [AgendaDay] the agenda widget
- * renders as a "nothing left today" placeholder. A no-op unless [enabled], and
- * when today already has its own day in [days]. Keeps today anchored at the top
- * so a glance tells today's events apart from a future day's (issue #35).
- */
-fun anchorTodayIfMissing(
-    days: List<AgendaDay>,
-    today: LocalDate,
-    enabled: Boolean,
 ): List<AgendaDay> =
-    if (enabled && days.none { it.date == today }) {
-        listOf(AgendaDay(today, emptyList())) + days
-    } else {
-        days
-    }
+    instances
+        .groupBy { it.start.toLocalDateTime(zone).date.coerceAtLeast(anchor) }
+        .toSortedMap()
+        .map { (date, dayEvents) ->
+            AgendaDay(
+                date = date,
+                events = dayEvents.sortedWith(
+                    compareByDescending<EventInstance> { it.isAllDay }
+                        .thenBy { it.start }
+                        .thenBy { it.title },
+                ),
+            )
+        }
 
 /**
  * State for the Agenda view: a flat, forward-looking list of upcoming events
@@ -125,20 +53,5 @@ sealed interface AgendaUiState {
         val anchor: LocalDate,
         val today: LocalDate,
         val days: List<AgendaDay>,
-        /** The range currently in effect — the saved default or a session override. */
-        val range: AgendaRange,
-        /** True when [range] is a temporary in-view override of the saved default. */
-        val rangeIsOverride: Boolean,
-        /** Last day the current [range] covers (inclusive), for the range header. */
-        val rangeEnd: LocalDate,
-        /** Whether to show the top range bar — header + switcher (toggle, on by default). */
-        val showRangeBar: Boolean,
-        /**
-         * The zone [days] were grouped in. Carried in the state rather than
-         * re-read by the screen so labelling and grouping cannot disagree: an
-         * event's "Starts …/Ends …/All day" line is only correct relative to the
-         * same zone that decided which day it was filed under.
-         */
-        val zone: TimeZone,
     ) : AgendaUiState
 }

app/src/main/java/de/jeanlucmakiola/calendula/ui/agenda/AgendaViewModel.kt

@@ -5,9 +5,6 @@ import androidx.lifecycle.viewModelScope
 import dagger.hilt.android.lifecycle.HiltViewModel
 import de.jeanlucmakiola.calendula.data.calendar.CalendarRepository
 import de.jeanlucmakiola.calendula.data.di.IoDispatcher
-import de.jeanlucmakiola.calendula.data.prefs.PastEventDisplay
-import de.jeanlucmakiola.calendula.data.prefs.SettingsPrefs
-import de.jeanlucmakiola.calendula.data.prefs.firstDayOfWeek
 import de.jeanlucmakiola.calendula.domain.CalendarSource
 import de.jeanlucmakiola.calendula.domain.EventInstance
 import de.jeanlucmakiola.calendula.domain.FailureReason
@@ -22,7 +19,6 @@ import kotlinx.coroutines.flow.flatMapLatest
 import kotlinx.coroutines.flow.flowOn
 import kotlinx.coroutines.flow.stateIn
 import kotlinx.datetime.DateTimeUnit
-import kotlinx.datetime.DayOfWeek
 import kotlinx.datetime.LocalDate
 import kotlinx.datetime.TimeZone
 import kotlinx.datetime.atStartOfDayIn
@@ -34,52 +30,16 @@ import kotlin.time.Clock
 import kotlin.time.Instant
 import javax.inject.Inject
 
+/** How far ahead the agenda loads events from its anchor day. */
+internal const val AGENDA_WINDOW_DAYS = 60
+
 @OptIn(ExperimentalCoroutinesApi::class)
 @HiltViewModel
 class AgendaViewModel @Inject constructor(
     private val repository: CalendarRepository,
-    settingsPrefs: SettingsPrefs,
     @IoDispatcher private val io: CoroutineDispatcher,
 ) : ViewModel() {
 
-    // The saved agenda range plus the range-bar visibility toggle.
-    private val agendaSettings = combine(
-        settingsPrefs.agendaScreenRange,
-        settingsPrefs.agendaShowRangeBar,
-    ) { range, showBar -> AgendaSettings(range, showBar) }
-
-    /**
-     * First day of the week, for the calendar-aligned "this week" range. Public
-     * because the range picker resolves each option to real dates, which needs
-     * the same week start the window is built from.
-     */
-    val weekStart: StateFlow<DayOfWeek> = settingsPrefs.firstDayOfWeek(viewModelScope)
-
-    /**
-     * How to treat events that already ended today (show / dim / hide). A display
-     * concern only, so it rides alongside the data state rather than re-querying;
-     * the screen combines it with a per-minute "now" to fade or drop past rows.
-     */
-    val pastEventDisplay: StateFlow<PastEventDisplay> = settingsPrefs.pastEventDisplay
-        .stateIn(
-            scope = viewModelScope,
-            started = SharingStarted.WhileSubscribed(5_000L),
-            initialValue = PastEventDisplay.SHOW,
-        )
-
-    /**
-     * Whether to keep today anchored at the top with a "nothing left today"
-     * placeholder even once it has no remaining events (#35). A display concern
-     * applied in the composition (after past-event filtering), so it rides
-     * alongside the data state like [pastEventDisplay] rather than re-querying.
-     */
-    val showToday: StateFlow<Boolean> = settingsPrefs.agendaShowToday
-        .stateIn(
-            scope = viewModelScope,
-            started = SharingStarted.WhileSubscribed(5_000L),
-            initialValue = true,
-        )
-
     private val zone = TimeZone.currentSystemDefault()
 
     private val todayDate: LocalDate
@@ -88,32 +48,14 @@ class AgendaViewModel @Inject constructor(
     private val _anchor = MutableStateFlow(todayDate)
     val anchor: StateFlow<LocalDate> = _anchor
 
-    // A transient, in-view override of the saved agenda range. Held in memory
-    // (not persisted), so it survives view switches and rotation within the
-    // session but resets to the saved default when the app is relaunched.
-    private val _rangeOverride = MutableStateFlow<AgendaRange?>(null)
-
-    val state: StateFlow<AgendaUiState> =
-        combine(_anchor, agendaSettings, _rangeOverride, weekStart) { anchor, settings, override, weekStart ->
-            AgendaParams(
-                anchor = anchor,
-                range = override ?: settings.range,
-                rangeIsOverride = override != null && override != settings.range,
-                weekStart = weekStart,
-                showRangeBar = settings.showBar,
-            )
-        }
-        .flatMapLatest { params ->
-            val window = agendaRange(
-                params.anchor,
-                params.range.dayCount(params.anchor, params.weekStart) - 1,
-                zone,
-            )
+    val state: StateFlow<AgendaUiState> = _anchor
+        .flatMapLatest { anchor ->
+            val range = agendaRange(anchor, AGENDA_WINDOW_DAYS, zone)
             combine(
                 repository.calendars(),
-                repository.instances(window),
+                repository.instances(range),
             ) { calendars, instances ->
-                buildState(params, calendars, instances)
+                buildState(anchor, calendars, instances)
             }
         }
         .catch { emit(AgendaUiState.Failure(FailureReason.ProviderUnavailable)) }
@@ -133,48 +75,16 @@ class AgendaViewModel @Inject constructor(
         _anchor.value = date
     }
 
-    /** Temporarily override the agenda range for this session (the bottom-left pill). */
-    fun setRangeOverride(range: AgendaRange) {
-        _rangeOverride.value = range
-    }
-
-    private data class AgendaSettings(
-        val range: AgendaRange,
-        val showBar: Boolean,
-    )
-
-    private data class AgendaParams(
-        val anchor: LocalDate,
-        val range: AgendaRange,
-        val rangeIsOverride: Boolean,
-        val weekStart: DayOfWeek,
-        val showRangeBar: Boolean,
-    )
-
     private fun buildState(
-        params: AgendaParams,
+        anchor: LocalDate,
         calendars: List<CalendarSource>,
         instances: List<EventInstance>,
     ): AgendaUiState {
         if (calendars.isEmpty()) {
             return AgendaUiState.Failure(FailureReason.NoCalendarsConfigured)
         }
-        val anchor = params.anchor
-        val rangeEnd = anchor.plus(
-            params.range.dayCount(anchor, params.weekStart) - 1,
-            DateTimeUnit.DAY,
-        )
-        val days = groupAgendaDays(anchor, rangeEnd, instances, zone)
-        return AgendaUiState.Success(
-            anchor = anchor,
-            today = todayDate,
-            days = days,
-            range = params.range,
-            rangeIsOverride = params.rangeIsOverride,
-            rangeEnd = rangeEnd,
-            showRangeBar = params.showRangeBar,
-            zone = zone,
-        )
+        val days = groupAgendaDays(anchor, instances, zone)
+        return AgendaUiState.Success(anchor = anchor, today = todayDate, days = days)
     }
 }
 

app/src/main/java/de/jeanlucmakiola/calendula/ui/calendars/BackupScreen.kt

@@ -1,373 +0,0 @@
-package de.jeanlucmakiola.calendula.ui.calendars
-
-import android.net.Uri
-import android.text.format.DateUtils
-import androidx.activity.compose.rememberLauncherForActivityResult
-import androidx.activity.result.contract.ActivityResultContracts
-import androidx.compose.foundation.layout.Column
-import androidx.compose.foundation.layout.Row
-import androidx.compose.foundation.layout.Spacer
-import androidx.compose.foundation.layout.fillMaxWidth
-import androidx.compose.foundation.layout.height
-import androidx.compose.foundation.layout.padding
-import androidx.compose.foundation.layout.width
-import androidx.compose.material.icons.Icons
-import androidx.compose.material.icons.filled.FileDownload
-import androidx.compose.material.icons.filled.FileUpload
-import androidx.compose.material.icons.filled.Schedule
-import androidx.compose.material3.AlertDialog
-import androidx.compose.material3.Button
-import androidx.compose.material3.Checkbox
-import androidx.compose.material3.MaterialTheme
-import androidx.compose.material3.SnackbarHost
-import androidx.compose.material3.SnackbarHostState
-import androidx.compose.material3.Switch
-import androidx.compose.material3.Text
-import androidx.compose.material3.TextButton
-import androidx.compose.runtime.Composable
-import androidx.compose.runtime.LaunchedEffect
-import androidx.compose.runtime.getValue
-import androidx.compose.runtime.mutableStateOf
-import androidx.compose.runtime.remember
-import androidx.compose.runtime.saveable.listSaver
-import androidx.compose.runtime.saveable.rememberSaveable
-import androidx.compose.runtime.setValue
-import androidx.compose.ui.Alignment
-import androidx.compose.ui.Modifier
-import androidx.compose.ui.platform.LocalContext
-import androidx.compose.ui.res.pluralStringResource
-import androidx.compose.ui.res.stringArrayResource
-import androidx.compose.ui.res.stringResource
-import androidx.compose.ui.unit.dp
-import androidx.core.net.toUri
-import androidx.documentfile.provider.DocumentFile
-import androidx.hilt.navigation.compose.hiltViewModel
-import androidx.lifecycle.compose.collectAsStateWithLifecycle
-import de.jeanlucmakiola.calendula.R
-import de.jeanlucmakiola.calendula.data.prefs.BackupStatus
-import de.jeanlucmakiola.calendula.data.prefs.SettingsPrefs
-import de.jeanlucmakiola.calendula.domain.CalendarSource
-import de.jeanlucmakiola.calendula.domain.isEventTarget
-import de.jeanlucmakiola.calendula.ui.common.CalendarColorChip
-import de.jeanlucmakiola.calendula.ui.common.LeadingAvatar
-import de.jeanlucmakiola.floret.components.CollapsingScaffold
-import de.jeanlucmakiola.floret.components.DialogAmountField
-import de.jeanlucmakiola.floret.components.DialogUnitDropdown
-import de.jeanlucmakiola.floret.components.FullScreenPicker
-import de.jeanlucmakiola.floret.components.GroupedRow
-import de.jeanlucmakiola.floret.components.Position
-import de.jeanlucmakiola.floret.components.positionOf
-import java.time.LocalDate
-
-// SAF mime filter for the restore picker. Source apps hand `.ics` files out
-// under several mimes, so accept the common set.
-private val RESTORE_MIME_TYPES = arrayOf(
-    "text/calendar",
-    "application/octet-stream",
-    "text/plain",
-)
-
-/**
- * Backup & restore (#69): `.ics` export and restore for local calendars, with
- * optional automatic backup. Shares [CalendarsViewModel] with the manager.
- *
- * A full-screen destination hoisted in `CalendarHost`; [onBack] pops it,
- * [onImport] hands a picked file to the app's normal .ics import flow.
- */
-@Composable
-fun BackupScreen(
-    onBack: () -> Unit,
-    onImport: (Uri) -> Unit,
-    viewModel: CalendarsViewModel = hiltViewModel(),
-) {
-    val calendars by viewModel.calendars.collectAsStateWithLifecycle()
-    val backupResult by viewModel.backupResult.collectAsStateWithLifecycle()
-    val autoBackup by viewModel.autoBackup.collectAsStateWithLifecycle()
-
-    val context = LocalContext.current
-    val snackbarHostState = remember { SnackbarHostState() }
-
-    // Export covers local calendars only; managed special-dates mirrors are
-    // rebuilt from contacts. Restore can target anything the import picker offers.
-    val exportable = calendars.filter { it.isLocal && it.canModifyContents && !it.isManaged }
-    val canImport = calendars.any { it.isEventTarget }
-
-    // Exports everything eligible (null); the per-calendar selector owns its
-    // own launcher.
-    val createBackup = rememberLauncherForActivityResult(
-        contract = ActivityResultContracts.CreateDocument("text/calendar"),
-    ) { uri -> uri?.let { viewModel.exportBackup(it, null) } }
-    var showExportPicker by rememberSaveable { mutableStateOf(false) }
-
-    // Restore runs the picked file through the normal .ics import flow.
-    val openBackup = rememberLauncherForActivityResult(
-        contract = ActivityResultContracts.OpenDocument(),
-    ) { uri -> uri?.let(onImport) }
-
-    // The VM persists the write grant so background runs can keep writing.
-    val pickFolder = rememberLauncherForActivityResult(
-        contract = ActivityResultContracts.OpenDocumentTree(),
-    ) { uri -> uri?.let(viewModel::setAutoBackupFolder) }
-    var showInterval by remember { mutableStateOf(false) }
-
-    val backupFailedText = stringResource(R.string.calendars_backup_failed)
-    LaunchedEffect(backupResult) {
-        when (val r = backupResult) {
-            is BackupResult.Success -> {
-                snackbarHostState.showSnackbar(
-                    context.resources.getQuantityString(
-                        R.plurals.calendars_backup_done, r.eventCount, r.eventCount,
-                    ),
-                )
-                viewModel.consumeBackupResult()
-            }
-            BackupResult.Failure -> {
-                snackbarHostState.showSnackbar(backupFailedText)
-                viewModel.consumeBackupResult()
-            }
-            null -> Unit
-        }
-    }
-
-    CollapsingScaffold(
-        title = stringResource(R.string.settings_section_backup),
-        onBack = onBack,
-        snackbarHost = { SnackbarHost(snackbarHostState) },
-        predictiveBack = true,
-    ) {
-        HintText(stringResource(R.string.calendars_backup_hint))
-
-        if (exportable.isNotEmpty()) {
-            GroupedRow(
-                title = stringResource(R.string.calendars_backup_action),
-                position = Position.Top,
-                leading = { LeadingAvatar(Icons.Default.FileDownload) },
-                onClick = {
-                    // A single exportable calendar skips the selector.
-                    if (exportable.size == 1) {
-                        runCatching { createBackup.launch("calendula-backup-${LocalDate.now()}.ics") }
-                    } else {
-                        showExportPicker = true
-                    }
-                },
-            )
-            GroupedRow(
-                title = stringResource(R.string.calendars_restore_action),
-                summary = stringResource(R.string.calendars_restore_hint),
-                position = Position.Middle,
-                leading = { LeadingAvatar(Icons.Default.FileUpload) },
-                onClick = { runCatching { openBackup.launch(RESTORE_MIME_TYPES) } },
-            )
-            GroupedRow(
-                title = stringResource(R.string.calendars_auto_backup),
-                summary = stringResource(R.string.calendars_auto_backup_hint),
-                position = if (autoBackup.enabled) Position.Middle else Position.Bottom,
-                leading = { LeadingAvatar(Icons.Default.Schedule) },
-                trailing = {
-                    Switch(checked = autoBackup.enabled, onCheckedChange = viewModel::setAutoBackupEnabled)
-                },
-                onClick = { viewModel.setAutoBackupEnabled(!autoBackup.enabled) },
-            )
-            if (autoBackup.enabled) {
-                GroupedRow(
-                    title = stringResource(R.string.calendars_auto_backup_folder),
-                    summary = rememberFolderName(autoBackup.folderUri)
-                        ?: stringResource(R.string.calendars_auto_backup_folder_unset),
-                    position = Position.Middle,
-                    onClick = { runCatching { pickFolder.launch(null) } },
-                )
-                GroupedRow(
-                    title = stringResource(R.string.calendars_auto_backup_interval),
-                    summary = backupIntervalLabel(autoBackup.intervalMinutes),
-                    position = Position.Bottom,
-                    onClick = { showInterval = true },
-                )
-                HintText(backupStatusText(autoBackup.status))
-            }
-        } else if (canImport) {
-            // Nothing to back up, but restore is still possible — don't hide
-            // it behind export eligibility.
-            SectionHeader(stringResource(R.string.calendars_restore_header))
-            HintText(stringResource(R.string.calendars_restore_hint))
-            GroupedRow(
-                title = stringResource(R.string.calendars_restore_action),
-                position = Position.Alone,
-                leading = { LeadingAvatar(Icons.Default.FileUpload) },
-                onClick = { runCatching { openBackup.launch(RESTORE_MIME_TYPES) } },
-            )
-        }
-    }
-
-    if (showExportPicker) {
-        ExportCalendarPicker(
-            calendars = exportable,
-            onExport = viewModel::exportBackup,
-            onDismiss = { showExportPicker = false },
-        )
-    }
-    if (showInterval) {
-        BackupIntervalDialog(
-            currentMinutes = autoBackup.intervalMinutes,
-            onConfirm = viewModel::setAutoBackupIntervalMinutes,
-            onDismiss = { showInterval = false },
-        )
-    }
-}
-
-/**
- * Choose which local calendars to include in a one-time `.ics` export. Defaults
- * to all selected; the Export action opens the SAF save dialog and hands back
- * the picked file with the chosen calendar ids.
- */
-@Composable
-private fun ExportCalendarPicker(
-    calendars: List<CalendarSource>,
-    onExport: (Uri, Set<Long>?) -> Unit,
-    onDismiss: () -> Unit,
-) {
-    // Deliberately not keyed on [calendars]: that list is observer-driven, so
-    // keying it would reset the user's de-selections on every provider re-emit.
-    var selected by rememberSaveable(
-        stateSaver = listSaver(
-            save = { it.toList() },
-            restore = { it.toSet() },
-        ),
-    ) {
-        mutableStateOf(calendars.map { it.id }.toSet())
-    }
-    val createBackup = rememberLauncherForActivityResult(
-        contract = ActivityResultContracts.CreateDocument("text/calendar"),
-    ) { uri ->
-        if (uri != null) {
-            onExport(uri, selected)
-            onDismiss()
-        }
-    }
-
-    FullScreenPicker(
-        title = stringResource(R.string.calendars_export_title),
-        onDismiss = onDismiss,
-    ) {
-        HintText(stringResource(R.string.calendars_export_hint))
-        calendars.forEachIndexed { index, calendar ->
-            val isSelected = calendar.id in selected
-            GroupedRow(
-                title = calendar.displayName,
-                summary = calendar.description,
-                position = positionOf(index, calendars.size),
-                leading = { CalendarColorChip(calendar.color) },
-                trailing = {
-                    Checkbox(
-                        checked = isSelected,
-                        onCheckedChange = { checked ->
-                            selected = if (checked) selected + calendar.id else selected - calendar.id
-                        },
-                    )
-                },
-                onClick = {
-                    selected = if (isSelected) selected - calendar.id else selected + calendar.id
-                },
-            )
-        }
-        Button(
-            onClick = {
-                runCatching { createBackup.launch("calendula-backup-${LocalDate.now()}.ics") }
-            },
-            enabled = selected.isNotEmpty(),
-            modifier = Modifier
-                .fillMaxWidth()
-                .padding(horizontal = 16.dp, vertical = 16.dp),
-        ) {
-            Text(stringResource(R.string.calendars_export_action))
-        }
-    }
-}
-
-/** Readable name of the persisted backup folder, resolved from its tree Uri. */
-@Composable
-private fun rememberFolderName(uriString: String?): String? {
-    val context = LocalContext.current
-    return remember(uriString) {
-        uriString?.let {
-            runCatching { DocumentFile.fromTreeUri(context, it.toUri())?.name }.getOrNull()
-        }
-    }
-}
-
-/** "Every 30 minutes" / "Every 2 hours" / "Every day" — the interval in its largest whole unit. */
-@Composable
-private fun backupIntervalLabel(minutes: Long): String {
-    val duration = when {
-        minutes % MINUTES_PER_WEEK == 0L ->
-            pluralStringResource(R.plurals.duration_weeks, (minutes / MINUTES_PER_WEEK).toInt(), (minutes / MINUTES_PER_WEEK).toInt())
-        minutes % MINUTES_PER_DAY == 0L ->
-            pluralStringResource(R.plurals.duration_days, (minutes / MINUTES_PER_DAY).toInt(), (minutes / MINUTES_PER_DAY).toInt())
-        minutes % 60L == 0L ->
-            pluralStringResource(R.plurals.duration_hours, (minutes / 60L).toInt(), (minutes / 60L).toInt())
-        else ->
-            pluralStringResource(R.plurals.duration_minutes, minutes.toInt(), minutes.toInt())
-    }
-    return stringResource(R.string.calendars_auto_backup_every, duration)
-}
-
-/** "Last backup: 5 minutes ago" / "… failed" / "No automatic backup yet". */
-@Composable
-private fun backupStatusText(status: BackupStatus): String {
-    if (status.lastRun == 0L) return stringResource(R.string.calendars_auto_backup_status_never)
-    val relative = DateUtils.getRelativeTimeSpanString(
-        status.lastRun, System.currentTimeMillis(), DateUtils.MINUTE_IN_MILLIS,
-    ).toString()
-    return if (status.lastSuccess) {
-        stringResource(R.string.calendars_auto_backup_status_ok, relative)
-    } else {
-        stringResource(R.string.calendars_auto_backup_status_failed, relative)
-    }
-}
-
-/** Amount + unit picker for the backup interval (floored at 30 minutes). */
-@Composable
-private fun BackupIntervalDialog(
-    currentMinutes: Long,
-    onConfirm: (Long) -> Unit,
-    onDismiss: () -> Unit,
-) {
-    // Pick the largest unit the current value divides into.
-    val unitMinutes = remember { listOf(1L, 60L, MINUTES_PER_DAY, MINUTES_PER_WEEK) }
-    val units = stringArrayResource(R.array.backup_interval_units).toList()
-    val initialUnit = unitMinutes.indexOfLast { currentMinutes % it == 0L }.coerceAtLeast(0)
-    var amount by rememberSaveable { mutableStateOf((currentMinutes / unitMinutes[initialUnit]).toString()) }
-    var unitIndex by rememberSaveable { mutableStateOf(initialUnit) }
-
-    AlertDialog(
-        onDismissRequest = onDismiss,
-        title = { Text(stringResource(R.string.calendars_auto_backup_interval)) },
-        text = {
-            Column {
-                Row(verticalAlignment = Alignment.CenterVertically) {
-                    DialogAmountField(value = amount, onValueChange = { amount = it }, placeholder = "1")
-                    Spacer(Modifier.width(12.dp))
-                    DialogUnitDropdown(label = units[unitIndex], entries = units) { unitIndex = it }
-                }
-                Spacer(Modifier.height(8.dp))
-                Text(
-                    text = stringResource(R.string.calendars_auto_backup_interval_min),
-                    style = MaterialTheme.typography.bodySmall,
-                    color = MaterialTheme.colorScheme.onSurfaceVariant,
-                )
-            }
-        },
-        confirmButton = {
-            TextButton(onClick = {
-                val value = amount.toLongOrNull()?.coerceAtLeast(1L) ?: 1L
-                onConfirm((value * unitMinutes[unitIndex]).coerceAtLeast(SettingsPrefs.MIN_BACKUP_INTERVAL))
-                onDismiss()
-            }) { Text(stringResource(R.string.reminder_custom_set)) }
-        },
-        dismissButton = {
-            TextButton(onClick = onDismiss) { Text(stringResource(R.string.dialog_cancel)) }
-        },
-    )
-}
-
-private const val MINUTES_PER_DAY = 1_440L
-private const val MINUTES_PER_WEEK = 10_080L

app/src/main/java/de/jeanlucmakiola/calendula/ui/calendars/CalendarVisibilityNotice.kt

@@ -1,71 +0,0 @@
-package de.jeanlucmakiola.calendula.ui.calendars
-
-import androidx.compose.material.icons.Icons
-import androidx.compose.material.icons.filled.VisibilityOff
-import androidx.compose.material3.AlertDialog
-import androidx.compose.material3.Icon
-import androidx.compose.material3.Text
-import androidx.compose.material3.TextButton
-import androidx.compose.runtime.Composable
-import androidx.compose.ui.res.stringResource
-import androidx.lifecycle.ViewModel
-import androidx.lifecycle.viewModelScope
-import dagger.hilt.android.lifecycle.HiltViewModel
-import de.jeanlucmakiola.calendula.R
-import de.jeanlucmakiola.calendula.data.calendar.CalendarVisibilityReconciler
-import de.jeanlucmakiola.calendula.data.prefs.CalendarPrefs
-import kotlinx.coroutines.flow.SharingStarted
-import kotlinx.coroutines.flow.StateFlow
-import kotlinx.coroutines.flow.map
-import kotlinx.coroutines.flow.stateIn
-import kotlinx.coroutines.launch
-import javax.inject.Inject
-
-/**
- * The one-time notice that Calendula now follows the device's per-calendar
- * visibility (#75), armed by `CalendarVisibilityReconciler`. The app does not
- * switch those calendars back on — that would un-hide them everywhere else too.
- */
-@HiltViewModel
-class CalendarVisibilityNoticeViewModel @Inject constructor(
-    private val prefs: CalendarPrefs,
-    private val reconciler: CalendarVisibilityReconciler,
-) : ViewModel() {
-
-    /**
-     * Reconcile whenever the app comes up with the calendar permission held,
-     * rather than off one grant route: a permission granted on Android's
-     * app-settings screen never reaches the permission screen's callback.
-     */
-    fun reconcile() {
-        viewModelScope.launch { reconciler.run() }
-    }
-
-    val pending: StateFlow<Boolean> = prefs.visibilityNoticePending
-        .map { it == true }
-        .stateIn(
-            scope = viewModelScope,
-            started = SharingStarted.WhileSubscribed(5_000L),
-            initialValue = false,
-        )
-
-    fun dismiss() {
-        viewModelScope.launch { prefs.setVisibilityNoticePending(false) }
-    }
-}
-
-/** Plain informational dialog — one acknowledgement, nothing to decide. */
-@Composable
-fun CalendarVisibilityNoticeDialog(onDismiss: () -> Unit) {
-    AlertDialog(
-        onDismissRequest = onDismiss,
-        icon = { Icon(Icons.Default.VisibilityOff, contentDescription = null) },
-        title = { Text(stringResource(R.string.calendars_visibility_notice_title)) },
-        text = { Text(stringResource(R.string.calendars_visibility_notice_message)) },
-        confirmButton = {
-            TextButton(onClick = onDismiss) {
-                Text(stringResource(R.string.dialog_ok))
-            }
-        },
-    )
-}

app/src/main/java/de/jeanlucmakiola/calendula/ui/calendars/CalendarsScreen.kt

@@ -4,13 +4,14 @@ import android.accounts.AccountManager
 import android.content.Context
 import android.content.Intent
 import android.provider.Settings
-import androidx.compose.animation.AnimatedVisibility
+import androidx.activity.compose.BackHandler
+import androidx.activity.compose.rememberLauncherForActivityResult
+import androidx.activity.result.contract.ActivityResultContracts
 import androidx.compose.foundation.background
 import androidx.compose.foundation.isSystemInDarkTheme
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.Column
-import androidx.compose.foundation.layout.ColumnScope
 import androidx.compose.foundation.layout.Row
 import androidx.compose.foundation.layout.Spacer
 import androidx.compose.foundation.layout.fillMaxSize
@@ -20,37 +21,31 @@ import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.size
 import androidx.compose.foundation.layout.width
 import androidx.compose.foundation.rememberScrollState
+import androidx.compose.foundation.shape.CircleShape
 import androidx.compose.foundation.shape.RoundedCornerShape
 import androidx.compose.foundation.verticalScroll
 import androidx.compose.material.icons.Icons
-import androidx.compose.material.icons.automirrored.filled.KeyboardArrowRight
+import androidx.compose.material.icons.automirrored.filled.ArrowBack
 import androidx.compose.material.icons.automirrored.filled.Notes
-import androidx.compose.material.icons.automirrored.filled.OpenInNew
 import androidx.compose.material.icons.filled.Add
-import androidx.compose.material.icons.filled.Backup
 import androidx.compose.material.icons.filled.CalendarMonth
 import androidx.compose.material.icons.filled.Close
 import androidx.compose.material.icons.filled.Delete
-import androidx.compose.material.icons.filled.Info
-import androidx.compose.material.icons.filled.MoreVert
+import androidx.compose.material.icons.filled.Edit
+import androidx.compose.material.icons.filled.FileDownload
+import androidx.compose.material.icons.filled.OpenInNew
 import androidx.compose.material.icons.filled.Palette
-import androidx.compose.material.icons.filled.PhoneAndroid
-import androidx.compose.material.icons.filled.Visibility
-import androidx.compose.material.icons.filled.VisibilityOff
 import androidx.compose.material3.AlertDialog
 import androidx.compose.material3.Button
-import androidx.compose.material3.DropdownMenu
-import androidx.compose.material3.DropdownMenuItem
 import androidx.compose.material3.ExperimentalMaterial3Api
-import androidx.compose.material3.HorizontalDivider
 import androidx.compose.material3.Icon
 import androidx.compose.material3.IconButton
 import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.OutlinedButton
 import androidx.compose.material3.Scaffold
 import androidx.compose.material3.SnackbarHost
 import androidx.compose.material3.SnackbarHostState
 import androidx.compose.material3.Surface
-import androidx.compose.material3.Switch
 import androidx.compose.material3.Text
 import androidx.compose.material3.TextButton
 import androidx.compose.material3.TopAppBar
@@ -64,65 +59,47 @@ import androidx.compose.runtime.saveable.rememberSaveable
 import androidx.compose.runtime.setValue
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
-import androidx.compose.ui.draw.alpha
+import androidx.compose.ui.draw.clip
 import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.graphics.vector.ImageVector
 import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.res.stringResource
-import androidx.compose.ui.semantics.contentDescription
-import androidx.compose.ui.semantics.semantics
+import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.text.input.KeyboardCapitalization
 import androidx.compose.ui.unit.dp
 import androidx.hilt.navigation.compose.hiltViewModel
 import androidx.lifecycle.compose.collectAsStateWithLifecycle
 import de.jeanlucmakiola.calendula.R
 import de.jeanlucmakiola.calendula.domain.CalendarSource
-import de.jeanlucmakiola.calendula.domain.CalendarStateLabel
-import de.jeanlucmakiola.calendula.domain.hasVisibilitySwitch
-import de.jeanlucmakiola.calendula.domain.isNotSynced
-import de.jeanlucmakiola.calendula.domain.orderedForManager
-import de.jeanlucmakiola.calendula.domain.stateLabels
-import de.jeanlucmakiola.calendula.data.calendar.CalendarColorPalette
-import de.jeanlucmakiola.calendula.ui.common.AccountKey
+import de.jeanlucmakiola.calendula.ui.common.CALENDAR_COLOR_PALETTE
 import de.jeanlucmakiola.calendula.ui.common.CalendarColorChip
-import de.jeanlucmakiola.calendula.ui.common.accountGroupTitle
-import de.jeanlucmakiola.calendula.ui.common.groupByAccount
-import de.jeanlucmakiola.calendula.ui.common.LocalSoftenColors
-import de.jeanlucmakiola.calendula.ui.common.eventAccent
-import de.jeanlucmakiola.calendula.ui.common.eventFill
-import de.jeanlucmakiola.calendula.ui.common.LeadingAvatar
-import de.jeanlucmakiola.calendula.ui.common.SourceLogo
-import de.jeanlucmakiola.calendula.ui.common.curatedSourcePackage
-import de.jeanlucmakiola.floret.components.CollapsingScaffold
-import de.jeanlucmakiola.floret.identity.collapseExit
-import de.jeanlucmakiola.floret.identity.expandEnter
-import de.jeanlucmakiola.floret.identity.predictiveBack
+import de.jeanlucmakiola.calendula.ui.common.CollapsingScaffold
 import de.jeanlucmakiola.calendula.ui.common.ColorSwatchRow
-import de.jeanlucmakiola.floret.components.GroupedListInset
-import de.jeanlucmakiola.floret.components.GroupedRow
-import de.jeanlucmakiola.floret.components.InlineTextField
-import de.jeanlucmakiola.floret.components.Position
+import de.jeanlucmakiola.calendula.ui.common.GroupedRow
+import de.jeanlucmakiola.calendula.ui.common.InlineTextField
+import de.jeanlucmakiola.calendula.ui.common.Position
+import de.jeanlucmakiola.calendula.ui.common.pastelize
+import de.jeanlucmakiola.calendula.ui.common.positionOf
+import java.time.LocalDate
 
 /** Sentinel [editorId] meaning "the editor is composing a new calendar". */
 private const val NEW_CALENDAR_ID = Long.MIN_VALUE
 
 /**
  * Calendar manager (reached from Settings). Lists the app's own device-only
- * calendars with create / rename / recolor / delete, and synced calendars
- * read-only with a per-account "manage in the source app" deep-link.
- *
- * Export/import lives in its own Settings entry ([BackupScreen], #69); this
- * screen only points at it. [onBack] pops the destination.
+ * calendars with create / rename / recolor / delete (via a full-screen editor),
+ * and lists synced calendars read-only with a per-account "manage in the source
+ * app" deep-link — the app never touches a synced calendar's server. A
+ * full-screen destination; [onBack] pops it.
  */
 @Composable
 fun CalendarsScreen(
     onBack: () -> Unit,
-    onOpenBackup: () -> Unit,
     viewModel: CalendarsViewModel = hiltViewModel(),
 ) {
     val calendars by viewModel.calendars.collectAsStateWithLifecycle()
-    val deleteLockedIds by viewModel.deleteLockedCalendarIds.collectAsStateWithLifecycle()
     val error by viewModel.error.collectAsStateWithLifecycle()
+    val backupResult by viewModel.backupResult.collectAsStateWithLifecycle()
 
     // null = list; NEW_CALENDAR_ID = create; any other id = edit that calendar.
     // [editorSession] bumps on every open so the editor's field state resets for
@@ -136,9 +113,8 @@ fun CalendarsScreen(
             sessionKey = editorSession,
             isNew = editorId == NEW_CALENDAR_ID,
             initialName = editing?.displayName.orEmpty(),
-            initialColor = editing?.color ?: CalendarColorPalette.all.first(),
+            initialColor = editing?.color ?: CALENDAR_COLOR_PALETTE.first(),
             initialDescription = editing?.description.orEmpty(),
-            deleteLocked = editing != null && editing.id in deleteLockedIds,
             onSave = { name, color, description ->
                 val id = editorId
                 if (id == null || id == NEW_CALENDAR_ID) {
@@ -160,12 +136,12 @@ fun CalendarsScreen(
             synced = calendars.filterNot { it.isLocal },
             error = error,
             onConsumeError = viewModel::consumeError,
-            onOpenBackup = onOpenBackup,
+            backupResult = backupResult,
+            onExportBackup = viewModel::exportBackup,
+            onConsumeBackupResult = viewModel::consumeBackupResult,
             onBack = onBack,
             onAdd = { editorSession++; editorId = NEW_CALENDAR_ID },
             onEdit = { calendar -> editorSession++; editorId = calendar.id },
-            onSetVisible = viewModel::setCalendarVisible,
-            onSetAccountVisible = viewModel::setAccountVisible,
         )
     }
 }
@@ -176,19 +152,15 @@ private fun CalendarsList(
     synced: List<CalendarSource>,
     error: Boolean,
     onConsumeError: () -> Unit,
-    onOpenBackup: () -> Unit,
+    backupResult: BackupResult?,
+    onExportBackup: (android.net.Uri) -> Unit,
+    onConsumeBackupResult: () -> Unit,
     onBack: () -> Unit,
     onAdd: () -> Unit,
     onEdit: (CalendarSource) -> Unit,
-    onSetVisible: (Long, Boolean) -> Unit,
-    onSetAccountVisible: (Collection<Long>, Boolean) -> Unit,
 ) {
     val context = LocalContext.current
     val snackbarHostState = remember { SnackbarHostState() }
-    // Accounts the user has folded shut; empty = all expanded (keeps every
-    // calendar visible by default, the section is collapsible for tidiness).
-    var collapsedAccounts by remember { mutableStateOf(emptySet<AccountKey>()) }
-    var localExpanded by remember { mutableStateOf(true) }
     val writeErrorText = stringResource(R.string.calendars_write_error)
 
     LaunchedEffect(error) {
@@ -198,149 +170,111 @@ private fun CalendarsList(
         }
     }
 
+    // SAF "create document" target for the backup file. The picked Uri is handed
+    // to the VM to stream the .ics into.
+    val createBackup = rememberLauncherForActivityResult(
+        contract = ActivityResultContracts.CreateDocument("text/calendar"),
+    ) { uri -> uri?.let(onExportBackup) }
+
+    val backupFailedText = stringResource(R.string.calendars_backup_failed)
+    LaunchedEffect(backupResult) {
+        when (val r = backupResult) {
+            is BackupResult.Success -> {
+                snackbarHostState.showSnackbar(
+                    context.resources.getQuantityString(
+                        R.plurals.calendars_backup_done, r.eventCount, r.eventCount,
+                    ),
+                )
+                onConsumeBackupResult()
+            }
+            BackupResult.Failure -> {
+                snackbarHostState.showSnackbar(backupFailedText)
+                onConsumeBackupResult()
+            }
+            null -> Unit
+        }
+    }
+
     CollapsingScaffold(
         title = stringResource(R.string.calendars_title),
         onBack = onBack,
         snackbarHost = { SnackbarHost(snackbarHostState) },
-        predictiveBack = true,
     ) {
-        // What the per-calendar / per-account switches below actually do.
-        HintText(stringResource(R.string.calendars_visibility_hint))
-
-        // Local (device-only) calendars — one collapsible group. The header's
-        // "+" adds a calendar; the switch enables/disables them all at once;
-        // tapping a calendar row opens its editor.
-        val localDisabled = local.isNotEmpty() && local.none { it.isVisibleInSystem }
-        CalendarGroup(
-            title = stringResource(R.string.calendars_local_header),
-            expanded = localExpanded,
-            bodyHasRows = local.isNotEmpty(),
-            headerDisabled = localDisabled,
-            leading = { Box(dimIf(localDisabled)) { LeadingAvatar(Icons.Default.PhoneAndroid) } },
-            manageIcon = Icons.Default.Add,
-            manageLabel = stringResource(R.string.calendars_add),
-            onManage = onAdd,
-            onToggleExpand = { localExpanded = !localExpanded },
-            showToggleAll = local.isNotEmpty(),
-            allEnabled = local.all { it.isVisibleInSystem },
-            onToggleAll = { enabled -> onSetAccountVisible(local.map { it.id }, enabled) },
-        ) {
-            if (local.isEmpty()) {
-                HintText(stringResource(R.string.calendars_local_empty))
-            } else {
-                local.forEachIndexed { index, calendar ->
-                    val disabled = !calendar.isVisibleInSystem
-                    GroupedRow(
-                        title = calendar.displayName,
-                        summary = calendarRowSummary(calendar),
-                        position = if (index == local.lastIndex) Position.Bottom else Position.Middle,
-                        container = MaterialTheme.colorScheme.surfaceContainerHighest,
-                        dimmed = disabled,
-                        leading = { CalendarColorChip(calendar.color, dimIf(disabled)) },
-                        trailing = {
-                            EnableSwitch(
-                                calendarName = calendar.displayName,
-                                enabled = !disabled,
-                                onToggle = { enabled -> onSetVisible(calendar.id, enabled) },
-                            )
-                        },
-                        onClick = { onEdit(calendar) },
-                    )
-                }
-            }
+        // Local (device-only) calendars — the calendars the app owns. The
+        // "Add calendar" entry closes the group as its final row.
+        SectionHeader(stringResource(R.string.calendars_local_header))
+        if (local.isEmpty()) {
+            HintText(stringResource(R.string.calendars_local_empty))
+        }
+        val localCount = local.size + 1
+        local.forEachIndexed { index, calendar ->
+            GroupedRow(
+                title = calendar.displayName,
+                summary = calendar.description,
+                position = positionOf(index, localCount),
+                leading = { CalendarColorChip(calendar.color) },
+                trailing = {
+                    Icon(
+                        Icons.Default.Edit,
+                        contentDescription = stringResource(R.string.calendars_edit_title),
+                        tint = MaterialTheme.colorScheme.onSurfaceVariant,
+                        modifier = Modifier.size(20.dp),
+                    )
+                },
+                onClick = { onEdit(calendar) },
+            )
         }
-
-        // Pointer to the Backup entry (#69), so it stays findable from here.
-        Spacer(Modifier.height(16.dp))
         GroupedRow(
-            title = stringResource(R.string.settings_section_backup),
-            summary = stringResource(R.string.settings_backup_subtitle),
-            position = Position.Alone,
-            leading = { LeadingAvatar(Icons.Default.Backup) },
-            trailing = {
-                Icon(
-                    imageVector = Icons.AutoMirrored.Filled.KeyboardArrowRight,
-                    contentDescription = null,
-                    tint = MaterialTheme.colorScheme.onSurfaceVariant,
-                )
-            },
-            onClick = onOpenBackup,
+            title = stringResource(R.string.calendars_add),
+            position = positionOf(local.size, localCount),
+            leading = { AddAvatar() },
+            onClick = onAdd,
         )
 
+        // Backup — local calendars have no sync, so a .ics export is their only
+        // safety net. Offered only when there is something to back up.
+        if (local.isNotEmpty()) {
+            Spacer(Modifier.height(16.dp))
+            SectionHeader(stringResource(R.string.calendars_backup_header))
+            HintText(stringResource(R.string.calendars_backup_hint))
+            GroupedRow(
+                title = stringResource(R.string.calendars_backup_action),
+                position = Position.Alone,
+                leading = { LeadingAvatar(Icons.Default.FileDownload) },
+                onClick = {
+                    runCatching { createBackup.launch("calendula-backup-${LocalDate.now()}.ics") }
+                },
+            )
+        }
+
         Spacer(Modifier.height(16.dp))
 
-        // Synced calendars — read-only, grouped by account. Each account is a
-        // collapsible group whose header opens the source app (icon) and toggles
-        // all of its calendars at once (switch).
+        // Synced calendars — read-only, grouped by account, each with a
+        // per-account "manage in source app" link.
         SectionHeader(stringResource(R.string.calendars_synced_header))
         HintText(stringResource(R.string.calendars_synced_hint))
         synced
-            .groupByAccount()
-            .forEach { group ->
-                val cals = group.calendars
-                val expanded = group.key !in collapsedAccounts
-                val accountType = group.accountType
-                // A non-syncing calendar has no switch, so it neither counts
-                // towards "the whole account is off" nor moves with toggle-all.
-                val switchable = cals.filter { it.hasVisibilitySwitch }
-                val accountDisabled = switchable.isNotEmpty() &&
-                    switchable.none { it.isVisibleInSystem }
-                Spacer(Modifier.height(16.dp))
-                CalendarGroup(
-                    title = accountGroupTitle(group),
-                    expanded = expanded,
-                    bodyHasRows = true,
-                    headerDisabled = accountDisabled,
-                    leading = { Box(dimIf(accountDisabled)) { SourceLogo(accountType) } },
-                    manageIcon = Icons.AutoMirrored.Filled.OpenInNew,
-                    manageLabel = stringResource(R.string.calendars_manage_in_app),
-                    onManage = {
-                        runCatching { context.startActivity(sourceAppIntent(context, accountType)) }
-                    },
-                    onToggleExpand = {
-                        collapsedAccounts = if (expanded) {
-                            collapsedAccounts + group.key
-                        } else {
-                            collapsedAccounts - group.key
-                        }
-                    },
-                    showToggleAll = switchable.isNotEmpty(),
-                    allEnabled = switchable.all { it.isVisibleInSystem },
-                    onToggleAll = { enabled ->
-                        onSetAccountVisible(switchable.map { it.id }, enabled)
-                    },
-                ) {
-                    // Actionable calendars first; non-syncing ones at the
-                    // bottom, dimmed and switchless.
-                    val ordered = cals.orderedForManager()
-                    ordered.forEachIndexed { index, calendar ->
-                        val disabled = !calendar.isVisibleInSystem || calendar.isNotSynced
-                        GroupedRow(
-                            title = calendar.displayName,
-                            summary = calendarRowSummary(calendar),
-                            position = if (index == ordered.lastIndex) Position.Bottom else Position.Middle,
-                            container = MaterialTheme.colorScheme.surfaceContainerHighest,
-                            dimmed = disabled,
-                            leading = { CalendarColorChip(calendar.color, dimIf(disabled)) },
-                            trailing = if (calendar.hasVisibilitySwitch) {
-                                {
-                                    EnableSwitch(
-                                        calendarName = calendar.displayName,
-                                        enabled = calendar.isVisibleInSystem,
-                                        onToggle = { enabled ->
-                                            onSetVisible(calendar.id, enabled)
-                                        },
-                                    )
-                                }
-                            } else {
-                                null
-                            },
-                        )
-                    }
+            .groupBy { it.accountName.ifBlank { it.accountType } }
+            .forEach { (account, cals) ->
+                AccountHeader(account = account, accountType = cals.first().accountType)
+                cals.forEachIndexed { index, calendar ->
+                    GroupedRow(
+                        title = calendar.displayName,
+                        position = positionOf(index, cals.size),
+                        leading = { CalendarColorChip(calendar.color) },
+                    )
                 }
             }
+        Spacer(Modifier.height(8.dp))
+        GroupedRow(
+            title = stringResource(R.string.calendars_add_account),
+            position = Position.Alone,
+            leading = { AddAvatar() },
+            onClick = {
+                runCatching { context.startActivity(Intent(Settings.ACTION_ADD_ACCOUNT)) }
+            },
+        )
     }
-
 }
 
 @OptIn(ExperimentalMaterial3Api::class)
@@ -354,18 +288,17 @@ private fun CalendarEditor(
     onSave: (name: String, color: Int, description: String?) -> Unit,
     onDelete: () -> Unit,
     onClose: () -> Unit,
-    deleteLocked: Boolean = false,
 ) {
     var name by rememberSaveable(sessionKey) { mutableStateOf(initialName) }
     var color by rememberSaveable(sessionKey) { mutableStateOf(initialColor) }
     var description by rememberSaveable(sessionKey) { mutableStateOf(initialDescription) }
     var confirmDelete by remember { mutableStateOf(false) }
     val dark = isSystemInDarkTheme()
-    val soften = LocalSoftenColors.current
+
+    BackHandler(onBack = onClose)
 
     Scaffold(
         modifier = Modifier
-            .predictiveBack(onBack = onClose)
             .fillMaxSize()
             .background(MaterialTheme.colorScheme.surface),
         topBar = {
@@ -388,20 +321,11 @@ private fun CalendarEditor(
                 },
                 actions = {
                     if (!isNew) {
-                        // Disabled rather than hidden while the special-dates
-                        // sync owns this calendar; the card below says why.
-                        IconButton(
-                            onClick = { confirmDelete = true },
-                            enabled = !deleteLocked,
-                        ) {
+                        IconButton(onClick = { confirmDelete = true }) {
                             Icon(
                                 Icons.Default.Delete,
                                 contentDescription = stringResource(R.string.event_detail_delete),
-                                tint = if (deleteLocked) {
-                                    MaterialTheme.colorScheme.onSurface.copy(alpha = 0.38f)
-                                } else {
-                                    MaterialTheme.colorScheme.error
-                                },
+                                tint = MaterialTheme.colorScheme.error,
                             )
                         }
                     }
@@ -430,20 +354,7 @@ private fun CalendarEditor(
                 .padding(horizontal = 16.dp, vertical = 8.dp),
             verticalArrangement = Arrangement.spacedBy(12.dp),
         ) {
-            if (deleteLocked) {
-                EditorCard(
-                    icon = Icons.Default.Info,
-                    iconTint = MaterialTheme.colorScheme.onSurfaceVariant,
-                    iconAtTop = true,
-                ) {
-                    Text(
-                        text = stringResource(R.string.calendars_managed_delete_locked),
-                        style = MaterialTheme.typography.bodyMedium,
-                        color = MaterialTheme.colorScheme.onSurfaceVariant,
-                    )
-                }
-            }
-            EditorCard(icon = Icons.Default.CalendarMonth, iconTint = eventAccent(color, dark, soften)) {
+            EditorCard(icon = Icons.Default.CalendarMonth, iconTint = pastelize(color, dark)) {
                 InlineTextField(
                     value = name,
                     onValueChange = { name = it },
@@ -464,7 +375,7 @@ private fun CalendarEditor(
                 )
                 Spacer(Modifier.height(12.dp))
                 ColorSwatchRow(
-                    colors = CalendarColorPalette.all,
+                    colors = CALENDAR_COLOR_PALETTE,
                     selected = color,
                     onSelect = { color = it },
                     dark = dark,
@@ -514,48 +425,6 @@ private fun CalendarEditor(
     }
 }
 
-/**
- * The row's supporting line: the states that make this calendar behave unlike a
- * plain writable one (#76), then its own description.
- */
-@Composable
-private fun calendarRowSummary(calendar: CalendarSource): String? {
-    val states = calendar.stateLabels().map { label ->
-        stringResource(
-            when (label) {
-                CalendarStateLabel.MANAGED -> R.string.calendars_state_managed
-                CalendarStateLabel.READ_ONLY -> R.string.calendars_state_read_only
-                CalendarStateLabel.NOT_SYNCED -> R.string.calendars_state_not_synced
-            },
-        )
-    }
-    val parts = states + listOfNotNull(calendar.description?.takeIf { it.isNotBlank() })
-    return parts.joinToString(" · ").ifEmpty { null }
-}
-
-/**
- * The per-row on/off control, writing the system's device-local
- * `Calendars.VISIBLE`. Unchecked drops the calendar out of every surface and
- * stops its reminders. Carries its own content description.
- */
-@Composable
-private fun EnableSwitch(
-    calendarName: String,
-    enabled: Boolean,
-    onToggle: (Boolean) -> Unit,
-) {
-    val label = stringResource(R.string.calendars_visibility_a11y, calendarName)
-    Switch(
-        checked = enabled,
-        onCheckedChange = onToggle,
-        modifier = Modifier.semantics { contentDescription = label },
-    )
-}
-
-/** Fade a leading element to the M3 disabled emphasis when [disabled]. */
-private fun dimIf(disabled: Boolean): Modifier =
-    if (disabled) Modifier.alpha(0.38f) else Modifier
-
 /** Tonal field card matching the event editor's design (icon + content). */
 @Composable
 private fun EditorCard(
@@ -587,163 +456,89 @@ private fun EditorCard(
     }
 }
 
-/**
- * One collapsible calendar group rendered as a connected card. The header row is
- * the card's top (tap to expand/collapse): a [leading] source mark (the account
- * app's logo, or a device chip for local), the group [title] and a trailing
- * overflow (⋮) menu holding the account-level actions — enable/disable every
- * calendar at once (when [showToggleAll]) and the manage/add action
- * ([manageIcon] / [manageLabel] → [onManage]). The group's calendars render as
- * the rows below via [body].
- *
- * The header keeps the standard row colour; the calendars it reveals sit one tone
- * darker, so the group reads as a header over nested content. Once [headerDisabled]
- * (every calendar switched off) the header fades to the disabled emphasis so the
- * whole group reads as off — not just via the menu. [bodyHasRows] is false when no
- * calendar rows follow (e.g. an empty local group), so the header stays a
- * standalone card rather than a top edge with nothing beneath it.
- */
 @Composable
-private fun CalendarGroup(
-    title: String,
-    expanded: Boolean,
-    bodyHasRows: Boolean,
-    headerDisabled: Boolean,
-    leading: @Composable () -> Unit,
-    manageIcon: ImageVector,
-    manageLabel: String,
-    onManage: () -> Unit,
-    onToggleExpand: () -> Unit,
-    showToggleAll: Boolean,
-    allEnabled: Boolean,
-    onToggleAll: (Boolean) -> Unit,
-    body: @Composable ColumnScope.() -> Unit,
-) {
-    GroupedRow(
-        title = title,
-        position = if (expanded && bodyHasRows) Position.Top else Position.Alone,
-        dimmed = headerDisabled,
-        leading = leading,
-        trailing = {
-            CalendarGroupMenu(
-                title = title,
-                showToggleAll = showToggleAll,
-                allEnabled = allEnabled,
-                onToggleAll = onToggleAll,
-                manageIcon = manageIcon,
-                manageLabel = manageLabel,
-                onManage = onManage,
-            )
-        },
-        onClick = onToggleExpand,
-    )
-    AnimatedVisibility(
-        visible = expanded,
-        enter = expandEnter(),
-        exit = collapseExit(),
+private fun AccountHeader(account: String, accountType: String) {
+    val context = LocalContext.current
+    Row(
+        modifier = Modifier
+            .fillMaxWidth()
+            .padding(start = 28.dp, end = 16.dp, top = 16.dp, bottom = 4.dp),
+        verticalAlignment = Alignment.CenterVertically,
     ) {
-        Column(content = body)
-    }
-}
-
-/**
- * The account header's overflow (⋮) menu: the two account-level actions that
- * don't fit on one line — "Enable/Disable all" (when [showToggleAll]) and the
- * manage/add action. A rounded, tonal dropdown matching the app's surfaces, with
- * the two actions divided for clear separation.
- */
-@Composable
-private fun CalendarGroupMenu(
-    title: String,
-    showToggleAll: Boolean,
-    allEnabled: Boolean,
-    onToggleAll: (Boolean) -> Unit,
-    manageIcon: ImageVector,
-    manageLabel: String,
-    onManage: () -> Unit,
-) {
-    var open by remember { mutableStateOf(false) }
-    Box {
-        IconButton(onClick = { open = true }) {
-            Icon(
-                Icons.Default.MoreVert,
-                contentDescription = stringResource(R.string.calendars_account_menu_a11y, title),
-            )
-        }
-        DropdownMenu(
-            expanded = open,
-            onDismissRequest = { open = false },
-            shape = RoundedCornerShape(20.dp),
-            // A distinct tone + a lifted shadow so the menu reads as floating
-            // above the cards (which sit at surfaceContainerHigh) rather than
-            // blending into them.
-            containerColor = MaterialTheme.colorScheme.surfaceContainerLowest,
-            tonalElevation = 0.dp,
-            shadowElevation = 6.dp,
-        ) {
-            if (showToggleAll) {
-                DropdownMenuItem(
-                    text = {
-                        Text(
-                            stringResource(
-                                if (allEnabled) R.string.calendars_disable_all
-                                else R.string.calendars_enable_all,
-                            ),
-                        )
-                    },
-                    leadingIcon = {
-                        Icon(
-                            if (allEnabled) Icons.Default.VisibilityOff else Icons.Default.Visibility,
-                            contentDescription = null,
-                        )
-                    },
-                    onClick = {
-                        open = false
-                        onToggleAll(!allEnabled)
-                    },
-                )
-                HorizontalDivider(Modifier.padding(horizontal = 12.dp, vertical = 4.dp))
-            }
-            DropdownMenuItem(
-                text = { Text(manageLabel) },
-                leadingIcon = { Icon(manageIcon, contentDescription = null) },
-                onClick = {
-                    open = false
-                    onManage()
-                },
-            )
+        Text(
+            text = account,
+            style = MaterialTheme.typography.titleSmall,
+            fontWeight = FontWeight.SemiBold,
+            modifier = Modifier.weight(1f),
+        )
+        OutlinedButton(onClick = {
+            runCatching { context.startActivity(sourceAppIntent(context, accountType)) }
+        }) {
+            Icon(Icons.Default.OpenInNew, contentDescription = null, modifier = Modifier.size(16.dp))
+            Spacer(Modifier.width(6.dp))
+            Text(stringResource(R.string.calendars_manage_in_app))
         }
     }
 }
 
+/** Neutral circular chip carrying an arbitrary icon — matches [AddAvatar]'s shape. */
+@Composable
+private fun LeadingAvatar(icon: ImageVector) {
+    Box(
+        modifier = Modifier
+            .size(40.dp)
+            .clip(CircleShape)
+            .background(MaterialTheme.colorScheme.surfaceContainerHighest),
+        contentAlignment = Alignment.Center,
+    ) {
+        Icon(
+            icon,
+            contentDescription = null,
+            tint = MaterialTheme.colorScheme.onSurfaceVariant,
+            modifier = Modifier.size(22.dp),
+        )
+    }
+}
+
+/** Neutral circular chip with a "+" — the leading icon for add-actions. */
+@Composable
+private fun AddAvatar() {
+    Box(
+        modifier = Modifier
+            .size(40.dp)
+            .clip(CircleShape)
+            .background(MaterialTheme.colorScheme.surfaceContainerHighest),
+        contentAlignment = Alignment.Center,
+    ) {
+        Icon(
+            Icons.Default.Add,
+            contentDescription = null,
+            tint = MaterialTheme.colorScheme.onSurfaceVariant,
+            modifier = Modifier.size(22.dp),
+        )
+    }
+}
 
 @Composable
-internal fun SectionHeader(text: String) {
+private fun SectionHeader(text: String) {
     Text(
         text = text,
         style = MaterialTheme.typography.labelLarge,
         color = MaterialTheme.colorScheme.primary,
-        // The cards' own edge, so header and group share a left margin.
-        modifier = Modifier.padding(
-            start = GroupedListInset,
-            end = GroupedListInset,
-            top = 16.dp,
-            bottom = 4.dp,
-        ),
+        modifier = Modifier.padding(start = 24.dp, end = 24.dp, top = 16.dp, bottom = 4.dp),
     )
 }
 
 @Composable
-internal fun HintText(text: String) {
+private fun HintText(text: String) {
     Text(
         text = text,
         style = MaterialTheme.typography.bodySmall,
         color = MaterialTheme.colorScheme.onSurfaceVariant,
-        modifier = Modifier.padding(horizontal = GroupedListInset, vertical = 4.dp),
+        modifier = Modifier.padding(horizontal = 24.dp, vertical = 4.dp),
     )
 }
 
-
 /**
  * Pick the app to open for managing a synced calendar's account. The account's
  * own authenticator package (resolved from [AccountManager], no permission
@@ -768,3 +563,9 @@ private fun sourceAppIntent(context: Context, accountType: String): Intent {
     return Intent(Settings.ACTION_SYNC_SETTINGS)
 }
 
+/** Preferred app for account types whose authenticator isn't the app to open. */
+private fun curatedSourcePackage(accountType: String): String? = when {
+    accountType.equals("com.google", ignoreCase = true) -> "com.google.android.calendar"
+    else -> null
+}
+

app/src/main/java/de/jeanlucmakiola/calendula/ui/calendars/CalendarsViewModel.kt

@@ -1,18 +1,12 @@
 package de.jeanlucmakiola.calendula.ui.calendars
 
-import android.content.Context
-import android.content.Intent
 import android.net.Uri
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
 import dagger.hilt.android.lifecycle.HiltViewModel
-import dagger.hilt.android.qualifiers.ApplicationContext
-import de.jeanlucmakiola.calendula.data.backup.BackupScheduler
 import de.jeanlucmakiola.calendula.data.calendar.CalendarRepository
 import de.jeanlucmakiola.calendula.data.di.IoDispatcher
 import de.jeanlucmakiola.calendula.data.ics.IcsExporter
-import de.jeanlucmakiola.calendula.data.prefs.BackupStatus
-import de.jeanlucmakiola.calendula.data.prefs.SettingsPrefs
 import de.jeanlucmakiola.calendula.domain.CalendarSource
 import de.jeanlucmakiola.calendula.domain.ics.IcsWriter
 import kotlinx.coroutines.CoroutineDispatcher
@@ -21,8 +15,6 @@ import kotlinx.coroutines.flow.SharingStarted
 import kotlinx.coroutines.flow.StateFlow
 import kotlinx.coroutines.flow.asStateFlow
 import kotlinx.coroutines.flow.catch
-import kotlinx.coroutines.flow.combine
-import kotlinx.coroutines.flow.first
 import kotlinx.coroutines.flow.flowOn
 import kotlinx.coroutines.flow.stateIn
 import kotlinx.coroutines.launch
@@ -39,10 +31,8 @@ import javax.inject.Inject
  */
 @HiltViewModel
 class CalendarsViewModel @Inject constructor(
-    @ApplicationContext private val context: Context,
     private val repository: CalendarRepository,
     private val icsExporter: IcsExporter,
-    private val settingsPrefs: SettingsPrefs,
     @IoDispatcher private val io: CoroutineDispatcher,
 ) : ViewModel() {
 
@@ -56,41 +46,6 @@ class CalendarsViewModel @Inject constructor(
                 initialValue = emptyList(),
             )
 
-    /** Automatic-backup settings + last-run status, for the Backup section UI. */
-    val autoBackup: StateFlow<AutoBackupUiState> = combine(
-        settingsPrefs.autoBackupEnabled,
-        settingsPrefs.autoBackupIntervalMinutes,
-        settingsPrefs.autoBackupFolderUri,
-        settingsPrefs.autoBackupStatus,
-    ) { enabled, interval, folder, status ->
-        AutoBackupUiState(enabled, interval, folder, status)
-    }
-        .flowOn(io)
-        .stateIn(
-            scope = viewModelScope,
-            started = SharingStarted.WhileSubscribed(5_000L),
-            initialValue = AutoBackupUiState(),
-        )
-
-    /**
-     * Managed special-dates calendars whose deletion would not stick: while the
-     * feature is on, `SpecialDatesSyncEngine.reconcileCalendars` undoes it on
-     * the next pass. Read off each calendar's durable [CalendarSource.isManaged]
-     * marker rather than the stored ids, which lag a sync pass behind.
-     */
-    val deleteLockedCalendarIds: StateFlow<Set<Long>> = combine(
-        calendars,
-        settingsPrefs.specialDatesEnabled,
-    ) { sources, enabled ->
-        if (!enabled) emptySet() else sources.filter { it.isManaged }.map { it.id }.toSet()
-    }
-        .flowOn(io)
-        .stateIn(
-            scope = viewModelScope,
-            started = SharingStarted.WhileSubscribed(5_000L),
-            initialValue = emptySet(),
-        )
-
     private val _error = MutableStateFlow(false)
     val error: StateFlow<Boolean> = _error.asStateFlow()
 
@@ -106,11 +61,11 @@ class CalendarsViewModel @Inject constructor(
      * document [uri] as one `VCALENDAR`. Result (event count, or failure) lands
      * in [backupResult] for a one-shot message.
      */
-    fun exportBackup(uri: Uri, calendarIds: Set<Long>? = null) {
+    fun exportBackup(uri: Uri) {
         viewModelScope.launch {
             _backupResult.value = try {
                 val count = withContext(io) {
-                    val events = repository.exportEvents(calendarIds)
+                    val events = repository.exportEvents()
                     icsExporter.writeDocument(
                         uri = uri,
                         content = IcsWriter().writeCalendar(events, Clock.System.now()),
@@ -138,68 +93,6 @@ class CalendarsViewModel @Inject constructor(
         repository.deleteCalendar(id)
     }
 
-    /**
-     * Switch a calendar on or off — the app's one visibility model, writing the
-     * system's `Calendars.VISIBLE`. A reminder that came due while the calendar
-     * was off stays gone when it is switched back on: the watermark has already
-     * moved past it (#75).
-     */
-    fun setCalendarVisible(id: Long, visible: Boolean) = write {
-        repository.setCalendarsVisible(listOf(id), visible)
-    }
-
-    /**
-     * Switch every calendar of one account on or off. Each row is written on its
-     * own, in one coroutine so the writes can't race.
-     */
-    fun setAccountVisible(ids: Collection<Long>, visible: Boolean) = write {
-        repository.setCalendarsVisible(ids, visible)
-    }
-
-    // --- Automatic backup (issue #8) ------------------------------------
-
-    fun setAutoBackupEnabled(enabled: Boolean) {
-        viewModelScope.launch {
-            settingsPrefs.setAutoBackupEnabled(enabled)
-            reschedule()
-            // Give immediate feedback when turning it on with a folder already set.
-            if (enabled && settingsPrefs.autoBackupFolderUri.first() != null) {
-                BackupScheduler.runNow(context)
-            }
-        }
-    }
-
-    fun setAutoBackupIntervalMinutes(minutes: Long) {
-        viewModelScope.launch {
-            settingsPrefs.setAutoBackupIntervalMinutes(minutes)
-            reschedule()
-        }
-    }
-
-    /** Persist the chosen destination folder (taking a durable write grant) and run once. */
-    fun setAutoBackupFolder(uri: Uri) {
-        viewModelScope.launch {
-            runCatching {
-                context.contentResolver.takePersistableUriPermission(
-                    uri,
-                    Intent.FLAG_GRANT_READ_URI_PERMISSION or Intent.FLAG_GRANT_WRITE_URI_PERMISSION,
-                )
-            }
-            settingsPrefs.setAutoBackupFolderUri(uri.toString())
-            reschedule()
-            if (settingsPrefs.autoBackupEnabled.first()) BackupScheduler.runNow(context)
-        }
-    }
-
-    private suspend fun reschedule() {
-        BackupScheduler.apply(
-            context = context,
-            enabled = settingsPrefs.autoBackupEnabled.first(),
-            intervalMinutes = settingsPrefs.autoBackupIntervalMinutes.first(),
-            hasFolder = settingsPrefs.autoBackupFolderUri.first() != null,
-        )
-    }
-
     private inline fun write(crossinline block: suspend () -> Unit) {
         viewModelScope.launch {
             try {
@@ -213,14 +106,6 @@ class CalendarsViewModel @Inject constructor(
     }
 }
 
-/** Automatic-backup settings + last-run status for the Backup section. */
-data class AutoBackupUiState(
-    val enabled: Boolean = false,
-    val intervalMinutes: Long = SettingsPrefs.DEFAULT_BACKUP_INTERVAL,
-    val folderUri: String? = null,
-    val status: BackupStatus = BackupStatus(lastRun = 0L, lastSuccess = true, consecutiveFailures = 0),
-)
-
 /** Outcome of a whole-calendar backup, surfaced once to the screen. */
 sealed interface BackupResult {
     data class Success(val eventCount: Int) : BackupResult

app/src/main/java/de/jeanlucmakiola/calendula/ui/common/AccountGroups.kt

@@ -1,80 +0,0 @@
-package de.jeanlucmakiola.calendula.ui.common
-
-import androidx.compose.runtime.Composable
-import androidx.compose.runtime.remember
-import androidx.compose.ui.platform.LocalContext
-import androidx.compose.ui.res.stringResource
-import de.jeanlucmakiola.calendula.R
-import de.jeanlucmakiola.calendula.domain.CalendarSource
-
-/**
- * One account's calendars, as every surface that lists calendars by account
- * shows them. An account is identified by name **and** type (#77): a Google and
- * a DAVx5 account can share an address and still be two separate accounts.
- */
-data class CalendarAccountGroup(
-    /** Stable identity: what makes two calendars belong to the same account. */
-    val key: AccountKey,
-    /** The account's own name, as shown when it is unambiguous. */
-    val label: String,
-    /** True when another group shows the same [label] under a different type. */
-    val ambiguous: Boolean,
-    val calendars: List<CalendarSource>,
-) {
-    val accountType: String get() = key.type
-}
-
-/** The pair a group is keyed on. */
-data class AccountKey(val name: String, val type: String)
-
-/**
- * Group [calendars] under their owning account, preserving the provider's order
- * within each group and ordering groups by first appearance.
- *
- * The label falls back through name → type → the first calendar's own name, so
- * a calendar with no account still lands somewhere sensible.
- */
-fun List<CalendarSource>.groupByAccount(): List<CalendarAccountGroup> {
-    val grouped = groupBy { AccountKey(it.accountName, it.accountType) }
-    val labels = grouped.mapValues { (key, cals) ->
-        key.name.ifBlank { key.type }.ifBlank { cals.first().displayName }
-    }
-    val shared = labels.values.groupingBy { it }.eachCount()
-    return grouped.map { (key, cals) ->
-        val label = labels.getValue(key)
-        CalendarAccountGroup(
-            key = key,
-            label = label,
-            ambiguous = shared.getValue(label) > 1,
-            calendars = cals,
-        )
-    }
-}
-
-/**
- * What to write above a group: its account name, qualified with the app the
- * account comes from when another account shares the name (#77).
- */
-@Composable
-fun accountGroupTitle(group: CalendarAccountGroup): String =
-    if (!group.ambiguous) {
-        group.label
-    } else {
-        stringResource(R.string.calendars_account_from_source, group.label, sourceAppName(group.accountType))
-    }
-
-/**
- * The human name of the app backing [accountType], falling back to the raw
- * account type when no installed app resolves for it.
- */
-@Composable
-fun sourceAppName(accountType: String): String {
-    val context = LocalContext.current
-    return remember(accountType) {
-        val pm = context.packageManager
-        val packages = sourceAppPackages(context, accountType)
-        packages.firstNotNullOfOrNull { pkg ->
-            runCatching { pm.getApplicationLabel(pm.getApplicationInfo(pkg, 0)).toString() }.getOrNull()
-        } ?: accountType
-    }
-}

app/src/main/java/de/jeanlucmakiola/calendula/ui/common/CalendarColors.kt

@@ -13,18 +13,31 @@ import androidx.compose.runtime.Composable
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.draw.clip
+import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.unit.dp
 
+/**
+ * Soften a raw calendar color toward a pastel that fits the active theme.
+ *  - Keeps the hue (so users still recognise their calendars)
+ *  - Caps saturation so harsh provider colors stop screaming
+ *  - Pins value/brightness to a band that reads on both light and dark surfaces
+ */
+fun pastelize(rawArgb: Int, dark: Boolean): Color {
+    val hsv = FloatArray(3)
+    android.graphics.Color.colorToHSV(rawArgb, hsv)
+    hsv[1] = (hsv[1] * 0.6f).coerceIn(0.25f, 0.65f)
+    hsv[2] = if (dark) 0.82f else 0.72f
+    return Color(android.graphics.Color.HSVToColor(hsv))
+}
+
 /**
  * Leading avatar for a calendar: a neutral chip holding a calendar glyph tinted
- * in the calendar's colour — softened to a pastel, or raw when the softener is
- * off (issue #36). Shared by the calendar manager and the visibility filter so
- * they read identically.
+ * in the calendar's (pastelised) colour. Shared by the calendar manager and the
+ * visibility filter so they read identically.
  */
 @Composable
 fun CalendarColorChip(color: Int, modifier: Modifier = Modifier) {
     val dark = isSystemInDarkTheme()
-    val soften = LocalSoftenColors.current
     Box(
         modifier = modifier
             .size(40.dp)
@@ -35,7 +48,7 @@ fun CalendarColorChip(color: Int, modifier: Modifier = Modifier) {
         Icon(
             Icons.Filled.CalendarMonth,
             contentDescription = null,
-            tint = eventAccent(color, dark, soften),
+            tint = pastelize(color, dark),
             modifier = Modifier.size(22.dp),
         )
     }

app/src/main/java/de/jeanlucmakiola/calendula/ui/common/CalendarDrawer.kt

@@ -1,6 +1,5 @@
 package de.jeanlucmakiola.calendula.ui.common
 
-import androidx.activity.compose.BackHandler
 import androidx.compose.foundation.Image
 import androidx.compose.foundation.background
 import androidx.compose.foundation.layout.Box
@@ -20,7 +19,6 @@ import androidx.compose.foundation.verticalScroll
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.filled.DateRange
 import androidx.compose.material.icons.filled.Settings
-import androidx.compose.material3.DrawerState
 import androidx.compose.material3.Icon
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.ModalDrawerSheet
@@ -29,23 +27,16 @@ import androidx.compose.runtime.Composable
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
-import androidx.compose.runtime.rememberCoroutineScope
 import androidx.compose.runtime.setValue
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.draw.clip
-import androidx.compose.ui.graphics.vector.ImageVector
 import androidx.compose.ui.res.colorResource
 import androidx.compose.ui.res.painterResource
 import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.unit.dp
 import de.jeanlucmakiola.calendula.R
 import de.jeanlucmakiola.calendula.ui.filter.CalendarFilterList
-import de.jeanlucmakiola.floret.components.GroupedListInset
-import de.jeanlucmakiola.floret.components.GroupedRow
-import de.jeanlucmakiola.floret.components.Position
-import de.jeanlucmakiola.floret.components.positionOf
-import kotlinx.coroutines.launch
 import kotlinx.datetime.LocalDate
 
 /**
@@ -56,8 +47,7 @@ import kotlinx.datetime.LocalDate
  * a jump-to-date action, the per-calendar visibility filter (M3) inline, and a
  * pinned Settings row. The "View" section mirrors the top-bar switcher pill —
  * tapping a view here selects it (and closes the drawer) rather than cycling.
- * The host screen owns the drawer state; the sheet reads it only to dismiss
- * itself on back.
+ * The host screen owns the drawer state.
  *
  * [currentDate] seeds the jump-to-date picker (the visible day/week-start/month
  * anchor); [onJumpToDate] navigates the active view to the chosen day.
@@ -66,17 +56,11 @@ import kotlinx.datetime.LocalDate
 fun CalendarDrawer(
     currentView: CalendarView,
     currentDate: LocalDate,
-    drawerState: DrawerState,
     onSelectView: (CalendarView) -> Unit,
     onJumpToDate: (LocalDate) -> Unit,
     onSettings: () -> Unit,
-    viewOrder: List<CalendarView> = IMPLEMENTED_VIEWS,
 ) {
     var showDatePicker by remember { mutableStateOf(false) }
-    val scope = rememberCoroutineScope()
-
-    // Registered in the sheet so it takes precedence over the host's back handler.
-    BackHandler(enabled = drawerState.isOpen) { scope.launch { drawerState.close() } }
 
     ModalDrawerSheet {
         // The whole sidebar scrolls as one — header, views, the calendar filter
@@ -89,13 +73,13 @@ fun CalendarDrawer(
             DrawerHeader()
 
             DrawerSectionHeader(stringResource(R.string.view_section))
-            viewOrder.forEachIndexed { index, view ->
+            IMPLEMENTED_VIEWS.forEachIndexed { index, view ->
                 GroupedRow(
                     title = stringResource(view.labelRes),
-                    position = positionOf(index, viewOrder.size),
+                    position = positionOf(index, IMPLEMENTED_VIEWS.size),
                     selected = view == currentView,
                     minHeight = 56.dp,
-                    leading = { DrawerLeadingIcon(view.icon) },
+                    leading = { Icon(view.icon, contentDescription = null) },
                     onClick = { onSelectView(view) },
                 )
             }
@@ -105,7 +89,7 @@ fun CalendarDrawer(
                 title = stringResource(R.string.drawer_jump_to_date),
                 position = Position.Alone,
                 minHeight = 56.dp,
-                leading = { DrawerLeadingIcon(Icons.Filled.DateRange) },
+                leading = { Icon(Icons.Filled.DateRange, contentDescription = null) },
                 onClick = { showDatePicker = true },
             )
 
@@ -119,7 +103,7 @@ fun CalendarDrawer(
                 title = stringResource(R.string.month_action_settings),
                 position = Position.Alone,
                 minHeight = 56.dp,
-                leading = { DrawerLeadingIcon(Icons.Filled.Settings) },
+                leading = { Icon(Icons.Filled.Settings, contentDescription = null) },
                 onClick = onSettings,
             )
             Spacer(Modifier.height(8.dp))
@@ -138,27 +122,13 @@ fun CalendarDrawer(
     }
 }
 
-/** Leading slot for the drawer's plain icons: the same 40.dp footprint
- *  [CalendarColorChip] takes, so every leading glyph shares one vertical axis. */
-@Composable
-private fun DrawerLeadingIcon(icon: ImageVector) {
-    Box(Modifier.size(40.dp), contentAlignment = Alignment.Center) {
-        Icon(icon, contentDescription = null)
-    }
-}
-
 /** Branded header: the app-icon chip beside the app name. */
 @Composable
 private fun DrawerHeader() {
     Row(
         modifier = Modifier
             .fillMaxWidth()
-            .padding(
-                start = GroupedListInset,
-                end = GroupedListInset,
-                top = 24.dp,
-                bottom = 16.dp,
-            ),
+            .padding(start = 28.dp, end = 28.dp, top = 24.dp, bottom = 16.dp),
         verticalAlignment = Alignment.CenterVertically,
     ) {
         Box(
@@ -190,11 +160,6 @@ private fun DrawerSectionHeader(text: String) {
         text = text,
         style = MaterialTheme.typography.titleSmall,
         color = MaterialTheme.colorScheme.primary,
-        modifier = Modifier.padding(
-            start = GroupedListInset,
-            end = GroupedListInset,
-            top = 16.dp,
-            bottom = 8.dp,
-        ),
+        modifier = Modifier.padding(start = 28.dp, end = 28.dp, top = 16.dp, bottom = 8.dp),
     )
 }

app/src/main/java/de/jeanlucmakiola/calendula/ui/common/CalendarPickerGroups.kt

@@ -1,200 +0,0 @@
-package de.jeanlucmakiola.calendula.ui.common
-
-import android.accounts.AccountManager
-import android.content.Context
-import androidx.compose.foundation.Image
-import androidx.compose.foundation.background
-import androidx.compose.foundation.layout.Box
-import androidx.compose.foundation.layout.ColumnScope
-import androidx.compose.foundation.layout.Spacer
-import androidx.compose.foundation.layout.height
-import androidx.compose.foundation.layout.size
-import androidx.compose.foundation.shape.CircleShape
-import androidx.compose.material.icons.Icons
-import androidx.compose.material.icons.automirrored.filled.KeyboardArrowRight
-import androidx.compose.material.icons.filled.Cloud
-import androidx.compose.material.icons.filled.PhoneAndroid
-import androidx.compose.material.icons.filled.VisibilityOff
-import androidx.compose.material3.Icon
-import androidx.compose.material3.MaterialTheme
-import androidx.compose.runtime.Composable
-import androidx.compose.runtime.remember
-import androidx.compose.ui.Alignment
-import androidx.compose.ui.Modifier
-import androidx.compose.ui.draw.clip
-import androidx.compose.ui.graphics.ImageBitmap
-import androidx.compose.ui.graphics.asImageBitmap
-import androidx.compose.ui.graphics.vector.ImageVector
-import androidx.compose.ui.layout.ContentScale
-import androidx.compose.ui.platform.LocalContext
-import androidx.compose.ui.res.stringResource
-import androidx.compose.ui.unit.dp
-import androidx.core.graphics.drawable.toBitmap
-import de.jeanlucmakiola.calendula.R
-import de.jeanlucmakiola.calendula.domain.CalendarSource
-import de.jeanlucmakiola.floret.components.GroupedRow
-import de.jeanlucmakiola.floret.components.Position
-import de.jeanlucmakiola.floret.components.SelectedCheck
-
-/**
- * The app's single "which calendar" selection list, shared by the event editor
- * and the .ics import screen. Renders the same grouped-card system as the
- * calendar-manager screen: a category header per source — the device chip for
- * the app's own calendars, the owning app's launcher icon for each synced
- * account — with the calendars beneath it as a connected card, a colour chip on
- * each and a check on the selected one. Emits into the caller's [ColumnScope]
- * (a scrolling column), so the caller owns the surrounding chrome.
- *
- * The list holds event *targets* only, so a switched-off, read-only or managed
- * calendar is absent (#76). [onManageCalendars], when given, adds the footer row
- * naming the possible reasons and opening the calendar manager.
- */
-@Composable
-fun ColumnScope.CalendarPickerGroups(
-    calendars: List<CalendarSource>,
-    selectedId: Long?,
-    onSelect: (Long) -> Unit,
-    onManageCalendars: (() -> Unit)? = null,
-) {
-    val local = remember(calendars) { calendars.filter { it.isLocal } }
-    val syncedGroups = remember(calendars) {
-        calendars.filterNot { it.isLocal }.groupByAccount()
-    }
-
-    if (local.isNotEmpty()) {
-        CalendarPickerGroup(
-            title = stringResource(R.string.calendars_local_header),
-            leading = { LeadingAvatar(Icons.Default.PhoneAndroid) },
-            calendars = local,
-            selectedId = selectedId,
-            onSelect = onSelect,
-        )
-    }
-    syncedGroups.forEachIndexed { index, group ->
-        if (local.isNotEmpty() || index > 0) Spacer(Modifier.height(16.dp))
-        CalendarPickerGroup(
-            title = accountGroupTitle(group),
-            leading = { SourceLogo(group.accountType) },
-            calendars = group.calendars,
-            selectedId = selectedId,
-            onSelect = onSelect,
-        )
-    }
-    if (onManageCalendars != null) {
-        Spacer(Modifier.height(16.dp))
-        GroupedRow(
-            title = stringResource(R.string.calendar_picker_missing_title),
-            summary = stringResource(R.string.calendar_picker_missing_summary),
-            position = Position.Alone,
-            leading = { LeadingAvatar(Icons.Default.VisibilityOff) },
-            trailing = {
-                Icon(
-                    Icons.AutoMirrored.Filled.KeyboardArrowRight,
-                    contentDescription = null,
-                    tint = MaterialTheme.colorScheme.onSurfaceVariant,
-                )
-            },
-            onClick = onManageCalendars,
-        )
-    }
-}
-
-/** One account's category header (avatar + name) atop its selectable calendars. */
-@Composable
-private fun CalendarPickerGroup(
-    title: String,
-    leading: @Composable () -> Unit,
-    calendars: List<CalendarSource>,
-    selectedId: Long?,
-    onSelect: (Long) -> Unit,
-) {
-    GroupedRow(
-        title = title,
-        position = Position.Top,
-        leading = leading,
-    )
-    calendars.forEachIndexed { index, calendar ->
-        val isSelected = calendar.id == selectedId
-        GroupedRow(
-            title = calendar.displayName,
-            position = if (index == calendars.lastIndex) Position.Bottom else Position.Middle,
-            selected = isSelected,
-            leading = { CalendarColorChip(calendar.color) },
-            trailing = if (isSelected) {
-                { SelectedCheck() }
-            } else {
-                null
-            },
-            onClick = { onSelect(calendar.id) },
-        )
-    }
-}
-
-/**
- * The source app's launcher icon (Google Calendar, DAVx5, Nextcloud, …) as a
- * round 40dp chip, so each synced account is recognisable at a glance. We load
- * whatever app owns the account from [android.content.pm.PackageManager] rather
- * than bundling brand logos — always accurate, nothing to license. Falls back to
- * a neutral cloud chip when no installed app resolves for the account.
- */
-@Composable
-fun SourceLogo(accountType: String) {
-    val context = LocalContext.current
-    val logo = remember(accountType) { sourceAppLogo(context, accountType) }
-    if (logo != null) {
-        Image(
-            bitmap = logo,
-            contentDescription = null,
-            contentScale = ContentScale.Crop,
-            modifier = Modifier
-                .size(40.dp)
-                .clip(CircleShape),
-        )
-    } else {
-        LeadingAvatar(Icons.Default.Cloud)
-    }
-}
-
-/** Neutral circular chip carrying an arbitrary icon (e.g. the local-device mark). */
-@Composable
-fun LeadingAvatar(icon: ImageVector) {
-    Box(
-        modifier = Modifier
-            .size(40.dp)
-            .clip(CircleShape)
-            .background(MaterialTheme.colorScheme.surfaceContainerHighest),
-        contentAlignment = Alignment.Center,
-    ) {
-        Icon(
-            icon,
-            contentDescription = null,
-            tint = MaterialTheme.colorScheme.onSurfaceVariant,
-            modifier = Modifier.size(22.dp),
-        )
-    }
-}
-
-/** The launcher icon of the app backing [accountType], preferring the human-facing app. */
-private fun sourceAppLogo(context: Context, accountType: String): ImageBitmap? {
-    val pm = context.packageManager
-    for (pkg in sourceAppPackages(context, accountType)) {
-        val bitmap = runCatching { pm.getApplicationIcon(pkg).toBitmap() }.getOrNull()
-        if (bitmap != null) return bitmap.asImageBitmap()
-    }
-    return null
-}
-
-/** Apps that could stand for [accountType], best candidate first. */
-internal fun sourceAppPackages(context: Context, accountType: String): List<String> = buildList {
-    curatedSourcePackage(accountType)?.let { add(it) }
-    AccountManager.get(context).authenticatorTypes
-        .firstOrNull { it.type.equals(accountType, ignoreCase = true) }
-        ?.packageName
-        ?.let { add(it) }
-}
-
-/** Preferred app for account types whose authenticator isn't the app to open. */
-internal fun curatedSourcePackage(accountType: String): String? = when {
-    accountType.equals("com.google", ignoreCase = true) -> "com.google.android.calendar"
-    else -> null
-}