reminders + locale: draw prefs/reminders and language plumbing from floret-kit

Consume two newly extracted floret-kit modules and drop the in-app copies:

- core-reminders: ReminderUnit / decomposeReminderMinutes, the ReminderOverride
  model and the override codec. SettingsPrefs keeps its own DataStore wiring and
  Agendula's ':' codec dialect; ReminderFormatting/ReminderLeadPicker keep the
  app's R.string labels and presets.
- core-locale: AppLanguage. Deleted the app copy; SettingsScreen now passes
  R.xml.locales_config to supportedTags().

Bumps the floret-kit submodule to include both modules.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

app/build.gradle.kts

@@ -121,6 +121,8 @@ dependencies {
     implementation(libs.kotlinx.datetime)
     implementation(libs.kotlinx.coroutines.core)
     implementation("de.jeanlucmakiola.floret:core-time")
+    implementation("de.jeanlucmakiola.floret:core-reminders")
+    implementation("de.jeanlucmakiola.floret:core-locale")
     implementation("de.jeanlucmakiola.floret:core-crash")
     implementation("de.jeanlucmakiola.floret:identity")
     implementation("de.jeanlucmakiola.floret:components")

app/src/main/java/de/jeanlucmakiola/agendula/data/prefs/SettingsPrefs.kt

@@ -9,6 +9,10 @@ import androidx.datastore.preferences.core.longPreferencesKey
 import androidx.datastore.preferences.core.stringPreferencesKey
 import androidx.datastore.preferences.core.stringSetPreferencesKey
 import de.jeanlucmakiola.agendula.domain.TaskFormField
+import de.jeanlucmakiola.floret.reminders.ReminderOverride
+import de.jeanlucmakiola.floret.reminders.ReminderOverrideCodec
+import de.jeanlucmakiola.floret.reminders.applyReminderOverride
+import de.jeanlucmakiola.floret.reminders.reminderLeadFor
 import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.flow.map
 import javax.inject.Inject
@@ -16,16 +20,6 @@ import javax.inject.Singleton
 
 enum class ThemeMode { SYSTEM, LIGHT, DARK }
 
-/** A list's override of the default reminder lead time (mirrors Calendula's per-calendar override). */
-sealed interface ListReminderOverride {
-    /** No override — the list uses the global default. */
-    data object Inherit : ListReminderOverride
-    /** Explicit "no reminder" for this list, regardless of the global default. */
-    data object None : ListReminderOverride
-    /** A specific lead time in minutes before due. */
-    data class Minutes(val minutes: Int) : ListReminderOverride
-}
-
 data class Settings(
     val themeMode: ThemeMode = ThemeMode.SYSTEM,
     val dynamicColor: Boolean = true,
@@ -47,11 +41,7 @@ data class Settings(
 ) {
     /** The lead time for a task in [listId]: its override if set, else the global default. */
     fun reminderLeadFor(listId: Long): Int? =
-        if (perListReminderOverride.containsKey(listId)) {
-            perListReminderOverride[listId] // null = explicitly no reminder
-        } else {
-            reminderLeadMinutes
-        }
+        perListReminderOverride.reminderLeadFor(listId, reminderLeadMinutes)
 }
 
 /** App preferences, backed by DataStore. Mirrors Calendula's prefs shape. */
@@ -68,7 +58,7 @@ class SettingsPrefs @Inject constructor(
             reminderLeadMinutes = p[REMINDER_LEAD] ?: 0,
             remindersEnabled = p[REMINDERS_ENABLED] ?: true,
             showAddSubtaskRow = p[SHOW_ADD_SUBTASK_ROW] ?: true,
-            perListReminderOverride = parseReminderOverrides(p[LIST_REMINDER_OVERRIDE]),
+            perListReminderOverride = reminderCodec.parse(p[LIST_REMINDER_OVERRIDE]),
             defaultEditFields = p[DEFAULT_EDIT_FIELDS].orEmpty()
                 .mapNotNull { name -> runCatching { TaskFormField.valueOf(name) }.getOrNull() }
                 .toSet(),
@@ -92,15 +82,11 @@ class SettingsPrefs @Inject constructor(
 
     suspend fun setShowAddSubtaskRow(show: Boolean) = dataStore.edit { it[SHOW_ADD_SUBTASK_ROW] = show }
 
-    /** Set (or clear, via [ListReminderOverride.Inherit]) a list's reminder override. */
-    suspend fun setListReminderOverride(listId: Long, override: ListReminderOverride) = dataStore.edit { p ->
-        val current = parseReminderOverrides(p[LIST_REMINDER_OVERRIDE]).toMutableMap()
-        when (override) {
-            ListReminderOverride.Inherit -> current.remove(listId)
-            ListReminderOverride.None -> current[listId] = null
-            is ListReminderOverride.Minutes -> current[listId] = override.minutes
-        }
-        p[LIST_REMINDER_OVERRIDE] = serializeReminderOverrides(current)
+    /** Set (or clear, via [ReminderOverride.Inherit]) a list's reminder override. */
+    suspend fun setListReminderOverride(listId: Long, override: ReminderOverride) = dataStore.edit { p ->
+        val current = reminderCodec.parse(p[LIST_REMINDER_OVERRIDE]).toMutableMap()
+        current.applyReminderOverride(listId, override)
+        p[LIST_REMINDER_OVERRIDE] = reminderCodec.serialize(current)
     }
 
     suspend fun setDefaultEditFields(fields: Set<TaskFormField>) = dataStore.edit {
@@ -120,20 +106,9 @@ class SettingsPrefs @Inject constructor(
     }
 }
 
-private const val OVERRIDE_ENTRY_SEP = ";"
-private const val OVERRIDE_KV_SEP = ":"
-private const val OVERRIDE_NONE = "none"
-
-/** Decode "id:minutes;id:none;…" into a map (value null = explicit no-reminder). */
-private fun parseReminderOverrides(stored: String?): Map<Long, Int?> {
-    if (stored.isNullOrBlank()) return emptyMap()
-    return stored.split(OVERRIDE_ENTRY_SEP).mapNotNull { entry ->
-        val parts = entry.split(OVERRIDE_KV_SEP).takeIf { it.size == 2 } ?: return@mapNotNull null
-        val id = parts[0].toLongOrNull() ?: return@mapNotNull null
-        val value = if (parts[1] == OVERRIDE_NONE) null else parts[1].toIntOrNull() ?: return@mapNotNull null
-        id to value
-    }.toMap()
-}
-
-private fun serializeReminderOverrides(map: Map<Long, Int?>): String =
-    map.entries.joinToString(OVERRIDE_ENTRY_SEP) { (id, minutes) -> "$id$OVERRIDE_KV_SEP${minutes ?: OVERRIDE_NONE}" }
+/**
+ * Agendula's stored dialect for the per-list override map: `id:minutes` entries
+ * joined by `;` (the family default). Fixed at release — don't change without a
+ * data migration.
+ */
+private val reminderCodec = ReminderOverrideCodec.DEFAULT

app/src/main/java/de/jeanlucmakiola/agendula/ui/common/ReminderFormatting.kt

@@ -5,18 +5,11 @@ import androidx.compose.runtime.Composable
 import androidx.compose.ui.res.pluralStringResource
 import androidx.compose.ui.res.stringResource
 import de.jeanlucmakiola.agendula.R
+import de.jeanlucmakiola.floret.reminders.ReminderUnit
 
 /** Common reminder lead times offered as quick picks in the reminder pickers. */
 val REMINDER_PRESETS = listOf(0, 5, 10, 30, 60, 1_440)
 
-/** The unit of a custom reminder lead time; [minutesFactor] converts to minutes. */
-enum class ReminderUnit(val minutesFactor: Int) {
-    Minutes(1),
-    Hours(60),
-    Days(1_440),
-    Weeks(10_080),
-}
-
 @StringRes
 fun reminderUnitLabel(unit: ReminderUnit): Int = when (unit) {
     ReminderUnit.Minutes -> R.string.reminder_unit_minutes

app/src/main/java/de/jeanlucmakiola/agendula/ui/common/ReminderLeadPicker.kt

@@ -5,6 +5,9 @@ import de.jeanlucmakiola.floret.components.Position
 import de.jeanlucmakiola.floret.components.positionOf
 import de.jeanlucmakiola.floret.components.InlineTextField
 import de.jeanlucmakiola.floret.components.GroupedRow
+import de.jeanlucmakiola.floret.reminders.ReminderOverride
+import de.jeanlucmakiola.floret.reminders.ReminderUnit
+import de.jeanlucmakiola.floret.reminders.decomposeReminderMinutes
 import androidx.compose.animation.AnimatedVisibility
 import androidx.compose.animation.expandVertically
 import androidx.compose.animation.fadeIn
@@ -36,37 +39,36 @@ import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.text.input.KeyboardType
 import androidx.compose.ui.unit.dp
 import de.jeanlucmakiola.agendula.R
-import de.jeanlucmakiola.agendula.data.prefs.ListReminderOverride
 
 /**
  * Reminder lead-time picker, full-screen: the grouped list of preset lead times
  * plus a "Custom" row that expands an inline amount field + unit selector.
  * [allowInherit] adds a "Use default" row (per-list overrides); [allowNone] adds
- * a "None" row. Returns the choice as a [ListReminderOverride]. Ported from
+ * a "None" row. Returns the choice as a [ReminderOverride]. Ported from
  * Calendula's ReminderDefaultPicker.
  */
 @Composable
 fun ReminderLeadPicker(
     title: String,
-    selected: ListReminderOverride,
+    selected: ReminderOverride,
     allowInherit: Boolean,
     allowNone: Boolean,
-    onSelect: (ListReminderOverride) -> Unit,
+    onSelect: (ReminderOverride) -> Unit,
     onDismiss: () -> Unit,
     presets: List<Int> = REMINDER_PRESETS,
 ) {
-    val selectedMinutes = (selected as? ListReminderOverride.Minutes)?.minutes
+    val selectedMinutes = (selected as? ReminderOverride.Minutes)?.minutes
     val customSelected = selectedMinutes != null && selectedMinutes !in presets
-    val seed = decomposeReminder(selectedMinutes?.takeIf { customSelected })
+    val seed = decomposeReminderMinutes(selectedMinutes?.takeIf { customSelected })
 
     var customExpanded by rememberSaveable { mutableStateOf(false) }
-    var amountText by rememberSaveable { mutableStateOf(seed.first) }
-    var unit by rememberSaveable { mutableStateOf(seed.second) }
+    var amountText by rememberSaveable { mutableStateOf(seed.amount?.toString() ?: "") }
+    var unit by rememberSaveable { mutableStateOf(seed.unit) }
 
     val options = buildList {
-        if (allowInherit) add(ListReminderOverride.Inherit)
-        if (allowNone) add(ListReminderOverride.None)
-        presets.forEach { add(ListReminderOverride.Minutes(it)) }
+        if (allowInherit) add(ReminderOverride.Inherit)
+        if (allowNone) add(ReminderOverride.None)
+        presets.forEach { add(ReminderOverride.Minutes(it)) }
     }
     val rowCount = options.size + 1 // + the custom row
 
@@ -106,7 +108,7 @@ fun ReminderLeadPicker(
                 unit = unit,
                 onUnitChange = { unit = it },
                 onConfirm = { minutes ->
-                    onSelect(ListReminderOverride.Minutes(minutes))
+                    onSelect(ReminderOverride.Minutes(minutes))
                     onDismiss()
                 },
             )
@@ -178,17 +180,8 @@ private fun CustomReminderEditor(
 }
 
 @Composable
-private fun reminderOverrideLabel(override: ListReminderOverride): String = when (override) {
-    ListReminderOverride.Inherit -> stringResource(R.string.reminder_use_default)
-    ListReminderOverride.None -> stringResource(R.string.reminder_none)
-    is ListReminderOverride.Minutes -> reminderLeadTimeLabel(override.minutes)
-}
-
-/** Seed the custom editor: the largest exact unit for [minutes] (null → empty). */
-private fun decomposeReminder(minutes: Int?): Pair<String, ReminderUnit> = when {
-    minutes == null || minutes <= 0 -> "" to ReminderUnit.Minutes
-    minutes % 10_080 == 0 -> (minutes / 10_080).toString() to ReminderUnit.Weeks
-    minutes % 1_440 == 0 -> (minutes / 1_440).toString() to ReminderUnit.Days
-    minutes % 60 == 0 -> (minutes / 60).toString() to ReminderUnit.Hours
-    else -> minutes.toString() to ReminderUnit.Minutes
+private fun reminderOverrideLabel(override: ReminderOverride): String = when (override) {
+    ReminderOverride.Inherit -> stringResource(R.string.reminder_use_default)
+    ReminderOverride.None -> stringResource(R.string.reminder_none)
+    is ReminderOverride.Minutes -> reminderLeadTimeLabel(override.minutes)
 }

app/src/main/java/de/jeanlucmakiola/agendula/ui/settings/AppLanguage.kt

@@ -1,78 +0,0 @@
-package de.jeanlucmakiola.agendula.ui.settings
-
-import android.content.Context
-import androidx.appcompat.app.AppCompatDelegate
-import androidx.core.os.LocaleListCompat
-import de.jeanlucmakiola.agendula.R
-import org.xmlpull.v1.XmlPullParser
-import java.util.Locale
-
-private const val ANDROID_NS = "http://schemas.android.com/apk/res/android"
-
-/**
- * Per-app language via AppCompatDelegate, driven by res/xml/locales_config.xml.
- *
- * That file is the single source of truth for which languages we ship: dropping
- * in a values-<tag> translation and adding a matching `<locale>` entry makes the
- * language show up here and in the system per-app-language settings, with no
- * other code change. The system-default choice is represented as `null`.
- *
- * On API 33+ this delegates to the platform per-app-languages API; below that
- * the appcompat backport persists the choice itself (manifest `autoStoreLocales`
- * service), so we don't mirror it in DataStore. Setting a locale recreates the
- * activity, which re-reads the current value for the picker.
- */
-object AppLanguage {
-
-    /**
-     * The BCP-47 tags the app ships translations for, in declaration order, as
-     * listed in locales_config.xml. Returns whatever could be parsed; a missing
-     * or malformed config yields an empty list (the picker then offers only the
-     * system-default entry rather than crashing).
-     */
-    fun supportedTags(context: Context): List<String> {
-        val tags = mutableListOf<String>()
-        val parser = context.resources.getXml(R.xml.locales_config)
-        try {
-            var event = parser.eventType
-            while (event != XmlPullParser.END_DOCUMENT) {
-                if (event == XmlPullParser.START_TAG && parser.name == "locale") {
-                    parser.getAttributeValue(ANDROID_NS, "name")?.let(tags::add)
-                }
-                event = parser.next()
-            }
-        } catch (_: Exception) {
-            // Fall back to whatever was parsed before the failure.
-        } finally {
-            parser.close()
-        }
-        return tags
-    }
-
-    /** The applied app language as a BCP-47 tag, or `null` when following the system. */
-    fun currentTag(): String? {
-        val locales = AppCompatDelegate.getApplicationLocales()
-        return if (locales.isEmpty) null else locales[0]?.toLanguageTag()
-    }
-
-    /** Apply a BCP-47 tag, or `null` to follow the system languages. */
-    fun apply(tag: String?) {
-        val locales = if (tag == null) {
-            LocaleListCompat.getEmptyLocaleList()
-        } else {
-            LocaleListCompat.forLanguageTags(tag)
-        }
-        AppCompatDelegate.setApplicationLocales(locales)
-    }
-
-    /**
-     * The autonym for a tag — the language's own name in its own script, e.g.
-     * "Deutsch", "English", "Français" — so users find their language regardless
-     * of the current UI language. Capitalised per the language's own rules.
-     */
-    fun displayName(tag: String): String {
-        val locale = Locale.forLanguageTag(tag)
-        return locale.getDisplayName(locale)
-            .replaceFirstChar { if (it.isLowerCase()) it.titlecase(locale) else it.toString() }
-    }
-}

app/src/main/java/de/jeanlucmakiola/agendula/ui/settings/SettingsScreen.kt

@@ -84,7 +84,6 @@ import androidx.lifecycle.LifecycleEventObserver
 import androidx.lifecycle.compose.LocalLifecycleOwner
 import androidx.lifecycle.compose.collectAsStateWithLifecycle
 import de.jeanlucmakiola.agendula.R
-import de.jeanlucmakiola.agendula.data.prefs.ListReminderOverride
 import de.jeanlucmakiola.agendula.data.prefs.ThemeMode
 import de.jeanlucmakiola.agendula.domain.TaskFormField
 import de.jeanlucmakiola.floret.components.CollapsingScaffold
@@ -94,6 +93,8 @@ import de.jeanlucmakiola.floret.components.Position
 import de.jeanlucmakiola.agendula.ui.common.ReminderLeadPicker
 import de.jeanlucmakiola.floret.components.pastelize
 import de.jeanlucmakiola.floret.components.positionOf
+import de.jeanlucmakiola.floret.locale.AppLanguage
+import de.jeanlucmakiola.floret.reminders.ReminderOverride
 import de.jeanlucmakiola.agendula.ui.common.reminderLeadTimeLabel
 
 /** The settings sub-screens reached from the hub's category rows. */
@@ -202,7 +203,7 @@ private fun LanguageRow(position: Position) {
     var current by remember { mutableStateOf(AppLanguage.currentTag()) }
     var showDialog by remember { mutableStateOf(false) }
     // null = follow the system; the rest are BCP-47 tags from locales_config.xml.
-    val options = remember { listOf<String?>(null) + AppLanguage.supportedTags(context) }
+    val options = remember { listOf<String?>(null) + AppLanguage.supportedTags(context, R.xml.locales_config) }
 
     GroupedRow(
         title = stringResource(R.string.settings_language),
@@ -479,10 +480,10 @@ private fun RemindersScreen(
     if (showOffset) {
         ReminderLeadPicker(
             title = stringResource(R.string.settings_default_reminder),
-            selected = ListReminderOverride.Minutes(state.settings.reminderLeadMinutes),
+            selected = ReminderOverride.Minutes(state.settings.reminderLeadMinutes),
             allowInherit = false,
             allowNone = false,
-            onSelect = { if (it is ListReminderOverride.Minutes) viewModel.setReminderLeadMinutes(it.minutes) },
+            onSelect = { if (it is ReminderOverride.Minutes) viewModel.setReminderLeadMinutes(it.minutes) },
             onDismiss = { showOffset = false },
         )
     }
@@ -500,22 +501,22 @@ private fun RemindersScreen(
 }
 
 /** The stored override for [listId], as a picker choice (absent → inherit). */
-private fun listOverrideChoice(state: SettingsUiState, listId: Long): ListReminderOverride {
+private fun listOverrideChoice(state: SettingsUiState, listId: Long): ReminderOverride {
     val map = state.settings.perListReminderOverride
     return when {
-        !map.containsKey(listId) -> ListReminderOverride.Inherit
-        map[listId] == null -> ListReminderOverride.None
-        else -> ListReminderOverride.Minutes(map.getValue(listId)!!)
+        !map.containsKey(listId) -> ReminderOverride.Inherit
+        map[listId] == null -> ReminderOverride.None
+        else -> ReminderOverride.Minutes(map.getValue(listId)!!)
     }
 }
 
 /** Row summary for a list: its override, or the inherited global default. */
 @Composable
-private fun listOverrideSummary(choice: ListReminderOverride, globalDefault: Int): String = when (choice) {
-    ListReminderOverride.Inherit ->
+private fun listOverrideSummary(choice: ReminderOverride, globalDefault: Int): String = when (choice) {
+    ReminderOverride.Inherit ->
         stringResource(R.string.settings_list_reminder_inherits, reminderLeadTimeLabel(globalDefault))
-    ListReminderOverride.None -> stringResource(R.string.reminder_none)
-    is ListReminderOverride.Minutes -> reminderLeadTimeLabel(choice.minutes)
+    ReminderOverride.None -> stringResource(R.string.reminder_none)
+    is ReminderOverride.Minutes -> reminderLeadTimeLabel(choice.minutes)
 }
 
 // ---------------------------------------------------------------------------

app/src/main/java/de/jeanlucmakiola/agendula/ui/settings/SettingsViewModel.kt

@@ -3,13 +3,13 @@ package de.jeanlucmakiola.agendula.ui.settings
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
 import dagger.hilt.android.lifecycle.HiltViewModel
-import de.jeanlucmakiola.agendula.data.prefs.ListReminderOverride
 import de.jeanlucmakiola.agendula.data.prefs.Settings
 import de.jeanlucmakiola.agendula.data.prefs.SettingsPrefs
 import de.jeanlucmakiola.agendula.data.prefs.ThemeMode
 import de.jeanlucmakiola.agendula.data.tasks.TasksRepository
 import de.jeanlucmakiola.agendula.domain.TaskFormField
 import de.jeanlucmakiola.agendula.domain.TaskList
+import de.jeanlucmakiola.floret.reminders.ReminderOverride
 import kotlinx.coroutines.flow.SharingStarted
 import kotlinx.coroutines.flow.StateFlow
 import kotlinx.coroutines.flow.catch
@@ -51,7 +51,7 @@ class SettingsViewModel @Inject constructor(
         prefs.setDefaultEditFields(if (enabled) current + field else current - field)
     }
 
-    /** Set (or clear, via [ListReminderOverride.Inherit]) a list's reminder override. */
-    fun setListReminderOverride(listId: Long, override: ListReminderOverride) =
+    /** Set (or clear, via [ReminderOverride.Inherit]) a list's reminder override. */
+    fun setListReminderOverride(listId: Long, override: ReminderOverride) =
         viewModelScope.launch { prefs.setListReminderOverride(listId, override) }
 }