feat: in-app restore always uses the full import flow

Route by entry point, not just event count. Opening a .ics from outside
still sends a single event straight to the prefilled create form (add one
event, e.g. a ticket). The in-app 'Restore from .ics' button passes
forceMany so even a single-event backup goes through the calendar picker +
summary — its intent is 'restore a backup', not 'add this event'.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

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

@@ -172,9 +172,15 @@ 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) }
+    // 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()
         }
     }
@@ -414,7 +420,7 @@ fun CalendarHost(
         ) {
             CalendarsScreen(
                 onBack = { showCalendars = false },
-                onImport = { importUri = it },
+                onImport = { importUri = it; importForceMany = true },
             )
         }
 
@@ -423,6 +429,7 @@ fun CalendarHost(
         importUri?.let { uri ->
             ImportScreen(
                 uri = uri,
+                forceMany = importForceMany,
                 onClose = { importUri = null },
                 onOpenSingle = { form ->
                     importUri = null

app/src/main/java/de/jeanlucmakiola/calendula/ui/imports/ImportScreen.kt

@@ -64,7 +64,9 @@ import de.jeanlucmakiola.calendula.ui.common.predictiveBack
  * Handles an opened/received `.ics` file. A single event is handed straight to
  * the prefilled create form via [onOpenSingle]; several events show a target-
  * calendar picker and import in bulk (dedup by UID), then a result summary.
- * Empty/failed files show a short message and close.
+ * Empty/failed files show a short message and close. [forceMany] keeps a
+ * single-event file on the bulk path — used by the in-app restore, whose intent
+ * is "restore a backup" rather than "add this one event".
  */
 @OptIn(ExperimentalMaterial3Api::class)
 @Composable
@@ -72,9 +74,10 @@ fun ImportScreen(
     uri: Uri,
     onClose: () -> Unit,
     onOpenSingle: (EventForm) -> Unit,
+    forceMany: Boolean = false,
     viewModel: ImportViewModel = hiltViewModel(),
 ) {
-    LaunchedEffect(uri) { viewModel.load(uri) }
+    LaunchedEffect(uri) { viewModel.load(uri, forceMany) }
     val state by viewModel.state.collectAsStateWithLifecycle()
 
     // A single event isn't shown here — it opens the create form for review.

app/src/main/java/de/jeanlucmakiola/calendula/ui/imports/ImportViewModel.kt

@@ -66,8 +66,13 @@ class ImportViewModel @Inject constructor(
     val state: StateFlow<ImportUiState> = _state.asStateFlow()
     private var started = false
 
-    /** Read + parse [uri] once; subsequent calls (recomposition) are ignored. */
-    fun load(uri: Uri) {
+    /**
+     * Read + parse [uri] once; subsequent calls (recomposition) are ignored.
+     * When [forceMany] is set (an in-app restore), a single-event file still goes
+     * through the bulk picker + summary rather than the prefilled create form —
+     * a restore is "bring back a backup", not "add this one event".
+     */
+    fun load(uri: Uri, forceMany: Boolean = false) {
         if (started) return
         started = true
         viewModelScope.launch {
@@ -77,7 +82,7 @@ class ImportViewModel @Inject constructor(
             _state.value = when {
                 parsed == null -> ImportUiState.Failed
                 parsed.events.isEmpty() -> ImportUiState.Empty
-                parsed.events.size == 1 -> ImportUiState.Single(
+                parsed.events.size == 1 && !forceMany -> ImportUiState.Single(
                     form = parsed.events.single().toEventForm(TimeZone.currentSystemDefault()),
                     warnings = parsed.warnings,
                 )