feat(mobile): use app without storage permission (#5014)

* feat(mobile): use app without storage permission

* address review feedback

mobile/lib/shared/providers/app_state.provider.dart

@@ -45,12 +45,14 @@ class AppStateNotiifer extends StateNotifier<AppStateEnum> {
     _wasPaused = false;
 
     final isAuthenticated = _ref.read(authenticationProvider).isAuthenticated;
-    final permission = _ref.read(galleryPermissionNotifier);
 
-    // Needs to be logged in and have gallery permissions
-    if (isAuthenticated && (permission.isGranted || permission.isLimited)) {
-      _ref.read(backupProvider.notifier).resumeBackup();
-      _ref.read(backgroundServiceProvider).resumeServiceIfEnabled();
+    // Needs to be logged in
+    if (isAuthenticated) {
+      final permission = _ref.watch(galleryPermissionNotifier);
+      if (permission.isGranted || permission.isLimited) {
+        _ref.read(backupProvider.notifier).resumeBackup();
+        _ref.read(backgroundServiceProvider).resumeServiceIfEnabled();
+      }
       _ref.read(serverInfoProvider.notifier).getServerVersion();
       switch (_ref.read(tabProvider)) {
         case TabEnum.home:

mobile/lib/shared/services/sync.service.dart

@@ -90,6 +90,9 @@ class SyncService {
   Future<bool> syncNewAssetToDb(Asset newAsset) =>
       _lock.run(() => _syncNewAssetToDb(newAsset));
 
+  Future<bool> removeAllLocalAlbumsAndAssets() =>
+      _lock.run(_removeAllLocalAlbumsAndAssets);
+
   // private methods:
 
   /// Syncs users from the server to the local database
@@ -756,6 +759,23 @@ class SyncService {
         await a.assetCountAsync !=
             (await _db.eTags.getById(a.eTagKeyAssetCount))?.assetCount;
   }
+
+  Future<bool> _removeAllLocalAlbumsAndAssets() async {
+    try {
+      final assets = await _db.assets.where().localIdIsNotNull().findAll();
+      final (toDelete, toUpdate) =
+          _handleAssetRemoval(assets, [], remote: false);
+      await _db.writeTxn(() async {
+        await _db.assets.deleteAll(toDelete);
+        await _db.assets.putAll(toUpdate);
+        await _db.albums.where().localIdIsNotNull().deleteAll();
+      });
+      return true;
+    } catch (e) {
+      _log.severe("Failed to remove all local albums and assets: $e");
+      return false;
+    }
+  }
 }
 
 /// Returns a triple(toAdd, toUpdate, toRemove)