Source Code added

mobile/lib/providers/backup/backup_album.provider.dart

@@ -0,0 +1,59 @@
+import 'package:hooks_riverpod/hooks_riverpod.dart';
+import 'package:immich_mobile/domain/models/album/local_album.model.dart';
+import 'package:immich_mobile/domain/services/local_album.service.dart';
+import 'package:immich_mobile/infrastructure/repositories/local_album.repository.dart';
+import 'package:immich_mobile/providers/infrastructure/album.provider.dart';
+
+final backupAlbumProvider = StateNotifierProvider<BackupAlbumNotifier, List<LocalAlbum>>(
+  (ref) => BackupAlbumNotifier(ref.watch(localAlbumServiceProvider)),
+);
+
+class BackupAlbumNotifier extends StateNotifier<List<LocalAlbum>> {
+  BackupAlbumNotifier(this._localAlbumService) : super([]) {
+    getAll();
+  }
+
+  final LocalAlbumService _localAlbumService;
+
+  Future<void> getAll() async {
+    state = await _localAlbumService.getAll(sortBy: {SortLocalAlbumsBy.assetCount});
+  }
+
+  Future<void> selectAlbum(LocalAlbum album) async {
+    album = album.copyWith(backupSelection: BackupSelection.selected);
+    await _localAlbumService.update(album);
+
+    state = state
+        .map(
+          (currentAlbum) => currentAlbum.id == album.id
+              ? currentAlbum.copyWith(backupSelection: BackupSelection.selected)
+              : currentAlbum,
+        )
+        .toList();
+  }
+
+  Future<void> deselectAlbum(LocalAlbum album) async {
+    album = album.copyWith(backupSelection: BackupSelection.none);
+    await _localAlbumService.update(album);
+
+    state = state
+        .map(
+          (currentAlbum) =>
+              currentAlbum.id == album.id ? currentAlbum.copyWith(backupSelection: BackupSelection.none) : currentAlbum,
+        )
+        .toList();
+  }
+
+  Future<void> excludeAlbum(LocalAlbum album) async {
+    album = album.copyWith(backupSelection: BackupSelection.excluded);
+    await _localAlbumService.update(album);
+
+    state = state
+        .map(
+          (currentAlbum) => currentAlbum.id == album.id
+              ? currentAlbum.copyWith(backupSelection: BackupSelection.excluded)
+              : currentAlbum,
+        )
+        .toList();
+  }
+}