refactor(mobile): album api repository for album service (#12791)

* refactor(mobile): album api repository for album service

mobile/lib/services/entity.service.dart

@@ -0,0 +1,52 @@
+import 'package:hooks_riverpod/hooks_riverpod.dart';
+import 'package:immich_mobile/entities/album.entity.dart';
+import 'package:immich_mobile/interfaces/asset.interface.dart';
+import 'package:immich_mobile/interfaces/user.interface.dart';
+import 'package:immich_mobile/repositories/asset.repository.dart';
+import 'package:immich_mobile/repositories/user.repository.dart';
+
+class EntityService {
+  final IAssetRepository _assetRepository;
+  final IUserRepository _userRepository;
+  EntityService(
+    this._assetRepository,
+    this._userRepository,
+  );
+
+  Future<Album> fillAlbumWithDatabaseEntities(Album album) async {
+    final ownerId = album.ownerId;
+    if (ownerId != null) {
+      // replace owner with user from database
+      album.owner.value = await _userRepository.get(ownerId);
+    }
+    final thumbnailAssetId =
+        album.remoteThumbnailAssetId ?? album.thumbnail.value?.remoteId;
+    if (thumbnailAssetId != null) {
+      // set thumbnail with asset from database
+      album.thumbnail.value =
+          await _assetRepository.getByRemoteId(thumbnailAssetId);
+    }
+    if (album.remoteUsers.isNotEmpty) {
+      // replace all users with users from database
+      final users = await _userRepository
+          .getByIds(album.remoteUsers.map((user) => user.id).toList());
+      album.sharedUsers.clear();
+      album.sharedUsers.addAll(users);
+    }
+    if (album.remoteAssets.isNotEmpty) {
+      // replace all assets with assets from database
+      final assets = await _assetRepository
+          .getAllByRemoteId(album.remoteAssets.map((asset) => asset.remoteId!));
+      album.assets.clear();
+      album.assets.addAll(assets);
+    }
+    return album;
+  }
+}
+
+final entityServiceProvider = Provider(
+  (ref) => EntityService(
+    ref.watch(assetRepositoryProvider),
+    ref.watch(userRepositoryProvider),
+  ),
+);