feat: manually upload local assets to album

mobile/lib/domain/models/asset/remote_asset.model.dart

@@ -81,15 +81,10 @@ class RemoteAsset extends BaseAsset {
         stackId == other.stackId;
   }
 
+  // Mirrors `==` above, which deliberately does not compare localId.
   @override
   int get hashCode =>
-      super.hashCode ^
-      id.hashCode ^
-      ownerId.hashCode ^
-      localId.hashCode ^
-      thumbHash.hashCode ^
-      visibility.hashCode ^
-      stackId.hashCode;
+      super.hashCode ^ id.hashCode ^ ownerId.hashCode ^ thumbHash.hashCode ^ visibility.hashCode ^ stackId.hashCode;
 
   RemoteAsset copyWith({
     String? id,

mobile/lib/domain/services/remote_album.service.dart

@@ -9,12 +9,47 @@ import 'package:immich_mobile/infrastructure/repositories/remote_album.repositor
 import 'package:immich_mobile/models/albums/album_search.model.dart';
 import 'package:immich_mobile/providers/album/album_sort_by_options.provider.dart';
 import 'package:immich_mobile/repositories/drift_album_api_repository.dart';
+import 'package:immich_mobile/services/foreground_upload.service.dart';
+import 'package:logging/logging.dart';
+
+/// Categorizes a heterogeneous asset selection into the candidates that can
+/// be added to an album immediately (already on the server) and the local-only
+/// candidates that must be uploaded first.
+class AlbumAssetCandidates {
+  final List<String> remoteAssetIds;
+  final List<LocalAsset> localAssetsToUpload;
+
+  const AlbumAssetCandidates({required this.remoteAssetIds, required this.localAssetsToUpload});
+}
 
 class RemoteAlbumService {
+  static final _logger = Logger('RemoteAlbumService');
+
   final DriftRemoteAlbumRepository _repository;
   final DriftAlbumApiRepository _albumApiRepository;
+  final ForegroundUploadService _uploadService;
 
-  const RemoteAlbumService(this._repository, this._albumApiRepository);
+  const RemoteAlbumService(this._repository, this._albumApiRepository, this._uploadService);
+
+  /// Categorizes a heterogeneous asset selection into already-on-server IDs
+  /// and local assets that still need to be uploaded.
+  static AlbumAssetCandidates categorizeCandidates(Iterable<BaseAsset> assets) {
+    final remoteIds = <String>[];
+    final localToUpload = <LocalAsset>[];
+    for (final asset in assets) {
+      if (asset is RemoteAsset) {
+        remoteIds.add(asset.id);
+      } else if (asset is LocalAsset) {
+        final remoteId = asset.remoteId;
+        if (remoteId != null) {
+          remoteIds.add(remoteId);
+        } else {
+          localToUpload.add(asset);
+        }
+      }
+    }
+    return AlbumAssetCandidates(remoteAssetIds: remoteIds, localAssetsToUpload: localToUpload);
+  }
 
   Stream<RemoteAlbum?> watchAlbum(String albumId) {
     return _repository.watchAlbum(albumId);
@@ -148,6 +183,99 @@ class RemoteAlbumService {
     return album.added.length;
   }
 
+  /// Adds an asset selection to an album, uploading any local-only assets
+  /// first and linking each one as soon as its upload completes.
+  Future<int> addAssetsToAlbum({
+    required String albumId,
+    required UserDto uploader,
+    required AlbumAssetCandidates candidates,
+    UploadCallbacks uploadCallbacks = const UploadCallbacks(),
+  }) async {
+    int addedCount = 0;
+    if (candidates.remoteAssetIds.isNotEmpty) {
+      addedCount += await addAssets(albumId: albumId, assetIds: candidates.remoteAssetIds);
+    }
+    if (candidates.localAssetsToUpload.isNotEmpty) {
+      addedCount += await _uploadAndAddLocals(albumId, uploader, candidates.localAssetsToUpload, uploadCallbacks);
+    }
+    return addedCount;
+  }
+
+  /// Creates an album, seeding it with already-remote asset IDs, then uploads
+  /// local-only assets and links each one as it finishes.
+  Future<RemoteAlbum> createAlbumWithAssets({
+    required String title,
+    required UserDto owner,
+    String? description,
+    AlbumAssetCandidates candidates = const AlbumAssetCandidates(remoteAssetIds: [], localAssetsToUpload: []),
+    UploadCallbacks uploadCallbacks = const UploadCallbacks(),
+  }) async {
+    final album = await createAlbum(
+      title: title,
+      owner: owner,
+      description: description,
+      assetIds: candidates.remoteAssetIds,
+    );
+    if (candidates.localAssetsToUpload.isNotEmpty) {
+      await _uploadAndAddLocals(album.id, owner, candidates.localAssetsToUpload, uploadCallbacks);
+    }
+    return album;
+  }
+
+  Future<int> _uploadAndAddLocals(
+    String albumId,
+    UserDto uploader,
+    List<LocalAsset> localAssets,
+    UploadCallbacks userCallbacks,
+  ) async {
+    int addedCount = 0;
+    final pendingAdds = <Future<void>>[];
+    final localById = {for (final a in localAssets) a.id: a};
+
+    final wrappedCallbacks = UploadCallbacks(
+      onProgress: userCallbacks.onProgress,
+      onICloudProgress: userCallbacks.onICloudProgress,
+      onError: userCallbacks.onError,
+      onSuccess: (localId, remoteId) {
+        userCallbacks.onSuccess?.call(localId, remoteId);
+        final source = localById[localId];
+        if (source == null) {
+          _logger.warning('Upload success for $localId but source LocalAsset missing; skipping album link');
+          return;
+        }
+        pendingAdds.add(
+          _linkUploadedAssetToAlbum(albumId, remoteId, uploader, source)
+              .then<void>((added) {
+                addedCount += added;
+              })
+              .catchError((Object error, StackTrace stack) {
+                _logger.warning('Failed to add uploaded asset $remoteId to album $albumId', error, stack);
+              }),
+        );
+      },
+    );
+
+    await _uploadService.uploadManual(localAssets, callbacks: wrappedCallbacks);
+    await Future.wait(pendingAdds);
+    return addedCount;
+  }
+
+  /// Links a freshly-uploaded asset to an album, ensuring the local DB
+  /// reflects the change without waiting for the next sync. We call the API
+  /// (server is the source of truth), then upsert a placeholder
+  /// `remote_asset_entity` row from the local source so the FK-protected
+  /// junction insert succeeds. Sync overwrites the placeholder later with
+  /// the authoritative server data.
+  Future<int> _linkUploadedAssetToAlbum(String albumId, String remoteId, UserDto uploader, LocalAsset source) async {
+    final result = await _albumApiRepository.addAssets(albumId, [remoteId]);
+    if (result.added.isEmpty) {
+      return 0;
+    }
+    await _repository.upsertRemoteAssetStub(remoteId: remoteId, ownerId: uploader.id, source: source);
+    await _repository.addAssets(albumId, result.added);
+    return result.added.length;
+  }
+
   Future<void> deleteAlbum(String albumId) async {
     await _albumApiRepository.deleteAlbum(albumId);