set album cover from asset

mobile/lib/presentation/widgets/action_buttons/set_album_cover.widget.dart

@@ -0,0 +1,62 @@
+import 'package:flutter/material.dart';
+import 'package:fluttertoast/fluttertoast.dart';
+import 'package:hooks_riverpod/hooks_riverpod.dart';
+import 'package:immich_mobile/constants/enums.dart';
+import 'package:immich_mobile/domain/models/events.model.dart';
+import 'package:immich_mobile/domain/utils/event_stream.dart';
+import 'package:immich_mobile/extensions/translate_extensions.dart';
+import 'package:immich_mobile/presentation/widgets/action_buttons/base_action_button.widget.dart';
+import 'package:immich_mobile/providers/infrastructure/action.provider.dart';
+import 'package:immich_mobile/providers/timeline/multiselect.provider.dart';
+import 'package:immich_mobile/widgets/common/immich_toast.dart';
+
+class SetAlbumCoverActionButton extends ConsumerWidget {
+  final String albumId;
+  final ActionSource source;
+  final bool iconOnly;
+  final bool menuItem;
+
+  const SetAlbumCoverActionButton({
+    super.key,
+    required this.albumId,
+    required this.source,
+    this.iconOnly = false,
+    this.menuItem = false,
+  });
+
+  void _onTap(BuildContext context, WidgetRef ref) async {
+    if (!context.mounted) {
+      return;
+    }
+
+    final result = await ref.read(actionProvider.notifier).setAlbumCover(source, albumId);
+    ref.read(multiSelectProvider.notifier).reset();
+
+    if (source == ActionSource.viewer) {
+      EventStream.shared.emit(const ViewerReloadAssetEvent());
+    }
+
+    final successMessage = 'album_cover_updated'.t(context: context);
+
+    if (context.mounted) {
+      ImmichToast.show(
+        context: context,
+        msg: result.success ? successMessage : 'scaffold_body_error_occurred'.t(context: context),
+        gravity: ToastGravity.BOTTOM,
+        toastType: result.success ? ToastType.success : ToastType.error,
+      );
+    }
+  }
+
+  @override
+  Widget build(BuildContext context, WidgetRef ref) {
+    return BaseActionButton(
+      iconData: Icons.image_outlined,
+      label: 'set_as_album_cover'.t(context: context),
+      iconOnly: iconOnly,
+      menuItem: menuItem,
+      onPressed: () => _onTap(context, ref),
+      maxWidth: 100,
+    );
+  }
+}