immich/mobile/lib/presentation/actions/favorite.action.dart

import 'package:flutter/material.dart';
import 'package:immich_mobile/domain/models/asset/base_asset.model.dart';
import 'package:immich_mobile/generated/translations.g.dart';
import 'package:immich_mobile/presentation/actions/action.dart';
import 'package:immich_mobile/providers/infrastructure/asset.provider.dart';
import 'package:immich_ui/immich_ui.dart';

class FavoriteAction extends AssetAction<RemoteAsset> {
  final bool shouldFavorite;

  FavoriteAction({required super.assets}) : shouldFavorite = assets.any((asset) => !asset.isFavorite);

  @override
  IconData get icon => shouldFavorite ? Icons.favorite_border_rounded : Icons.favorite_rounded;

  @override
  String label(ActionScope scope) => shouldFavorite ? scope.context.t.favorite : scope.context.t.unfavorite;

  @override
  Iterable<RemoteAsset> filter(ActionScope scope) => assets
      .where(
        (asset) => asset is RemoteAsset && asset.ownerId == scope.authUser.id && asset.isFavorite == !shouldFavorite,
      )
      .cast<RemoteAsset>();

  @override
  bool isVisible(ActionScope scope) => filter(scope).isNotEmpty;

  @override
  Future<void> onAction(ActionScope scope) async {
    final ActionScope(:ref) = scope;
    final assets = filter(scope).map((asset) => asset.id).toList(growable: false);

    await ref.read(assetServiceProvider).updateFavorite(assets, shouldFavorite);
    final message = shouldFavorite
        ? StaticTranslations.instance.favorite_action_prompt(count: assets.length)
        : StaticTranslations.instance.unfavorite_action_prompt(count: assets.length);
    snackbar.success(message);
  }
}