38 lines
1.3 KiB
Dart
38 lines
1.3 KiB
Dart
import '../../core/utils/result.dart';
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import '../models/favorite.dart';
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import '../models/post.dart';
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import '../repositories/favorite_repository.dart';
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import '../repositories/post_repository.dart';
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class FavoriteService {
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FavoriteService(this._repository, [this._postRepository]);
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final FavoriteRepository _repository;
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final PostRepository? _postRepository;
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Future<Result<void>> addFavorite(Post post) => _repository.add(post);
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Future<Result<void>> removeFavorite(String postId, String providerId) {
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return _repository.remove(postId, providerId);
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}
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Future<Result<bool>> isFavorite(String postId, String providerId) {
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return _repository.exists(postId, providerId);
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}
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Future<Result<List<Favorite>>> getFavorites() => _repository.all();
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Future<Result<List<Post>>> getFavoritePosts() async {
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final postRepository = _postRepository;
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if (postRepository == null) return const Success([]);
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final favoritesResult = await _repository.all();
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if (favoritesResult is Error<List<Favorite>>) {
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return Error(favoritesResult.failure);
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}
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final favorites = (favoritesResult as Success<List<Favorite>>).data;
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return postRepository.getCachedPostsByKeys(
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favorites.map((favorite) => '${favorite.providerId}:${favorite.postId}'),
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);
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}
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Future<Result<void>> clearFavorites() => _repository.clear();
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}
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