80 lines
2 KiB
Dart
80 lines
2 KiB
Dart
import 'package:dartz/dartz.dart';
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import 'package:meta/meta.dart';
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import 'package:mobx/mobx.dart';
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import '../../core/error/failures.dart';
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import '../../domain/entities/album.dart';
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import '../../domain/entities/song.dart';
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import '../../domain/repositories/music_data_repository.dart';
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import '../../domain/usecases/get_albums.dart';
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import '../../domain/usecases/get_songs.dart';
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import '../../domain/usecases/update_database.dart';
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part 'music_data_store.g.dart';
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class MusicDataStore extends _MusicDataStore with _$MusicDataStore {
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MusicDataStore({@required MusicDataRepository musicDataRepository})
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: super(musicDataRepository);
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}
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abstract class _MusicDataStore with Store {
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_MusicDataStore(MusicDataRepository _musicDataRepository)
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: _updateDatabase = UpdateDatabase(_musicDataRepository),
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_getAlbums = GetAlbums(_musicDataRepository),
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_getSongs = GetSongs(_musicDataRepository);
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final UpdateDatabase _updateDatabase;
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final GetAlbums _getAlbums;
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final GetSongs _getSongs;
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@observable
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ObservableFuture<List<Album>> albumsFuture;
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@observable
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ObservableList<Song> songs = <Song>[].asObservable();
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@observable
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bool isFetchingSongs = false;
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@observable
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bool isUpdatingDatabase = false;
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@action
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Future<void> updateDatabase() async {
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isUpdatingDatabase = true;
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await _updateDatabase();
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await Future.wait([
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fetchAlbums(),
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fetchSongs(),
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]);
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isUpdatingDatabase = false;
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}
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@action
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Future<void> fetchAlbums() async {
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albumsFuture = ObservableFuture<List<Album>>(
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_getAlbums().then(
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(Either<Failure, List<Album>> either) => either.fold(
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(_) => [],
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(List<Album> a) => a,
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),
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),
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);
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}
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@action
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Future<void> fetchSongs() async {
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isFetchingSongs = true;
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final result = await _getSongs();
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result.fold(
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(_) => songs = <Song>[].asObservable(),
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(songList) {
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songs.clear();
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songs.addAll(songList);
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},
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);
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isFetchingSongs = false;
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}
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}
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