mucke/lib/system/repositories/music_data_repository_impl.dart
2020-04-03 13:55:15 +02:00

54 lines
1.7 KiB
Dart

import 'package:dartz/dartz.dart';
import 'package:meta/meta.dart';
import 'package:mosh/domain/entities/song.dart';
import 'package:mosh/system/models/song_model.dart';
import '../../core/error/failures.dart';
import '../../domain/entities/album.dart';
import '../../domain/repositories/music_data_repository.dart';
import '../datasources/local_music_fetcher_contract.dart';
import '../datasources/music_data_source_contract.dart';
import '../models/album_model.dart';
class MusicDataRepositoryImpl implements MusicDataRepository {
MusicDataRepositoryImpl({
@required this.localMusicFetcher,
@required this.musicDataSource,
});
final LocalMusicFetcher localMusicFetcher;
final MusicDataSource musicDataSource;
@override
Future<Either<Failure, List<Album>>> getAlbums() async {
return musicDataSource.getAlbums().then(
(List<AlbumModel> albums) => Right<Failure, List<AlbumModel>>(albums));
}
@override
Future<Either<Failure, List<Song>>> getSongs() async {
return musicDataSource.getSongs().then(
(List<SongModel> songs) => Right<Failure, List<SongModel>>(songs));
}
// TODO: should remove albums that are not longer on the device
@override
Future<void> updateDatabase() async {
final List<AlbumModel> albums = await localMusicFetcher.getAlbums();
// TODO: compare with list of albums instead -> musicDataSource.getAlbums
for (final AlbumModel album in albums) {
if (!await musicDataSource.albumExists(album)) {
musicDataSource.insertAlbum(album);
}
}
final List<SongModel> songs = await localMusicFetcher.getSongs();
for (final SongModel song in songs) {
if (!await musicDataSource.songExists(song)) {
musicDataSource.insertSong(song);
}
}
}
}