mucke/lib/system/repositories/music_data_repository_impl.dart
2020-09-19 22:23:58 +02:00

86 lines
2.8 KiB
Dart

import 'package:dartz/dartz.dart';
import 'package:logging/logging.dart';
import 'package:meta/meta.dart';
import '../../core/error/failures.dart';
import '../../domain/entities/album.dart';
import '../../domain/entities/artist.dart';
import '../../domain/entities/song.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';
import '../models/artist_model.dart';
import '../models/song_model.dart';
class MusicDataRepositoryImpl implements MusicDataRepository {
MusicDataRepositoryImpl({
@required this.localMusicFetcher,
@required this.musicDataSource,
});
final LocalMusicFetcher localMusicFetcher;
final MusicDataSource musicDataSource;
static final _log = Logger('MusicDataRepository');
@override
Future<Either<Failure, List<Artist>>> getArtists() async {
return musicDataSource.getArtists().then((List<ArtistModel> artists) =>
Right<Failure, List<ArtistModel>>(artists));
}
@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));
}
@override
Future<Either<Failure, List<Song>>> getSongsFromAlbum(Album album) async {
return musicDataSource.getSongsFromAlbum(album as AlbumModel).then(
(List<SongModel> songs) => Right<Failure, List<SongModel>>(songs));
}
@override
Future<void> updateDatabase() async {
_log.info('updataDatabase called');
await musicDataSource.deleteAllArtists();
final List<ArtistModel> artists = await localMusicFetcher.getArtists();
for (final ArtistModel artist in artists) {
await musicDataSource.insertArtist(artist);
}
await musicDataSource.deleteAllAlbums();
final List<AlbumModel> albums = await localMusicFetcher.getAlbums();
final Map<int, int> albumIdMap = {};
for (final AlbumModel album in albums) {
final int newAlbumId = await musicDataSource.insertAlbum(album);
albumIdMap[album.id] = newAlbumId;
}
final List<SongModel> songs = await localMusicFetcher.getSongs();
final List<SongModel> songsToInsert = [];
for (final SongModel song in songs) {
songsToInsert.add(song.copyWith(albumId: albumIdMap[song.albumId]));
}
await musicDataSource.insertSongs(songsToInsert);
_log.info('updataDatabase finished');
}
@override
Future<void> setSongBlocked(Song song, bool blocked) async {
await musicDataSource.setSongBlocked(song as SongModel, blocked);
}
}