public GenreViewModel(MusicLibrary library, Genre genre)
{
this.Name = genre.Name;
this.genre = genre;
this._filters = new FilterViewModel[0];
this.library = library;
library.PropertyChanged += library_PropertyChanged;
if (library.Songs != null) LoadFilters();
}
public async Task<IEnumerable<Song>> GetSongsForGenre(Genre genre)
{
return await databaseConnection.QueryAsync<Song>("select song.* from Song song, SongGenre songGenre where song.Id = songGenre.SongId and songGenre.GenreId = ?", genre.Id);
}
private async Task AddAllRemainingSongs()
{
var newAlbums = songsToAdd.Select(p => new Tuple<string, string>(p.Album, p.AlbumArtist)).Distinct()
.Where(p => p.Item1.Trim() != "" && !this.Albums.Any(q => q.Artist == p.Item2 && q.Name == p.Item1)).Select(p => new Album(p.Item1, p.Item2, this));
foreach (var newAlbum in newAlbums) this.Albums.Add(newAlbum);
var newArtists = songsToAdd.Select(p => p.AlbumArtist).Distinct(StringComparer.OrdinalIgnoreCase).Where(p => !this.Artists.Contains(p, StringComparer.OrdinalIgnoreCase));
foreach (var newArtist in newArtists) this.Artists.Add(newArtist);
foreach (var song in songsToAdd)
{
var exisitingSong = this.Songs.Where(p => p.FileName == song.FileName).FirstOrDefault();
if (exisitingSong != null)
{
song.Id = exisitingSong.Id;
await databaseConnection.UpdateAsync(song);
this.Songs.Remove(song);
}
else
await databaseConnection.InsertAsync(song);
this.Songs.Add(song);
await databaseConnection.ExecuteAsync("delete from SongGenre where SongId = ?", song.Id);
}
foreach (var genre in songGenresToAdd)
{
var genreInLibrary = this.Genres.FirstOrDefault(p => string.Equals(p.Name, genre.Item2, StringComparison.OrdinalIgnoreCase));
if (genreInLibrary == null)
{
genreInLibrary = new Genre(genre.Item2);
await databaseConnection.InsertAsync(genreInLibrary);
this.Genres.Add(genreInLibrary);
}
await databaseConnection.InsertAsync(new SongGenre(genre.Item1.Id, genreInLibrary.Id));
}
songsToAdd.Clear();
songGenresToAdd.Clear();
}