public TrackViewModel(string artistName, Album album, Song song, DispatchingObservableCollection<LocationCommandMapping> trackLocationCommandMappings)
{
_song = song;
ArtistName = artistName;
Album = album;
TrackLocationCommandMappings = trackLocationCommandMappings;
}
private async Task<bool> ScanMusicLibraryFolder(StorageFolder parentFolder, IList<Artist> artists)
{
var newData = false;
foreach (var folder in await parentFolder.GetFoldersAsync())
{
foreach (var f in await folder.GetFilesAsync(CommonFileQuery.OrderByMusicProperties))
{
var fileProps = await f.Properties.GetMusicPropertiesAsync();
if (string.IsNullOrWhiteSpace(fileProps.Artist) == false)
{
var artist = artists.FirstOrDefault(x => string.Compare(x.Name, fileProps.Artist, StringComparison.CurrentCultureIgnoreCase) == 0);
if (artist == null)
{
artist = new Artist
{
Name = fileProps.Artist
};
newData = true;
artists.Add(artist);
}
var album = artist.Albums.FirstOrDefault(x =>
string.Compare(x.Title, fileProps.Album, StringComparison.CurrentCultureIgnoreCase) == 0);
if (album == null)
{
var relativeFolder = folder.FolderRelativeId.Substring(folder.FolderRelativeId.IndexOf(@"\") + 1);
album = new Album
{
Title = fileProps.Album,
Folder = Path.Combine(relativeFolder, fileProps.Album.RemoveIllegalChars())
};
artist.Albums.Add(album);
newData = true;
}
uint discNumber = 1;
if (f.Name[1] == '-')
{
discNumber = Convert.ToUInt32(f.Name.Substring(0, 1));
}
var song = album.Songs.FirstOrDefault(s => s.DiscNumber == discNumber && s.TrackNumber == fileProps.TrackNumber);
if (song == null)
{
song = new Song
{
Title = fileProps.Title,
DiscNumber = discNumber,
TrackNumber = fileProps.TrackNumber,
Path = f.Path,
Duration = fileProps.Duration
};
album.Songs.Add(song);
newData = true;
await _presentationBus.Publish(new SongLoadedEvent(album, song));
// save new entry to app storage
}
song.SetStorageFile(f);
}
}
newData |= await ScanMusicLibraryFolder(folder, artists);
}
return newData;
}
public SongLoadedEvent(Album album, Song song)
{
Album = album;
Song = song;
}