public IEnumerable<Audio> GetInstantMixFromPlaylist(Playlist item, User user)
{
var genres = item
.GetRecursiveChildren(user, i => i is Audio)
.Cast<Audio>()
.SelectMany(i => i.Genres)
.Concat(item.Genres)
.DistinctNames();
return GetInstantMixFromGenres(genres, user);
}
public IEnumerable<Audio> GetInstantMixFromPlaylist(Playlist item, User user)
{
var genres = item
.GetRecursiveChildren(user, true)
.OfType<Audio>()
.SelectMany(i => i.Genres)
.Concat(item.Genres)
.Distinct(StringComparer.OrdinalIgnoreCase);
return GetInstantMixFromGenres(genres, user);
}
public IEnumerable<Audio> GetInstantMixFromPlaylist(Playlist item, User user)
{
var genres = item
.GetRecursiveChildren(user, new InternalItemsQuery(user)
{
IncludeItemTypes = new[] { typeof(Audio).Name }
})
.Cast<Audio>()
.SelectMany(i => i.Genres)
.Concat(item.Genres)
.DistinctNames();
return GetInstantMixFromGenres(genres, user);
}
public async Task<PlaylistCreationResult> CreatePlaylist(PlaylistCreationRequest options)
{
var name = options.Name;
var folderName = _fileSystem.GetValidFilename(name) + " [playlist]";
var parentFolder = GetPlaylistsFolder(null);
if (parentFolder == null)
{
throw new ArgumentException();
}
if (string.IsNullOrWhiteSpace(options.MediaType))
{
foreach (var itemId in options.ItemIdList)
{
var item = _libraryManager.GetItemById(itemId);
if (item == null)
{
throw new ArgumentException("No item exists with the supplied Id");
}
if (!string.IsNullOrWhiteSpace(item.MediaType))
{
options.MediaType = item.MediaType;
}
else if (item is MusicArtist || item is MusicAlbum || item is MusicGenre)
{
options.MediaType = MediaType.Audio;
}
else if (item is Genre)
{
options.MediaType = MediaType.Video;
}
else
{
var folder = item as Folder;
if (folder != null)
{
options.MediaType = folder.GetRecursiveChildren()
.Where(i => !i.IsFolder && i.SupportsAddingToPlaylist)
.Select(i => i.MediaType)
.FirstOrDefault(i => !string.IsNullOrWhiteSpace(i));
}
}
if (!string.IsNullOrWhiteSpace(options.MediaType))
{
break;
}
}
}
if (string.IsNullOrWhiteSpace(options.MediaType))
{
throw new ArgumentException("A playlist media type is required.");
}
var user = _userManager.GetUserById(new Guid(options.UserId));
var path = Path.Combine(parentFolder.Path, folderName);
path = GetTargetPath(path);
_iLibraryMonitor.ReportFileSystemChangeBeginning(path);
try
{
Directory.CreateDirectory(path);
var playlist = new Playlist
{
Name = name,
Parent = parentFolder,
Path = path,
OwnerUserId = options.UserId
};
playlist.SetMediaType(options.MediaType);
await parentFolder.AddChild(playlist, CancellationToken.None).ConfigureAwait(false);
await playlist.RefreshMetadata(new MetadataRefreshOptions { ForceSave = true }, CancellationToken.None)
.ConfigureAwait(false);
if (options.ItemIdList.Count > 0)
{
await AddToPlaylistInternal(playlist.Id.ToString("N"), options.ItemIdList, user);
}
return new PlaylistCreationResult
{
Id = playlist.Id.ToString("N")
};
}
finally
{
// Refresh handled internally
_iLibraryMonitor.ReportFileSystemChangeComplete(path, false);
}
}
