using MediaBrowser.Controller.Entities.Audio; using MediaBrowser.Controller.Library; using MediaBrowser.Model.Logging; using System; using System.Linq; using System.Threading; using System.Threading.Tasks; namespace MediaBrowser.Server.Implementations.Library.Validators { class MusicGenresValidator { /// <summary> /// The _library manager /// </summary> private readonly ILibraryManager _libraryManager; /// <summary> /// The _logger /// </summary> private readonly ILogger _logger; public MusicGenresValidator(ILibraryManager libraryManager, ILogger logger) { _libraryManager = libraryManager; _logger = logger; } /// <summary> /// Runs the specified progress. /// </summary> /// <param name="progress">The progress.</param> /// <param name="cancellationToken">The cancellation token.</param> /// <returns>Task.</returns> public async Task Run(IProgress<double> progress, CancellationToken cancellationToken) { var items = _libraryManager.RootFolder.GetRecursiveChildren(i => (i is IHasMusicGenres)) .SelectMany(i => i.Genres) .DistinctNames() .ToList(); var numComplete = 0; var count = items.Count; foreach (var name in items) { try { var itemByName = _libraryManager.GetMusicGenre(name); await itemByName.RefreshMetadata(cancellationToken).ConfigureAwait(false); } catch (OperationCanceledException) { // Don't clutter the log break; } catch (Exception ex) { _logger.ErrorException("Error refreshing {0}", ex, name); } numComplete++; double percent = numComplete; percent /= count; percent *= 100; progress.Report(percent); } progress.Report(100); } } }