550 lines
23 KiB
C#
550 lines
23 KiB
C#
using MediaBrowser.Common.Extensions;
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using MediaBrowser.Controller.Configuration;
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using MediaBrowser.Controller.Entities.TV;
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using MediaBrowser.Controller.Library;
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using MediaBrowser.Controller.Localization;
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using MediaBrowser.Controller.Providers;
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using MediaBrowser.Model.Entities;
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using MediaBrowser.Model.Logging;
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using System;
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using System.Collections.Generic;
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using System.Globalization;
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using System.IO;
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using System.Linq;
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using System.Text;
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using System.Threading;
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using System.Threading.Tasks;
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using System.Xml;
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using CommonIO;
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using MediaBrowser.Common.IO;
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namespace MediaBrowser.Providers.TV
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{
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class MissingEpisodeProvider
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{
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private readonly IServerConfigurationManager _config;
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private readonly ILogger _logger;
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private readonly ILibraryManager _libraryManager;
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private readonly ILocalizationManager _localization;
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private readonly IFileSystem _fileSystem;
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private readonly CultureInfo _usCulture = new CultureInfo("en-US");
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public MissingEpisodeProvider(ILogger logger, IServerConfigurationManager config, ILibraryManager libraryManager, ILocalizationManager localization, IFileSystem fileSystem)
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{
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_logger = logger;
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_config = config;
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_libraryManager = libraryManager;
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_localization = localization;
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_fileSystem = fileSystem;
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}
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public async Task Run(IEnumerable<IGrouping<string, Series>> series, CancellationToken cancellationToken)
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{
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foreach (var seriesGroup in series)
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{
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try
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{
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await Run(seriesGroup, cancellationToken).ConfigureAwait(false);
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}
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catch (OperationCanceledException)
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{
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break;
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}
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catch (DirectoryNotFoundException)
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{
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//_logger.Warn("Series files missing for series id {0}", seriesGroup.Key);
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}
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catch (Exception ex)
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{
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_logger.ErrorException("Error in missing episode provider for series id {0}", ex, seriesGroup.Key);
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}
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}
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}
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private async Task Run(IGrouping<string, Series> group, CancellationToken cancellationToken)
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{
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var tvdbId = group.Key;
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// Todo: Support series by imdb id
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var seriesProviderIds = new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase);
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seriesProviderIds[MetadataProviders.Tvdb.ToString()] = tvdbId;
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var seriesDataPath = TvdbSeriesProvider.GetSeriesDataPath(_config.ApplicationPaths, seriesProviderIds);
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var episodeFiles = Directory.EnumerateFiles(seriesDataPath, "*.xml", SearchOption.TopDirectoryOnly)
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.Select(Path.GetFileNameWithoutExtension)
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.Where(i => i.StartsWith("episode-", StringComparison.OrdinalIgnoreCase))
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.ToList();
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var episodeLookup = episodeFiles
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.Select(i =>
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{
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var parts = i.Split('-');
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if (parts.Length == 3)
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{
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int seasonNumber;
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if (int.TryParse(parts[1], NumberStyles.Integer, _usCulture, out seasonNumber))
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{
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int episodeNumber;
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if (int.TryParse(parts[2], NumberStyles.Integer, _usCulture, out episodeNumber))
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{
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return new Tuple<int, int>(seasonNumber, episodeNumber);
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}
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}
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}
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return new Tuple<int, int>(-1, -1);
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})
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.Where(i => i.Item1 != -1 && i.Item2 != -1)
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.ToList();
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var hasBadData = HasInvalidContent(group);
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var anySeasonsRemoved = await RemoveObsoleteOrMissingSeasons(group, episodeLookup)
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.ConfigureAwait(false);
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var anyEpisodesRemoved = await RemoveObsoleteOrMissingEpisodes(group, episodeLookup)
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.ConfigureAwait(false);
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var hasNewEpisodes = false;
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if (_config.Configuration.EnableInternetProviders)
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{
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var seriesConfig = _config.Configuration.MetadataOptions.FirstOrDefault(i => string.Equals(i.ItemType, typeof(Series).Name, StringComparison.OrdinalIgnoreCase));
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if (seriesConfig == null || !seriesConfig.DisabledMetadataFetchers.Contains(TvdbSeriesProvider.Current.Name, StringComparer.OrdinalIgnoreCase))
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{
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hasNewEpisodes = await AddMissingEpisodes(group.ToList(), hasBadData, seriesDataPath, episodeLookup, cancellationToken)
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.ConfigureAwait(false);
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}
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}
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if (hasNewEpisodes || anySeasonsRemoved || anyEpisodesRemoved)
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{
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foreach (var series in group)
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{
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var directoryService = new DirectoryService(_fileSystem);
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await series.RefreshMetadata(new MetadataRefreshOptions(directoryService)
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{
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}, cancellationToken).ConfigureAwait(false);
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await series.ValidateChildren(new Progress<double>(), cancellationToken, new MetadataRefreshOptions(directoryService), true)
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.ConfigureAwait(false);
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}
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}
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}
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/// <summary>
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/// Returns true if a series has any seasons or episodes without season or episode numbers
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/// If this data is missing no virtual items will be added in order to prevent possible duplicates
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/// </summary>
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/// <param name="group"></param>
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/// <returns></returns>
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private bool HasInvalidContent(IEnumerable<Series> group)
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{
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var allItems = group.ToList().SelectMany(i => i.GetRecursiveChildren()).ToList();
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return allItems.OfType<Season>().Any(i => !i.IndexNumber.HasValue) ||
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allItems.OfType<Episode>().Any(i =>
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{
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if (!i.ParentIndexNumber.HasValue)
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{
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return true;
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}
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// You could have episodes under season 0 with no number
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return false;
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});
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}
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/// <summary>
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/// Adds the missing episodes.
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/// </summary>
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/// <param name="series">The series.</param>
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/// <param name="seriesHasBadData">if set to <c>true</c> [series has bad data].</param>
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/// <param name="seriesDataPath">The series data path.</param>
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/// <param name="episodeLookup">The episode lookup.</param>
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/// <param name="cancellationToken">The cancellation token.</param>
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/// <returns>Task.</returns>
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private async Task<bool> AddMissingEpisodes(List<Series> series,
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bool seriesHasBadData,
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string seriesDataPath,
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IEnumerable<Tuple<int, int>> episodeLookup,
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CancellationToken cancellationToken)
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{
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var existingEpisodes = (from s in series
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let seasonOffset = TvdbSeriesProvider.GetSeriesOffset(s.ProviderIds) ?? ((s.AnimeSeriesIndex ?? 1) - 1)
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from c in s.GetRecursiveChildren().OfType<Episode>()
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select new Tuple<int, Episode>((c.ParentIndexNumber ?? 0) + seasonOffset, c))
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.ToList();
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var lookup = episodeLookup as IList<Tuple<int, int>> ?? episodeLookup.ToList();
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var seasonCounts = (from e in lookup
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group e by e.Item1 into g
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select g)
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.ToDictionary(g => g.Key, g => g.Count());
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var hasChanges = false;
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foreach (var tuple in lookup)
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{
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if (tuple.Item1 <= 0)
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{
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// Ignore season zeros
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continue;
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}
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if (tuple.Item2 <= 0)
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{
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// Ignore episode zeros
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continue;
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}
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var existingEpisode = GetExistingEpisode(existingEpisodes, seasonCounts, tuple);
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if (existingEpisode != null)
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{
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continue;
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}
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var airDate = GetAirDate(seriesDataPath, tuple.Item1, tuple.Item2);
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if (!airDate.HasValue)
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{
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continue;
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}
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var now = DateTime.UtcNow;
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var targetSeries = DetermineAppropriateSeries(series, tuple.Item1);
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var seasonOffset = TvdbSeriesProvider.GetSeriesOffset(targetSeries.ProviderIds) ?? ((targetSeries.AnimeSeriesIndex ?? 1) - 1);
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if (airDate.Value < now)
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{
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// Be conservative here to avoid creating missing episodes for ones they already have
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if (!seriesHasBadData)
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{
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// tvdb has a lot of nearly blank episodes
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_logger.Info("Creating virtual missing episode {0} {1}x{2}", targetSeries.Name, tuple.Item1, tuple.Item2);
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await AddEpisode(targetSeries, tuple.Item1 - seasonOffset, tuple.Item2, cancellationToken).ConfigureAwait(false);
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hasChanges = true;
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}
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}
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else if (airDate.Value > now)
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{
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// tvdb has a lot of nearly blank episodes
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_logger.Info("Creating virtual unaired episode {0} {1}x{2}", targetSeries.Name, tuple.Item1, tuple.Item2);
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await AddEpisode(targetSeries, tuple.Item1 - seasonOffset, tuple.Item2, cancellationToken).ConfigureAwait(false);
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hasChanges = true;
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}
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}
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return hasChanges;
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}
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private Series DetermineAppropriateSeries(IEnumerable<Series> series, int seasonNumber)
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{
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var seriesAndOffsets = series.Select(s => new { Series = s, SeasonOffset = TvdbSeriesProvider.GetSeriesOffset(s.ProviderIds) ?? ((s.AnimeSeriesIndex ?? 1) - 1) }).ToList();
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var bestMatch = seriesAndOffsets.FirstOrDefault(s => s.Series.GetRecursiveChildren().OfType<Season>().Any(season => (season.IndexNumber + s.SeasonOffset) == seasonNumber)) ??
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seriesAndOffsets.FirstOrDefault(s => s.Series.GetRecursiveChildren().OfType<Season>().Any(season => (season.IndexNumber + s.SeasonOffset) == 1)) ??
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seriesAndOffsets.OrderBy(s => s.Series.GetRecursiveChildren().OfType<Season>().Select(season => season.IndexNumber + s.SeasonOffset).Min()).First();
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return bestMatch.Series;
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}
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/// <summary>
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/// Removes the virtual entry after a corresponding physical version has been added
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/// </summary>
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private async Task<bool> RemoveObsoleteOrMissingEpisodes(IEnumerable<Series> series,
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IEnumerable<Tuple<int, int>> episodeLookup)
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{
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var existingEpisodes = (from s in series
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let seasonOffset = TvdbSeriesProvider.GetSeriesOffset(s.ProviderIds) ?? ((s.AnimeSeriesIndex ?? 1) - 1)
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from c in s.GetRecursiveChildren().OfType<Episode>()
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select new { SeasonOffset = seasonOffset, Episode = c })
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.ToList();
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var physicalEpisodes = existingEpisodes
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.Where(i => i.Episode.LocationType != LocationType.Virtual)
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.ToList();
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var virtualEpisodes = existingEpisodes
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.Where(i => i.Episode.LocationType == LocationType.Virtual)
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.ToList();
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var episodesToRemove = virtualEpisodes
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.Where(i =>
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{
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if (i.Episode.IndexNumber.HasValue && i.Episode.ParentIndexNumber.HasValue)
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{
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var seasonNumber = i.Episode.ParentIndexNumber.Value + i.SeasonOffset;
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var episodeNumber = i.Episode.IndexNumber.Value;
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// If there's a physical episode with the same season and episode number, delete it
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if (physicalEpisodes.Any(p =>
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p.Episode.ParentIndexNumber.HasValue && (p.Episode.ParentIndexNumber.Value + p.SeasonOffset) == seasonNumber &&
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p.Episode.ContainsEpisodeNumber(episodeNumber)))
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{
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return true;
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}
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// If the episode no longer exists in the remote lookup, delete it
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if (!episodeLookup.Any(e => e.Item1 == seasonNumber && e.Item2 == episodeNumber))
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{
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return true;
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}
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return false;
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}
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return true;
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})
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.ToList();
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var hasChanges = false;
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foreach (var episodeToRemove in episodesToRemove.Select(e => e.Episode))
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{
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_logger.Info("Removing missing/unaired episode {0} {1}x{2}", episodeToRemove.Series.Name, episodeToRemove.ParentIndexNumber, episodeToRemove.IndexNumber);
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await episodeToRemove.Delete(new DeleteOptions
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{
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DeleteFileLocation = true
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}).ConfigureAwait(false);
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hasChanges = true;
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}
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return hasChanges;
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}
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/// <summary>
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/// Removes the obsolete or missing seasons.
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/// </summary>
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/// <param name="series">The series.</param>
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/// <param name="episodeLookup">The episode lookup.</param>
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/// <returns>Task{System.Boolean}.</returns>
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private async Task<bool> RemoveObsoleteOrMissingSeasons(IEnumerable<Series> series,
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IEnumerable<Tuple<int, int>> episodeLookup)
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{
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var existingSeasons = (from s in series
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let seasonOffset = TvdbSeriesProvider.GetSeriesOffset(s.ProviderIds) ?? ((s.AnimeSeriesIndex ?? 1) - 1)
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from c in s.Children.OfType<Season>()
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select new { SeasonOffset = seasonOffset, Season = c })
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.ToList();
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var physicalSeasons = existingSeasons
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.Where(i => i.Season.LocationType != LocationType.Virtual)
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.ToList();
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var virtualSeasons = existingSeasons
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.Where(i => i.Season.LocationType == LocationType.Virtual)
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.ToList();
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var seasonsToRemove = virtualSeasons
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.Where(i =>
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{
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if (i.Season.IndexNumber.HasValue)
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{
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var seasonNumber = i.Season.IndexNumber.Value + i.SeasonOffset;
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// If there's a physical season with the same number, delete it
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if (physicalSeasons.Any(p => p.Season.IndexNumber.HasValue && (p.Season.IndexNumber.Value + p.SeasonOffset) == seasonNumber))
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{
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return true;
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}
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// If the season no longer exists in the remote lookup, delete it
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if (episodeLookup.All(e => e.Item1 != seasonNumber))
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{
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return true;
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}
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return false;
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}
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// Season does not have a number
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// Remove if there are no episodes directly in series without a season number
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return i.Season.Series.GetRecursiveChildren().OfType<Episode>().All(s => s.ParentIndexNumber.HasValue || !s.IsInSeasonFolder);
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})
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.ToList();
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var hasChanges = false;
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foreach (var seasonToRemove in seasonsToRemove.Select(s => s.Season))
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{
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_logger.Info("Removing virtual season {0} {1}", seasonToRemove.Series.Name, seasonToRemove.IndexNumber);
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await seasonToRemove.Delete(new DeleteOptions
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{
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DeleteFileLocation = true
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}).ConfigureAwait(false);
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hasChanges = true;
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}
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return hasChanges;
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}
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/// <summary>
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/// Adds the episode.
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/// </summary>
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/// <param name="series">The series.</param>
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/// <param name="seasonNumber">The season number.</param>
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/// <param name="episodeNumber">The episode number.</param>
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/// <param name="cancellationToken">The cancellation token.</param>
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/// <returns>Task.</returns>
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private async Task AddEpisode(Series series, int seasonNumber, int episodeNumber, CancellationToken cancellationToken)
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{
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var season = series.Children.OfType<Season>()
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.FirstOrDefault(i => i.IndexNumber.HasValue && i.IndexNumber.Value == seasonNumber);
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if (season == null)
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{
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var provider = new DummySeasonProvider(_config, _logger, _localization, _libraryManager, _fileSystem);
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season = await provider.AddSeason(series, seasonNumber, cancellationToken).ConfigureAwait(false);
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}
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var name = string.Format("Episode {0}", episodeNumber.ToString(_usCulture));
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var episode = new Episode
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{
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Name = name,
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IndexNumber = episodeNumber,
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ParentIndexNumber = seasonNumber,
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Id = (series.Id + seasonNumber.ToString(_usCulture) + name).GetMBId(typeof(Episode))
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};
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episode.SetParent(season);
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await season.AddChild(episode, cancellationToken).ConfigureAwait(false);
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await episode.RefreshMetadata(new MetadataRefreshOptions(_fileSystem)
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{
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}, cancellationToken).ConfigureAwait(false);
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}
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/// <summary>
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/// Gets the existing episode.
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/// </summary>
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/// <param name="existingEpisodes">The existing episodes.</param>
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/// <param name="seasonCounts"></param>
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/// <param name="tuple">The tuple.</param>
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/// <returns>Episode.</returns>
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private Episode GetExistingEpisode(IList<Tuple<int, Episode>> existingEpisodes, Dictionary<int, int> seasonCounts, Tuple<int, int> tuple)
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{
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var s = tuple.Item1;
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var e = tuple.Item2;
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while (true)
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{
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var episode = GetExistingEpisode(existingEpisodes, s, e);
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if (episode != null)
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return episode;
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s--;
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if (seasonCounts.ContainsKey(s))
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e += seasonCounts[s];
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else
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break;
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}
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return null;
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}
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private static Episode GetExistingEpisode(IEnumerable<Tuple<int, Episode>> existingEpisodes, int season, int episode)
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{
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return existingEpisodes
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.Where(i => i.Item1 == season && i.Item2.ContainsEpisodeNumber(episode))
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.Select(i => i.Item2)
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.FirstOrDefault();
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}
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/// <summary>
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/// Gets the air date.
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/// </summary>
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/// <param name="seriesDataPath">The series data path.</param>
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/// <param name="seasonNumber">The season number.</param>
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/// <param name="episodeNumber">The episode number.</param>
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/// <returns>System.Nullable{DateTime}.</returns>
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private DateTime? GetAirDate(string seriesDataPath, int seasonNumber, int episodeNumber)
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{
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// First open up the tvdb xml file and make sure it has valid data
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var filename = string.Format("episode-{0}-{1}.xml", seasonNumber.ToString(_usCulture), episodeNumber.ToString(_usCulture));
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var xmlPath = Path.Combine(seriesDataPath, filename);
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DateTime? airDate = null;
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// It appears the best way to filter out invalid entries is to only include those with valid air dates
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using (var streamReader = new StreamReader(xmlPath, Encoding.UTF8))
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{
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// Use XmlReader for best performance
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using (var reader = XmlReader.Create(streamReader, new XmlReaderSettings
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{
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CheckCharacters = false,
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IgnoreProcessingInstructions = true,
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IgnoreComments = true,
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ValidationType = ValidationType.None
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}))
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{
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reader.MoveToContent();
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// Loop through each element
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while (reader.Read())
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{
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if (reader.NodeType == XmlNodeType.Element)
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{
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switch (reader.Name)
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{
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case "EpisodeName":
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{
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var val = reader.ReadElementContentAsString();
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if (string.IsNullOrWhiteSpace(val))
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{
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// Not valid, ignore these
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return null;
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}
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break;
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}
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case "FirstAired":
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{
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var val = reader.ReadElementContentAsString();
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if (!string.IsNullOrWhiteSpace(val))
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{
|
|
DateTime date;
|
|
if (DateTime.TryParse(val, out date))
|
|
{
|
|
airDate = date.ToUniversalTime();
|
|
}
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
default:
|
|
reader.Skip();
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return airDate;
|
|
}
|
|
}
|
|
}
|