|  | @@ -1,404 +0,0 @@
 | 
	
		
			
				|  |  | -#pragma warning disable CS1591
 | 
	
		
			
				|  |  | -
 | 
	
		
			
				|  |  | -using System;
 | 
	
		
			
				|  |  | -using System.Collections.Generic;
 | 
	
		
			
				|  |  | -using System.Globalization;
 | 
	
		
			
				|  |  | -using System.Linq;
 | 
	
		
			
				|  |  | -using System.Threading;
 | 
	
		
			
				|  |  | -using System.Threading.Tasks;
 | 
	
		
			
				|  |  | -using MediaBrowser.Controller.Configuration;
 | 
	
		
			
				|  |  | -using MediaBrowser.Controller.Entities;
 | 
	
		
			
				|  |  | -using MediaBrowser.Controller.Entities.TV;
 | 
	
		
			
				|  |  | -using MediaBrowser.Controller.Library;
 | 
	
		
			
				|  |  | -using MediaBrowser.Controller.Providers;
 | 
	
		
			
				|  |  | -using MediaBrowser.Model.Entities;
 | 
	
		
			
				|  |  | -using MediaBrowser.Model.Globalization;
 | 
	
		
			
				|  |  | -using MediaBrowser.Model.IO;
 | 
	
		
			
				|  |  | -using MediaBrowser.Providers.Plugins.TheTvdb;
 | 
	
		
			
				|  |  | -using Microsoft.Extensions.Logging;
 | 
	
		
			
				|  |  | -
 | 
	
		
			
				|  |  | -namespace MediaBrowser.Providers.TV
 | 
	
		
			
				|  |  | -{
 | 
	
		
			
				|  |  | -    public class MissingEpisodeProvider
 | 
	
		
			
				|  |  | -    {
 | 
	
		
			
				|  |  | -        private const double UnairedEpisodeThresholdDays = 2;
 | 
	
		
			
				|  |  | -
 | 
	
		
			
				|  |  | -        private readonly IServerConfigurationManager _config;
 | 
	
		
			
				|  |  | -        private readonly ILogger _logger;
 | 
	
		
			
				|  |  | -        private readonly ILibraryManager _libraryManager;
 | 
	
		
			
				|  |  | -        private readonly ILocalizationManager _localization;
 | 
	
		
			
				|  |  | -        private readonly IFileSystem _fileSystem;
 | 
	
		
			
				|  |  | -        private readonly TvdbClientManager _tvdbClientManager;
 | 
	
		
			
				|  |  | -
 | 
	
		
			
				|  |  | -        public MissingEpisodeProvider(
 | 
	
		
			
				|  |  | -            ILogger logger,
 | 
	
		
			
				|  |  | -            IServerConfigurationManager config,
 | 
	
		
			
				|  |  | -            ILibraryManager libraryManager,
 | 
	
		
			
				|  |  | -            ILocalizationManager localization,
 | 
	
		
			
				|  |  | -            IFileSystem fileSystem,
 | 
	
		
			
				|  |  | -            TvdbClientManager tvdbClientManager)
 | 
	
		
			
				|  |  | -        {
 | 
	
		
			
				|  |  | -            _logger = logger;
 | 
	
		
			
				|  |  | -            _config = config;
 | 
	
		
			
				|  |  | -            _libraryManager = libraryManager;
 | 
	
		
			
				|  |  | -            _localization = localization;
 | 
	
		
			
				|  |  | -            _fileSystem = fileSystem;
 | 
	
		
			
				|  |  | -            _tvdbClientManager = tvdbClientManager;
 | 
	
		
			
				|  |  | -        }
 | 
	
		
			
				|  |  | -
 | 
	
		
			
				|  |  | -        public async Task<bool> Run(Series series, bool addNewItems, CancellationToken cancellationToken)
 | 
	
		
			
				|  |  | -        {
 | 
	
		
			
				|  |  | -            var tvdbIdString = series.GetProviderId(MetadataProvider.Tvdb);
 | 
	
		
			
				|  |  | -            if (string.IsNullOrEmpty(tvdbIdString))
 | 
	
		
			
				|  |  | -            {
 | 
	
		
			
				|  |  | -                return false;
 | 
	
		
			
				|  |  | -            }
 | 
	
		
			
				|  |  | -
 | 
	
		
			
				|  |  | -            var episodes = await _tvdbClientManager.GetAllEpisodesAsync(
 | 
	
		
			
				|  |  | -                int.Parse(tvdbIdString, CultureInfo.InvariantCulture),
 | 
	
		
			
				|  |  | -                series.GetPreferredMetadataLanguage(),
 | 
	
		
			
				|  |  | -                cancellationToken).ConfigureAwait(false);
 | 
	
		
			
				|  |  | -
 | 
	
		
			
				|  |  | -            var episodeLookup = episodes
 | 
	
		
			
				|  |  | -                .Select(i =>
 | 
	
		
			
				|  |  | -                {
 | 
	
		
			
				|  |  | -                    if (!DateTime.TryParse(i.FirstAired, out var firstAired))
 | 
	
		
			
				|  |  | -                    {
 | 
	
		
			
				|  |  | -                        firstAired = default;
 | 
	
		
			
				|  |  | -                    }
 | 
	
		
			
				|  |  | -
 | 
	
		
			
				|  |  | -                    var seasonNumber = i.AiredSeason.GetValueOrDefault(-1);
 | 
	
		
			
				|  |  | -                    var episodeNumber = i.AiredEpisodeNumber.GetValueOrDefault(-1);
 | 
	
		
			
				|  |  | -                    return (seasonNumber, episodeNumber, firstAired);
 | 
	
		
			
				|  |  | -                })
 | 
	
		
			
				|  |  | -                .Where(i => i.seasonNumber != -1 && i.episodeNumber != -1)
 | 
	
		
			
				|  |  | -                .OrderBy(i => i.seasonNumber)
 | 
	
		
			
				|  |  | -                .ThenBy(i => i.episodeNumber)
 | 
	
		
			
				|  |  | -                .ToList();
 | 
	
		
			
				|  |  | -
 | 
	
		
			
				|  |  | -            var allRecursiveChildren = series.GetRecursiveChildren();
 | 
	
		
			
				|  |  | -
 | 
	
		
			
				|  |  | -            var hasBadData = HasInvalidContent(allRecursiveChildren);
 | 
	
		
			
				|  |  | -
 | 
	
		
			
				|  |  | -            // Be conservative here to avoid creating missing episodes for ones they already have
 | 
	
		
			
				|  |  | -            var addMissingEpisodes = !hasBadData && _libraryManager.GetLibraryOptions(series).ImportMissingEpisodes;
 | 
	
		
			
				|  |  | -
 | 
	
		
			
				|  |  | -            var anySeasonsRemoved = RemoveObsoleteOrMissingSeasons(allRecursiveChildren, episodeLookup);
 | 
	
		
			
				|  |  | -
 | 
	
		
			
				|  |  | -            if (anySeasonsRemoved)
 | 
	
		
			
				|  |  | -            {
 | 
	
		
			
				|  |  | -                // refresh this
 | 
	
		
			
				|  |  | -                allRecursiveChildren = series.GetRecursiveChildren();
 | 
	
		
			
				|  |  | -            }
 | 
	
		
			
				|  |  | -
 | 
	
		
			
				|  |  | -            var anyEpisodesRemoved = RemoveObsoleteOrMissingEpisodes(allRecursiveChildren, episodeLookup, addMissingEpisodes);
 | 
	
		
			
				|  |  | -
 | 
	
		
			
				|  |  | -            if (anyEpisodesRemoved)
 | 
	
		
			
				|  |  | -            {
 | 
	
		
			
				|  |  | -                // refresh this
 | 
	
		
			
				|  |  | -                allRecursiveChildren = series.GetRecursiveChildren();
 | 
	
		
			
				|  |  | -            }
 | 
	
		
			
				|  |  | -
 | 
	
		
			
				|  |  | -            var hasNewEpisodes = false;
 | 
	
		
			
				|  |  | -
 | 
	
		
			
				|  |  | -            if (addNewItems && series.IsMetadataFetcherEnabled(_libraryManager.GetLibraryOptions(series), TvdbSeriesProvider.Current.Name))
 | 
	
		
			
				|  |  | -            {
 | 
	
		
			
				|  |  | -                hasNewEpisodes = await AddMissingEpisodes(series, allRecursiveChildren, addMissingEpisodes, episodeLookup, cancellationToken)
 | 
	
		
			
				|  |  | -                    .ConfigureAwait(false);
 | 
	
		
			
				|  |  | -            }
 | 
	
		
			
				|  |  | -
 | 
	
		
			
				|  |  | -            if (hasNewEpisodes || anySeasonsRemoved || anyEpisodesRemoved)
 | 
	
		
			
				|  |  | -            {
 | 
	
		
			
				|  |  | -                return true;
 | 
	
		
			
				|  |  | -            }
 | 
	
		
			
				|  |  | -
 | 
	
		
			
				|  |  | -            return false;
 | 
	
		
			
				|  |  | -        }
 | 
	
		
			
				|  |  | -
 | 
	
		
			
				|  |  | -        /// <summary>
 | 
	
		
			
				|  |  | -        /// Returns true if a series has any seasons or episodes without season or episode numbers
 | 
	
		
			
				|  |  | -        /// If this data is missing no virtual items will be added in order to prevent possible duplicates.
 | 
	
		
			
				|  |  | -        /// </summary>
 | 
	
		
			
				|  |  | -        private bool HasInvalidContent(IList<BaseItem> allItems)
 | 
	
		
			
				|  |  | -        {
 | 
	
		
			
				|  |  | -            return allItems.OfType<Season>().Any(i => !i.IndexNumber.HasValue) ||
 | 
	
		
			
				|  |  | -                   allItems.OfType<Episode>().Any(i =>
 | 
	
		
			
				|  |  | -                   {
 | 
	
		
			
				|  |  | -                       if (!i.ParentIndexNumber.HasValue)
 | 
	
		
			
				|  |  | -                       {
 | 
	
		
			
				|  |  | -                           return true;
 | 
	
		
			
				|  |  | -                       }
 | 
	
		
			
				|  |  | -
 | 
	
		
			
				|  |  | -                       // You could have episodes under season 0 with no number
 | 
	
		
			
				|  |  | -                       return false;
 | 
	
		
			
				|  |  | -                   });
 | 
	
		
			
				|  |  | -        }
 | 
	
		
			
				|  |  | -
 | 
	
		
			
				|  |  | -        private async Task<bool> AddMissingEpisodes(
 | 
	
		
			
				|  |  | -            Series series,
 | 
	
		
			
				|  |  | -            IEnumerable<BaseItem> allItems,
 | 
	
		
			
				|  |  | -            bool addMissingEpisodes,
 | 
	
		
			
				|  |  | -            IReadOnlyCollection<(int seasonNumber, int episodenumber, DateTime firstAired)> episodeLookup,
 | 
	
		
			
				|  |  | -            CancellationToken cancellationToken)
 | 
	
		
			
				|  |  | -        {
 | 
	
		
			
				|  |  | -            var existingEpisodes = allItems.OfType<Episode>().ToList();
 | 
	
		
			
				|  |  | -
 | 
	
		
			
				|  |  | -            var seasonCounts = episodeLookup.GroupBy(e => e.seasonNumber).ToDictionary(g => g.Key, g => g.Count());
 | 
	
		
			
				|  |  | -
 | 
	
		
			
				|  |  | -            var hasChanges = false;
 | 
	
		
			
				|  |  | -
 | 
	
		
			
				|  |  | -            foreach (var tuple in episodeLookup)
 | 
	
		
			
				|  |  | -            {
 | 
	
		
			
				|  |  | -                if (tuple.seasonNumber <= 0 || tuple.episodenumber <= 0)
 | 
	
		
			
				|  |  | -                {
 | 
	
		
			
				|  |  | -                    // Ignore episode/season zeros
 | 
	
		
			
				|  |  | -                    continue;
 | 
	
		
			
				|  |  | -                }
 | 
	
		
			
				|  |  | -
 | 
	
		
			
				|  |  | -                var existingEpisode = GetExistingEpisode(existingEpisodes, seasonCounts, tuple);
 | 
	
		
			
				|  |  | -
 | 
	
		
			
				|  |  | -                if (existingEpisode != null)
 | 
	
		
			
				|  |  | -                {
 | 
	
		
			
				|  |  | -                    continue;
 | 
	
		
			
				|  |  | -                }
 | 
	
		
			
				|  |  | -
 | 
	
		
			
				|  |  | -                var airDate = tuple.firstAired;
 | 
	
		
			
				|  |  | -
 | 
	
		
			
				|  |  | -                var now = DateTime.UtcNow.AddDays(-UnairedEpisodeThresholdDays);
 | 
	
		
			
				|  |  | -
 | 
	
		
			
				|  |  | -                if ((airDate < now && addMissingEpisodes) || airDate > now)
 | 
	
		
			
				|  |  | -                {
 | 
	
		
			
				|  |  | -                    // tvdb has a lot of nearly blank episodes
 | 
	
		
			
				|  |  | -                    _logger.LogInformation("Creating virtual missing/unaired episode {0} {1}x{2}", series.Name, tuple.seasonNumber, tuple.episodenumber);
 | 
	
		
			
				|  |  | -                    await AddEpisode(series, tuple.seasonNumber, tuple.episodenumber, cancellationToken).ConfigureAwait(false);
 | 
	
		
			
				|  |  | -
 | 
	
		
			
				|  |  | -                    hasChanges = true;
 | 
	
		
			
				|  |  | -                }
 | 
	
		
			
				|  |  | -            }
 | 
	
		
			
				|  |  | -
 | 
	
		
			
				|  |  | -            return hasChanges;
 | 
	
		
			
				|  |  | -        }
 | 
	
		
			
				|  |  | -
 | 
	
		
			
				|  |  | -        /// <summary>
 | 
	
		
			
				|  |  | -        /// Removes the virtual entry after a corresponding physical version has been added.
 | 
	
		
			
				|  |  | -        /// </summary>
 | 
	
		
			
				|  |  | -        private bool RemoveObsoleteOrMissingEpisodes(
 | 
	
		
			
				|  |  | -            IEnumerable<BaseItem> allRecursiveChildren,
 | 
	
		
			
				|  |  | -            IEnumerable<(int seasonNumber, int episodeNumber, DateTime firstAired)> episodeLookup,
 | 
	
		
			
				|  |  | -            bool allowMissingEpisodes)
 | 
	
		
			
				|  |  | -        {
 | 
	
		
			
				|  |  | -            var existingEpisodes = allRecursiveChildren.OfType<Episode>();
 | 
	
		
			
				|  |  | -
 | 
	
		
			
				|  |  | -            var physicalEpisodes = new List<Episode>();
 | 
	
		
			
				|  |  | -            var virtualEpisodes = new List<Episode>();
 | 
	
		
			
				|  |  | -            foreach (var episode in existingEpisodes)
 | 
	
		
			
				|  |  | -            {
 | 
	
		
			
				|  |  | -                if (episode.LocationType == LocationType.Virtual)
 | 
	
		
			
				|  |  | -                {
 | 
	
		
			
				|  |  | -                    virtualEpisodes.Add(episode);
 | 
	
		
			
				|  |  | -                }
 | 
	
		
			
				|  |  | -                else
 | 
	
		
			
				|  |  | -                {
 | 
	
		
			
				|  |  | -                    physicalEpisodes.Add(episode);
 | 
	
		
			
				|  |  | -                }
 | 
	
		
			
				|  |  | -            }
 | 
	
		
			
				|  |  | -
 | 
	
		
			
				|  |  | -            var episodesToRemove = virtualEpisodes
 | 
	
		
			
				|  |  | -                .Where(i =>
 | 
	
		
			
				|  |  | -                {
 | 
	
		
			
				|  |  | -                    if (!i.IndexNumber.HasValue || !i.ParentIndexNumber.HasValue)
 | 
	
		
			
				|  |  | -                    {
 | 
	
		
			
				|  |  | -                        return true;
 | 
	
		
			
				|  |  | -                    }
 | 
	
		
			
				|  |  | -
 | 
	
		
			
				|  |  | -                    var seasonNumber = i.ParentIndexNumber.Value;
 | 
	
		
			
				|  |  | -                    var episodeNumber = i.IndexNumber.Value;
 | 
	
		
			
				|  |  | -
 | 
	
		
			
				|  |  | -                    // If there's a physical episode with the same season and episode number, delete it
 | 
	
		
			
				|  |  | -                    if (physicalEpisodes.Any(p =>
 | 
	
		
			
				|  |  | -                        p.ParentIndexNumber.HasValue && p.ParentIndexNumber.Value == seasonNumber &&
 | 
	
		
			
				|  |  | -                        p.ContainsEpisodeNumber(episodeNumber)))
 | 
	
		
			
				|  |  | -                    {
 | 
	
		
			
				|  |  | -                        return true;
 | 
	
		
			
				|  |  | -                    }
 | 
	
		
			
				|  |  | -
 | 
	
		
			
				|  |  | -                    // If the episode no longer exists in the remote lookup, delete it
 | 
	
		
			
				|  |  | -                    if (!episodeLookup.Any(e => e.seasonNumber == seasonNumber && e.episodeNumber == episodeNumber))
 | 
	
		
			
				|  |  | -                    {
 | 
	
		
			
				|  |  | -                        return true;
 | 
	
		
			
				|  |  | -                    }
 | 
	
		
			
				|  |  | -
 | 
	
		
			
				|  |  | -                    // If it's missing, but not unaired, remove it
 | 
	
		
			
				|  |  | -                    return !allowMissingEpisodes && i.IsMissingEpisode &&
 | 
	
		
			
				|  |  | -                           (!i.PremiereDate.HasValue ||
 | 
	
		
			
				|  |  | -                            i.PremiereDate.Value.ToLocalTime().Date.AddDays(UnairedEpisodeThresholdDays) <
 | 
	
		
			
				|  |  | -                            DateTime.Now.Date);
 | 
	
		
			
				|  |  | -                });
 | 
	
		
			
				|  |  | -
 | 
	
		
			
				|  |  | -            var hasChanges = false;
 | 
	
		
			
				|  |  | -
 | 
	
		
			
				|  |  | -            foreach (var episodeToRemove in episodesToRemove)
 | 
	
		
			
				|  |  | -            {
 | 
	
		
			
				|  |  | -                _libraryManager.DeleteItem(
 | 
	
		
			
				|  |  | -                    episodeToRemove,
 | 
	
		
			
				|  |  | -                    new DeleteOptions
 | 
	
		
			
				|  |  | -                    {
 | 
	
		
			
				|  |  | -                        DeleteFileLocation = true
 | 
	
		
			
				|  |  | -                    },
 | 
	
		
			
				|  |  | -                    false);
 | 
	
		
			
				|  |  | -
 | 
	
		
			
				|  |  | -                hasChanges = true;
 | 
	
		
			
				|  |  | -            }
 | 
	
		
			
				|  |  | -
 | 
	
		
			
				|  |  | -            return hasChanges;
 | 
	
		
			
				|  |  | -        }
 | 
	
		
			
				|  |  | -
 | 
	
		
			
				|  |  | -        /// <summary>
 | 
	
		
			
				|  |  | -        /// Removes the obsolete or missing seasons.
 | 
	
		
			
				|  |  | -        /// </summary>
 | 
	
		
			
				|  |  | -        /// <param name="allRecursiveChildren">All recursive children.</param>
 | 
	
		
			
				|  |  | -        /// <param name="episodeLookup">The episode lookup.</param>
 | 
	
		
			
				|  |  | -        /// <returns><see cref="bool" />.</returns>
 | 
	
		
			
				|  |  | -        private bool RemoveObsoleteOrMissingSeasons(
 | 
	
		
			
				|  |  | -            IList<BaseItem> allRecursiveChildren,
 | 
	
		
			
				|  |  | -            IEnumerable<(int seasonNumber, int episodeNumber, DateTime firstAired)> episodeLookup)
 | 
	
		
			
				|  |  | -        {
 | 
	
		
			
				|  |  | -            var existingSeasons = allRecursiveChildren.OfType<Season>().ToList();
 | 
	
		
			
				|  |  | -
 | 
	
		
			
				|  |  | -            var physicalSeasons = new List<Season>();
 | 
	
		
			
				|  |  | -            var virtualSeasons = new List<Season>();
 | 
	
		
			
				|  |  | -            foreach (var season in existingSeasons)
 | 
	
		
			
				|  |  | -            {
 | 
	
		
			
				|  |  | -                if (season.LocationType == LocationType.Virtual)
 | 
	
		
			
				|  |  | -                {
 | 
	
		
			
				|  |  | -                    virtualSeasons.Add(season);
 | 
	
		
			
				|  |  | -                }
 | 
	
		
			
				|  |  | -                else
 | 
	
		
			
				|  |  | -                {
 | 
	
		
			
				|  |  | -                    physicalSeasons.Add(season);
 | 
	
		
			
				|  |  | -                }
 | 
	
		
			
				|  |  | -            }
 | 
	
		
			
				|  |  | -
 | 
	
		
			
				|  |  | -            var allEpisodes = allRecursiveChildren.OfType<Episode>().ToList();
 | 
	
		
			
				|  |  | -
 | 
	
		
			
				|  |  | -            var seasonsToRemove = virtualSeasons
 | 
	
		
			
				|  |  | -                .Where(i =>
 | 
	
		
			
				|  |  | -                {
 | 
	
		
			
				|  |  | -                    if (i.IndexNumber.HasValue)
 | 
	
		
			
				|  |  | -                    {
 | 
	
		
			
				|  |  | -                        var seasonNumber = i.IndexNumber.Value;
 | 
	
		
			
				|  |  | -
 | 
	
		
			
				|  |  | -                        // If there's a physical season with the same number, delete it
 | 
	
		
			
				|  |  | -                        if (physicalSeasons.Any(p => p.IndexNumber.HasValue && p.IndexNumber.Value == seasonNumber && string.Equals(p.Series.PresentationUniqueKey, i.Series.PresentationUniqueKey, StringComparison.Ordinal)))
 | 
	
		
			
				|  |  | -                        {
 | 
	
		
			
				|  |  | -                            return true;
 | 
	
		
			
				|  |  | -                        }
 | 
	
		
			
				|  |  | -
 | 
	
		
			
				|  |  | -                        // If the season no longer exists in the remote lookup, delete it, but only if an existing episode doesn't require it
 | 
	
		
			
				|  |  | -                        return episodeLookup.All(e => e.seasonNumber != seasonNumber) && allEpisodes.All(s => s.ParentIndexNumber != seasonNumber || s.IsInSeasonFolder);
 | 
	
		
			
				|  |  | -                    }
 | 
	
		
			
				|  |  | -
 | 
	
		
			
				|  |  | -                    // Season does not have a number
 | 
	
		
			
				|  |  | -                    // Remove if there are no episodes directly in series without a season number
 | 
	
		
			
				|  |  | -                    return allEpisodes.All(s => s.ParentIndexNumber.HasValue || s.IsInSeasonFolder);
 | 
	
		
			
				|  |  | -                });
 | 
	
		
			
				|  |  | -
 | 
	
		
			
				|  |  | -            var hasChanges = false;
 | 
	
		
			
				|  |  | -
 | 
	
		
			
				|  |  | -            foreach (var seasonToRemove in seasonsToRemove)
 | 
	
		
			
				|  |  | -            {
 | 
	
		
			
				|  |  | -                _libraryManager.DeleteItem(
 | 
	
		
			
				|  |  | -                    seasonToRemove,
 | 
	
		
			
				|  |  | -                    new DeleteOptions
 | 
	
		
			
				|  |  | -                    {
 | 
	
		
			
				|  |  | -                        DeleteFileLocation = true
 | 
	
		
			
				|  |  | -                    },
 | 
	
		
			
				|  |  | -                    false);
 | 
	
		
			
				|  |  | -
 | 
	
		
			
				|  |  | -                hasChanges = true;
 | 
	
		
			
				|  |  | -            }
 | 
	
		
			
				|  |  | -
 | 
	
		
			
				|  |  | -            return hasChanges;
 | 
	
		
			
				|  |  | -        }
 | 
	
		
			
				|  |  | -
 | 
	
		
			
				|  |  | -        /// <summary>
 | 
	
		
			
				|  |  | -        /// Adds the episode.
 | 
	
		
			
				|  |  | -        /// </summary>
 | 
	
		
			
				|  |  | -        /// <param name="series">The series.</param>
 | 
	
		
			
				|  |  | -        /// <param name="seasonNumber">The season number.</param>
 | 
	
		
			
				|  |  | -        /// <param name="episodeNumber">The episode number.</param>
 | 
	
		
			
				|  |  | -        /// <param name="cancellationToken">The cancellation token.</param>
 | 
	
		
			
				|  |  | -        /// <returns>Task.</returns>
 | 
	
		
			
				|  |  | -        private async Task AddEpisode(Series series, int seasonNumber, int episodeNumber, CancellationToken cancellationToken)
 | 
	
		
			
				|  |  | -        {
 | 
	
		
			
				|  |  | -            var season = series.Children.OfType<Season>()
 | 
	
		
			
				|  |  | -                .FirstOrDefault(i => i.IndexNumber.HasValue && i.IndexNumber.Value == seasonNumber);
 | 
	
		
			
				|  |  | -
 | 
	
		
			
				|  |  | -            if (season == null)
 | 
	
		
			
				|  |  | -            {
 | 
	
		
			
				|  |  | -                var provider = new DummySeasonProvider(_logger, _localization, _libraryManager, _fileSystem);
 | 
	
		
			
				|  |  | -                season = await provider.AddSeason(series, seasonNumber, true, cancellationToken).ConfigureAwait(false);
 | 
	
		
			
				|  |  | -            }
 | 
	
		
			
				|  |  | -
 | 
	
		
			
				|  |  | -            var name = "Episode " + episodeNumber.ToString(CultureInfo.InvariantCulture);
 | 
	
		
			
				|  |  | -
 | 
	
		
			
				|  |  | -            var episode = new Episode
 | 
	
		
			
				|  |  | -            {
 | 
	
		
			
				|  |  | -                Name = name,
 | 
	
		
			
				|  |  | -                IndexNumber = episodeNumber,
 | 
	
		
			
				|  |  | -                ParentIndexNumber = seasonNumber,
 | 
	
		
			
				|  |  | -                Id = _libraryManager.GetNewItemId(
 | 
	
		
			
				|  |  | -                    series.Id + seasonNumber.ToString(CultureInfo.InvariantCulture) + name,
 | 
	
		
			
				|  |  | -                    typeof(Episode)),
 | 
	
		
			
				|  |  | -                IsVirtualItem = true,
 | 
	
		
			
				|  |  | -                SeasonId = season?.Id ?? Guid.Empty,
 | 
	
		
			
				|  |  | -                SeriesId = series.Id
 | 
	
		
			
				|  |  | -            };
 | 
	
		
			
				|  |  | -
 | 
	
		
			
				|  |  | -            season.AddChild(episode, cancellationToken);
 | 
	
		
			
				|  |  | -
 | 
	
		
			
				|  |  | -            await episode.RefreshMetadata(new MetadataRefreshOptions(new DirectoryService(_fileSystem)), cancellationToken).ConfigureAwait(false);
 | 
	
		
			
				|  |  | -        }
 | 
	
		
			
				|  |  | -
 | 
	
		
			
				|  |  | -        /// <summary>
 | 
	
		
			
				|  |  | -        /// Gets the existing episode.
 | 
	
		
			
				|  |  | -        /// </summary>
 | 
	
		
			
				|  |  | -        /// <param name="existingEpisodes">The existing episodes.</param>
 | 
	
		
			
				|  |  | -        /// <param name="seasonCounts"></param>
 | 
	
		
			
				|  |  | -        /// <param name="episodeTuple"></param>
 | 
	
		
			
				|  |  | -        /// <returns>Episode.</returns>
 | 
	
		
			
				|  |  | -        private Episode GetExistingEpisode(
 | 
	
		
			
				|  |  | -            IEnumerable<Episode> existingEpisodes,
 | 
	
		
			
				|  |  | -            IReadOnlyDictionary<int, int> seasonCounts,
 | 
	
		
			
				|  |  | -            (int seasonNumber, int episodeNumber, DateTime firstAired) episodeTuple)
 | 
	
		
			
				|  |  | -        {
 | 
	
		
			
				|  |  | -            var seasonNumber = episodeTuple.seasonNumber;
 | 
	
		
			
				|  |  | -            var episodeNumber = episodeTuple.episodeNumber;
 | 
	
		
			
				|  |  | -
 | 
	
		
			
				|  |  | -            while (true)
 | 
	
		
			
				|  |  | -            {
 | 
	
		
			
				|  |  | -                var episode = GetExistingEpisode(existingEpisodes, seasonNumber, episodeNumber);
 | 
	
		
			
				|  |  | -                if (episode != null)
 | 
	
		
			
				|  |  | -                {
 | 
	
		
			
				|  |  | -                    return episode;
 | 
	
		
			
				|  |  | -                }
 | 
	
		
			
				|  |  | -
 | 
	
		
			
				|  |  | -                seasonNumber--;
 | 
	
		
			
				|  |  | -
 | 
	
		
			
				|  |  | -                if (seasonCounts.ContainsKey(seasonNumber))
 | 
	
		
			
				|  |  | -                {
 | 
	
		
			
				|  |  | -                    episodeNumber += seasonCounts[seasonNumber];
 | 
	
		
			
				|  |  | -                }
 | 
	
		
			
				|  |  | -                else
 | 
	
		
			
				|  |  | -                {
 | 
	
		
			
				|  |  | -                    break;
 | 
	
		
			
				|  |  | -                }
 | 
	
		
			
				|  |  | -            }
 | 
	
		
			
				|  |  | -
 | 
	
		
			
				|  |  | -            return null;
 | 
	
		
			
				|  |  | -        }
 | 
	
		
			
				|  |  | -
 | 
	
		
			
				|  |  | -        private Episode GetExistingEpisode(IEnumerable<Episode> existingEpisodes, int season, int episode)
 | 
	
		
			
				|  |  | -            => existingEpisodes.FirstOrDefault(i => i.ParentIndexNumber == season && i.ContainsEpisodeNumber(episode));
 | 
	
		
			
				|  |  | -    }
 | 
	
		
			
				|  |  | -}
 |