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334 lines
13 KiB
334 lines
13 KiB
#nullable disable
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#pragma warning disable CS1591
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using Jellyfin.Data.Entities;
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using Jellyfin.Data.Enums;
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using MediaBrowser.Controller.Configuration;
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using MediaBrowser.Controller.Dto;
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using MediaBrowser.Controller.Entities;
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using MediaBrowser.Controller.Library;
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using MediaBrowser.Controller.TV;
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using MediaBrowser.Model.Querying;
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using Episode = MediaBrowser.Controller.Entities.TV.Episode;
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using Series = MediaBrowser.Controller.Entities.TV.Series;
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namespace Emby.Server.Implementations.TV
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{
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public class TVSeriesManager : ITVSeriesManager
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{
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private readonly IUserManager _userManager;
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private readonly IUserDataManager _userDataManager;
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private readonly ILibraryManager _libraryManager;
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private readonly IServerConfigurationManager _configurationManager;
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public TVSeriesManager(IUserManager userManager, IUserDataManager userDataManager, ILibraryManager libraryManager, IServerConfigurationManager configurationManager)
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{
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_userManager = userManager;
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_userDataManager = userDataManager;
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_libraryManager = libraryManager;
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_configurationManager = configurationManager;
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}
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public QueryResult<BaseItem> GetNextUp(NextUpQuery query, DtoOptions options)
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{
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var user = _userManager.GetUserById(query.UserId);
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if (user == null)
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{
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throw new ArgumentException("User not found");
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}
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string presentationUniqueKey = null;
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if (query.SeriesId.HasValue && !query.SeriesId.Value.Equals(default))
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{
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if (_libraryManager.GetItemById(query.SeriesId.Value) is Series series)
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{
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presentationUniqueKey = GetUniqueSeriesKey(series);
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}
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}
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if (!string.IsNullOrEmpty(presentationUniqueKey))
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{
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return GetResult(GetNextUpEpisodes(query, user, new[] { presentationUniqueKey }, options), query);
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}
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BaseItem[] parents;
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if (query.ParentId.HasValue)
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{
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var parent = _libraryManager.GetItemById(query.ParentId.Value);
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if (parent != null)
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{
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parents = new[] { parent };
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}
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else
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{
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parents = Array.Empty<BaseItem>();
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}
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}
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else
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{
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parents = _libraryManager.GetUserRootFolder().GetChildren(user, true)
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.Where(i => i is Folder)
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.Where(i => !user.GetPreferenceValues<Guid>(PreferenceKind.LatestItemExcludes).Contains(i.Id))
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.ToArray();
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}
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return GetNextUp(query, parents, options);
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}
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public QueryResult<BaseItem> GetNextUp(NextUpQuery request, BaseItem[] parentsFolders, DtoOptions options)
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{
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var user = _userManager.GetUserById(request.UserId);
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if (user == null)
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{
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throw new ArgumentException("User not found");
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}
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string presentationUniqueKey = null;
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int? limit = null;
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if (request.SeriesId.HasValue && !request.SeriesId.Value.Equals(default))
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{
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if (_libraryManager.GetItemById(request.SeriesId.Value) is Series series)
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{
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presentationUniqueKey = GetUniqueSeriesKey(series);
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limit = 1;
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}
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}
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if (!string.IsNullOrEmpty(presentationUniqueKey))
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{
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return GetResult(GetNextUpEpisodes(request, user, new[] { presentationUniqueKey }, options), request);
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}
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if (limit.HasValue)
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{
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limit = limit.Value + 10;
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}
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var items = _libraryManager
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.GetItemList(
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new InternalItemsQuery(user)
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{
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IncludeItemTypes = new[] { BaseItemKind.Episode },
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OrderBy = new[] { (ItemSortBy.DatePlayed, SortOrder.Descending) },
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SeriesPresentationUniqueKey = presentationUniqueKey,
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Limit = limit,
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DtoOptions = new DtoOptions { Fields = new[] { ItemFields.SeriesPresentationUniqueKey }, EnableImages = false },
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GroupBySeriesPresentationUniqueKey = true
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},
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parentsFolders.ToList())
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.Cast<Episode>()
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.Where(episode => !string.IsNullOrEmpty(episode.SeriesPresentationUniqueKey))
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.Select(GetUniqueSeriesKey)
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.ToList();
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// Avoid implicitly captured closure
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var episodes = GetNextUpEpisodes(request, user, items, options);
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return GetResult(episodes, request);
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}
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private IEnumerable<Episode> GetNextUpEpisodes(NextUpQuery request, User user, IReadOnlyList<string> seriesKeys, DtoOptions dtoOptions)
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{
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var allNextUp = seriesKeys.Select(i => GetNextUp(i, user, dtoOptions, false));
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if (request.EnableRewatching)
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{
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allNextUp = allNextUp.Concat(
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seriesKeys.Select(i => GetNextUp(i, user, dtoOptions, true)))
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.OrderByDescending(i => i.LastWatchedDate);
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}
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// If viewing all next up for all series, remove first episodes
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// But if that returns empty, keep those first episodes (avoid completely empty view)
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var alwaysEnableFirstEpisode = request.SeriesId.HasValue && !request.SeriesId.Value.Equals(default);
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var anyFound = false;
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return allNextUp
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.Where(i =>
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{
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if (request.DisableFirstEpisode)
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{
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return i.LastWatchedDate != DateTime.MinValue;
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}
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if (alwaysEnableFirstEpisode || (i.LastWatchedDate != DateTime.MinValue && i.LastWatchedDate.Date >= request.NextUpDateCutoff))
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{
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anyFound = true;
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return true;
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}
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return !anyFound && i.LastWatchedDate == DateTime.MinValue;
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})
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.Select(i => i.GetEpisodeFunction())
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.Where(i => i != null);
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}
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private static string GetUniqueSeriesKey(Episode episode)
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{
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return episode.SeriesPresentationUniqueKey;
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}
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private static string GetUniqueSeriesKey(Series series)
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{
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return series.GetPresentationUniqueKey();
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}
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/// <summary>
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/// Gets the next up.
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/// </summary>
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/// <returns>Task{Episode}.</returns>
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private (DateTime LastWatchedDate, Func<Episode> GetEpisodeFunction) GetNextUp(string seriesKey, User user, DtoOptions dtoOptions, bool rewatching)
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{
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var lastQuery = new InternalItemsQuery(user)
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{
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AncestorWithPresentationUniqueKey = null,
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SeriesPresentationUniqueKey = seriesKey,
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IncludeItemTypes = new[] { BaseItemKind.Episode },
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OrderBy = new[] { (ItemSortBy.ParentIndexNumber, SortOrder.Descending), (ItemSortBy.IndexNumber, SortOrder.Descending) },
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IsPlayed = true,
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Limit = 1,
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ParentIndexNumberNotEquals = 0,
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DtoOptions = new DtoOptions
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{
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Fields = new[] { ItemFields.SortName },
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EnableImages = false
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}
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};
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if (rewatching)
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{
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// find last watched by date played, not by newest episode watched
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lastQuery.OrderBy = new[] { (ItemSortBy.DatePlayed, SortOrder.Descending), (ItemSortBy.ParentIndexNumber, SortOrder.Descending), (ItemSortBy.IndexNumber, SortOrder.Descending) };
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}
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var lastWatchedEpisode = _libraryManager.GetItemList(lastQuery).Cast<Episode>().FirstOrDefault();
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Episode GetEpisode()
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{
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var nextQuery = new InternalItemsQuery(user)
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{
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AncestorWithPresentationUniqueKey = null,
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SeriesPresentationUniqueKey = seriesKey,
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IncludeItemTypes = new[] { BaseItemKind.Episode },
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OrderBy = new[] { (ItemSortBy.ParentIndexNumber, SortOrder.Ascending), (ItemSortBy.IndexNumber, SortOrder.Ascending) },
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Limit = 1,
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IsPlayed = rewatching,
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IsVirtualItem = false,
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ParentIndexNumberNotEquals = 0,
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DtoOptions = dtoOptions,
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MinIndexNumber = lastWatchedEpisode?.IndexNumberEnd ?? lastWatchedEpisode?.IndexNumber,
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MinParentIndexNumber = lastWatchedEpisode?.ParentIndexNumber
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};
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Episode nextEpisode;
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if (rewatching)
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{
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nextQuery.Limit = 2;
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// get watched episode after most recently watched
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nextEpisode = _libraryManager.GetItemList(nextQuery).Cast<Episode>().ElementAtOrDefault(1);
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}
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else
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{
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nextEpisode = _libraryManager.GetItemList(nextQuery).Cast<Episode>().FirstOrDefault();
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}
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if (_configurationManager.Configuration.DisplaySpecialsWithinSeasons)
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{
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var consideredEpisodes = _libraryManager.GetItemList(new InternalItemsQuery(user)
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{
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AncestorWithPresentationUniqueKey = null,
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SeriesPresentationUniqueKey = seriesKey,
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ParentIndexNumber = 0,
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IncludeItemTypes = new[] { BaseItemKind.Episode },
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IsPlayed = rewatching,
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IsVirtualItem = false,
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DtoOptions = dtoOptions
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})
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.Cast<Episode>()
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.Where(episode => episode.AirsBeforeSeasonNumber != null || episode.AirsAfterSeasonNumber != null)
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.ToList();
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if (lastWatchedEpisode != null)
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{
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// Last watched episode is added, because there could be specials that aired before the last watched episode
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consideredEpisodes.Add(lastWatchedEpisode);
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}
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if (nextEpisode != null)
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{
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consideredEpisodes.Add(nextEpisode);
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}
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var sortedConsideredEpisodes = _libraryManager.Sort(consideredEpisodes, user, new[] { (ItemSortBy.AiredEpisodeOrder, SortOrder.Ascending) })
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.Cast<Episode>();
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if (lastWatchedEpisode != null)
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{
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sortedConsideredEpisodes = sortedConsideredEpisodes.SkipWhile(episode => !episode.Id.Equals(lastWatchedEpisode.Id)).Skip(1);
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}
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nextEpisode = sortedConsideredEpisodes.FirstOrDefault();
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}
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if (nextEpisode != null)
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{
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var userData = _userDataManager.GetUserData(user, nextEpisode);
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if (userData.PlaybackPositionTicks > 0)
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{
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return null;
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}
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}
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return nextEpisode;
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}
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if (lastWatchedEpisode != null)
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{
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var userData = _userDataManager.GetUserData(user, lastWatchedEpisode);
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var lastWatchedDate = userData.LastPlayedDate ?? DateTime.MinValue.AddDays(1);
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return (lastWatchedDate, GetEpisode);
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}
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// Return the first episode
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return (DateTime.MinValue, GetEpisode);
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}
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private static QueryResult<BaseItem> GetResult(IEnumerable<BaseItem> items, NextUpQuery query)
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{
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int totalCount = 0;
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if (query.EnableTotalRecordCount)
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{
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var list = items.ToList();
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totalCount = list.Count;
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items = list;
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}
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if (query.StartIndex.HasValue)
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{
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items = items.Skip(query.StartIndex.Value);
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}
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if (query.Limit.HasValue)
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{
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items = items.Take(query.Limit.Value);
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}
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return new QueryResult<BaseItem>(
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query.StartIndex,
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totalCount,
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items.ToArray());
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}
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}
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}
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