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jellyfin/Emby.Server.Implementations/TV/TVSeriesManager.cs

343 lines
12 KiB

#nullable disable
#pragma warning disable CS1591
using System;
using System.Collections.Generic;
using System.Linq;
using Jellyfin.Data.Entities;
using Jellyfin.Data.Enums;
using MediaBrowser.Controller.Configuration;
using MediaBrowser.Controller.Dto;
using MediaBrowser.Controller.Entities;
using MediaBrowser.Controller.Library;
using MediaBrowser.Controller.TV;
using MediaBrowser.Model.Querying;
using Episode = MediaBrowser.Controller.Entities.TV.Episode;
using Series = MediaBrowser.Controller.Entities.TV.Series;
namespace Emby.Server.Implementations.TV
{
public class TVSeriesManager : ITVSeriesManager
{
private readonly IUserManager _userManager;
private readonly IUserDataManager _userDataManager;
private readonly ILibraryManager _libraryManager;
private readonly IServerConfigurationManager _configurationManager;
public TVSeriesManager(IUserManager userManager, IUserDataManager userDataManager, ILibraryManager libraryManager, IServerConfigurationManager configurationManager)
{
_userManager = userManager;
_userDataManager = userDataManager;
_libraryManager = libraryManager;
_configurationManager = configurationManager;
}
public QueryResult<BaseItem> GetNextUp(NextUpQuery query, DtoOptions options)
{
var user = _userManager.GetUserById(query.UserId);
if (user == null)
{
throw new ArgumentException("User not found");
}
string presentationUniqueKey = null;
if (!string.IsNullOrEmpty(query.SeriesId))
{
if (_libraryManager.GetItemById(query.SeriesId) is Series series)
{
presentationUniqueKey = GetUniqueSeriesKey(series);
}
}
if (!string.IsNullOrEmpty(presentationUniqueKey))
{
return GetResult(GetNextUpEpisodes(query, user, new[] { presentationUniqueKey }, options), query);
}
BaseItem[] parents;
if (query.ParentId.HasValue)
{
var parent = _libraryManager.GetItemById(query.ParentId.Value);
if (parent != null)
{
parents = new[] { parent };
}
else
{
parents = Array.Empty<BaseItem>();
}
}
else
{
parents = _libraryManager.GetUserRootFolder().GetChildren(user, true)
.Where(i => i is Folder)
.Where(i => !user.GetPreferenceValues<Guid>(PreferenceKind.LatestItemExcludes).Contains(i.Id))
.ToArray();
}
return GetNextUp(query, parents, options);
}
public QueryResult<BaseItem> GetNextUp(NextUpQuery request, BaseItem[] parentsFolders, DtoOptions options)
{
var user = _userManager.GetUserById(request.UserId);
if (user == null)
{
throw new ArgumentException("User not found");
}
string presentationUniqueKey = null;
int? limit = null;
if (!string.IsNullOrEmpty(request.SeriesId))
{
if (_libraryManager.GetItemById(request.SeriesId) is Series series)
{
presentationUniqueKey = GetUniqueSeriesKey(series);
limit = 1;
}
}
if (!string.IsNullOrEmpty(presentationUniqueKey))
{
return GetResult(GetNextUpEpisodes(request, user, new[] { presentationUniqueKey }, options), request);
}
if (limit.HasValue)
{
limit = limit.Value + 10;
}
var items = _libraryManager
.GetItemList(
new InternalItemsQuery(user)
{
IncludeItemTypes = new[] { BaseItemKind.Episode },
OrderBy = new[] { (ItemSortBy.DatePlayed, SortOrder.Descending) },
SeriesPresentationUniqueKey = presentationUniqueKey,
Limit = limit,
DtoOptions = new DtoOptions { Fields = new[] { ItemFields.SeriesPresentationUniqueKey }, EnableImages = false },
GroupBySeriesPresentationUniqueKey = true
},
parentsFolders.ToList())
.Cast<Episode>()
.Where(episode => !string.IsNullOrEmpty(episode.SeriesPresentationUniqueKey))
.Select(GetUniqueSeriesKey)
.ToList();
// Avoid implicitly captured closure
var episodes = GetNextUpEpisodes(request, user, items, options);
return GetResult(episodes, request);
}
public IEnumerable<Episode> GetNextUpEpisodes(NextUpQuery request, User user, IReadOnlyList<string> seriesKeys, DtoOptions dtoOptions)
{
// Avoid implicitly captured closure
var currentUser = user;
var allNextUp = seriesKeys
.Select(i => GetNextUp(i, currentUser, dtoOptions, false));
if (request.EnableRewatching)
{
allNextUp = allNextUp.Concat(
seriesKeys.Select(i => GetNextUp(i, currentUser, dtoOptions, true))
)
.OrderByDescending(i => i.Item1);
}
// If viewing all next up for all series, remove first episodes
// But if that returns empty, keep those first episodes (avoid completely empty view)
var alwaysEnableFirstEpisode = !string.IsNullOrEmpty(request.SeriesId);
var anyFound = false;
return allNextUp
.Where(i =>
{
if (request.DisableFirstEpisode)
{
return i.Item1 != DateTime.MinValue;
}
if (alwaysEnableFirstEpisode || (i.Item1 != DateTime.MinValue && i.Item1.Date >= request.NextUpDateCutoff))
{
anyFound = true;
return true;
}
if (!anyFound && i.Item1 == DateTime.MinValue)
{
return true;
}
return false;
})
.Select(i => i.Item2())
.Where(i => i != null);
}
private static string GetUniqueSeriesKey(Episode episode)
{
return episode.SeriesPresentationUniqueKey;
}
private static string GetUniqueSeriesKey(Series series)
{
return series.GetPresentationUniqueKey();
}
/// <summary>
/// Gets the next up.
/// </summary>
/// <returns>Task{Episode}.</returns>
private Tuple<DateTime, Func<Episode>> GetNextUp(string seriesKey, User user, DtoOptions dtoOptions, bool rewatching)
{
var lastQuery = new InternalItemsQuery(user)
{
AncestorWithPresentationUniqueKey = null,
SeriesPresentationUniqueKey = seriesKey,
IncludeItemTypes = new[] { BaseItemKind.Episode },
OrderBy = new[] { (ItemSortBy.SortName, SortOrder.Descending) },
IsPlayed = true,
Limit = 1,
ParentIndexNumberNotEquals = 0,
DtoOptions = new DtoOptions
{
Fields = new[] { ItemFields.SortName },
EnableImages = false
}
};
if (rewatching)
{
// find last watched by date played, not by newest episode watched
lastQuery.OrderBy = new[] { (ItemSortBy.DatePlayed, SortOrder.Descending) };
}
var lastWatchedEpisode = _libraryManager.GetItemList(lastQuery).Cast<Episode>().FirstOrDefault();
Func<Episode> getEpisode = () =>
{
var nextQuery = new InternalItemsQuery(user)
{
AncestorWithPresentationUniqueKey = null,
SeriesPresentationUniqueKey = seriesKey,
IncludeItemTypes = new[] { BaseItemKind.Episode },
OrderBy = new[] { (ItemSortBy.SortName, SortOrder.Ascending) },
Limit = 1,
IsPlayed = rewatching,
IsVirtualItem = false,
ParentIndexNumberNotEquals = 0,
MinSortName = lastWatchedEpisode?.SortName,
DtoOptions = dtoOptions
};
Episode nextEpisode;
if (rewatching)
{
nextQuery.Limit = 2;
// get watched episode after most recently watched
nextEpisode = _libraryManager.GetItemList(nextQuery).Cast<Episode>().ElementAtOrDefault(1);
}
else
{
nextEpisode = _libraryManager.GetItemList(nextQuery).Cast<Episode>().FirstOrDefault();
}
if (_configurationManager.Configuration.DisplaySpecialsWithinSeasons)
{
var consideredEpisodes = _libraryManager.GetItemList(new InternalItemsQuery(user)
{
AncestorWithPresentationUniqueKey = null,
SeriesPresentationUniqueKey = seriesKey,
ParentIndexNumber = 0,
IncludeItemTypes = new[] { BaseItemKind.Episode },
IsPlayed = rewatching,
IsVirtualItem = false,
DtoOptions = dtoOptions
})
.Cast<Episode>()
.Where(episode => episode.AirsBeforeSeasonNumber != null || episode.AirsAfterSeasonNumber != null)
.ToList();
if (lastWatchedEpisode != null)
{
// Last watched episode is added, because there could be specials that aired before the last watched episode
consideredEpisodes.Add(lastWatchedEpisode);
}
if (nextEpisode != null)
{
consideredEpisodes.Add(nextEpisode);
}
var sortedConsideredEpisodes = _libraryManager.Sort(consideredEpisodes, user, new[] { (ItemSortBy.AiredEpisodeOrder, SortOrder.Ascending) })
.Cast<Episode>();
if (lastWatchedEpisode != null)
{
sortedConsideredEpisodes = sortedConsideredEpisodes.SkipWhile(episode => episode.Id != lastWatchedEpisode.Id).Skip(1);
}
nextEpisode = sortedConsideredEpisodes.FirstOrDefault();
}
if (nextEpisode != null)
{
var userData = _userDataManager.GetUserData(user, nextEpisode);
if (userData.PlaybackPositionTicks > 0)
{
return null;
}
}
return nextEpisode;
};
if (lastWatchedEpisode != null)
{
var userData = _userDataManager.GetUserData(user, lastWatchedEpisode);
var lastWatchedDate = userData.LastPlayedDate ?? DateTime.MinValue.AddDays(1);
return new Tuple<DateTime, Func<Episode>>(lastWatchedDate, getEpisode);
}
// Return the first episode
return new Tuple<DateTime, Func<Episode>>(DateTime.MinValue, getEpisode);
}
private static QueryResult<BaseItem> GetResult(IEnumerable<BaseItem> items, NextUpQuery query)
{
int totalCount = 0;
if (query.EnableTotalRecordCount)
{
var list = items.ToList();
totalCount = list.Count;
items = list;
}
if (query.StartIndex.HasValue)
{
items = items.Skip(query.StartIndex.Value);
}
if (query.Limit.HasValue)
{
items = items.Take(query.Limit.Value);
}
return new QueryResult<BaseItem>(
query.StartIndex,
totalCount,
items.ToArray());
}
}
}