jellyfin/Emby.Server.Implementations/TV/TVSeriesManager.cs
2016-11-21 12:17:26 -05:00

225 lines
8.0 KiB
C#

using MediaBrowser.Controller.Entities;
using MediaBrowser.Controller.Entities.TV;
using MediaBrowser.Controller.Library;
using MediaBrowser.Controller.TV;
using MediaBrowser.Model.Entities;
using MediaBrowser.Model.Querying;
using System;
using System.Collections.Generic;
using System.Linq;
using MediaBrowser.Controller.Configuration;
namespace Emby.Server.Implementations.TV
{
public class TVSeriesManager : ITVSeriesManager
{
private readonly IUserManager _userManager;
private readonly IUserDataManager _userDataManager;
private readonly ILibraryManager _libraryManager;
private readonly IServerConfigurationManager _config;
public TVSeriesManager(IUserManager userManager, IUserDataManager userDataManager, ILibraryManager libraryManager, IServerConfigurationManager config)
{
_userManager = userManager;
_userDataManager = userDataManager;
_libraryManager = libraryManager;
_config = config;
}
public QueryResult<BaseItem> GetNextUp(NextUpQuery request)
{
var user = _userManager.GetUserById(request.UserId);
if (user == null)
{
throw new ArgumentException("User not found");
}
var parentIdGuid = string.IsNullOrWhiteSpace(request.ParentId) ? (Guid?)null : new Guid(request.ParentId);
string presentationUniqueKey = null;
int? limit = null;
if (!string.IsNullOrWhiteSpace(request.SeriesId))
{
var series = _libraryManager.GetItemById(request.SeriesId);
if (series != null)
{
presentationUniqueKey = GetUniqueSeriesKey(series);
limit = 1;
}
}
if (string.IsNullOrWhiteSpace(presentationUniqueKey) && limit.HasValue)
{
limit = limit.Value + 10;
}
var items = _libraryManager.GetItemList(new InternalItemsQuery(user)
{
IncludeItemTypes = new[] { typeof(Series).Name },
SortOrder = SortOrder.Ascending,
PresentationUniqueKey = presentationUniqueKey,
Limit = limit,
ParentId = parentIdGuid,
Recursive = true
}).Cast<Series>();
// Avoid implicitly captured closure
var episodes = GetNextUpEpisodes(request, user, items);
return GetResult(episodes, null, request);
}
public QueryResult<BaseItem> GetNextUp(NextUpQuery request, List<Folder> parentsFolders)
{
var user = _userManager.GetUserById(request.UserId);
if (user == null)
{
throw new ArgumentException("User not found");
}
string presentationUniqueKey = null;
int? limit = null;
if (!string.IsNullOrWhiteSpace(request.SeriesId))
{
var series = _libraryManager.GetItemById(request.SeriesId);
if (series != null)
{
presentationUniqueKey = GetUniqueSeriesKey(series);
limit = 1;
}
}
if (string.IsNullOrWhiteSpace(presentationUniqueKey) && limit.HasValue)
{
limit = limit.Value + 10;
}
var items = _libraryManager.GetItemList(new InternalItemsQuery(user)
{
IncludeItemTypes = new[] { typeof(Series).Name },
SortOrder = SortOrder.Ascending,
PresentationUniqueKey = presentationUniqueKey,
Limit = limit
}, parentsFolders.Cast<BaseItem>().ToList()).Cast<Series>();
// Avoid implicitly captured closure
var episodes = GetNextUpEpisodes(request, user, items);
return GetResult(episodes, null, request);
}
public IEnumerable<Episode> GetNextUpEpisodes(NextUpQuery request, User user, IEnumerable<Series> series)
{
// Avoid implicitly captured closure
var currentUser = user;
var allNextUp = series
.Select(i => GetNextUp(i, currentUser))
// Include if an episode was found, and either the series is not unwatched or the specific series was requested
.OrderByDescending(i => i.Item1)
.ToList();
// If viewing all next up for all series, remove first episodes
if (string.IsNullOrWhiteSpace(request.SeriesId))
{
var withoutFirstEpisode = allNextUp
.Where(i => i.Item1 != DateTime.MinValue)
.ToList();
// But if that returns empty, keep those first episodes (avoid completely empty view)
if (withoutFirstEpisode.Count > 0)
{
allNextUp = withoutFirstEpisode;
}
}
return allNextUp
.Select(i => i.Item2())
.Where(i => i != null)
.Take(request.Limit ?? int.MaxValue);
}
private string GetUniqueSeriesKey(BaseItem series)
{
return series.GetPresentationUniqueKey();
}
/// <summary>
/// Gets the next up.
/// </summary>
/// <param name="series">The series.</param>
/// <param name="user">The user.</param>
/// <returns>Task{Episode}.</returns>
private Tuple<DateTime, Func<Episode>> GetNextUp(Series series, User user)
{
var lastWatchedEpisode = _libraryManager.GetItemList(new InternalItemsQuery(user)
{
AncestorWithPresentationUniqueKey = GetUniqueSeriesKey(series),
IncludeItemTypes = new[] { typeof(Episode).Name },
SortBy = new[] { ItemSortBy.SortName },
SortOrder = SortOrder.Descending,
IsPlayed = true,
Limit = 1,
ParentIndexNumberNotEquals = 0
}).FirstOrDefault();
Func<Episode> getEpisode = () =>
{
return _libraryManager.GetItemList(new InternalItemsQuery(user)
{
AncestorWithPresentationUniqueKey = GetUniqueSeriesKey(series),
IncludeItemTypes = new[] { typeof(Episode).Name },
SortBy = new[] { ItemSortBy.SortName },
SortOrder = SortOrder.Ascending,
Limit = 1,
IsPlayed = false,
IsVirtualItem = false,
ParentIndexNumberNotEquals = 0,
MinSortName = lastWatchedEpisode == null ? null : lastWatchedEpisode.SortName
}).Cast<Episode>().FirstOrDefault();
};
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 QueryResult<BaseItem> GetResult(IEnumerable<BaseItem> items, int? totalRecordLimit, NextUpQuery query)
{
var itemsArray = totalRecordLimit.HasValue ? items.Take(totalRecordLimit.Value).ToArray() : items.ToArray();
var totalCount = itemsArray.Length;
if (query.Limit.HasValue)
{
itemsArray = itemsArray.Skip(query.StartIndex ?? 0).Take(query.Limit.Value).ToArray();
}
else if (query.StartIndex.HasValue)
{
itemsArray = itemsArray.Skip(query.StartIndex.Value).ToArray();
}
return new QueryResult<BaseItem>
{
TotalRecordCount = totalCount,
Items = itemsArray
};
}
}
}