jellyfin/MediaBrowser.Api/TvShowsService.cs

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using MediaBrowser.Controller.Dto;
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using MediaBrowser.Controller.Entities;
using MediaBrowser.Controller.Entities.TV;
using MediaBrowser.Controller.Library;
using MediaBrowser.Controller.Persistence;
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using MediaBrowser.Model.Entities;
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using MediaBrowser.Model.Querying;
using ServiceStack.ServiceHost;
using System;
using System.Collections.Generic;
using System.Linq;
namespace MediaBrowser.Api
{
/// <summary>
/// Class GetNextUpEpisodes
/// </summary>
[Route("/Shows/NextUp", "GET")]
[Api(("Gets a list of currently installed plugins"))]
public class GetNextUpEpisodes : IReturn<ItemsResult>
{
/// <summary>
/// Gets or sets the user id.
/// </summary>
/// <value>The user id.</value>
[ApiMember(Name = "UserId", Description = "User Id", IsRequired = true, DataType = "string", ParameterType = "query", Verb = "GET")]
public Guid UserId { get; set; }
/// <summary>
/// Skips over a given number of items within the results. Use for paging.
/// </summary>
/// <value>The start index.</value>
[ApiMember(Name = "StartIndex", Description = "Optional. The record index to start at. All items with a lower index will be dropped from the results.", IsRequired = false, DataType = "int", ParameterType = "query", Verb = "GET")]
public int? StartIndex { get; set; }
/// <summary>
/// The maximum number of items to return
/// </summary>
/// <value>The limit.</value>
[ApiMember(Name = "Limit", Description = "Optional. The maximum number of records to return", IsRequired = false, DataType = "int", ParameterType = "query", Verb = "GET")]
public int? Limit { get; set; }
/// <summary>
/// Fields to return within the items, in addition to basic information
/// </summary>
/// <value>The fields.</value>
[ApiMember(Name = "Fields", Description = "Optional. Specify additional fields of information to return in the output. This allows multiple, comma delimeted. Options: Budget, Chapters, CriticRatingSummary, DateCreated, Genres, HomePageUrl, IndexOptions, MediaStreams, Overview, OverviewHtml, ParentId, Path, People, ProviderIds, PrimaryImageAspectRatio, Revenue, SortName, Studios, Taglines, TrailerUrls", IsRequired = false, DataType = "string", ParameterType = "query", Verb = "GET", AllowMultiple = true)]
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public string Fields { get; set; }
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[ApiMember(Name = "SeriesId", Description = "Optional. Filter by series id", IsRequired = false, DataType = "string", ParameterType = "query", Verb = "GET")]
public string SeriesId { get; set; }
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/// <summary>
/// Gets the item fields.
/// </summary>
/// <returns>IEnumerable{ItemFields}.</returns>
public IEnumerable<ItemFields> GetItemFields()
{
var val = Fields;
if (string.IsNullOrEmpty(val))
{
return new ItemFields[] { };
}
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return val.Split(',').Select(v =>
{
ItemFields value;
if (Enum.TryParse(v, true, out value))
{
return (ItemFields?)value;
}
return null;
}).Where(i => i.HasValue).Select(i => i.Value);
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}
}
[Route("/Shows/{Id}/Similar", "GET")]
[Api(Description = "Finds tv shows similar to a given one.")]
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public class GetSimilarShows : BaseGetSimilarItemsFromItem
{
}
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/// <summary>
/// Class TvShowsService
/// </summary>
public class TvShowsService : BaseApiService
{
/// <summary>
/// The _user manager
/// </summary>
private readonly IUserManager _userManager;
/// <summary>
/// The _user data repository
/// </summary>
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private readonly IUserDataManager _userDataManager;
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/// <summary>
/// The _library manager
/// </summary>
private readonly ILibraryManager _libraryManager;
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private readonly IItemRepository _itemRepo;
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private readonly IDtoService _dtoService;
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/// <summary>
/// Initializes a new instance of the <see cref="TvShowsService" /> class.
/// </summary>
/// <param name="userManager">The user manager.</param>
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/// <param name="userDataManager">The user data repository.</param>
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/// <param name="libraryManager">The library manager.</param>
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public TvShowsService(IUserManager userManager, IUserDataManager userDataManager, ILibraryManager libraryManager, IItemRepository itemRepo, IDtoService dtoService)
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{
_userManager = userManager;
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_userDataManager = userDataManager;
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_libraryManager = libraryManager;
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_itemRepo = itemRepo;
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_dtoService = dtoService;
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}
/// <summary>
/// Gets the specified request.
/// </summary>
/// <param name="request">The request.</param>
/// <returns>System.Object.</returns>
public object Get(GetSimilarShows request)
{
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var result = SimilarItemsHelper.GetSimilarItemsResult(_userManager,
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_itemRepo,
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_libraryManager,
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_userDataManager,
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_dtoService,
Logger,
request, item => item is Series,
SimilarItemsHelper.GetSimiliarityScore);
return ToOptimizedResult(result);
}
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/// <summary>
/// Gets the specified request.
/// </summary>
/// <param name="request">The request.</param>
/// <returns>System.Object.</returns>
public object Get(GetNextUpEpisodes request)
{
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var result = GetNextUpEpisodeItemsResult(request);
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return ToOptimizedResult(result);
}
/// <summary>
/// Gets the next up episodes.
/// </summary>
/// <param name="request">The request.</param>
/// <returns>Task{ItemsResult}.</returns>
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private ItemsResult GetNextUpEpisodeItemsResult(GetNextUpEpisodes request)
{
var user = _userManager.GetUserById(request.UserId);
var itemsList = GetNextUpEpisodes(request)
.ToList();
var pagedItems = ApplyPaging(request, itemsList);
var fields = request.GetItemFields().ToList();
var returnItems = pagedItems.Select(i => _dtoService.GetBaseItemDto(i, fields, user)).ToArray();
return new ItemsResult
{
TotalRecordCount = itemsList.Count,
Items = returnItems
};
}
public IEnumerable<Episode> GetNextUpEpisodes(GetNextUpEpisodes request)
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{
var user = _userManager.GetUserById(request.UserId);
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var items = user.RootFolder
.GetRecursiveChildren(user)
.OfType<Series>();
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// Avoid implicitly captured closure
return GetNextUpEpisodes(request, items);
}
public IEnumerable<Episode> GetNextUpEpisodes(GetNextUpEpisodes request, IEnumerable<Series> series)
{
var user = _userManager.GetUserById(request.UserId);
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// Avoid implicitly captured closure
var currentUser = user;
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return FilterSeries(request, series)
.AsParallel()
.Select(i => GetNextUp(i, currentUser, request).Item1)
.Where(i => i != null)
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.OrderByDescending(i =>
{
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var seriesUserData = _userDataManager.GetUserData(user.Id, i.Series.GetUserDataKey());
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if (seriesUserData.IsFavorite)
{
return 2;
}
if (seriesUserData.Likes.HasValue)
{
return seriesUserData.Likes.Value ? 1 : -1;
}
return 0;
})
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.ThenByDescending(i => i.PremiereDate ?? DateTime.MinValue);
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}
/// <summary>
/// Gets the next up.
/// </summary>
/// <param name="series">The series.</param>
/// <param name="user">The user.</param>
/// <param name="request">The request.</param>
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/// <returns>Task{Episode}.</returns>
private Tuple<Episode, DateTime> GetNextUp(Series series, User user, GetNextUpEpisodes request)
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{
var allEpisodes = series.GetRecursiveChildren(user)
.OfType<Episode>()
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.OrderByDescending(i => i.PremiereDate ?? DateTime.MinValue)
.ThenByDescending(i => i.IndexNumber ?? 0)
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.ToList();
allEpisodes = FilterItems(request, allEpisodes).ToList();
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Episode lastWatched = null;
var lastWatchedDate = DateTime.MinValue;
Episode nextUp = null;
// Go back starting with the most recent episodes
foreach (var episode in allEpisodes)
{
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var userData = _userDataManager.GetUserData(user.Id, episode.GetUserDataKey());
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if (userData.Played)
{
if (lastWatched != null || nextUp == null)
{
break;
}
lastWatched = episode;
lastWatchedDate = userData.LastPlayedDate ?? DateTime.MinValue;
}
else
{
nextUp = episode;
}
}
if (lastWatched != null)
{
return new Tuple<Episode, DateTime>(nextUp, lastWatchedDate);
}
return new Tuple<Episode, DateTime>(null, lastWatchedDate);
}
private IEnumerable<Episode> FilterItems(GetNextUpEpisodes request, IEnumerable<Episode> items)
{
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// Make this configurable when needed
items = items.Where(i => i.LocationType != LocationType.Virtual);
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return items;
}
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private IEnumerable<Series> FilterSeries(GetNextUpEpisodes request, IEnumerable<Series> items)
{
if (!string.IsNullOrWhiteSpace(request.SeriesId))
{
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var id = new Guid(request.SeriesId);
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items = items.Where(i => i.Id == id);
}
return items;
}
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/// <summary>
/// Applies the paging.
/// </summary>
/// <param name="request">The request.</param>
/// <param name="items">The items.</param>
/// <returns>IEnumerable{BaseItem}.</returns>
private IEnumerable<BaseItem> ApplyPaging(GetNextUpEpisodes request, IEnumerable<BaseItem> items)
{
// Start at
if (request.StartIndex.HasValue)
{
items = items.Skip(request.StartIndex.Value);
}
// Return limit
if (request.Limit.HasValue)
{
items = items.Take(request.Limit.Value);
}
return items;
}
}
}