jellyfin-server/MediaBrowser.Server.Implementations/Intros/DefaultIntroProvider.cs
2014-11-16 15:44:08 -05:00

423 lines
14 KiB
C#

using MediaBrowser.Common.Configuration;
using MediaBrowser.Common.Security;
using MediaBrowser.Controller.Channels;
using MediaBrowser.Controller.Entities;
using MediaBrowser.Controller.Entities.Movies;
using MediaBrowser.Controller.Entities.TV;
using MediaBrowser.Controller.Library;
using MediaBrowser.Controller.Localization;
using MediaBrowser.Model.Channels;
using MediaBrowser.Model.Configuration;
using MediaBrowser.Model.Entities;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
namespace MediaBrowser.Server.Implementations.Intros
{
public class DefaultIntroProvider : IIntroProvider
{
private readonly ISecurityManager _security;
private readonly IChannelManager _channelManager;
private readonly ILocalizationManager _localization;
private readonly IConfigurationManager _serverConfig;
private readonly ILibraryManager _libraryManager;
public DefaultIntroProvider(ISecurityManager security, IChannelManager channelManager, ILocalizationManager localization, IConfigurationManager serverConfig, ILibraryManager libraryManager)
{
_security = security;
_channelManager = channelManager;
_localization = localization;
_serverConfig = serverConfig;
_libraryManager = libraryManager;
}
public async Task<IEnumerable<IntroInfo>> GetIntros(BaseItem item, User user)
{
var config = GetOptions();
if (item is Movie)
{
if (!config.EnableIntrosForMovies)
{
return new List<IntroInfo>();
}
}
else if (item is Episode)
{
if (!config.EnableIntrosForEpisodes)
{
return new List<IntroInfo>();
}
}
else
{
return new List<IntroInfo>();
}
var ratingLevel = string.IsNullOrWhiteSpace(item.OfficialRating)
? (int?)null
: _localization.GetRatingLevel(item.OfficialRating);
var libaryItems = user.RootFolder.GetRecursiveChildren(user, false)
.ToList();
var random = new Random(Environment.TickCount + Guid.NewGuid().GetHashCode());
var candidates = new List<ItemWithTrailer>();
if (config.EnableIntrosFromMoviesInLibrary)
{
var itemsWithTrailers = libaryItems
.Where(i =>
{
var hasTrailers = i as IHasTrailers;
if (hasTrailers != null && hasTrailers.LocalTrailerIds.Count > 0)
{
if (i is Movie)
{
return !IsDuplicate(item, i);
}
}
return false;
});
candidates.AddRange(itemsWithTrailers.Select(i => new ItemWithTrailer
{
Item = i,
Type = ItemWithTrailerType.ItemWithTrailer,
User = user,
WatchingItem = item,
Random = random
}));
}
var trailerTypes = new List<TrailerType>();
if (config.EnableIntrosFromUpcomingTrailers)
{
trailerTypes.Add(TrailerType.ComingSoonToTheaters);
}
if (config.EnableIntrosFromUpcomingDvdMovies)
{
trailerTypes.Add(TrailerType.ComingSoonToDvd);
}
if (config.EnableIntrosFromUpcomingStreamingMovies)
{
trailerTypes.Add(TrailerType.ComingSoonToStreaming);
}
if (config.EnableIntrosFromSimilarMovies)
{
trailerTypes.Add(TrailerType.Archive);
}
if (trailerTypes.Count > 0 && IsSupporter)
{
var channelTrailers = await _channelManager.GetAllMediaInternal(new AllChannelMediaQuery
{
ContentTypes = new[] { ChannelMediaContentType.MovieExtra },
ExtraTypes = new[] { ExtraType.Trailer },
UserId = user.Id.ToString("N"),
TrailerTypes = trailerTypes.ToArray()
}, CancellationToken.None);
candidates.AddRange(channelTrailers.Items.Select(i => new ItemWithTrailer
{
Item = i,
Type = ItemWithTrailerType.ChannelTrailer,
User = user,
WatchingItem = item,
Random = random
}));
candidates.AddRange(libaryItems.Where(i => i is Trailer).Select(i => new ItemWithTrailer
{
Item = i,
Type = ItemWithTrailerType.LibraryTrailer,
User = user,
WatchingItem = item,
Random = random
}));
}
var customIntros = !string.IsNullOrWhiteSpace(config.CustomIntroPath) ?
GetCustomIntros(item) :
new List<IntroInfo>();
var trailerLimit = config.TrailerLimit;
if (customIntros.Count > 0)
{
trailerLimit--;
}
// Avoid implicitly captured closure
return candidates.Where(i =>
{
if (config.EnableIntrosParentalControl && !FilterByParentalRating(ratingLevel, i.Item))
{
return false;
}
if (!config.EnableIntrosForWatchedContent && i.IsPlayed)
{
return false;
}
return !IsDuplicate(item, i.Item);
})
.OrderByDescending(i => i.Score)
.ThenBy(i => Guid.NewGuid())
.ThenByDescending(i => (i.IsPlayed ? 0 : 1))
.Select(i => i.IntroInfo)
.Take(trailerLimit)
.Concat(customIntros.Take(1));
}
private bool IsDuplicate(BaseItem playingContent, BaseItem test)
{
var id = playingContent.GetProviderId(MetadataProviders.Imdb);
if (!string.IsNullOrWhiteSpace(id) && string.Equals(id, test.GetProviderId(MetadataProviders.Imdb), StringComparison.OrdinalIgnoreCase))
{
return true;
}
id = playingContent.GetProviderId(MetadataProviders.Tmdb);
if (!string.IsNullOrWhiteSpace(id) && string.Equals(id, test.GetProviderId(MetadataProviders.Tmdb), StringComparison.OrdinalIgnoreCase))
{
return true;
}
return false;
}
private CinemaModeConfiguration GetOptions()
{
return _serverConfig.GetConfiguration<CinemaModeConfiguration>("cinemamode");
}
private List<IntroInfo> GetCustomIntros(BaseItem item)
{
try
{
return GetCustomIntroFiles()
.OrderBy(i => Guid.NewGuid())
.Select(i => new IntroInfo
{
Path = i
}).ToList();
}
catch (IOException)
{
return new List<IntroInfo>();
}
}
private IEnumerable<string> GetCustomIntroFiles(CinemaModeConfiguration options = null)
{
options = options ?? GetOptions();
if (string.IsNullOrWhiteSpace(options.CustomIntroPath))
{
return new List<string>();
}
return Directory.EnumerateFiles(options.CustomIntroPath, "*", SearchOption.AllDirectories)
.Where(_libraryManager.IsVideoFile);
}
private bool FilterByParentalRating(int? ratingLevel, BaseItem item)
{
// Only content rated same or lower
if (ratingLevel.HasValue)
{
var level = string.IsNullOrWhiteSpace(item.OfficialRating)
? (int?)null
: _localization.GetRatingLevel(item.OfficialRating);
return level.HasValue && level.Value <= ratingLevel.Value;
}
return true;
}
internal static int GetSimiliarityScore(BaseItem item1, BaseItem item2, Random random)
{
var points = 0;
if (!string.IsNullOrEmpty(item1.OfficialRating) && string.Equals(item1.OfficialRating, item2.OfficialRating, StringComparison.OrdinalIgnoreCase))
{
points += 10;
}
// Find common genres
points += item1.Genres.Where(i => item2.Genres.Contains(i, StringComparer.OrdinalIgnoreCase)).Sum(i => 10);
// Find common tags
points += GetTags(item1).Where(i => GetTags(item2).Contains(i, StringComparer.OrdinalIgnoreCase)).Sum(i => 10);
// Find common keywords
points += GetKeywords(item1).Where(i => GetKeywords(item2).Contains(i, StringComparer.OrdinalIgnoreCase)).Sum(i => 10);
// Find common studios
points += item1.Studios.Where(i => item2.Studios.Contains(i, StringComparer.OrdinalIgnoreCase)).Sum(i => 5);
var item2PeopleNames = item2.People.Select(i => i.Name)
.Distinct(StringComparer.OrdinalIgnoreCase)
.ToDictionary(i => i, StringComparer.OrdinalIgnoreCase);
points += item1.People.Where(i => item2PeopleNames.ContainsKey(i.Name)).Sum(i =>
{
if (string.Equals(i.Type, PersonType.Director, StringComparison.OrdinalIgnoreCase) || string.Equals(i.Role, PersonType.Director, StringComparison.OrdinalIgnoreCase))
{
return 5;
}
if (string.Equals(i.Type, PersonType.Actor, StringComparison.OrdinalIgnoreCase) || string.Equals(i.Role, PersonType.Actor, StringComparison.OrdinalIgnoreCase))
{
return 3;
}
if (string.Equals(i.Type, PersonType.Composer, StringComparison.OrdinalIgnoreCase) || string.Equals(i.Role, PersonType.Composer, StringComparison.OrdinalIgnoreCase))
{
return 3;
}
if (string.Equals(i.Type, PersonType.GuestStar, StringComparison.OrdinalIgnoreCase) || string.Equals(i.Role, PersonType.GuestStar, StringComparison.OrdinalIgnoreCase))
{
return 3;
}
if (string.Equals(i.Type, PersonType.Writer, StringComparison.OrdinalIgnoreCase) || string.Equals(i.Role, PersonType.Writer, StringComparison.OrdinalIgnoreCase))
{
return 2;
}
return 1;
});
// Add some randomization so that you're not always seeing the same ones for a given movie
points += random.Next(0, 50);
return points;
}
private static IEnumerable<string> GetTags(BaseItem item)
{
var hasTags = item as IHasTags;
if (hasTags != null)
{
return hasTags.Tags;
}
return new List<string>();
}
private static IEnumerable<string> GetKeywords(BaseItem item)
{
var hasTags = item as IHasKeywords;
if (hasTags != null)
{
return hasTags.Keywords;
}
return new List<string>();
}
public IEnumerable<string> GetAllIntroFiles()
{
return GetCustomIntroFiles();
}
private bool IsSupporter
{
get { return _security.IsMBSupporter; }
}
public string Name
{
get { return "Default"; }
}
internal class ItemWithTrailer
{
internal BaseItem Item;
internal ItemWithTrailerType Type;
internal User User;
internal BaseItem WatchingItem;
internal Random Random;
private bool? _isPlayed;
public bool IsPlayed
{
get
{
if (!_isPlayed.HasValue)
{
_isPlayed = Item.IsPlayed(User);
}
return _isPlayed.Value;
}
}
private int? _score;
public int Score
{
get
{
if (!_score.HasValue)
{
_score = GetSimiliarityScore(WatchingItem, Item, Random);
}
return _score.Value;
}
}
public IntroInfo IntroInfo
{
get
{
var id = Item.Id;
if (Type == ItemWithTrailerType.ItemWithTrailer)
{
var hasTrailers = Item as IHasTrailers;
if (hasTrailers != null)
{
id = hasTrailers.LocalTrailerIds.FirstOrDefault();
}
}
return new IntroInfo
{
ItemId = id
};
}
}
}
internal enum ItemWithTrailerType
{
LibraryTrailer,
ChannelTrailer,
ItemWithTrailer
}
}
public class CinemaModeConfigurationFactory : IConfigurationFactory
{
public IEnumerable<ConfigurationStore> GetConfigurations()
{
return new[]
{
new ConfigurationStore
{
ConfigurationType = typeof(CinemaModeConfiguration),
Key = "cinemamode"
}
};
}
}
}