jellyfin-server/MediaBrowser.Providers/Music/AlbumInfoFromSongProvider.cs
2013-08-10 09:22:13 -04:00

143 lines
4.3 KiB
C#

using MediaBrowser.Common.Extensions;
using MediaBrowser.Controller.Configuration;
using MediaBrowser.Controller.Entities;
using MediaBrowser.Controller.Entities.Audio;
using MediaBrowser.Controller.Providers;
using MediaBrowser.Model.Entities;
using MediaBrowser.Model.Logging;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
namespace MediaBrowser.Providers.Music
{
public class AlbumInfoFromSongProvider : BaseMetadataProvider
{
public AlbumInfoFromSongProvider(ILogManager logManager, IServerConfigurationManager configurationManager)
: base(logManager, configurationManager)
{
}
public override bool Supports(BaseItem item)
{
return item is MusicAlbum;
}
protected override bool RefreshOnVersionChange
{
get
{
return true;
}
}
protected override string ProviderVersion
{
get
{
return "1";
}
}
protected override bool NeedsRefreshInternal(BaseItem item, BaseProviderInfo providerInfo)
{
// If song metadata has changed
if (GetComparisonData((MusicAlbum)item) != providerInfo.FileStamp)
{
return true;
}
return base.NeedsRefreshInternal(item, providerInfo);
}
/// <summary>
/// Gets the data.
/// </summary>
/// <param name="album">The album.</param>
/// <returns>Guid.</returns>
private Guid GetComparisonData(MusicAlbum album)
{
var songs = album.RecursiveChildren.OfType<Audio>().ToList();
return GetComparisonData(songs);
}
private Guid GetComparisonData(List<Audio> songs)
{
var albumNames = songs.Select(i => i.AlbumArtist)
.Where(i => !string.IsNullOrEmpty(i))
.Distinct(StringComparer.OrdinalIgnoreCase)
.ToList();
var studios = songs.SelectMany(i => i.Studios)
.Distinct(StringComparer.OrdinalIgnoreCase)
.ToList();
var genres = songs.SelectMany(i => i.Genres)
.Distinct(StringComparer.OrdinalIgnoreCase)
.ToList();
albumNames.AddRange(studios);
albumNames.AddRange(genres);
return string.Join(string.Empty, albumNames.OrderBy(i => i).ToArray()).GetMD5();
}
public override Task<bool> FetchAsync(BaseItem item, bool force, CancellationToken cancellationToken)
{
var album = (MusicAlbum)item;
BaseProviderInfo data;
if (!item.ProviderData.TryGetValue(Id, out data))
{
data = new BaseProviderInfo();
item.ProviderData[Id] = data;
}
var songs = album.RecursiveChildren.OfType<Audio>().ToList();
if (!item.LockedFields.Contains(MetadataFields.Name))
{
var name = songs.Select(i => i.Album).FirstOrDefault(i => !string.IsNullOrEmpty(i));
if (!string.IsNullOrEmpty(name))
{
album.Name = name;
}
}
var year = songs.Select(i => i.ProductionYear ?? 1800).FirstOrDefault(i => i != 1800);
if (year != 1800)
{
album.ProductionYear = year;
}
if (!item.LockedFields.Contains(MetadataFields.Studios))
{
album.Studios = songs.SelectMany(i => i.Studios)
.Distinct(StringComparer.OrdinalIgnoreCase)
.ToList();
}
if (!item.LockedFields.Contains(MetadataFields.Genres))
{
album.Genres = songs.SelectMany(i => i.Genres)
.Distinct(StringComparer.OrdinalIgnoreCase)
.ToList();
}
data.FileStamp = GetComparisonData(songs);
SetLastRefreshed(item, DateTime.UtcNow);
return TrueTaskResult;
}
public override MetadataProviderPriority Priority
{
get { return MetadataProviderPriority.Second; }
}
}
}