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jellyfin/MediaBrowser.Providers/Music/AlbumDynamicInfoProvider.cs

104 lines
3.5 KiB

using MediaBrowser.Controller.Configuration;
using MediaBrowser.Controller.Entities;
using MediaBrowser.Controller.Entities.Audio;
using MediaBrowser.Controller.Providers;
using MediaBrowser.Model.Logging;
using System;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
namespace MediaBrowser.Providers.Music
{
/// <summary>
/// Class MusicAlbumDynamicInfoProvider
/// </summary>
public class AlbumDynamicInfoProvider : BaseMetadataProvider, IDynamicInfoProvider
{
/// <summary>
/// Initializes a new instance of the <see cref="BaseMetadataProvider" /> class.
/// </summary>
/// <param name="logManager">The log manager.</param>
/// <param name="configurationManager">The configuration manager.</param>
public AlbumDynamicInfoProvider(ILogManager logManager, IServerConfigurationManager configurationManager)
: base(logManager, configurationManager)
{
}
/// <summary>
/// Supportses the specified item.
/// </summary>
/// <param name="item">The item.</param>
/// <returns><c>true</c> if XXXX, <c>false</c> otherwise</returns>
public override bool Supports(BaseItem item)
{
return item is MusicAlbum;
}
/// <summary>
/// Needses the refresh internal.
/// </summary>
/// <param name="item">The item.</param>
/// <param name="providerInfo">The provider info.</param>
/// <returns><c>true</c> if XXXX, <c>false</c> otherwise</returns>
protected override bool NeedsRefreshInternal(BaseItem item, BaseProviderInfo providerInfo)
{
return true;
}
/// <summary>
/// Fetches metadata and returns true or false indicating if any work that requires persistence was done
/// </summary>
/// <param name="item">The item.</param>
/// <param name="force">if set to <c>true</c> [force].</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>Task{System.Boolean}.</returns>
public override Task<bool> FetchAsync(BaseItem item, bool force, CancellationToken cancellationToken)
{
var album = (MusicAlbum)item;
var songs = album.RecursiveChildren
.OfType<Audio>()
.ToList();
album.AlbumArtist = songs
.Select(i => i.AlbumArtist)
.FirstOrDefault(i => !string.IsNullOrEmpty(i));
album.Artists = songs.SelectMany(i => i.Artists)
.Distinct(StringComparer.OrdinalIgnoreCase)
.ToList();
var date = songs.Select(i => i.PremiereDate)
.FirstOrDefault(i => i.HasValue);
if (date.HasValue)
{
album.PremiereDate = date.Value;
album.ProductionYear = date.Value.Year;
}
else
{
var year = songs.Select(i => i.ProductionYear ?? 1800).FirstOrDefault(i => i != 1800);
if (year != 1800)
{
album.ProductionYear = year;
}
}
// Don't save to the db
return FalseTaskResult;
}
/// <summary>
/// Gets the priority.
/// </summary>
/// <value>The priority.</value>
public override MetadataProviderPriority Priority
{
get { return MetadataProviderPriority.Last; }
}
}
}