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jellyfin/Emby.Server.Implementations/Library/Resolvers/Audio/MusicArtistResolver.cs

114 lines
3.9 KiB

#nullable disable
using System;
using System.Linq;
using System.Threading.Tasks;
using Emby.Naming.Common;
using MediaBrowser.Controller.Entities.Audio;
using MediaBrowser.Controller.Library;
using MediaBrowser.Controller.Providers;
using MediaBrowser.Controller.Resolvers;
using MediaBrowser.Model.Entities;
using Microsoft.Extensions.Logging;
namespace Emby.Server.Implementations.Library.Resolvers.Audio
{
/// <summary>
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/// The music artist resolver.
/// </summary>
public class MusicArtistResolver : ItemResolver<MusicArtist>
{
private readonly ILogger<MusicAlbumResolver> _logger;
private readonly NamingOptions _namingOptions;
private readonly IDirectoryService _directoryService;
/// <summary>
/// Initializes a new instance of the <see cref="MusicArtistResolver"/> class.
/// </summary>
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/// <param name="logger">Instance of the <see cref="MusicAlbumResolver"/> interface.</param>
/// <param name="namingOptions">The <see cref="NamingOptions"/>.</param>
/// <param name="directoryService">The directory service.</param>
public MusicArtistResolver(
ILogger<MusicAlbumResolver> logger,
NamingOptions namingOptions,
IDirectoryService directoryService)
{
_logger = logger;
_namingOptions = namingOptions;
_directoryService = directoryService;
}
/// <summary>
/// Gets the priority.
/// </summary>
/// <value>The priority.</value>
public override ResolverPriority Priority => ResolverPriority.Second;
/// <summary>
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/// Resolves the specified resolver arguments.
/// </summary>
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/// <param name="args">The resolver arguments.</param>
/// <returns>A <see cref="MusicArtist"/>.</returns>
protected override MusicArtist Resolve(ItemResolveArgs args)
{
if (!args.IsDirectory)
{
return null;
}
// Don't allow nested artists
if (args.HasParent<MusicArtist>() || args.HasParent<MusicAlbum>())
{
return null;
}
var collectionType = args.GetCollectionType();
var isMusicMediaFolder = string.Equals(collectionType, CollectionType.Music, StringComparison.OrdinalIgnoreCase);
// If there's a collection type and it's not music, it can't be a music artist
if (!isMusicMediaFolder)
{
return null;
}
if (args.ContainsFileSystemEntryByName("artist.nfo"))
{
return new MusicArtist();
}
// Avoid mis-identifying top folders
if (args.Parent.IsRoot)
{
return null;
}
var albumResolver = new MusicAlbumResolver(_logger, _namingOptions, _directoryService);
var directories = args.FileSystemChildren.Where(i => i.IsDirectory);
var result = Parallel.ForEach(directories, (fileSystemInfo, state) =>
{
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// If we contain a artist subfolder assume we are an artist folder
foreach (var subfolder in _namingOptions.ArtistSubfolders)
{
if (fileSystemInfo.Name.Equals(subfolder, StringComparison.OrdinalIgnoreCase))
{
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// Stop once we see an artist subfolder
state.Stop();
}
}
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// If we contain a music album assume we are an artist folder
if (albumResolver.IsMusicAlbum(fileSystemInfo.FullName, _directoryService))
{
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// Stop once we see a music album
state.Stop();
}
});
return !result.IsCompleted ? new MusicArtist() : null;
}
}
}