jellyfin/Emby.Server.Implementations/Library/Resolvers/Audio/MusicAlbumResolver.cs
2017-09-10 16:40:31 -04:00

175 lines
6.1 KiB
C#

using MediaBrowser.Controller.Entities.Audio;
using MediaBrowser.Controller.Library;
using MediaBrowser.Controller.Providers;
using MediaBrowser.Controller.Resolvers;
using MediaBrowser.Model.Entities;
using MediaBrowser.Model.Logging;
using Emby.Naming.Audio;
using System;
using System.Collections.Generic;
using System.IO;
using MediaBrowser.Model.IO;
using MediaBrowser.Controller.Configuration;
using MediaBrowser.Controller.IO;
using MediaBrowser.Model.Configuration;
namespace Emby.Server.Implementations.Library.Resolvers.Audio
{
/// <summary>
/// Class MusicAlbumResolver
/// </summary>
public class MusicAlbumResolver : ItemResolver<MusicAlbum>
{
private readonly ILogger _logger;
private readonly IFileSystem _fileSystem;
private readonly ILibraryManager _libraryManager;
public MusicAlbumResolver(ILogger logger, IFileSystem fileSystem, ILibraryManager libraryManager)
{
_logger = logger;
_fileSystem = fileSystem;
_libraryManager = libraryManager;
}
/// <summary>
/// Gets the priority.
/// </summary>
/// <value>The priority.</value>
public override ResolverPriority Priority
{
get
{
// Behind special folder resolver
return ResolverPriority.Second;
}
}
/// <summary>
/// Resolves the specified args.
/// </summary>
/// <param name="args">The args.</param>
/// <returns>MusicAlbum.</returns>
protected override MusicAlbum Resolve(ItemResolveArgs args)
{
if (!args.IsDirectory) return null;
// Avoid mis-identifying top folders
if (args.HasParent<MusicAlbum>()) return null;
if (args.Parent.IsRoot) 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, don't allow it.
if (!isMusicMediaFolder)
{
return null;
}
return IsMusicAlbum(args) ? new MusicAlbum() : null;
}
/// <summary>
/// Determine if the supplied file data points to a music album
/// </summary>
public bool IsMusicAlbum(string path, IDirectoryService directoryService, LibraryOptions libraryOptions)
{
return ContainsMusic(directoryService.GetFileSystemEntries(path), true, directoryService, _logger, _fileSystem, libraryOptions, _libraryManager);
}
/// <summary>
/// Determine if the supplied resolve args should be considered a music album
/// </summary>
/// <param name="args">The args.</param>
/// <returns><c>true</c> if [is music album] [the specified args]; otherwise, <c>false</c>.</returns>
private bool IsMusicAlbum(ItemResolveArgs args)
{
// Args points to an album if parent is an Artist folder or it directly contains music
if (args.IsDirectory)
{
//if (args.Parent is MusicArtist) return true; //saves us from testing children twice
if (ContainsMusic(args.FileSystemChildren, true, args.DirectoryService, _logger, _fileSystem, args.GetLibraryOptions(), _libraryManager)) return true;
}
return false;
}
/// <summary>
/// Determine if the supplied list contains what we should consider music
/// </summary>
private bool ContainsMusic(IEnumerable<FileSystemMetadata> list,
bool allowSubfolders,
IDirectoryService directoryService,
ILogger logger,
IFileSystem fileSystem,
LibraryOptions libraryOptions,
ILibraryManager libraryManager)
{
var discSubfolderCount = 0;
var notMultiDisc = false;
foreach (var fileSystemInfo in list)
{
if (fileSystemInfo.IsDirectory)
{
if (allowSubfolders)
{
var path = fileSystemInfo.FullName;
var isMultiDisc = IsMultiDiscFolder(path, libraryOptions);
if (isMultiDisc)
{
var hasMusic = ContainsMusic(directoryService.GetFileSystemEntries(path), false, directoryService, logger, fileSystem, libraryOptions, libraryManager);
if (hasMusic)
{
logger.Debug("Found multi-disc folder: " + path);
discSubfolderCount++;
}
}
else
{
var hasMusic = ContainsMusic(directoryService.GetFileSystemEntries(path), false, directoryService, logger, fileSystem, libraryOptions, libraryManager);
if (hasMusic)
{
// If there are folders underneath with music that are not multidisc, then this can't be a multi-disc album
notMultiDisc = true;
}
}
}
}
else
{
var fullName = fileSystemInfo.FullName;
if (libraryManager.IsAudioFile(fullName, libraryOptions))
{
return true;
}
}
}
if (notMultiDisc)
{
return false;
}
return discSubfolderCount > 0;
}
private bool IsMultiDiscFolder(string path, LibraryOptions libraryOptions)
{
var namingOptions = ((LibraryManager)_libraryManager).GetNamingOptions();
var parser = new AlbumParser(namingOptions);
var result = parser.ParseMultiPart(path);
return result.IsMultiPart;
}
}
}