jellyfin-server/MediaBrowser.Providers/Music/ArtistsPostScanTask.cs

159 lines
5.5 KiB
C#

using MediaBrowser.Common.Progress;
using MediaBrowser.Controller.Entities;
using MediaBrowser.Controller.Entities.Audio;
using MediaBrowser.Controller.Library;
using MediaBrowser.Model.Entities;
using System;
using System.Collections.Generic;
using System.Globalization;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
namespace MediaBrowser.Providers.Music
{
/// <summary>
/// Class ArtistsPostScanTask
/// </summary>
public class ArtistsPostScanTask : ILibraryPostScanTask
{
/// <summary>
/// The _library manager
/// </summary>
private readonly ILibraryManager _libraryManager;
/// <summary>
/// Initializes a new instance of the <see cref="ArtistsPostScanTask"/> class.
/// </summary>
/// <param name="libraryManager">The library manager.</param>
public ArtistsPostScanTask(ILibraryManager libraryManager)
{
_libraryManager = libraryManager;
}
/// <summary>
/// Runs the specified progress.
/// </summary>
/// <param name="progress">The progress.</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>Task.</returns>
public async Task Run(IProgress<double> progress, CancellationToken cancellationToken)
{
var allItems = _libraryManager.RootFolder.RecursiveChildren.ToList();
var allArtists = await GetAllArtists(allItems).ConfigureAwait(false);
progress.Report(10);
var allMusicArtists = allItems.OfType<MusicArtist>().ToList();
var allSongs = allItems.OfType<Audio>().ToList();
var numComplete = 0;
foreach (var artist in allArtists)
{
var musicArtist = FindMusicArtist(artist, allMusicArtists);
if (musicArtist != null)
{
MergeImages(musicArtist.Images, artist.Images);
// Merge backdrops
var backdrops = musicArtist.BackdropImagePaths.ToList();
backdrops.InsertRange(0, artist.BackdropImagePaths);
artist.BackdropImagePaths = backdrops.Distinct(StringComparer.OrdinalIgnoreCase)
.ToList();
}
if (!artist.LockedFields.Contains(MetadataFields.Genres))
{
// Avoid implicitly captured closure
var artist1 = artist;
artist.Genres = allSongs.Where(i => i.HasArtist(artist1.Name))
.SelectMany(i => i.Genres)
.Distinct(StringComparer.OrdinalIgnoreCase)
.ToList();
}
numComplete++;
double percent = numComplete;
percent /= allArtists.Length;
percent *= 5;
progress.Report(10 + percent);
}
var innerProgress = new ActionableProgress<double>();
innerProgress.RegisterAction(pct => progress.Report(15 + pct * .85));
await _libraryManager.ValidateArtists(cancellationToken, innerProgress).ConfigureAwait(false);
}
private void MergeImages(Dictionary<ImageType, string> source, Dictionary<ImageType, string> target)
{
foreach (var key in source.Keys
.ToList()
.Where(k => !target.ContainsKey(k)))
{
string path;
if (source.TryGetValue(key, out path))
{
target[key] = path;
}
}
}
/// <summary>
/// Gets all artists.
/// </summary>
/// <param name="allItems">All items.</param>
/// <returns>Task{Artist[]}.</returns>
private Task<Artist[]> GetAllArtists(IEnumerable<BaseItem> allItems)
{
var itemsList = allItems.OfType<Audio>().ToList();
var tasks = itemsList
.SelectMany(i =>
{
var list = new List<string>();
if (!string.IsNullOrEmpty(i.AlbumArtist))
{
list.Add(i.AlbumArtist);
}
list.AddRange(i.Artists);
return list;
})
.Distinct(StringComparer.OrdinalIgnoreCase)
.Select(i => _libraryManager.GetArtist(i));
return Task.WhenAll(tasks);
}
/// <summary>
/// Finds the music artist.
/// </summary>
/// <param name="artist">The artist.</param>
/// <param name="allMusicArtists">All music artists.</param>
/// <returns>MusicArtist.</returns>
private static MusicArtist FindMusicArtist(Artist artist, IEnumerable<MusicArtist> allMusicArtists)
{
var musicBrainzId = artist.GetProviderId(MetadataProviders.Musicbrainz);
return allMusicArtists.FirstOrDefault(i =>
{
if (!string.IsNullOrWhiteSpace(musicBrainzId) && string.Equals(musicBrainzId, i.GetProviderId(MetadataProviders.Musicbrainz), StringComparison.OrdinalIgnoreCase))
{
return true;
}
return string.Compare(i.Name, artist.Name, CultureInfo.CurrentCulture, CompareOptions.IgnoreNonSpace | CompareOptions.IgnoreCase | CompareOptions.IgnoreSymbols) == 0;
});
}
}
}