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91 lines
2.8 KiB
C#
91 lines
2.8 KiB
C#
using MediaBrowser.Common.Extensions;
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using MediaBrowser.Controller.Configuration;
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using MediaBrowser.Controller.Entities;
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using MediaBrowser.Controller.Entities.Audio;
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using MediaBrowser.Controller.Providers;
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using MediaBrowser.Model.Entities;
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using MediaBrowser.Model.Logging;
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Threading;
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using System.Threading.Tasks;
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namespace MediaBrowser.Providers.Music
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{
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public class ArtistInfoFromSongProvider : BaseMetadataProvider
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{
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public ArtistInfoFromSongProvider(ILogManager logManager, IServerConfigurationManager configurationManager)
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: base(logManager, configurationManager)
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{
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}
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public override bool Supports(BaseItem item)
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{
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return item is MusicArtist;
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}
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protected override bool NeedsRefreshInternal(BaseItem item, BaseProviderInfo providerInfo)
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{
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// If song metadata has changed
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if (GetComparisonData((MusicArtist)item) != providerInfo.FileStamp)
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{
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return true;
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}
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return base.NeedsRefreshInternal(item, providerInfo);
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}
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/// <summary>
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/// Gets the data.
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/// </summary>
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/// <param name="artist">The artist.</param>
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/// <returns>Guid.</returns>
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private Guid GetComparisonData(MusicArtist artist)
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{
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var songs = artist.RecursiveChildren.OfType<Audio>().ToList();
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return GetComparisonData(songs);
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}
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private Guid GetComparisonData(List<Audio> songs)
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{
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var genres = songs.SelectMany(i => i.Genres)
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.Distinct(StringComparer.OrdinalIgnoreCase)
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.ToList();
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return string.Join(string.Empty, genres.OrderBy(i => i).ToArray()).GetMD5();
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}
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public override Task<bool> FetchAsync(BaseItem item, bool force, CancellationToken cancellationToken)
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{
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var artist = (MusicArtist)item;
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BaseProviderInfo data;
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if (!item.ProviderData.TryGetValue(Id, out data))
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{
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data = new BaseProviderInfo();
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item.ProviderData[Id] = data;
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}
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var songs = artist.RecursiveChildren.OfType<Audio>().ToList();
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if (!item.LockedFields.Contains(MetadataFields.Genres))
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{
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artist.Genres = songs.SelectMany(i => i.Genres)
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.Distinct(StringComparer.OrdinalIgnoreCase)
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.ToList();
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}
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data.FileStamp = GetComparisonData(songs);
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SetLastRefreshed(item, DateTime.UtcNow);
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return TrueTaskResult;
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}
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public override MetadataProviderPriority Priority
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{
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get { return MetadataProviderPriority.Second; }
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}
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}
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}
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