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165 lines
6.3 KiB
C#
165 lines
6.3 KiB
C#
using MediaBrowser.Common.Extensions;
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using MediaBrowser.Common.Net;
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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 MediaBrowser.Model.Serialization;
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using System;
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using System.IO;
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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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using MoreLinq;
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namespace MediaBrowser.Providers.Music
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{
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public class LastfmAlbumProvider : LastfmBaseProvider
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{
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private static readonly Task<string> BlankId = Task.FromResult("");
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private readonly IProviderManager _providerManager;
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/// <summary>
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/// The name of the local json meta file for this item type
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/// </summary>
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protected string LocalMetaFileName { get; set; }
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public LastfmAlbumProvider(IJsonSerializer jsonSerializer, IHttpClient httpClient, ILogManager logManager, IServerConfigurationManager configurationManager, IProviderManager providerManager)
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: base(jsonSerializer, httpClient, logManager, configurationManager)
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{
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_providerManager = providerManager;
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LocalMetaFileName = LastfmHelper.LocalAlbumMetaFileName;
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}
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protected override Task<string> FindId(BaseItem item, CancellationToken cancellationToken)
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{
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// We don't fetch by id
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return BlankId;
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}
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/// <summary>
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/// Needses the refresh internal.
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/// </summary>
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/// <param name="item">The item.</param>
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/// <param name="providerInfo">The provider info.</param>
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/// <returns><c>true</c> if XXXX, <c>false</c> otherwise</returns>
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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 and we don't have an mbid, refresh
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if (string.IsNullOrEmpty(item.GetProviderId(MetadataProviders.Musicbrainz)) &&
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GetComparisonData(item as MusicAlbum) != providerInfo.Data)
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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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protected override async Task FetchLastfmData(BaseItem item, string id, CancellationToken cancellationToken)
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{
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var result = await GetAlbumResult(item, cancellationToken).ConfigureAwait(false);
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if (result != null && result.album != null)
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{
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LastfmHelper.ProcessAlbumData(item, result.album);
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//And save locally if indicated
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if (ConfigurationManager.Configuration.SaveLocalMeta)
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{
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var ms = new MemoryStream();
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JsonSerializer.SerializeToStream(result.album, ms);
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cancellationToken.ThrowIfCancellationRequested();
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await _providerManager.SaveToLibraryFilesystem(item, Path.Combine(item.MetaLocation, LocalMetaFileName), ms, cancellationToken).ConfigureAwait(false);
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}
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}
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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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data.Data = GetComparisonData(item as MusicAlbum);
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}
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private async Task<LastfmGetAlbumResult> GetAlbumResult(BaseItem item, CancellationToken cancellationToken)
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{
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var folder = (Folder)item;
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// Get each song, distinct by the combination of AlbumArtist and Album
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var songs = folder.RecursiveChildren.OfType<Audio>().DistinctBy(i => (i.AlbumArtist ?? string.Empty) + (i.Album ?? string.Empty), StringComparer.OrdinalIgnoreCase).ToList();
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foreach (var song in songs.Where(song => !string.IsNullOrEmpty(song.Album) && !string.IsNullOrEmpty(song.AlbumArtist)))
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{
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var result = await GetAlbumResult(song.AlbumArtist, song.Album, cancellationToken).ConfigureAwait(false);
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if (result != null && result.album != null)
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{
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return result;
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}
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}
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// Try the folder name
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return await GetAlbumResult(item.Parent.Name, item.Name, cancellationToken);
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}
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private async Task<LastfmGetAlbumResult> GetAlbumResult(string artist, string album, CancellationToken cancellationToken)
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{
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// Get albu info using artist and album name
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var url = RootUrl + string.Format("method=album.getInfo&artist={0}&album={1}&api_key={2}&format=json", UrlEncode(artist), UrlEncode(album), ApiKey);
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using (var json = await HttpClient.Get(new HttpRequestOptions
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{
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Url = url,
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ResourcePool = LastfmResourcePool,
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CancellationToken = cancellationToken,
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EnableHttpCompression = false
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}).ConfigureAwait(false))
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{
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return JsonSerializer.DeserializeFromStream<LastfmGetAlbumResult>(json);
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}
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}
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protected override Task FetchData(BaseItem item, CancellationToken cancellationToken)
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{
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return FetchLastfmData(item, string.Empty, cancellationToken);
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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 MusicAlbum;
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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="album">The album.</param>
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/// <returns>Guid.</returns>
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private Guid GetComparisonData(MusicAlbum album)
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{
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var songs = album.RecursiveChildren.OfType<Audio>().ToList();
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var albumArtists = songs.Select(i => i.AlbumArtist)
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.Where(i => !string.IsNullOrEmpty(i))
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.Distinct(StringComparer.OrdinalIgnoreCase)
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.ToList();
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var albumNames = songs.Select(i => i.AlbumArtist)
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.Where(i => !string.IsNullOrEmpty(i))
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.Distinct(StringComparer.OrdinalIgnoreCase)
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.ToList();
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albumArtists.AddRange(albumNames);
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return string.Join(string.Empty, albumArtists.OrderBy(i => i).ToArray()).GetMD5();
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}
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}
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}
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