jellyfin/MediaBrowser.Providers/Music/LastfmAlbumProvider.cs

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using MediaBrowser.Common.Extensions;
using MediaBrowser.Common.Net;
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using MediaBrowser.Controller.Configuration;
using MediaBrowser.Controller.Entities;
using MediaBrowser.Controller.Entities.Audio;
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using MediaBrowser.Controller.Providers;
using MediaBrowser.Model.Entities;
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using MediaBrowser.Model.Logging;
using MediaBrowser.Model.Serialization;
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using MoreLinq;
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using System;
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using System.IO;
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using System.Linq;
using System.Threading;
using System.Threading.Tasks;
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namespace MediaBrowser.Providers.Music
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{
public class LastfmAlbumProvider : LastfmBaseProvider
{
internal static LastfmAlbumProvider Current;
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public LastfmAlbumProvider(IJsonSerializer jsonSerializer, IHttpClient httpClient, ILogManager logManager, IServerConfigurationManager configurationManager)
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: base(jsonSerializer, httpClient, logManager, configurationManager)
{
Current = this;
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}
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/// <summary>
/// Gets the priority.
/// </summary>
/// <value>The priority.</value>
public override MetadataProviderPriority Priority
{
get { return MetadataProviderPriority.Fourth; }
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}
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protected override string ProviderVersion
{
get
{
return "9";
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}
}
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private bool HasAltMeta(BaseItem item)
{
return item.LocationType == LocationType.FileSystem && item.ResolveArgs.ContainsMetaFileByName("album.xml");
}
/// <summary>
/// Needses the refresh internal.
/// </summary>
/// <param name="item">The item.</param>
/// <param name="providerInfo">The provider info.</param>
/// <returns><c>true</c> if XXXX, <c>false</c> otherwise</returns>
protected override bool NeedsRefreshInternal(BaseItem item, BaseProviderInfo providerInfo)
{
var hasId = !string.IsNullOrEmpty(item.GetProviderId(MetadataProviders.Musicbrainz)) &&
!string.IsNullOrEmpty(item.GetProviderId(MetadataProviders.MusicBrainzReleaseGroup));
if (hasId && HasAltMeta(item))
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{
return false;
}
// If song metadata has changed and we don't have an mbid, refresh
if (!hasId && GetComparisonData(item as MusicAlbum) != providerInfo.FileStamp)
{
return true;
}
return base.NeedsRefreshInternal(item, providerInfo);
}
/// <summary>
/// Fetches metadata and returns true or false indicating if any work that requires persistence was done
/// </summary>
/// <param name="item">The item.</param>
/// <param name="force">if set to <c>true</c> [force].</param>
/// <param name="cancellationToken">The cancellation token</param>
/// <returns>Task{System.Boolean}.</returns>
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public override async Task<bool> FetchAsync(BaseItem item, bool force, BaseProviderInfo providerInfo, CancellationToken cancellationToken)
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{
cancellationToken.ThrowIfCancellationRequested();
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var album = (MusicAlbum)item;
var result = await GetAlbumResult(album, cancellationToken).ConfigureAwait(false);
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if (result != null && result.album != null)
{
LastfmHelper.ProcessAlbumData(item, result.album);
}
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providerInfo.FileStamp = GetComparisonData(album);
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SetLastRefreshed(item, DateTime.UtcNow, providerInfo);
return true;
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}
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private async Task<LastfmGetAlbumResult> GetAlbumResult(MusicAlbum item, CancellationToken cancellationToken)
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{
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// Try album release Id
if (!string.IsNullOrEmpty(item.GetProviderId(MetadataProviders.Musicbrainz)))
{
var result = await GetAlbumResult(item.GetProviderId(MetadataProviders.Musicbrainz), cancellationToken).ConfigureAwait(false);
if (result != null && result.album != null)
{
return result;
}
}
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// Try album release group Id
if (!string.IsNullOrEmpty(item.GetProviderId(MetadataProviders.MusicBrainzReleaseGroup)))
{
var result = await GetAlbumResult(item.GetProviderId(MetadataProviders.MusicBrainzReleaseGroup), cancellationToken).ConfigureAwait(false);
if (result != null && result.album != null)
{
return result;
}
}
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// Get each song, distinct by the combination of AlbumArtist and Album
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var songs = item.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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var result = await GetAlbumResult(song.AlbumArtist, song.Album, cancellationToken).ConfigureAwait(false);
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if (result != null && result.album != null)
{
return result;
}
}
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// Try the folder name
return await GetAlbumResult(item.Parent.Name, item.Name, cancellationToken);
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}
private async Task<LastfmGetAlbumResult> GetAlbumResult(string artist, string album, CancellationToken cancellationToken)
{
// Get albu info using artist and album name
var url = RootUrl + string.Format("method=album.getInfo&artist={0}&album={1}&api_key={2}&format=json", UrlEncode(artist), UrlEncode(album), ApiKey);
using (var json = await HttpClient.Get(new HttpRequestOptions
{
Url = url,
ResourcePool = LastfmResourcePool,
CancellationToken = cancellationToken,
EnableHttpCompression = false
}).ConfigureAwait(false))
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{
using (var reader = new StreamReader(json))
{
var jsonText = await reader.ReadToEndAsync().ConfigureAwait(false);
// Fix their bad json
jsonText = jsonText.Replace("\"#text\"", "\"url\"");
return JsonSerializer.DeserializeFromString<LastfmGetAlbumResult>(jsonText);
}
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}
}
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private async Task<LastfmGetAlbumResult> GetAlbumResult(string musicbraizId, CancellationToken cancellationToken)
{
// Get albu info using artist and album name
var url = RootUrl + string.Format("method=album.getInfo&mbid={0}&api_key={1}&format=json", musicbraizId, ApiKey);
using (var json = await HttpClient.Get(new HttpRequestOptions
{
Url = url,
ResourcePool = LastfmResourcePool,
CancellationToken = cancellationToken,
EnableHttpCompression = false
}).ConfigureAwait(false))
{
return JsonSerializer.DeserializeFromStream<LastfmGetAlbumResult>(json);
}
}
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public override bool Supports(BaseItem item)
{
return item is MusicAlbum;
}
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/// <summary>
/// Gets the data.
/// </summary>
/// <param name="album">The album.</param>
/// <returns>Guid.</returns>
private Guid GetComparisonData(MusicAlbum album)
{
var songs = album.RecursiveChildren.OfType<Audio>().ToList();
var albumArtists = songs.Select(i => i.AlbumArtist)
.Where(i => !string.IsNullOrEmpty(i))
.Distinct(StringComparer.OrdinalIgnoreCase)
.ToList();
var albumNames = songs.Select(i => i.AlbumArtist)
.Where(i => !string.IsNullOrEmpty(i))
.Distinct(StringComparer.OrdinalIgnoreCase)
.ToList();
albumArtists.AddRange(albumNames);
return string.Join(string.Empty, albumArtists.OrderBy(i => i).ToArray()).GetMD5();
}
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}
}