Add FanArtAlbumProvider

MediaBrowser.Controller/MediaBrowser.Controller.csproj

@@ -108,6 +108,7 @@
     <Compile Include="IServerApplicationPaths.cs" />
     <Compile Include="Library\ChildrenChangedEventArgs.cs" />
     <Compile Include="Library\DtoBuilder.cs" />
+    <Compile Include="Providers\Music\FanArtAlbumProvider.cs" />
     <Compile Include="Providers\Music\FanArtArtistProvider.cs" />
     <Compile Include="Providers\Music\LastfmArtistProvider.cs" />
     <Compile Include="Providers\Music\LastfmHelper.cs" />

MediaBrowser.Controller/Providers/FanartBaseProvider.cs

@@ -7,6 +7,14 @@ using MediaBrowser.Model.Logging;
 
 namespace MediaBrowser.Controller.Providers
 {
+    class FanArtProviderException : ApplicationException
+    {
+        public FanArtProviderException(string msg)
+            : base(msg)
+        {
+        }
+
+    }
     /// <summary>
     /// Class FanartBaseProvider
     /// </summary>

MediaBrowser.Controller/Providers/Music/FanArtAlbumProvider.cs

@@ -0,0 +1,74 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading;
+using System.Threading.Tasks;
+using MediaBrowser.Controller.Configuration;
+using MediaBrowser.Controller.Entities;
+using MediaBrowser.Controller.Entities.Audio;
+using MediaBrowser.Model.Entities;
+using MediaBrowser.Model.Logging;
+using MediaBrowser.Common.Extensions;
+
+namespace MediaBrowser.Controller.Providers.Music
+{
+    public class FanArtAlbumProvider : FanartBaseProvider
+    {
+        public FanArtAlbumProvider(ILogManager logManager, IServerConfigurationManager configurationManager) : base(logManager, configurationManager)
+        {
+        }
+
+        public override bool Supports(BaseItem item)
+        {
+            return item is MusicAlbum && item.Parent is MusicArtist;
+        }
+
+        /// <summary>
+        /// Needses the refresh internal.
+        /// </summary>
+        /// <param name="item">The item.</param>
+        /// <param name="providerInfo">The provider info.</param>
+        /// <returns><c>true</c> if we need refreshing, <c>false</c> otherwise</returns>
+        protected override bool NeedsRefreshInternal(BaseItem item, BaseProviderInfo providerInfo)
+        {
+            //we fetch if image needed and haven't already tried recently
+            return string.IsNullOrEmpty(item.PrimaryImagePath) && 
+                   DateTime.Today.Subtract(providerInfo.LastRefreshed).TotalDays > ConfigurationManager.Configuration.MetadataRefreshDays;
+        }
+
+        protected override async Task<bool> FetchAsyncInternal(BaseItem item, bool force, CancellationToken cancellationToken)
+        {
+            var mbid = item.GetProviderId(MetadataProviders.Musicbrainz);
+            if (mbid == null)
+            {
+                Logger.Warn("No Musicbrainz id associated with album {0}", item.Name);
+                SetLastRefreshed(item, DateTime.UtcNow, ProviderRefreshStatus.CompletedWithErrors);
+                return false;
+            }
+
+            cancellationToken.ThrowIfCancellationRequested();
+
+            //Look at our parent for our album cover
+            var artist = (MusicArtist)item.Parent;
+            var cover = artist.AlbumCovers != null ? artist.AlbumCovers.GetValueOrDefault(mbid, null) : null;
+            if (cover == null)
+            {
+                // Not there - maybe it is new since artist last refreshed so refresh it and try again
+                await artist.RefreshMetadata(cancellationToken).ConfigureAwait(false);
+                cancellationToken.ThrowIfCancellationRequested();
+
+                cover = artist.AlbumCovers != null ? artist.AlbumCovers.GetValueOrDefault(mbid, null) : null;
+            }
+            if (cover == null)
+            {
+                Logger.Warn("Unable to find cover art for {0}", item.Name);
+                SetLastRefreshed(item, DateTime.UtcNow, ProviderRefreshStatus.CompletedWithErrors);
+                return false;
+            }
+
+            item.SetImage(ImageType.Primary, await Kernel.Instance.ProviderManager.DownloadAndSaveImage(item, cover, "folder.jpg", FanArtResourcePool, cancellationToken).ConfigureAwait(false));
+            return true;
+        }
+    }
+}