3 files changed, 47 insertions, 1 deletions
diff --git a/MediaBrowser.Controller/MediaBrowser.Controller.csproj b/MediaBrowser.Controller/MediaBrowser.Controller.csproj
index 6a7557e3a..6d09fe163 100644
--- a/MediaBrowser.Controller/MediaBrowser.Controller.csproj
+++ b/MediaBrowser.Controller/MediaBrowser.Controller.csproj
@@ -194,6 +194,7 @@
     <Compile Include="Security\IEncryptionManager.cs" />
     <Compile Include="Subtitles\ISubtitleManager.cs" />
     <Compile Include="Subtitles\ISubtitleProvider.cs" />
+    <Compile Include="Providers\ItemIdentities.cs" />
     <Compile Include="Providers\ItemLookupInfo.cs" />
     <Compile Include="Providers\MetadataRefreshOptions.cs" />
     <Compile Include="Providers\NameParser.cs" />
diff --git a/MediaBrowser.Controller/Providers/IProviderManager.cs b/MediaBrowser.Controller/Providers/IProviderManager.cs
index 94b19498a..242a16ee9 100644
--- a/MediaBrowser.Controller/Providers/IProviderManager.cs
+++ b/MediaBrowser.Controller/Providers/IProviderManager.cs
@@ -54,11 +54,13 @@ namespace MediaBrowser.Controller.Providers
         /// </summary>
         /// <param name="imageProviders">The image providers.</param>
         /// <param name="metadataServices">The metadata services.</param>
+        /// <param name="identityProviders">The identity providers.</param>
+        /// <param name="identityConverters">The identity converters.</param>
         /// <param name="metadataProviders">The metadata providers.</param>
         /// <param name="savers">The savers.</param>
         /// <param name="imageSavers">The image savers.</param>
         /// <param name="externalIds">The external ids.</param>
-        void AddParts(IEnumerable<IImageProvider> imageProviders, IEnumerable<IMetadataService> metadataServices, IEnumerable<IMetadataProvider> metadataProviders,
+        void AddParts(IEnumerable<IImageProvider> imageProviders, IEnumerable<IMetadataService> metadataServices, IEnumerable<IItemIdentityProvider> identityProviders, IEnumerable<IItemIdentityConverter> identityConverters, IEnumerable<IMetadataProvider> metadataProviders,
             IEnumerable<IMetadataSaver> savers,
             IEnumerable<IImageSaver> imageSavers,
             IEnumerable<IExternalId> externalIds);
diff --git a/MediaBrowser.Controller/Providers/ItemIdentities.cs b/MediaBrowser.Controller/Providers/ItemIdentities.cs
new file mode 100644
index 000000000..93d468af0
--- /dev/null
+++ b/MediaBrowser.Controller/Providers/ItemIdentities.cs
@@ -0,0 +1,43 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace MediaBrowser.Controller.Providers
+{
+    public interface IItemIdentity
+    {
+        string Type { get; }
+    }
+
+    public interface IHasIdentities<out TIdentity>
+        where TIdentity : IItemIdentity
+    {
+        IEnumerable<TIdentity> Identities { get; }
+
+        Task FindIdentities(IProviderManager providerManager, CancellationToken cancellationToken);
+    }
+
+    public interface IItemIdentityProvider : IHasOrder { }
+
+    public interface IItemIdentityProvider<in TLookupInfo, TIdentity> : IItemIdentityProvider
+        where TLookupInfo : ItemLookupInfo
+        where TIdentity : IItemIdentity
+    {
+        Task<TIdentity> FindIdentity(TLookupInfo info);
+    }
+
+    public interface IItemIdentityConverter : IHasOrder { }
+
+    public interface IItemIdentityConverter<TIdentity> : IItemIdentityConverter
+        where TIdentity : IItemIdentity
+    {
+        Task<TIdentity> Convert(TIdentity identity);
+
+        string SourceType { get; }
+
+        string ResultType { get; }
+    }
+}
+\ No newline at end of file