1 files changed, 57 insertions, 0 deletions
diff --git a/MediaBrowser.Controller/Persistence/IItemTypeLookup.cs b/MediaBrowser.Controller/Persistence/IItemTypeLookup.cs
new file mode 100644
index 000000000..1b2ca2acb
--- /dev/null
+++ b/MediaBrowser.Controller/Persistence/IItemTypeLookup.cs
@@ -0,0 +1,57 @@
+using System;
+using System.Collections.Generic;
+using Jellyfin.Data.Enums;
+using MediaBrowser.Model.Querying;
+
+namespace MediaBrowser.Controller.Persistence;
+
+/// <summary>
+/// Provides static lookup data for <see cref="ItemFields"/> and <see cref="BaseItemKind"/> for the domain.
+/// </summary>
+public interface IItemTypeLookup
+{
+    /// <summary>
+    /// Gets all values of the ItemFields type.
+    /// </summary>
+    public IReadOnlyList<ItemFields> AllItemFields { get; }
+
+    /// <summary>
+    /// Gets all BaseItemKinds that are considered Programs.
+    /// </summary>
+    public IReadOnlyList<BaseItemKind> ProgramTypes { get; }
+
+    /// <summary>
+    /// Gets all BaseItemKinds that should be excluded from parent lookup.
+    /// </summary>
+    public IReadOnlyList<BaseItemKind> ProgramExcludeParentTypes { get; }
+
+    /// <summary>
+    /// Gets all BaseItemKinds that are considered to be provided by services.
+    /// </summary>
+    public IReadOnlyList<BaseItemKind> ServiceTypes { get; }
+
+    /// <summary>
+    /// Gets all BaseItemKinds that have a StartDate.
+    /// </summary>
+    public IReadOnlyList<BaseItemKind> StartDateTypes { get; }
+
+    /// <summary>
+    /// Gets all BaseItemKinds that are considered Series.
+    /// </summary>
+    public IReadOnlyList<BaseItemKind> SeriesTypes { get; }
+
+    /// <summary>
+    /// Gets all BaseItemKinds that are not to be evaluated for Artists.
+    /// </summary>
+    public IReadOnlyList<BaseItemKind> ArtistExcludeParentTypes { get; }
+
+    /// <summary>
+    /// Gets all BaseItemKinds that are considered Artists.
+    /// </summary>
+    public IReadOnlyList<BaseItemKind> ArtistsTypes { get; }
+
+    /// <summary>
+    /// Gets mapping for all BaseItemKinds and their expected serialisaition target.
+    /// </summary>
+    public IDictionary<BaseItemKind, string?> BaseItemKindNames { get; }
+}