From 71594b4a9a1fa91fbb03e6e8f79090465619bd9c Mon Sep 17 00:00:00 2001
From: Shadowghost <Ghost_of_Stone@web.de>
Date: Sun, 8 Feb 2026 17:22:52 +0100
Subject: Fix multiple version resolution

---
 MediaBrowser.Controller/Library/ILibraryManager.cs | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

(limited to 'MediaBrowser.Controller/Library')

diff --git a/MediaBrowser.Controller/Library/ILibraryManager.cs b/MediaBrowser.Controller/Library/ILibraryManager.cs
index 453d9f7c2b..e73dede1d4 100644
--- a/MediaBrowser.Controller/Library/ILibraryManager.cs
+++ b/MediaBrowser.Controller/Library/ILibraryManager.cs
@@ -67,6 +67,22 @@ namespace MediaBrowser.Controller.Library
             IDirectoryService? directoryService = null,
             CollectionType? collectionType = null);
 
+        /// <summary>
+        /// Resolves a video file as an alternate version of a primary video, ensuring the result
+        /// has the same concrete type as the primary (e.g. Movie instead of generic Video).
+        /// Also cleans up any existing item with the wrong type from a previous scan.
+        /// </summary>
+        /// <param name="path">The file path of the alternate version.</param>
+        /// <param name="expectedVideoType">The expected concrete type (same as the primary video).</param>
+        /// <param name="parent">The parent folder.</param>
+        /// <param name="collectionType">The collection type of the library.</param>
+        /// <returns>A correctly-typed Video, or null if resolution fails.</returns>
+        Video? ResolveAlternateVersion(
+            string path,
+            Type expectedVideoType,
+            Folder? parent,
+            CollectionType? collectionType);
+
         /// <summary>
         /// Resolves a set of files into a list of BaseItem.
         /// </summary>
-- 
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