From bb018c4adc7916fafb7dac2db9a902be8d20e75d Mon Sep 17 00:00:00 2001
From: Bond-009 <bond.009@outlook.com>
Date: Wed, 17 Apr 2024 18:44:50 +0200
Subject: Enable nullable for LibraryManager (#11191)

---
 MediaBrowser.Controller/Library/ILibraryManager.cs | 37 +++++++++++-----------
 1 file changed, 18 insertions(+), 19 deletions(-)

(limited to 'MediaBrowser.Controller/Library/ILibraryManager.cs')

diff --git a/MediaBrowser.Controller/Library/ILibraryManager.cs b/MediaBrowser.Controller/Library/ILibraryManager.cs
index f0680f101..37703ceee 100644
--- a/MediaBrowser.Controller/Library/ILibraryManager.cs
+++ b/MediaBrowser.Controller/Library/ILibraryManager.cs
@@ -1,5 +1,3 @@
-#nullable disable
-
 #pragma warning disable CA1002, CS1591
 
 using System;
@@ -33,17 +31,17 @@ namespace MediaBrowser.Controller.Library
         /// <summary>
         /// Occurs when [item added].
         /// </summary>
-        event EventHandler<ItemChangeEventArgs> ItemAdded;
+        event EventHandler<ItemChangeEventArgs>? ItemAdded;
 
         /// <summary>
         /// Occurs when [item updated].
         /// </summary>
-        event EventHandler<ItemChangeEventArgs> ItemUpdated;
+        event EventHandler<ItemChangeEventArgs>? ItemUpdated;
 
         /// <summary>
         /// Occurs when [item removed].
         /// </summary>
-        event EventHandler<ItemChangeEventArgs> ItemRemoved;
+        event EventHandler<ItemChangeEventArgs>? ItemRemoved;
 
         /// <summary>
         /// Gets the root folder.
@@ -60,10 +58,10 @@ namespace MediaBrowser.Controller.Library
         /// <param name="parent">The parent.</param>
         /// <param name="directoryService">An instance of <see cref="IDirectoryService"/>.</param>
         /// <returns>BaseItem.</returns>
-        BaseItem ResolvePath(
+        BaseItem? ResolvePath(
             FileSystemMetadata fileInfo,
-            Folder parent = null,
-            IDirectoryService directoryService = null);
+            Folder? parent = null,
+            IDirectoryService? directoryService = null);
 
         /// <summary>
         /// Resolves a set of files into a list of BaseItem.
@@ -86,7 +84,7 @@ namespace MediaBrowser.Controller.Library
         /// </summary>
         /// <param name="name">The name of the person.</param>
         /// <returns>Task{Person}.</returns>
-        Person GetPerson(string name);
+        Person? GetPerson(string name);
 
         /// <summary>
         /// Finds the by path.
@@ -94,7 +92,7 @@ namespace MediaBrowser.Controller.Library
         /// <param name="path">The path.</param>
         /// <param name="isFolder"><c>true</c> is the path is a directory; otherwise <c>false</c>.</param>
         /// <returns>BaseItem.</returns>
-        BaseItem FindByPath(string path, bool? isFolder);
+        BaseItem? FindByPath(string path, bool? isFolder);
 
         /// <summary>
         /// Gets the artist.
@@ -166,7 +164,8 @@ namespace MediaBrowser.Controller.Library
         /// </summary>
         /// <param name="id">The id.</param>
         /// <returns>BaseItem.</returns>
-        BaseItem GetItemById(Guid id);
+        /// <exception cref="ArgumentNullException"><paramref name="id"/> is <c>null</c>.</exception>
+        BaseItem? GetItemById(Guid id);
 
         /// <summary>
         /// Gets the item by id, as T.
@@ -174,7 +173,7 @@ namespace MediaBrowser.Controller.Library
         /// <param name="id">The item id.</param>
         /// <typeparam name="T">The type of item.</typeparam>
         /// <returns>The item.</returns>
-        T GetItemById<T>(Guid id)
+        T? GetItemById<T>(Guid id)
             where T : BaseItem;
 
         /// <summary>
@@ -184,7 +183,7 @@ namespace MediaBrowser.Controller.Library
         /// <param name="userId">The user id to validate against.</param>
         /// <typeparam name="T">The type of item.</typeparam>
         /// <returns>The item if found.</returns>
-        public T GetItemById<T>(Guid id, Guid userId)
+        public T? GetItemById<T>(Guid id, Guid userId)
             where T : BaseItem;
 
         /// <summary>
@@ -194,7 +193,7 @@ namespace MediaBrowser.Controller.Library
         /// <param name="user">The user to validate against.</param>
         /// <typeparam name="T">The type of item.</typeparam>
         /// <returns>The item if found.</returns>
-        public T GetItemById<T>(Guid id, User user)
+        public T? GetItemById<T>(Guid id, User? user)
             where T : BaseItem;
 
         /// <summary>
@@ -228,9 +227,9 @@ namespace MediaBrowser.Controller.Library
         /// <param name="sortBy">The sort by.</param>
         /// <param name="sortOrder">The sort order.</param>
         /// <returns>IEnumerable{BaseItem}.</returns>
-        IEnumerable<BaseItem> Sort(IEnumerable<BaseItem> items, User user, IEnumerable<ItemSortBy> sortBy, SortOrder sortOrder);
+        IEnumerable<BaseItem> Sort(IEnumerable<BaseItem> items, User? user, IEnumerable<ItemSortBy> sortBy, SortOrder sortOrder);
 
-        IEnumerable<BaseItem> Sort(IEnumerable<BaseItem> items, User user, IEnumerable<(ItemSortBy OrderBy, SortOrder SortOrder)> orderBy);
+        IEnumerable<BaseItem> Sort(IEnumerable<BaseItem> items, User? user, IEnumerable<(ItemSortBy OrderBy, SortOrder SortOrder)> orderBy);
 
         /// <summary>
         /// Gets the user root folder.
@@ -243,7 +242,7 @@ namespace MediaBrowser.Controller.Library
         /// </summary>
         /// <param name="item">Item to create.</param>
         /// <param name="parent">Parent of new item.</param>
-        void CreateItem(BaseItem item, BaseItem parent);
+        void CreateItem(BaseItem item, BaseItem? parent);
 
         /// <summary>
         /// Creates the items.
@@ -251,7 +250,7 @@ namespace MediaBrowser.Controller.Library
         /// <param name="items">Items to create.</param>
         /// <param name="parent">Parent of new items.</param>
         /// <param name="cancellationToken">CancellationToken to use for operation.</param>
-        void CreateItems(IReadOnlyList<BaseItem> items, BaseItem parent, CancellationToken cancellationToken);
+        void CreateItems(IReadOnlyList<BaseItem> items, BaseItem? parent, CancellationToken cancellationToken);
 
         /// <summary>
         /// Updates the item.
@@ -529,7 +528,7 @@ namespace MediaBrowser.Controller.Library
         /// <returns>QueryResult&lt;BaseItem&gt;.</returns>
         QueryResult<BaseItem> QueryItems(InternalItemsQuery query);
 
-        string GetPathAfterNetworkSubstitution(string path, BaseItem ownerItem = null);
+        string GetPathAfterNetworkSubstitution(string path, BaseItem? ownerItem = null);
 
         /// <summary>
         /// Converts the image to local.
-- 
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