Add People Dedup and multiple progress fixes (#14848)

MediaBrowser.Controller/Library/ILibraryManager.cs

@@ -336,6 +336,13 @@ namespace MediaBrowser.Controller.Library
         /// <param name="options">Options to use for deletion.</param>
         void DeleteItem(BaseItem item, DeleteOptions options);
 
+        /// <summary>
+        /// Deletes items that are not having any children like Actors.
+        /// </summary>
+        /// <param name="items">Items to delete.</param>
+        /// <remarks>In comparison to <see cref="DeleteItem(BaseItem, DeleteOptions, BaseItem, bool)"/> this method skips a lot of steps assuming there are no children to recusively delete nor does it define the special handling for channels and alike.</remarks>
+        public void DeleteItemsUnsafeFast(IEnumerable<BaseItem> items);
+
         /// <summary>
         /// Deletes the item.
         /// </summary>
@@ -624,6 +631,8 @@ namespace MediaBrowser.Controller.Library
 
         QueryResult<(BaseItem Item, ItemCounts ItemCounts)> GetArtists(InternalItemsQuery query);
 
+        IReadOnlyDictionary<string, MusicArtist[]> GetArtists(IReadOnlyList<string> names);
+
         QueryResult<(BaseItem Item, ItemCounts ItemCounts)> GetAlbumArtists(InternalItemsQuery query);
 
         QueryResult<(BaseItem Item, ItemCounts ItemCounts)> GetAllArtists(InternalItemsQuery query);

MediaBrowser.Controller/Persistence/IItemRepository.cs

@@ -9,6 +9,7 @@ using System.Threading.Tasks;
 using Jellyfin.Data.Enums;
 using Jellyfin.Database.Implementations.Entities;
 using MediaBrowser.Controller.Entities;
+using MediaBrowser.Controller.Entities.Audio;
 using MediaBrowser.Model.Dto;
 using MediaBrowser.Model.Querying;
 
@@ -22,8 +23,8 @@ public interface IItemRepository
     /// <summary>
     /// Deletes the item.
     /// </summary>
-    /// <param name="id">The identifier.</param>
-    void DeleteItem(Guid id);
+    /// <param name="ids">The identifier to delete.</param>
+    void DeleteItem(params IReadOnlyList<Guid> ids);
 
     /// <summary>
     /// Saves the items.
@@ -122,4 +123,11 @@ public interface IItemRepository
     /// <param name="recursive">Whever the check should be done recursive. Warning expensive operation.</param>
     /// <returns>A value indicating whever all children has been played.</returns>
     bool GetIsPlayed(User user, Guid id, bool recursive);
+
+    /// <summary>
+    /// Gets all artist matches from the db.
+    /// </summary>
+    /// <param name="artistNames">The names of the artists.</param>
+    /// <returns>A map of the artist name and the potential matches.</returns>
+    IReadOnlyDictionary<string, MusicArtist[]> FindArtists(IReadOnlyList<string> artistNames);
 }