Revert "Make /MusicGenres obsolete"

Jellyfin.Api/Controllers/GenresController.cs

@@ -66,7 +66,6 @@ namespace Jellyfin.Api.Controllers
         /// <response code="200">Genres returned.</response>
         /// <returns>An <see cref="OkResult"/> containing the queryresult of genres.</returns>
         [HttpGet]
-        [HttpGet("/MusicGenres", Name = "GetMusicGenres-Deprecated")]
         [ProducesResponseType(StatusCodes.Status200OK)]
         public ActionResult<QueryResult<BaseItemDto>> GetGenres(
             [FromQuery] int? startIndex,

Jellyfin.Api/Controllers/MusicGenresController.cs

@@ -44,6 +44,88 @@ namespace Jellyfin.Api.Controllers
             _dtoService = dtoService;
         }
 
+        /// <summary>
+        /// Gets all music genres from a given item, folder, or the entire library.
+        /// </summary>
+        /// <param name="startIndex">Optional. The record index to start at. All items with a lower index will be dropped from the results.</param>
+        /// <param name="limit">Optional. The maximum number of records to return.</param>
+        /// <param name="searchTerm">The search term.</param>
+        /// <param name="parentId">Specify this to localize the search to a specific item or folder. Omit to use the root.</param>
+        /// <param name="fields">Optional. Specify additional fields of information to return in the output. This allows multiple, comma delimited. Options: Budget, Chapters, DateCreated, Genres, HomePageUrl, IndexOptions, MediaStreams, Overview, ParentId, Path, People, ProviderIds, PrimaryImageAspectRatio, Revenue, SortName, Studios, Taglines.</param>
+        /// <param name="excludeItemTypes">Optional. If specified, results will be filtered out based on item type. This allows multiple, comma delimited.</param>
+        /// <param name="includeItemTypes">Optional. If specified, results will be filtered in based on item type. This allows multiple, comma delimited.</param>
+        /// <param name="isFavorite">Optional filter by items that are marked as favorite, or not.</param>
+        /// <param name="imageTypeLimit">Optional, the max number of images to return, per image type.</param>
+        /// <param name="enableImageTypes">Optional. The image types to include in the output.</param>
+        /// <param name="userId">User id.</param>
+        /// <param name="nameStartsWithOrGreater">Optional filter by items whose name is sorted equally or greater than a given input string.</param>
+        /// <param name="nameStartsWith">Optional filter by items whose name is sorted equally than a given input string.</param>
+        /// <param name="nameLessThan">Optional filter by items whose name is equally or lesser than a given input string.</param>
+        /// <param name="enableImages">Optional, include image information in output.</param>
+        /// <param name="enableTotalRecordCount">Optional. Include total record count.</param>
+        /// <response code="200">Music genres returned.</response>
+        /// <returns>An <see cref="OkResult"/> containing the queryresult of music genres.</returns>
+        [HttpGet]
+        public ActionResult<QueryResult<BaseItemDto>> GetMusicGenres(
+            [FromQuery] int? startIndex,
+            [FromQuery] int? limit,
+            [FromQuery] string? searchTerm,
+            [FromQuery] string? parentId,
+            [FromQuery] string? fields,
+            [FromQuery] string? excludeItemTypes,
+            [FromQuery] string? includeItemTypes,
+            [FromQuery] bool? isFavorite,
+            [FromQuery] int? imageTypeLimit,
+            [FromQuery] ImageType[] enableImageTypes,
+            [FromQuery] Guid? userId,
+            [FromQuery] string? nameStartsWithOrGreater,
+            [FromQuery] string? nameStartsWith,
+            [FromQuery] string? nameLessThan,
+            [FromQuery] bool? enableImages = true,
+            [FromQuery] bool enableTotalRecordCount = true)
+        {
+            var dtoOptions = new DtoOptions()
+                .AddItemFields(fields)
+                .AddClientFields(Request)
+                .AddAdditionalDtoOptions(enableImages, false, imageTypeLimit, enableImageTypes);
+
+            User? user = userId.HasValue && userId != Guid.Empty ? _userManager.GetUserById(userId.Value) : null;
+
+            var parentItem = _libraryManager.GetParentItem(parentId, userId);
+
+            var query = new InternalItemsQuery(user)
+            {
+                ExcludeItemTypes = RequestHelpers.Split(excludeItemTypes, ',', true),
+                IncludeItemTypes = RequestHelpers.Split(includeItemTypes, ',', true),
+                StartIndex = startIndex,
+                Limit = limit,
+                IsFavorite = isFavorite,
+                NameLessThan = nameLessThan,
+                NameStartsWith = nameStartsWith,
+                NameStartsWithOrGreater = nameStartsWithOrGreater,
+                DtoOptions = dtoOptions,
+                SearchTerm = searchTerm,
+                EnableTotalRecordCount = enableTotalRecordCount
+            };
+
+            if (!string.IsNullOrWhiteSpace(parentId))
+            {
+                if (parentItem is Folder)
+                {
+                    query.AncestorIds = new[] { new Guid(parentId) };
+                }
+                else
+                {
+                    query.ItemIds = new[] { new Guid(parentId) };
+                }
+            }
+
+            var result = _libraryManager.GetMusicGenres(query);
+
+            var shouldIncludeItemTypes = !string.IsNullOrWhiteSpace(includeItemTypes);
+            return RequestHelpers.CreateQueryResult(result, dtoOptions, _dtoService, shouldIncludeItemTypes, user);
+        }
+
         /// <summary>
         /// Gets a music genre, by name.
         /// </summary>

Jellyfin.Server/Extensions/ApiServiceCollectionExtensions.cs

@@ -260,7 +260,6 @@ namespace Jellyfin.Server.Extensions
                 c.AddSwaggerTypeMappings();
 
                 c.OperationFilter<FileResponseFilter>();
-                c.OperationFilter<ObsoleteRoutesFilter>();
                 c.DocumentFilter<WebsocketModelFilter>();
             });
         }

Jellyfin.Server/Filters/ObsoleteRoutesFilter.cs

@@ -1,22 +0,0 @@
-using System;
-using Microsoft.AspNetCore.Mvc.Controllers;
-using Microsoft.OpenApi.Models;
-using Swashbuckle.AspNetCore.SwaggerGen;
-
-namespace Jellyfin.Server.Filters
-{
-    /// <inheritdoc />
-    public class ObsoleteRoutesFilter : IOperationFilter
-    {
-        /// <inheritdoc />
-        public void Apply(OpenApiOperation operation, OperationFilterContext context)
-        {
-            if (context.ApiDescription.ActionDescriptor is ControllerActionDescriptor actionDescriptor
-                && !string.IsNullOrEmpty(actionDescriptor.AttributeRouteInfo.Name)
-                && actionDescriptor.AttributeRouteInfo.Name.EndsWith("deprecated", StringComparison.OrdinalIgnoreCase))
-            {
-                operation.Deprecated = true;
-            }
-        }
-    }
-}