Move ItemsProxy sort helpers

src/Jellyfin.Plugin.Multilang/Api/MultilangController.cs

@@ -408,9 +408,9 @@ public sealed class MultilangController : ControllerBase
         if (ids.Length == 0)
             return body;
 
-        var sortLocale = ResolveSortLocale(rules.SortLocale, controls.ClientLocale);
+        var sortLocale = ItemsProxySorting.ResolveSortLocale(rules.SortLocale, controls.ClientLocale);
-        var sortCulture = GetSortCulture(sortLocale);
+        var sortCulture = ItemsProxySorting.GetSortCulture(sortLocale);
-        var sortArticles = GetSortArticles(sortLocale);
+        var sortArticles = ItemsProxySorting.GetSortArticles(_articleCatalog, Plugin.Instance?.Configuration?.ArticleEntries ?? [], sortLocale);
 
         var localGenreIds = rules.Enabled ? ItemsProxyRequestBuilder.ParseLocalGenreIds(controls.GenreIds) : [];
         if (rules.Enabled || localGenreIds.Length > 0)
@@ -753,7 +753,7 @@ public sealed class MultilangController : ControllerBase
             return false;
         }
 
-        var culture = GetSortCulture(ResolveSortLocale(locale, locale));
+        var culture = ItemsProxySorting.GetSortCulture(ItemsProxySorting.ResolveSortLocale(locale, locale));
         var comparer = StringComparer.Create(culture, true);
         var items = names
             .Where(kv => !string.IsNullOrWhiteSpace(kv.Value))
@@ -1182,7 +1182,7 @@ public sealed class MultilangController : ControllerBase
         var categoryMatch = PickCategoryMatch(rules, classificationFacts);
         var category = categoryMatch.Effective;
         var clientLocale = Request.Query.TryGetValue("mlLocale", out var mlLocale) ? mlLocale.ToString() : string.Empty;
-        var effectiveSortLocale = ResolveSortLocale(rules.SortLocale, clientLocale);
+        var effectiveSortLocale = ItemsProxySorting.ResolveSortLocale(rules.SortLocale, clientLocale);
         var genreLocale = string.IsNullOrWhiteSpace(clientLocale) ? effectiveSortLocale : clientLocale;
 
         var actionLists = ActionFields.ToDictionary(
@@ -1751,77 +1751,6 @@ public sealed class MultilangController : ControllerBase
         return [JellyfinAction];
     }
 
-    private static string ResolveSortLocale(string? configuredLocale, string? clientLocale)
-    {
-        var configured = (configuredLocale ?? string.Empty).Trim();
-        if (configured.Length > 0 && !configured.Equals("Auto", StringComparison.OrdinalIgnoreCase))
-            return configured;
-
-        return (clientLocale ?? string.Empty).Trim();
-    }
-
-    private CultureInfo GetSortCulture(string? sortLocale)
-    {
-        var locale = (sortLocale ?? string.Empty).Trim();
-        if (locale.Length == 0)
-            return CultureInfo.InvariantCulture;
-
-        try
-        {
-            return CultureInfo.GetCultureInfo(locale);
-        }
-        catch (CultureNotFoundException)
-        {
-            return CultureInfo.InvariantCulture;
-        }
-    }
-
-    private string[] GetSortArticles(string? sortLocale)
-    {
-        var locale = (sortLocale ?? string.Empty).Trim();
-        if (locale.Length == 0)
-            locale = "en";
-
-        var configured = Plugin.Instance?.Configuration?.ArticleEntries ?? [];
-        var custom = configured.FirstOrDefault(e => e.Language.Equals(locale, StringComparison.OrdinalIgnoreCase))
-                     ?? configured.FirstOrDefault(e => locale.StartsWith(e.Language + "-", StringComparison.OrdinalIgnoreCase));
-        if (custom is not null)
-            return SplitArticles(custom.Articles);
-
-        var builtIns = _articleCatalog.GetBuiltIns();
-        if (builtIns.TryGetValue(locale, out var exact))
-            return exact;
-
-        var dash = locale.IndexOf('-', StringComparison.Ordinal);
-        if (dash > 0 && builtIns.TryGetValue(locale[..dash], out var languageOnly))
-            return languageOnly;
-
-        return [];
-    }
-
-    private static string[] SplitArticles(string articles)
-        => articles.Split([',', ';'], StringSplitOptions.RemoveEmptyEntries | StringSplitOptions.TrimEntries)
-            .Distinct(StringComparer.OrdinalIgnoreCase)
-            .ToArray();
-
-    private static bool TryGetItemsArray(JsonNode root, out JsonArray items)
-    {
-        if (root is JsonObject obj && obj["Items"] is JsonArray array)
-        {
-            items = array;
-            return true;
-        }
-
-        if (root is JsonArray direct)
-        {
-            items = direct;
-            return true;
-        }
-
-        items = [];
-        return false;
-    }
-
     private IActionResult ServeEmbedded(string resource, string contentType)
     {
         var content = ReadEmbedded(resource);

src/Jellyfin.Plugin.Multilang/Services/ItemsProxySorting.cs

@@ -1,6 +1,7 @@
 using System.Globalization;
 using System.Text;
 using System.Text.Json.Nodes;
+using Jellyfin.Plugin.Multilang.Configuration;
 
 namespace Jellyfin.Plugin.Multilang.Services;
 
@@ -52,6 +53,57 @@ public static class ItemsProxySorting
         }
     }
 
+    public static string ResolveSortLocale(string? configuredLocale, string? clientLocale)
+    {
+        var configured = (configuredLocale ?? string.Empty).Trim();
+        return configured.Length > 0 && !configured.Equals("Auto", StringComparison.OrdinalIgnoreCase)
+            ? configured
+            : (clientLocale ?? string.Empty).Trim();
+    }
+
+    public static CultureInfo GetSortCulture(string? sortLocale)
+    {
+        var locale = (sortLocale ?? string.Empty).Trim();
+        if (locale.Length == 0)
+            return CultureInfo.InvariantCulture;
+
+        try
+        {
+            return CultureInfo.GetCultureInfo(locale);
+        }
+        catch (CultureNotFoundException)
+        {
+            return CultureInfo.InvariantCulture;
+        }
+    }
+
+    public static string[] GetSortArticles(SortArticleCatalog articleCatalog, IEnumerable<SortArticleEntry> configuredArticles, string? sortLocale)
+    {
+        var locale = (sortLocale ?? string.Empty).Trim();
+        if (locale.Length == 0)
+            locale = "en";
+
+        var configured = configuredArticles.ToArray();
+        var custom = configured.FirstOrDefault(e => e.Language.Equals(locale, StringComparison.OrdinalIgnoreCase))
+                     ?? configured.FirstOrDefault(e => locale.StartsWith(e.Language + "-", StringComparison.OrdinalIgnoreCase));
+        if (custom is not null)
+            return SplitArticles(custom.Articles);
+
+        var builtIns = articleCatalog.GetBuiltIns();
+        if (builtIns.TryGetValue(locale, out var exact))
+            return exact;
+
+        var dash = locale.IndexOf('-', StringComparison.Ordinal);
+        return dash > 0 && builtIns.TryGetValue(locale[..dash], out var languageOnly)
+            ? languageOnly
+            : [];
+    }
+
+    private static string[] SplitArticles(string articles)
+        => articles.Split([',', ';'], StringSplitOptions.RemoveEmptyEntries | StringSplitOptions.TrimEntries)
+            .Distinct(StringComparer.OrdinalIgnoreCase)
+            .ToArray();
+
     private static bool TryGetItemsArray(JsonNode root, out JsonArray items)
     {
         if (root is JsonObject obj && obj["Items"] is JsonArray array)