InstanceView: Move supported languages to pleroma.metadata

Signed-off-by: marcin mikołajczak <git@mkljczk.pl>

lib/pleroma/web/mastodon_api/views/instance_view.ex

@@ -206,36 +206,10 @@ defmodule Pleroma.Web.MastodonAPI.InstanceView do
       vapid: %{
         public_key: Keyword.get(Pleroma.Web.Push.vapid_config(), :public_key)
       },
-      translation: translation_config()
+      translation: %{enabled: Pleroma.Language.Translation.configured?()}
     })
   end
 
-  defp translation_config do
-    enabled = Pleroma.Language.Translation.configured?()
-
-    source_languages =
-      with true <- enabled,
-           {:ok, languages} <- Pleroma.Language.Translation.supported_languages(:source) do
-        languages
-      else
-        _ -> nil
-      end
-
-    target_languages =
-      with true <- enabled,
-           {:ok, languages} <- Pleroma.Language.Translation.supported_languages(:target) do
-        languages
-      else
-        _ -> nil
-      end
-
-    %{
-      enabled: enabled,
-      source_languages: source_languages,
-      target_languages: target_languages
-    }
-  end
-
   defp pleroma_configuration(instance) do
     %{
       metadata: %{
@@ -245,7 +219,8 @@ defmodule Pleroma.Web.MastodonAPI.InstanceView do
         fields_limits: fields_limits(),
         post_formats: Config.get([:instance, :allowed_post_formats]),
         birthday_required: Config.get([:instance, :birthday_required]),
-        birthday_min_age: Config.get([:instance, :birthday_min_age])
+        birthday_min_age: Config.get([:instance, :birthday_min_age]),
+        translation: supported_languages()
       },
       stats: %{mau: Pleroma.User.active_user_count()},
       vapid_public_key: Keyword.get(Pleroma.Web.Push.vapid_config(), :public_key)
@@ -271,4 +246,29 @@ defmodule Pleroma.Web.MastodonAPI.InstanceView do
         })
     })
   end
+
+  defp supported_languages do
+    enabled = Pleroma.Language.Translation.configured?()
+
+    source_languages =
+      with true <- enabled,
+           {:ok, languages} <- Pleroma.Language.Translation.supported_languages(:source) do
+        languages
+      else
+        _ -> nil
+      end
+
+    target_languages =
+      with true <- enabled,
+           {:ok, languages} <- Pleroma.Language.Translation.supported_languages(:target) do
+        languages
+      else
+        _ -> nil
+      end
+
+    %{
+      source_languages: source_languages,
+      target_languages: target_languages
+    }
+  end
 end