feat: added a gallery quick action and fleshed out builtin macros

test/bds/translation_completeness_test.exs

@@ -0,0 +1,86 @@
+defmodule BDS.TranslationCompletenessTest do
+  use ExUnit.Case, async: true
+
+  @translated_locales ~w(de fr it es)
+
+  @doc """
+  Counts empty msgstr entries per non-English locale .po file and ensures
+  the count never increases.  When a new msgid is added to the codebase its
+  translations MUST be provided for all supported locales; an empty msgstr
+  in de/fr/it/es causes this test to fail.
+
+  English files are excluded — gettext treats empty msgstr as "return msgid
+  unchanged" for the source language, which is the intended fallback.
+
+  The expected counts below represent current untranslated legacy entries
+  that must decrease over time, never increase.  When the count decreases
+  because translations were added, update the expected count in this test.
+  """
+  test "empty msgstr counts do not increase in non-English locale .po files" do
+    expected = %{
+      "de/default.po" => 0,
+      "de/render.po" => 0,
+      "de/ui.po" => 153,
+      "fr/default.po" => 0,
+      "fr/render.po" => 0,
+      "fr/ui.po" => 153,
+      "it/default.po" => 0,
+      "it/render.po" => 0,
+      "it/ui.po" => 153,
+      "es/default.po" => 0,
+      "es/render.po" => 0,
+      "es/ui.po" => 153
+    }
+
+    actual =
+      for locale <- @translated_locales,
+          domain <- ~w(ui default render) do
+        file = "priv/gettext/#{locale}/LC_MESSAGES/#{domain}.po"
+
+        if File.exists?(file) do
+          count = empty_msgstr_count(file)
+          key = "#{locale}/#{domain}.po"
+          {key, count}
+        end
+      end
+      |> Enum.reject(&is_nil/1)
+      |> Map.new()
+
+    for {file, expected_count} <- expected do
+      actual_count = Map.get(actual, file, 0)
+
+      assert actual_count <= expected_count,
+             "#{file}: empty msgstr count increased from #{expected_count} to #{actual_count}. " <>
+               "All new msgid entries MUST have translations for every supported locale (de, fr, it, es). " <>
+               "When the count decreases because translations were added, update the expected count in this test."
+    end
+  end
+
+  defp empty_msgstr_count(file) do
+    file
+    |> File.read!()
+    |> String.split("\n")
+    |> Enum.reduce({nil, 0}, fn line, {current_msgid, count} ->
+      trimmed = String.trim(line)
+
+      case {trimmed, current_msgid} do
+        {"msgstr \"\"", nil} ->
+          {nil, count}
+
+        {"msgstr \"\"", msgid} ->
+          if msgid == "" do
+            {nil, count}
+          else
+            {nil, count + 1}
+          end
+
+        {"msgid \"" <> rest, _} ->
+          {String.trim_trailing(rest, "\""), count}
+
+        _ ->
+          {current_msgid, count}
+      end
+    end)
+    |> elem(1)
+  end
+end