MODULE test_version ;

(*
   m2-GTK4 test - GTK reports version 4 and every binding module links.

   Widget construction is guarded by gtk_init_check() so the test also
   runs (and passes) headless, where only the version/link part runs.
*)

FROM Gtk IMPORT gtk_init_check, gtk_get_major_version, gtk_get_minor_version;
FROM GtkApplication IMPORT gtk_application_new;
FROM GtkWindow IMPORT gtk_window_new, gtk_window_destroy;
FROM GtkLabel IMPORT gtk_label_new;
FROM GtkButton IMPORT gtk_button_new_with_label;
FROM GtkEnums IMPORT GtkAlignCenter, GtkVertical;
FROM GLib IMPORT g_get_monotonic_time;
FROM SYSTEM IMPORT ADDRESS;
FROM libc IMPORT printf;

VAR
   major, minor: CARDINAL;
   ok: BOOLEAN;
   rc: INTEGER;
   app, window, label, button: ADDRESS;
BEGIN
   major := gtk_get_major_version();
   minor := gtk_get_minor_version();
   printf("GTK version: %d.%d\n", major, minor);

   ok := (major = 4);
   IF g_get_monotonic_time() = 0 THEN ok := FALSE END;
   IF (GtkAlignCenter # 3) OR (GtkVertical # 1) THEN ok := FALSE END;

   rc := gtk_init_check();
   IF rc # 0 THEN
      app := gtk_application_new("org.example.m2gtk4.Version", 0);
      IF app = NIL THEN ok := FALSE END;

      window := gtk_window_new();
      IF window = NIL THEN ok := FALSE END;
      label := gtk_label_new("x");
      IF label = NIL THEN ok := FALSE END;
      button := gtk_button_new_with_label("x");
      IF button = NIL THEN ok := FALSE END;

      gtk_window_destroy(window)
   ELSE
      printf("(no display: widget construction skipped)\n")
   END;

   IF ok THEN
      printf("test_version: PASS\n");
      HALT(0)
   ELSE
      printf("test_version: FAIL\n");
      HALT(1)
   END
END test_version.