MODULE test_window ;

(*
   m2SDL smoke test: hidden window create -> title round-trip ->
   size query -> destroy. Uses a hidden window so it also passes
   headless (SDL_VIDEODRIVER=dummy).
*)

FROM SYSTEM IMPORT ADDRESS;
FROM SDL2 IMPORT SDL_Init, SDL_Quit, SDLInitVideo;
FROM SDLVideo IMPORT SDL_CreateWindow, SDL_DestroyWindow,
   SDL_GetWindowTitle, SDL_SetWindowTitle, SDL_GetWindowSize,
   WindowHidden, WindowPosUndefined;
FROM SDLEvents IMPORT SDL_PumpEvents;
FROM SDLUtils IMPORT CStrToM2;
FROM StrLib IMPORT StrEqual;
FROM libc IMPORT printf;

VAR
   win: ADDRESS;
   title: ADDRESS;
   titleBuf: ARRAY [0..63] OF CHAR;
   w, h: INTEGER;
   rc: INTEGER;

BEGIN
   rc := SDL_Init(SDLInitVideo);
   IF rc # 0 THEN
      printf("FAIL test_window: SDL_Init video -> %d\n", rc);
      HALT(1)
   END;

   win := SDL_CreateWindow("m2sdl-test",
                           WindowPosUndefined, WindowPosUndefined,
                           320, 240, WindowHidden);
   IF win = NIL THEN
      printf("FAIL test_window: CreateWindow returned NIL\n");
      SDL_Quit;
      HALT(1)
   END;

   SDL_SetWindowTitle(win, "m2sdl-retitled");
   title := SDL_GetWindowTitle(win);
   CStrToM2(title, titleBuf);
   IF NOT StrEqual(titleBuf, "m2sdl-retitled") THEN
      printf("FAIL test_window: title round-trip mismatch\n");
      SDL_DestroyWindow(win);
      SDL_Quit;
      HALT(1)
   END;

   SDL_GetWindowSize(win, w, h);
   IF (w # 320) OR (h # 240) THEN
      printf("FAIL test_window: size %dx%d, expected 320x240\n", w, h);
      SDL_DestroyWindow(win);
      SDL_Quit;
      HALT(1)
   END;

   SDL_PumpEvents;
   SDL_DestroyWindow(win);
   SDL_Quit;
   printf("PASS test_window\n")
END test_window.