MODULE test_sysinfo ;

(*
   m2SDL3 smoke tests, no window needed:
   - power: SDL_GetPowerInfo returns a known state id.
   - locale: preferred-locales list decodes (first language nonempty).
   - filesystem: base path + current directory are nonempty strings.
   SDL-allocated results are released with SDL_free.
*)

FROM SYSTEM IMPORT ADDRESS;
FROM SDL3Power IMPORT SDL_GetPowerInfo,
   PowerError, PowerUnknown, PowerOnBattery,
   PowerNoBattery, PowerCharging, PowerCharged;
FROM SDL3Locale IMPORT SDLLocale, LocalePtr, LocaleVecPtr,
   SDL_GetPreferredLocales;
FROM SDL3Filesystem IMPORT SDL_GetBasePath, SDL_GetCurrentDirectory;
FROM SDL3Stdinc IMPORT SDL_free;
FROM SDL3Utils IMPORT CStrToM2;
FROM libc IMPORT printf;

VAR
   secs, pct, state, n, i: INTEGER;
   vec: LocaleVecPtr;
   entry: LocalePtr;
   p: ADDRESS;
   buf: ARRAY [0..255] OF CHAR;

PROCEDURE Fail (msg: ARRAY OF CHAR);
BEGIN
   printf("FAIL test_sysinfo: %s\n", msg);
   HALT(1)
END Fail;

BEGIN
   (* power *)
   secs := 0; pct := 0;
   state := SDL_GetPowerInfo(secs, pct);
   printf("power state=%d secs=%d pct=%d\n", state, secs, pct);
   IF (state < PowerError) OR (state > PowerCharged) THEN
      Fail("power state out of range")
   END;

   (* locale *)
   n := 0;
   vec := SDL_GetPreferredLocales(n);
   IF vec = NIL THEN Fail("locale list NIL") END;
   printf("locales: %d\n", n);
   IF n <= 0 THEN Fail("locale count not positive") END;
   IF n > 256 THEN Fail("locale count over 256") END;
   entry := vec^[0];
   IF entry = NIL THEN Fail("first locale NIL") END;
   CStrToM2(entry^.language, buf);
   printf("first locale: %s\n", buf);
   IF buf[0] = 0C THEN Fail("first language empty") END;
   FOR i := 0 TO n - 1 DO
      IF vec^[i] = NIL THEN Fail("locale entry NIL") END
   END;
   SDL_free(vec);

   (* filesystem *)
   p := SDL_GetBasePath();
   CStrToM2(p, buf);
   SDL_free(p);
   printf("base: %s\n", buf);
   IF buf[0] = 0C THEN Fail("base path empty") END;
   p := SDL_GetCurrentDirectory();
   CStrToM2(p, buf);
   SDL_free(p);
   printf("cwd: %s\n", buf);
   IF buf[0] = 0C THEN Fail("cwd empty") END;

   printf("PASS test_sysinfo\n")
END test_sysinfo.