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!7

sS iconID = /*#1101425*/#1101427;
static double delay = 30.0, timeout = 30.0;
static int consecutiveFailsThreshold = 3; // TODO: change if loading
sS osBotName = "Stefan's OS.";

sbool v6;
static int consecutiveFails;
static volatile S status;

svoid activateOS {
  sendOpt("Stefan'S OS", "activate frames");
}

p {
  bot("Stefan's OS Watch Dog.");
  installTrayIcon(iconID, "Stefan's OS Watch Dog",
    r showConsole,
    "Restart OS Now", r restartOSNow,
    "Show Watch Dog Window", r showConsole,
    "Hide Watch Dog Window", r hideConsole,
    "Exit Watch Dog", rThread cleanKill);
  consoleIcon(iconID);
  //printWithDateAndTimeInThisThread();
  doEvery(delay, r {
    bool ok = false;
    pcall {
      long time = sysNow();
      S s = sendOptWithTimeout(timeout, osBotName, "swing latency");
      if (isInteger(s)) {
        hideConsole();
        ok = true;
        consecutiveFails = 0;
        printAndProgramLog(status = "Stefan's OS OK - Swing latency " + s + " ms, " + (sysNow()-time) + " ms");
        //v6 = isProgramRunning(#1016478);
        v6 = sameSnippetID(#1016478, evalWithTimeoutOrNull(timeout, func -> S {
          send("Stefan's OS", "program id")
        }));
      } else
        showConsole();
      consoleStatus(ok ? "OK" : "FAIL");
    }
    
    if (!ok) {
      ++consecutiveFails;
      printAndProgramLog(status = "Stefan's OS fail #" + consecutiveFails + " of " + consecutiveFailsThreshold);
      S stackTraces = sendOptWithTimeout(timeout, osBotName, "stack traces");
      if (nempty(stackTraces))
        printAndProgramLog(stackTraces);
      pcall { osFailActivity(); }
    }
  });
  hideConsole();
  
  quickRestartOnSocketLoss();
  sleep();
}

svoid osFailActivity {
  if (consecutiveFails >= consecutiveFailsThreshold)
    restartOSNow();
}

svoid restartOSNow {
  printAndProgramLog("RESTARTING STEFAN'S OS " + (v6 ? "v6" : "v5") + ".");
  consecutiveFails = 0;
  hardKillProgram(#1016005);
  hardKillProgram(#1016478);
  nohupJavax(v6 ? #1016478 : #1016005);
}

answer {
  if "status" ret status;
}

// TODO
svoid quickRestartOnSocketLoss {
  /*int port = getVMPortForBot(osBotName);
  if (port != 0) talkTo(port);*/
}