// ==UserScript==
// @name     Szczepienie
// @version  1
// @grant          unsafeWindow
// @include        https://pacjent.erejestracja.ezdrowie.gov.pl/*
// ==/UserScript==

// W ustawieniach przeglądarki ustawić (Firefox)
// media.autoplay.default 0

var beep = document.createElement('audio');
beep.src="https://s3.amazonaws.com/freecodecamp/drums/Heater-1.mp3";
beep.preload = 'auto';

var timer;

function refresh() {
	try {
		var btn = document.getElementById('contentWrapper').getElementsByTagName("FORM")[0].children[1].getElementsByTagName("BUTTON")[1];
		btn.click();


	} catch(err) {
  	console.log(err);
  }
}

function startCheckingResults() {
	timer = setInterval(checkResults, 500);
}

function checkResults() {
	try {
		var results = document.getElementById('contentWrapper').getElementsByTagName("UL")[0]
		if (results !== undefined) {
      beep.play();
      clearInterval(timer);
      setTimeout(startCheckingResults, 10000);
    }
	} catch(err) {
  	console.log(err);
  }
}

setInterval(refresh, 5000);
startCheckingResults();