jQuery(".faq .item .trigger").each(function (_, el) {
  jQuery(el).click(function (event) {
    jQuery(".faq .item__open").each(function (_, el) {
      el.classList.remove("item__open");
    });
    event.currentTarget.parentNode.classList.add("item__open");
  });
});

jQuery(".agenda__item").each(function (_, el) {
  jQuery(el).click(function (event) {
    jQuery(".agenda__item").each(function (_, el) {
      el.classList.add("agenda__item--closed");
    });
    event.currentTarget.classList.remove("agenda__item--closed");
  });
});

function format(v) {
  if (v.toString().length < 2) {
    return "0" + v.toString();
  }
  return v;
}

function tick() {
  var t1 = new Date();
  var t2 = new Date(2020, 11, 16, 21, 0, 0, 0);
  var diff = Math.floor(t2.getTime() - t1.getTime());

  var diffInSeconds = Math.max(Math.round(diff / 1000), 0);
  var days = Math.floor(diffInSeconds / (3600 * 24));
  diffInSeconds -= days * 24 * 3600;
  var hours = Math.floor(diffInSeconds / 3600);
  diffInSeconds -= hours * 3600;
  var minutes = Math.floor(diffInSeconds / 60);
  diffInSeconds -= minutes * 60;

  var el = document.querySelectorAll("[data-js='dni']");
  for (var i = 0; i < el.length; i++) {
    el[i].innerHTML = format(days);
  }
  el = document.querySelectorAll("[data-js='godziny']");
  for (var i = 0; i < el.length; i++) {
    el[i].innerHTML = format(hours);
  }
  el = document.querySelectorAll("[data-js='minuty']");
  for (var i = 0; i < el.length; i++) {
    el[i].innerHTML = format(minutes);
  }
  el = document.querySelectorAll("[data-js='sekundy']");
  for (var i = 0; i < el.length; i++) {
    el[i].innerHTML = format(diffInSeconds);
  }
}
tick();
setInterval(tick, 1000);

jQuery(".demo__items strong").each(function (_, el) {
  jQuery(el).click(function (event) {
    var id = jQuery(event.currentTarget).parents(".item").attr("data-js");
    jQuery(event.currentTarget).parents(".demo__items").attr("data-js", id);
    // reset all videos
    jQuery(event.currentTarget)
      .parents(".demo__items")
      .next()
      .find(".audio, .video")
      .each(function (_, el) {
        el.outerHTML = el.outerHTML;
      });
  });
});