$(function () {
  // product detail

  var sync1 = $("#sync1");
  var sync2 = $("#sync2");
  var slidesPerPage = 4;
  var syncedSecondary = true;

  sync1
    .owlCarousel({
      items: 1,
      slideSpeed: 2000,
      nav: false,
      autoplay: false,
      dots: true,
      loop: true,
      rtl: true,
      responsiveRefreshRate: 200,
      navText: [
        '<svg width="12" height="12" height="100%" viewBox="0 0 11 20"><path style="fill:none;stroke-width: 3px;stroke: #fff;" d="M9.554,1.001l-8.607,8.607l8.607,8.606"/></svg>',
        '<svg width="12" height="12" viewBox="0 0 11 20" version="1.1"><path style="fill:none;stroke-width: 3px;stroke: #fff;" d="M1.054,18.214l8.606,-8.606l-8.606,-8.607"/></svg>',
      ],
    })
    .on("changed.owl.carousel", syncPosition);

  sync2
    .on("initialized.owl.carousel", function () {
      sync2.find(".owl-item").eq(0).addClass("current");
    })
    .owlCarousel({
      items: slidesPerPage,
      items: 6,
      margin: 16,
      dots: true,
      nav: false,
      rtl: true,
      smartSpeed: 200,
      slideSpeed: 500,
      slideBy: slidesPerPage,
      responsiveRefreshRate: 100,
    })
    .on("changed.owl.carousel", syncPosition2);

  function syncPosition(el) {
    var count = el.item.count - 1;
    var current = Math.round(el.item.index - el.item.count / 2 - 0.5);

    if (current < 0) {
      current = count;
    }
    if (current > count) {
      current = 0;
    }

    sync2
      .find(".owl-item")
      .removeClass("current")
      .eq(current)
      .addClass("current");
    var onscreen = sync2.find(".owl-item.active").length - 1;
    var start = sync2.find(".owl-item.active").first().index();
    var end = sync2.find(".owl-item.active").last().index();

    if (current > end) {
      sync2.data("owl.carousel").to(current, 100, true);
    }
    if (current < start) {
      sync2.data("owl.carousel").to(current - onscreen, 100, true);
    }
  }

  function syncPosition2(el) {
    if (syncedSecondary) {
      var number = el.item.index;
      sync1.data("owl.carousel").to(number, 100, true);
    }
  }

  sync2.on("click", ".owl-item", function (e) {
    e.preventDefault();
    var number = $(this).index();
    sync1.data("owl.carousel").to(number, 300, true);
  });
});