(function () {
  "use strict";

  var cfg = window.travelgoThemeWidgets || {};
  var isMobile = window.matchMedia("(max-width: 767px)").matches;

  function canShowDevice(mobile, desktop) {
    if (isMobile) return !!mobile;
    return !!desktop;
  }

  function randomOf(arr, fallback) {
    if (!Array.isArray(arr) || arr.length === 0) return fallback;
    return arr[Math.floor(Math.random() * arr.length)];
  }

  function buildSalesMessage() {
    var name = randomOf(cfg.salesNames, "A customer");
    var item = randomOf(cfg.salesItems, "booked a trip");
    var place = randomOf(cfg.salesLocations, "just now");
    var mins = randomOf([5, 7, 10, 12, 15], 10);
    return name + " from " + place + " " + item + " " + mins + " min ago";
  }

  function renderSalesPopup() {
    if (!cfg.salesEnabled || !canShowDevice(cfg.salesMobile, cfg.salesDesktop)) return;
    var node = document.createElement("div");
    node.className = "travelgo-sales-popup";
    node.innerHTML =
      '<div class="travelgo-sales-popup__dot"></div>' +
      '<div class="travelgo-sales-popup__text"></div>' +
      '<button class="travelgo-sales-popup__close" aria-label="Close">×</button>';
    node.querySelector(".travelgo-sales-popup__text").textContent = buildSalesMessage();
    document.body.appendChild(node);

    var close = node.querySelector(".travelgo-sales-popup__close");
    close.addEventListener("click", function () {
      node.remove();
    });

    setTimeout(function () {
      node.classList.add("is-open");
    }, 100);
    setTimeout(function () {
      node.classList.remove("is-open");
      setTimeout(function () {
        node.remove();
      }, 300);
    }, 5200);
  }

  function initSalesLoop() {
    if (!cfg.salesEnabled || !canShowDevice(cfg.salesMobile, cfg.salesDesktop)) return;
    var interval = Math.max(parseInt(cfg.salesInterval || 12, 10), 5) * 1000;
    setTimeout(renderSalesPopup, 2000);
    setInterval(renderSalesPopup, interval);
  }

  function initWhatsApp() {
    if (!cfg.whatsappEnabled || !cfg.whatsappNumber || !canShowDevice(cfg.whatsappMobile, cfg.whatsappDesktop)) return;
    var msg = encodeURIComponent(cfg.whatsappMessage || "Hi! I need help.");
    var href = "https://wa.me/" + cfg.whatsappNumber + "?text=" + msg;
    var label = cfg.whatsappLabel || "Chat with us";

    var a = document.createElement("a");
    a.className = "travelgo-whatsapp-widget";
    a.href = href;
    a.target = "_blank";
    a.rel = "noopener noreferrer";
    a.innerHTML =
      '<span class="travelgo-whatsapp-widget__icon" aria-hidden="true">💬</span>' +
      '<span class="travelgo-whatsapp-widget__label"></span>';
    a.querySelector(".travelgo-whatsapp-widget__label").textContent = label;
    document.body.appendChild(a);
  }

  document.addEventListener("DOMContentLoaded", function () {
    initWhatsApp();
    initSalesLoop();
  });
})();