(function () {
  "use strict";

  var containerElement = document.createElement("div");
  containerElement.className = "cce-widget-container";
  document.body.appendChild(containerElement);

  var supportedCharsets = ["iso-8859-2", "windows-1250", "windows-1251"];
  var charset = (document.inputEncoding || document.characterSet || document.charset || document.defaultCharset || "").toLowerCase();
  var scriptNameSuffix = supportedCharsets.indexOf(charset) > -1 ? "-" + charset : "";

  if (typeof window._cceSettings !== "object" || window._cceSettings === null) {
    window._cceSettings = {};
  }

  window._cceSettings.id = "300";

  var fallbackVersion = "latest";
  var versionUrl = "https://asset.trueengage.com/version.json";

  function loadWidget(version) {
    var baseUrl =
      "https://asset.trueengage.com/assets/trueengage/" +
      encodeURIComponent(version) +
      "/assets/";

      if(version === "latest") {
        baseUrl = "https://asset.trueengage.com/assets/";
      }

    (function (d, s, id) {
      var js,
        fjs = d.getElementsByTagName(s)[0];
      if (d.getElementById(id)) return;
      js = d.createElement(s);
      js.id = id;
      js.async = true;
      js.src = baseUrl + "cce-widget" + scriptNameSuffix + ".js";
      fjs.parentNode.insertBefore(js, fjs);
    })(document, "script", "cce-script");

    (function (d, s, id) {
      var link,
        fjs = d.getElementsByTagName(s)[0];
      if (d.getElementById(id)) return;
      link = d.createElement(s);
      link.id = id;
      link.rel = "stylesheet";
      link.href = baseUrl + "cce-widget" + scriptNameSuffix + ".css";
      (fjs && fjs.parentNode && fjs.parentNode.insertBefore(link, fjs)) ||
        document.head.appendChild(link);
    })(document, "link", "cce-style");
  }

  fetch(versionUrl, {
    cache: "no-store" // prevent browser caching
  })
    .then(function (res) {
      if (!res.ok) throw new Error("Failed to load version.json");
      return res.json();
    })
    .then(function (json) {
      var version = json && json.current ? json.current : fallbackVersion;
      window._cceSettings.widgetVersion = version;
      loadWidget(version);
    })
    .catch(function () {
      // On any error → fallback to "latest"
      window._cceSettings.widgetVersion = fallbackVersion;
      loadWidget(fallbackVersion);
    });
})();