var liveGuideUID = 'LiveGuide_tZl3HKrMYaWSKshzj0TOF-i';
var liveGuideCookies = (function(liveGuideUID, undefined){
  'use strict';

  /**
   * Creates a cookie with specific name and TTL
   * @param {string} name
   * @param {number|string} value
   * @param {number} days
   */
  function setCookie(name, value, days) {
    var expires = '';
    if (days) {
      var date = new Date();
      date.setTime(date.getTime() + (days * 24 * 60 * 60 * 1000));
      expires = '; expires=' + date.toGMTString();
    }
    document.cookie = name + '=' + value + expires + '; SameSite=None; Secure; path=/';
  }

  /**
   * Retrieves a cookie's value by its name
   * @param {string} name The name of the cookie whose value we need to retrieve
   * @returns {string} A string representation of the cookie's value or the empty string as a default
   */
  function getCookie(name) {
    var cookie = document.cookie;
    var cookieStartIndex = -1;
    var cookieEndIndex = -1;
    var parsedCookie = '';

    if (cookie.length > 0) {
      cookieStartIndex = cookie.indexOf(name + '=');
      if (cookieStartIndex != -1) {
        cookieStartIndex = cookieStartIndex + name.length + 1;
        cookieEndIndex = cookie.indexOf(';', cookieStartIndex);
        if (cookieEndIndex == -1) {
          cookieEndIndex = cookie.length;
        }
        parsedCookie = encodeURIComponent(cookie.substring(cookieStartIndex,cookieEndIndex));
      }
    }
    return parsedCookie;
  }

  /**
   * Saves information about the time spent on the site by the customers
   * before they calls an operator.
   */
  (function initialize() {
    var currentDate = (new Date()).getTime();
    var lastDate = getCookie(liveGuideUID + '_date');
    if (lastDate === null || lastDate === '') {
      setCookie(liveGuideUID + '_date', currentDate, 0);
      setCookie(liveGuideUID + '_url', encodeURIComponent(window.document.URL), 0);
      setCookie(liveGuideUID + '_title', encodeURIComponent(window.document.title), 0);
      setCookie(liveGuideUID + '_ref', encodeURIComponent(window.document.referrer), 0);
      setCookie(liveGuideUID + '_duration', 0, 0);
    } else {
      setCookie(liveGuideUID + '_duration', currentDate - parseInt(lastDate), 0);
    }
  })();

  return {
    setCookie: setCookie,
    getCookie: getCookie
  }
}(liveGuideUID));