(function () {
  'use strict';

  const noopfn = function () {
  };
  //
  const Gaq = function () {
  };
  Gaq.prototype.Na = noopfn;
  Gaq.prototype.O = noopfn;
  Gaq.prototype.Sa = noopfn;
  Gaq.prototype.Ta = noopfn;
  Gaq.prototype.Va = noopfn;
  Gaq.prototype._createAsyncTracker = noopfn;
  Gaq.prototype._getAsyncTracker = noopfn;
  Gaq.prototype._getPlugin = noopfn;
  Gaq.prototype.push = function (a) {
    if (typeof a === 'function') {
      a(); return;
    }
    if (Array.isArray(a) === false) { return; }
    // https://developers.google.com/analytics/devguides/collection/gajs/methods/gaJSApiDomainDirectory#_gat.GA_Tracker_._link
    if (
      typeof a[0] === 'string'
      && /(^|\.)_link$/.test(a[0])
      && typeof a[1] === 'string'
    ) {
      try {
        window.location.assign(a[1]);
      } catch {
      }
    }
    if (a[0] === '_set' && a[1] === 'hitCallback' && typeof a[2] === 'function') {
      a[2]();
    }
  };
  //
  const tracker = (function () {
    const out = {};
    const api = [
      '_addIgnoredOrganic _addIgnoredRef _addItem _addOrganic',
      '_addTrans _clearIgnoredOrganic _clearIgnoredRef _clearOrganic',
      '_cookiePathCopy _deleteCustomVar _getName _setAccount',
      '_getAccount _getClientInfo _getDetectFlash _getDetectTitle',
      '_getLinkerUrl _getLocalGifPath _getServiceMode _getVersion',
      '_getVisitorCustomVar _initData _linkByPost',
      '_setAllowAnchor _setAllowHash _setAllowLinker _setCampContentKey',
      '_setCampMediumKey _setCampNameKey _setCampNOKey _setCampSourceKey',
      '_setCampTermKey _setCampaignCookieTimeout _setCampaignTrack _setClientInfo',
      '_setCookiePath _setCookiePersistence _setCookieTimeout _setCustomVar',
      '_setDetectFlash _setDetectTitle _setDomainName _setLocalGifPath',
      '_setLocalRemoteServerMode _setLocalServerMode _setReferrerOverride _setRemoteServerMode',
      '_setSampleRate _setSessionTimeout _setSiteSpeedSampleRate _setSessionCookieTimeout',
      '_setVar _setVisitorCookieTimeout _trackEvent _trackPageLoadTime',
      '_trackPageview _trackSocial _trackTiming _trackTrans',
      '_visitCode'
    ].join(' ').split(/\s+/);
    for (const method of api) {
      out[method] = noopfn;
    }
    out._getLinkerUrl = function (a) {
      return a;
    };
    // https://github.com/AdguardTeam/Scriptlets/issues/154
    out._link = function (a) {
      if (typeof a !== 'string') { return; }
      try {
        window.location.assign(a);
      } catch {
      }
    };
    return out;
  }());
  //
  const Gat = function () {
  };
  Gat.prototype._anonymizeIP = noopfn;
  Gat.prototype._createTracker = noopfn;
  Gat.prototype._forceSSL = noopfn;
  Gat.prototype._getPlugin = noopfn;
  Gat.prototype._getTracker = function () {
    return tracker;
  };
  Gat.prototype._getTrackerByName = function () {
    return tracker;
  };
  Gat.prototype._getTrackers = noopfn;
  Gat.prototype.aa = noopfn;
  Gat.prototype.ab = noopfn;
  Gat.prototype.hb = noopfn;
  Gat.prototype.la = noopfn;
  Gat.prototype.oa = noopfn;
  Gat.prototype.pa = noopfn;
  Gat.prototype.u = noopfn;
  const gat = new Gat();
  window._gat = gat;
  //
  const gaq = new Gaq();
  (function () {
    const aa = window._gaq || [];
    if (Array.isArray(aa)) {
      while (aa[0]) {
        gaq.push(aa.shift());
      }
    }
  }());
  gaq.qf = gaq;
  window._gaq = gaq;
}());