/* eslint-disable eqeqeq -- This legacy tracker intentionally accepts string, number, null and undefined inputs. */

var pixels = [];

// 初始化状态表
var fbcalllist = {
  fbinited: null,
  gginited: null,
  kkinited: null,
  ttinited: null,
  baseLeftInitCount: 4,
  isInited: function () {
    return fbcalllist.baseLeftInitCount == 0;
  },
  initEndCallback: [],
  addInitEndCallback: function (callback) {
    fbcalllist.initEndCallback.push(callback);
  },
  noticeInitEnd: function (isTimeout = false) {
    if (isTimeout == true) {
      console.log('timeout');
    }
    if (fbcalllist.baseLeftInitCount == 0 || isTimeout == true) {
      for (var i = 0; i < fbcalllist.initEndCallback.length; i++) {
        fbcalllist.initEndCallback[i]();
      }
      // 去除监听回调
      fbcalllist.initEndCallback = [];
    }
  },
  // 模块回调
  fbInitEnd: function () {
    if (!fbcalllist.fbinited) {
      fbcalllist.baseLeftInitCount = fbcalllist.baseLeftInitCount - 1;
      fbcalllist.fbinited = true;
      fbcalllist.noticeInitEnd();
    }
  },
  ggInitEnd: function () {
    if (!fbcalllist.gginited) {
      fbcalllist.baseLeftInitCount = fbcalllist.baseLeftInitCount - 1;
      fbcalllist.gginited = true;
      fbcalllist.noticeInitEnd();
    }
  },
  kkInitEnd: function () {
    if (!fbcalllist.kkinited) {
      fbcalllist.baseLeftInitCount = fbcalllist.baseLeftInitCount - 1;
      fbcalllist.kkinited = true;
      fbcalllist.noticeInitEnd();
    }
  },
  ttInitEnd: function () {
    if (fbcalllist.ttinited != true) {
      fbcalllist.baseLeftInitCount = fbcalllist.baseLeftInitCount - 1;
      fbcalllist.ttinited = true;
      fbcalllist.noticeInitEnd();
    }
  }
};

fbcalllist.kkInitEnd();
fbcalllist.ttInitEnd();

//记录 pixcel 值
function load_pixel(pixel) { }

function getCookie(name) {
  const value = `; ${document.cookie}`;
  const parts = value.split(`; ${name}=`);
  if (parts.length === 2) return parts.pop().split(';').shift();
}

var evapi = '';
var dualstackApi = '';

evapi = window.themeConfig.api;
dualstackApi = window.themeConfig.api;

evapi = evapi + '/api/weblog';

//qilinid 预加载(下载的时候有用)
var preloadqilinid = localStorage.getItem('qilinid');
if (preloadqilinid != null && preloadqilinid != '') {
  window.qilinid = preloadqilinid;
}

// 如果有链接变化, 则保存到 localstorage 里面
function checkAdUrlChange() {
  // 如果当前的链接里面有 pixel , gcode 参数, 则保存到 localstorage 里面
  var url = window.location.href;
  var urlParams = new URLSearchParams(window.location.search);
  var pixel = urlParams.get('pixel');
  var gcode = urlParams.get('gcode');
  if ((pixel != null && pixel != '') || (gcode != null && gcode != '')) {
    localStorage.setItem('lastFbUrl', url);
  }
}
checkAdUrlChange();

// 封装的目的  因为前端框架的路由变化的原因, 会导致页面的 url 变化, 但是页面的 fbclid 参数不变
function getURLSearchParams() {
  // 如果 local storage 里面有, 则生成返回
  var lastFbUrl = localStorage.getItem('lastFbUrl');
  if (lastFbUrl != null && (lastFbUrl.indexOf('fbclid') >= 0 || lastFbUrl.indexOf('gcode') >= 0)) {
    // 先使用 ? 分割
    var url = lastFbUrl.split('?');
    if (url.length >= 2) {
      return new URLSearchParams(url[1]);
    } else {
      return new URLSearchParams(lastFbUrl);
    }
  }

  // 如果没有, 则从当前 url 里面获取
  return new URLSearchParams(window.location.search);
}

var hasGGSendPageView = false;
var hasSendPageView = false;
var fbCookieCheckAttempts = 0;
function checkFbcAndFbp(conditionname) {
  // console.log('check ...', conditionname);
  if (hasSendPageView) {
    console.log('hasSendPageView');
    return;
  }

  var fbp = getCookie('_fbp');
  var fbc = getCookie('_fbc');

  if (fbp == undefined) {
    if (fbCookieCheckAttempts >= 500) {
      fbcalllist.fbInitEnd();
      return;
    }
    fbCookieCheckAttempts += 1;
    // console.log("fbp is null", fbc, fbp);
    setTimeout(function () {
      checkFbcAndFbp('timer check');
    }, 10);
    return;
  }
  fbcalllist.fbInitEnd(); // 取到参数就是加载结束

  // 如果 url 里面没有 fbclid, 则不做提取拦截
  var url = window.location.href;
  if (url.indexOf('fbclid') >= 0) {
    if (fbc == undefined) {
      // console.log("fbc is null", fbc, fbp);
      return;
    }
  } else {
    // 检查 localstorage 里面是否有上次的 fbclid
    var lastFbUrl = localStorage.getItem('lastFbUrl');
    if (lastFbUrl != null && lastFbUrl.indexOf('fbclid') >= 0) {
      return;
    }
  }

  submitFBEvent('PageView');
  hasSendPageView = true;
}

//多个像素初始化
function initPixels(pixels_array, useOfficialOnly) {
  console.log('old call');
}
function init_facebook_pixels(pixels) {
  console.log('old call 2');
}
function loadpixel() {
  const urlParams = getURLSearchParams();
  var pixel = urlParams.get('pixel');
  if (pixel == undefined || pixel == null || pixel == '') {
    fbcalllist.fbInitEnd();
    return;
  }

  (function (f, b, e, v, n, t, s) {
    if (f.fbq) return;
    n = f.fbq = function () {
      n.callMethod ? n.callMethod.apply(n, arguments) : n.queue.push(arguments);
    };

    if (!f._fbq) f._fbq = n;
    n.push = n;
    n.loaded = !0;
    n.version = '2.0';
    n.queue = [];
    t = b.createElement(e);
    t.addEventListener('load', function () {
      window.fbq('init', pixel);

      var u = navigator.userAgent;
      console.log('userAgent = ', u);
      var isiOS = !!u.match(/\(i[^;]+;( U;)? CPU.+Mac OS X/);
      var isMac = u.indexOf('Macintosh') >= 0;
      if (isiOS || isMac) {
        console.log('is ios or mac');

        //fbq('init', '767609381614056');
        // fbq('init', '307708915641269');// 备用

        //fbq('init', '1214268193069234');
        // fbq('init', '430357023093521');// 备用1
        // fbq('init', '3348497502121560');// 备用2
      } else {
        //fbq('init', '410150778670828');
        // fbq('init', '950445440166110'); // 备用1
        // fbq('init', '1710862789652432'); // 备用2
      }
      window.fbq('track', 'PageView');
      checkFbcAndFbp('after laod node');
    });

    t.async = !0;
    t.src = v;
    s = b.getElementsByTagName(e)[0];
    s.parentNode.insertBefore(t, s);
  })(window, document, 'script', 'https://connect.facebook.net/en_US/fbevents.js');
}
try {
  loadpixel();
} catch (e) {
  console.log('load pixel error:', e);
}

// 复制 qilinid 到剪切板
function copyQilinid() {
  if (!(window.qilinid == undefined || window.qilinid == null || window.qilinid == '')) {
    console.log('qilinid is copyed');
    if (copyText(window.qilinid)) {
      window.qilinid = ''; //就拷贝一次就行
    }
  } else {
    // alert('qilin id is null');
  }
}

function copyText(text) {
  var input = document.createElement('textarea');
  document.body.appendChild(input);
  // 将文本赋值给输入框
  input.value = text;
  // 聚焦并选中
  input.focus();
  input.select();
  var result = false;
  try {
    if (document.queryCommandEnabled('copy')) {
      // 执行 copy 命令
      var success = document.execCommand('copy');
      // 移除输入框节点
      console.log('Copy Ok');
      result = success;

      // alert('success copy');
    } else {
      console.log('queryCommandEnabled is false');
      result = false;

      // alert('failed copy');
    }
  } catch (e) {
    // alert('failed copy catch exception');
    console.log(e);
  }
  input.remove();
  return result;
}

function requestEvApi(requsetUrl, callback) {
  var url = requsetUrl;
  var xhr = new XMLHttpRequest();
  xhr.open('GET', url, true);
  xhr.send();

  xhr.onload = function (data) {
    if (callback) {
      callback(this.responseText);
    }
    if (this.responseText.indexOf('Error No Access Token Find') >= 0) {
      console.error(this.responseText);
      // alert("Please config access token :   " + this.responseText);
    } else {
      console.log(this.responseText);
      // console.log('request success');
    }
  };
}

//提交 FB 事件
function submitFBEvent(eventName) {
  // 获取 cookie 里面的 fbp 参数
  var fbp = getCookie('_fbp');
  if (fbp == null) {
    fbp = '';
    console.log('fbp is null');
  } else {
    console.log('fbp is ' + fbp);
  }

  var fbc = getCookie('_fbc');

  // 从 url 里面获取 material 参数
  const urlParams = getURLSearchParams();
  var pixel = urlParams.get('pixel'); // fb 像素
  var material = urlParams.get('campaign'); // 取广告系列名
  var adgroup = urlParams.get('adgroup'); // 取广告系组名
  if (material == null) {
    material = '';
  }
  if (adgroup == null) {
    adgroup = '';
  }
  var apkch = urlParams.get('apkch') || '';
  if (apkch == '') {
    apkch = window.apkch || '';
  }
  if (window.apkchforce != undefined && window.apkchforce != null && window.apkchforce != '') {
    apkch = window.apkchforce || '';
  }
  // 查找 url 里面正则提取 ch_ 开头的协议
  if (apkch == '') {
    var lourl = window.location.href;
    var reg = /ch_([^/]*)/g;
    var match = reg.exec(lourl);
    if (match != null && match.length >= 2) {
      apkch = match[1];
    }
  }

  var paste = '';

  // 上报一次到服务器. 只要 fbc 不变化, 那就只上传一次. 因为 h5 里面访问会很高频。
  var reportfbc = localStorage.getItem('reportfbc');
  var oldqilinid = localStorage.getItem('qilinid');
  if (reportfbc == null || reportfbc != fbc || oldqilinid == null || oldqilinid == '') {
    var url =
      dualstackApi +
      '/api/sendfbevent?pixel=' +
      pixel +
      '&apkch=' +
      apkch +
      '_APK' +
      '&event=' +
      eventName +
      '&fbp=' +
      fbp +
      '&fbc=' +
      fbc +
      '&paste=' +
      paste +
      '&material=' +
      material +
      '&adgroup=' +
      adgroup +
      '&dualstack=1';
    requestEvApi(url, function (data) {
      //从 data 解析 qilinid
      var qilinid = '';
      if (data != undefined && data != null) {
        // 正则匹配  qilinid(?) 括号里面的内容
        var reg = /qilinid\((.*?)\)/g;
        var match = reg.exec(data);
        if (match != null && match.length >= 2) {
          qilinid = match[1];
        }
        window.qilinid = qilinid;
        // 保存到 localstorage 里面
        localStorage.setItem('qilinid', qilinid);
        localStorage.setItem('reportfbc', fbc);
      }
    });
  } else {
    window.qilinid = oldqilinid;
  }

  //fb 的事件提交
  if (typeof window.fbq === 'function') window.fbq('track', eventName); //'SubmitApplication'
}

// 页面统计事件
function pageEventSubmit(event_name, during = 0, mark = '') {
  // 请求 evapi 接口
  // alert(url);
  // XMLHttpRequest post  application/json
  var xhr = new XMLHttpRequest();

  var urlParams = getURLSearchParams();
  var click_id = urlParams.get('fbclid') || '';
  var apkch = urlParams.get('apkch') || '';
  if (apkch == '') {
    apkch = window.apkch || '';
  }
  if (window.apkchforce != undefined && window.apkchforce != null && window.apkchforce != '') {
    apkch = window.apkchforce || '';
  }
  // 查找 url 里面正则提取 ch_ 开头的协议
  if (apkch == '') {
    var lourl = window.location.href;
    var reg = /ch_([^/]*)/g;
    var match = reg.exec(lourl);
    if (match != null && match.length >= 2) {
      apkch = match[1];
    }
  }

  xhr.open('POST', evapi, true);
  // xhr.setRequestHeader("Content-Type","application/json");
  var data = JSON.stringify({
    click_id: click_id,
    event_name: event_name,
    apkch: apkch,
    during: during,
    mark: mark
  });
  xhr.send(data);

  xhr.onload = function (data) {
    console.log(this.responseText);
    // console.log('request success');
  };
}

var downloadIframe;
// 页面下载
function pageDownload(download_url) {
  // 取到 fbp 之后就去下载
  var retryDownTime = 0;
  function autoDownload() {
    retryDownTime = retryDownTime + 1;
    if (retryDownTime > 2 * 10) {
      //超过 2 秒, 就直接请求
      pageEventSubmit(window.down_type_name || 'download', 0, download_url);
      // window.location.href = download_url
      todoownload(download_url);
      return;
    }

    if (hasSendPageView == false && hasGGSendPageView == false) {
      setTimeout(() => {
        autoDownload();
      }, 100); // 过100毫秒再检查
    } else {
      todoownload(download_url);
    }
  }
  autoDownload();
  return;
}

// 使用 iframe 来 做 url apk 下载
function todoownload(download_url) {
  if (download_url == undefined || download_url == null || download_url == '') {
    return;
  }

  downloadIframe = document.createElement('iframe');
  downloadIframe.style.display = 'none';
  document.body.appendChild(downloadIframe);

  downloadIframe.src = download_url;
}

// -- google

var ggClientCheckAttempts = 0;
function checkGGClientEvent(conditionname) {
  if (hasGGSendPageView) {
    console.log('hasGGSendPageView');
    return;
  }

  if (window.gg_client_id == undefined) {
    if (ggClientCheckAttempts >= 500) {
      fbcalllist.ggInitEnd();
      return;
    }
    ggClientCheckAttempts += 1;
    setTimeout(function () {
      checkGGClientEvent('timer check');
    }, 10);
    return;
  }

  submitGGEvent('page_view');
  hasGGSendPageView = true;
}

// 谷歌加载
(function () {
  const urlParams = getURLSearchParams();
  var gcode = urlParams.get('gcode');
  if (gcode == undefined || gcode == null || gcode == '') {
    fbcalllist.ggInitEnd();
    return;
  }
  var script = document.createElement('script');
  script.async = true;
  script.src = 'https://www.googletagmanager.com/gtag/js?id=' + gcode;
  document.head.appendChild(script);

  window.dataLayer = window.dataLayer || [];
  function gtag() {
    window.dataLayer.push(arguments);
  }

  script.onload = function () {
    gtag('js', new Date());
    gtag('config', gcode);

    gtag('get', gcode, 'client_id', clientID => {
      console.log('this client id is: ' + clientID);
      window.gg_client_id = clientID;
      fbcalllist.ggInitEnd();
    });

    checkGGClientEvent('script.onload');
  };
})();

//提交 GG 事件
function submitGGEvent(eventName) {
  // 从 url 里面获取 material 参数
  const urlParams = new URLSearchParams(window.location.search);
  var gcode = urlParams.get('gcode'); // 谷歌代码
  if (gcode == null || gcode == '') {
    return false;
  }

  var gclid = urlParams.get('gclid') || ''; // 点击id
  var material = urlParams.get('campaign'); // 取广告系列名
  var adgroup = urlParams.get('adgroup'); // 取广告系组名
  if (material == null) {
    material = '';
  }
  if (adgroup == null) {
    adgroup = '';
  }
  var apkch = urlParams.get('apkch') || '';
  if (apkch == '') {
    apkch = window.apkch || '';
  }
  if (window.apkchforce != undefined && window.apkchforce != null && window.apkchforce != '') {
    apkch = window.apkchforce || '';
  }
  // 查找 url 里面正则提取 ch_ 开头的协议
  if (apkch == '') {
    var lourl = window.location.href;
    var reg = /ch_([^/]*)/g;
    var match = reg.exec(lourl);
    if (match != null && match.length >= 2) {
      apkch = match[1];
    }
  }

  var paste = '';

  var fbp = 'gg.' + (window.gg_client_id || '');
  var fbc = 'gg.' + (gclid || '');

  var url =
    dualstackApi +
    '/api/sendggevent?gcode=' +
    gcode +
    '&apkch=' +
    apkch +
    '_APK' +
    '&event=' +
    eventName +
    '&fbp=' +
    fbp +
    '&fbc=' +
    fbc +
    '&paste=' +
    paste +
    '&material=' +
    material +
    '&adgroup=' +
    adgroup;

  var reportgclid = localStorage.getItem('reportgclid');
  var oldqilinid = localStorage.getItem('qilinid');
  if (reportgclid == null || reportgclid != gclid || oldqilinid == null || oldqilinid == '') {
    requestEvApi(url, function (data) {
      //从 data 解析 qilinid
      var qilinid = '';
      if (data != undefined && data != null) {
        // 正则匹配  qilinid(?) 括号里面的内容
        var reg = /qilinid\((.*?)\)/g;
        var match = reg.exec(data);
        if (match != null && match.length >= 2) {
          qilinid = match[1];
        }
        window.qilinid = qilinid;
        localStorage.setItem('qilinid', qilinid);
        localStorage.setItem('reportgclid', gclid);
      }

      if (window.callLoadGtag != undefined) {
        try {
          window.callLoadGtag();
        } catch (e) {
          console.log(e);
        }
        window.callLoadGtag = undefined;
      }
    });
  } else {
    window.qilinid = oldqilinid;
  }

  return true;
}

function sureCheck() {
  if (fbcalllist.isInited()) {
    // 通知回调
    fbcalllist.noticeInitEnd();
  } else if (new Date().getTime() - fbcalllist.startCheckTime > fbcalllist.timeOutSeconds * 1000) {
    // 已超时, 直接通知掉
    fbcalllist.noticeInitEnd(true);
  } else {
    // 100 毫秒后再次检查
    setTimeout(function () {
      sureCheck();
    }, 100);
  }
}

// * 在网页内启动的时候, 调用这个方法来获得 fbp , fbc , gclid , material , adgroup, apkch
function getFbcAndFbp(bccallback, timeOutSeconds = 5) {
  fbcalllist.startCheckTime = new Date().getTime();
  fbcalllist.timeOutSeconds = timeOutSeconds;

  // 加入监听
  fbcalllist.addInitEndCallback(function () {
    var fbinfo = {};
    try {
      // 从 url 里面获取 material 参数
      const urlParams = getURLSearchParams(); //new URLSearchParams(location.search);
      fbinfo = {
        fbp: undefined,
        fbc: undefined,
        ready: false,
        gclid: undefined,

        pixel: undefined,
        gcode: undefined,

        material: undefined,
        adgroup: undefined,
        apkch: undefined,
        paste: undefined,
        creative: urlParams.get('creative')
      };

      // 遍历打印 urlParams
      // for (var pair of urlParams.entries()) {
      //     console.log(pair[0]+ ', ' + pair[1]);
      // }

      fbinfo.gcode = urlParams.get('gcode'); // 谷歌代码
      fbinfo.gclid = urlParams.get('gclid') || ''; // 点击id
      fbinfo.fbclid = urlParams.get('fbclid') || ''; // 点击id

      fbinfo.material = urlParams.get('campaign'); // 取广告系列名
      fbinfo.adgroup = urlParams.get('adgroup'); // 取广告系组名
      if (fbinfo.material == null) {
        fbinfo.material = '';
      }
      if (fbinfo.adgroup == null) {
        fbinfo.adgroup = '';
      }
      var apkch = urlParams.get('apkch') || '';
      if (apkch == '') {
        apkch = window.apkch || '';
      }
      if (window.apkchforce != undefined && window.apkchforce != null && window.apkchforce != '') {
        apkch = window.apkchforce || '';
      }
      // 查找 url 里面正则提取 ch_ 开头的协议
      if (apkch == '') {
        var lourl = window.location.href;
        var channelPattern = /ch_([^/]*)/g;
        var channelMatch = channelPattern.exec(lourl);
        if (channelMatch != null && channelMatch.length >= 2) {
          apkch = channelMatch[1];
        }
      }
      fbinfo.apkch = apkch;

      fbinfo.paste = '';

      // fb 点击进来的
      if (fbinfo.fbclid != undefined && fbinfo.fbclid != null && fbinfo.fbclid != '') {
        fbinfo.fbp = getCookie('_fbp');
        fbinfo.fbc = getCookie('_fbc');
        fbinfo.pixel = urlParams.get('pixel'); // fb 像素
      }
      //
      if (fbinfo.gcode != undefined && fbinfo.gcode != null && fbinfo.gcode != '') {
        fbinfo.fbp = 'gg.' + (window.gg_client_id || '');
        fbinfo.fbc = 'gg.' + (fbinfo.gclid || '');
        fbinfo.pixel = fbinfo.gcode;
      }

      fbinfo.ready = false;
      if (
        fbinfo.fbp != undefined &&
        fbinfo.fbp != null &&
        fbinfo.fbp != '' &&
        fbinfo.fbc != undefined &&
        fbinfo.fbc != null &&
        fbinfo.fbc != ''
      ) {
        fbinfo.ready = true;
      }

      //  campaign , campaign_id 的提取
      if (fbinfo.material != undefined && fbinfo.material != null && fbinfo.material != '') {
        // fb
        if (fbinfo.fbp != undefined && fbinfo.fbp != null && fbinfo.fbp != '' && fbinfo.fbp.indexOf('fb.') >= 0) {
          // "{{campaign.name}} ({{campaign.id}})"  解析出 campaign.name 和 campaign.id
          var campaignPattern = /(.*)\((.*)\)/g;
          var campaignMatch = campaignPattern.exec(fbinfo.material);
          if (campaignMatch != null && campaignMatch.length >= 3) {
            fbinfo.campaign = campaignMatch[1];
            fbinfo.campaign_id = campaignMatch[2];
          }
        }
        // gg
        if (fbinfo.fbp != undefined && fbinfo.fbp != null && fbinfo.fbp != '' && fbinfo.fbp.indexOf('gg.') >= 0) {
          fbinfo.campaign = fbinfo.material;
          fbinfo.campaign_id = fbinfo.material;
        }
      }
      // ad , adset , adset_id
      if (fbinfo.adgroup != undefined && fbinfo.adgroup != null && fbinfo.adgroup != '') {
        // fb
        if (fbinfo.fbp != undefined && fbinfo.fbp != null && fbinfo.fbp != '' && fbinfo.fbp.indexOf('fb.') >= 0) {
          // "{{adset.name}} ({{adset.id}})"  解析出 , adset.name , adset.id
          var adGroupPattern = /(.*)\((.*)\)/g;
          var adGroupMatch = adGroupPattern.exec(fbinfo.adgroup);
          if (adGroupMatch != null && adGroupMatch.length >= 3) {
            fbinfo.adset = adGroupMatch[1];
            fbinfo.adset_id = adGroupMatch[2];
          }
          // 从 creative 里面提取 ad  ad_id
          var creativePattern = /(.*)\((.*)\)/g;
          var creativeMatch = creativePattern.exec(fbinfo.creative);
          if (creativeMatch != null && creativeMatch.length >= 3) {
            fbinfo.ad = creativeMatch[1];
            fbinfo.ad_id = creativeMatch[2];
          }
        }
        // gg.
        if (fbinfo.fbp != undefined && fbinfo.fbp != null && fbinfo.fbp != '' && fbinfo.fbp.indexOf('gg.') >= 0) {
          fbinfo.ad = fbinfo.creative;
          fbinfo.ad_id = fbinfo.creative;
          fbinfo.adset = fbinfo.adgroup;
          fbinfo.adset_id = fbinfo.adgroup;
        }
      }

      fbinfo._fbp = fbinfo.fbp;
      fbinfo._fbc = fbinfo.fbc;

      // if (isNaN(fbinfo.ad_id)){
      //     fbinfo.ad_id = '';
      // }
      // if(isNaN(fbinfo.adset_id)){
      //     fbinfo.adset_id = '';
      // }
    } catch (e) {
      console.log('parse error:', e);
    }

    if (typeof bccallback === 'function') bccallback(fbinfo);
  });

  sureCheck();
}

// 在 fbqreq 事件后面调用
function tryFbBind(userid, uuid, channel, fbclid) {
  if (fbclid && fbclid.length > 0) {
    return;
  }
  setTimeout(function () {
    var initUrl = dualstackApi + '/api/init-h5-client';
    var xhr = new XMLHttpRequest();
    xhr.open('POST', initUrl, true);
    xhr.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');

    var data = 'machine_serial=' + uuid + '&channel=' + channel + '&userid=' + userid;
    xhr.send(data);

    xhr.onload = function (data) { };
  }, 10);
}

// Public API consumed by legacy landing pages and native shells.
Object.assign(window, {
  pixels,
  load_pixel,
  initPixels,
  init_facebook_pixels,
  copyQilinid,
  pageDownload,
  getFbcAndFbp,
  tryFbBind
});