chat-ts-sdk/packages/cts-api/src/meta.ts

export function getMetaData() {
  const nAgt = navigator.userAgent;
  let browserName = navigator.appName;
  let fullVersion = `${parseFloat(navigator.appVersion)}`;
  let majorVersion = parseInt(navigator.appVersion, 10);
  let nameOffset;
  let verOffset;
  let ix;

  // In Opera, the true version is after "Opera" or after "Version"
  if ((verOffset = nAgt.indexOf('Opera')) !== -1) {
    browserName = 'Opera';
    fullVersion = nAgt.substring(verOffset + 6);
    if ((verOffset = nAgt.indexOf('Version')) !== -1) fullVersion = nAgt.substring(verOffset + 8);
  } else if ((verOffset = nAgt.indexOf('MSIE')) !== -1) {
    // In MSIE, the true version is after "MSIE" in userAgent
    browserName = 'Microsoft Internet Explorer';
    fullVersion = nAgt.substring(verOffset + 5);
  } else if ((verOffset = nAgt.indexOf('Chrome')) !== -1) {
    // In Chrome, the true version is after "Chrome"
    browserName = 'Chrome';
    fullVersion = nAgt.substring(verOffset + 7);
  } else if ((verOffset = nAgt.indexOf('Safari')) !== -1) {
    // In Safari, the true version is after "Safari" or after "Version"
    browserName = 'Safari';
    fullVersion = nAgt.substring(verOffset + 7);
    if ((verOffset = nAgt.indexOf('Version')) !== -1) fullVersion = nAgt.substring(verOffset + 8);
  } else if ((verOffset = nAgt.indexOf('Firefox')) !== -1) {
    // In Firefox, the true version is after "Firefox"
    browserName = 'Firefox';
    fullVersion = nAgt.substring(verOffset + 8);
  } else if ((nameOffset = nAgt.lastIndexOf(' ') + 1) < (verOffset = nAgt.lastIndexOf('/'))) {
    // In most other browsers, "name/version" is at the end of userAgent
    browserName = nAgt.substring(nameOffset, verOffset);
    fullVersion = nAgt.substring(verOffset + 1);
    if (browserName.toLowerCase() === browserName.toUpperCase()) {
      browserName = navigator.appName;
    }
  }
  // trim the fullVersion string at semicolon/space if present
  if ((ix = fullVersion.indexOf(';')) !== -1) fullVersion = fullVersion.substring(0, ix);
  if ((ix = fullVersion.indexOf(' ')) !== -1) fullVersion = fullVersion.substring(0, ix);

  majorVersion = parseInt(`${fullVersion}`, 10);
  if (isNaN(majorVersion)) {
    fullVersion = `${parseFloat(navigator.appVersion)}`;
    majorVersion = parseInt(navigator.appVersion, 10);
  }

  let OSName = 'Unknown OS';
  if (navigator.appVersion.indexOf('Win') !== -1) OSName = 'Windows';
  if (navigator.appVersion.indexOf('Mac') !== -1) OSName = 'MacOS';
  if (navigator.appVersion.indexOf('X11') !== -1) OSName = 'UNIX';
  if (navigator.appVersion.indexOf('Linux') !== -1) OSName = 'Linux';

  let isMobile = false; // initiate as false
  // device detection
  if (
    /(android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|ipad|iris|kindle|Android|Silk|lge |maemo|midp|mmp|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|windows (ce|phone)|xda|xiino/i.test(
      navigator.userAgent
    ) ||
    /1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|\-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw\-(n|u)|c55\/|capi|ccwa|cdm\-|cell|chtm|cldc|cmd\-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc\-s|devi|dica|dmob|do(c|p)o|ds(12|\-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(\-|_)|g1 u|g560|gene|gf\-5|g\-mo|go(\.w|od)|gr(ad|un)|haie|hcit|hd\-(m|p|t)|hei\-|hi(pt|ta)|hp( i|ip)|hs\-c|ht(c(\-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i\-(20|go|ma)|i230|iac( |\-|\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\/)|klon|kpt |kwc\-|kyo(c|k)|le(no|xi)|lg( g|\/(k|l|u)|50|54|\-[a-w])|libw|lynx|m1\-w|m3ga|m50\/|ma(te|ui|xo)|mc(01|21|ca)|m\-cr|me(rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(\-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)\-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|\-([1-8]|c))|phil|pire|pl(ay|uc)|pn\-2|po(ck|rt|se)|prox|psio|pt\-g|qa\-a|qc(07|12|21|32|60|\-[2-7]|i\-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h\-|oo|p\-)|sdk\/|se(c(\-|0|1)|47|mc|nd|ri)|sgh\-|shar|sie(\-|m)|sk\-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h\-|v\-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl\-|tdg\-|tel(i|m)|tim\-|t\-mo|to(pl|sh)|ts(70|m\-|m3|m5)|tx\-9|up(\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|\-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(\-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas\-|your|zeto|zte\-/i.test(
      navigator.userAgent.substr(0, 4)
    )
  ) {
    isMobile = true;
  }

  return {
    device: isMobile ? 'mobile' : 'pc',
    os: OSName,
    os_version: '',
    app: 'WebLiveClient',
    app_version: fullVersion,
    tag: {}
  };
}