utm-tracking/dist/main.js

For tracking utm

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports["default"] = void 0;

function getReferrerSessions() {
  return JSON.parse(window.localStorage.getItem('referrerSessions') || null);
}

function getDomainFromUrl(url) {
  var result;
  var match = url.match(/^(?:https?:\/\/)?(?:[^@\n]+@)?(?:www\.)?([^:\/\n\?\=]+)/im);

  if (match) {
    result = match[1];
    match = result.match(/^[^\.]+\.(.+\..+)$/);

    if (match) {
      result = match[1];
    }
  }

  return result;
}

function minutesPassed(timestamp) {
  var d1 = timestamp;
  var d2 = new Date().getTime();
  return (d2 - d1) / (1000 * 60);
}

var _default = {
  /**
   * Set 'referrerSessions' in localStorage to determine where user from
   * @param {Number} overTimeLimit How long will referrerSessions expire ? (minute)
   */
  setReferrerSessions: function setReferrerSessions(overTimeLimit) {
    var time = overTimeLimit || 30;
    var referrerSessions = getReferrerSessions();

    if (referrerSessions && minutesPassed(referrerSessions.timestamp) <= time) {
      return;
    }

    window.localStorage.setItem('referrerSessions', JSON.stringify({
      referrer: getDomainFromUrl(document.referrer),
      timestamp: new Date().getTime()
    }));
  },

  /**
   * according to different source to return correct url
   * @param {string} link where you want to go ?
   */
  mergeUrlParams: function mergeUrlParams(link) {
    var referrerSessions = getReferrerSessions();
    var isHaveUtmParams = /utm/.test(window.location.search);

    if (isHaveUtmParams) {
      return "".concat(link, "/").concat(window.location.search);
    }

    if (!referrerSessions.referrer) {
      return link;
    }

    return "".concat(link, "/?utm_source=").concat(referrerSessions.referrer, "&utm_medium=searchResult&utm_campaign=search");
  }
};
exports["default"] = _default;