@arcblock/analytics-js/lib/browser.js

Analytics Javascript SDK for API Service by ArcBlock

'use strict';

const BaseSDK = require('./base');
const Cookie = require('js-cookie');

const COOKIE_DEVICE_ID = 'abt_did';

class AnalyticsBrowserSDK extends BaseSDK {
  static initialize(source) {
    this.client = new AnalyticsBrowserSDK(source);
  }

  _getDeviceId() {
    let deviceId = Cookie.get(COOKIE_DEVICE_ID);
    if (deviceId) {
      return deviceId;
    }

    deviceId = this._genUUID();
    Cookie.set(COOKIE_DEVICE_ID, deviceId, this._getCookieOptions());
    return deviceId;
  }

  _getCookieOptions() {
    const options = { expires: 365, path: '/' };
    const { host } = window.location; // eslint-disable-line
    const parts = host.split('.');
    if (parts.length === 1) {
      options.domain = '';
    } else {
      // Remember the cookie on all sub domains.
      if (parts.length > 2) {
        parts.shift();
      }
      options.domain = '.' + parts.join('.');
    }
    return options;
  }

  _getEventAttrs() {
    return {
      deviceId: this._getDeviceId(),
      clientTimestamp: new Date().toISOString()
    };
  }
}

module.exports = AnalyticsBrowserSDK;
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