src/core/Device.js

import * as DataSync from './util/DataSync';
import * as Log from './util/Log';

/**
 * User device
 * @access protected
 */
export default class Device {
  /**
   * Create a device
   * @param {Webcom/api.DataSnapshot|object} snapData The data snapshot
   * @access protected
   */
  constructor(snapData) {
    const values = Object.assign({}, snapData.val());
    /**
     * Device's unique id
     * @type string
     */
    this.uid = snapData.name();
    /**
     * Device's OS
     * @type {string}
     */
    this.os = values.os;
    /**
     * Device's userAgent
     * @type {string}
     */
    this.userAgent = values.userAgent;
    /**
     * Device's last know status
     * - CONNECTED
     * - NOT_CONNECTED
     * - SLEEPING
     * @type {string}
     */
    this.status = values.status;
    /**
     * Device's sdk
     * @type {{reach: string, webcom: string}}
     */
    this.sdk = values.sdk;
    // TODO #Feat: Add 'extra' property for unrestricted additional information ?
  }


  /**
   * Get a device by its user uid and its uid
   * @access private
   * @param {string} userUid The user's uid
   * @param {string} deviceUid The device's uid
   * @returns {Promise<Device, Error>}
   */
  static get(userUid, deviceUid) {
    // due to the problem of long list, some uid (uid of participant)
    // can have a : instead of /
    const newUid = userUid.replace(/:/g, '/');
    return DataSync.get(`_/devices/${newUid}/${deviceUid}`)
      .then(snapData => (snapData ? new Device(snapData) : null))
      .catch(Log.r('Device#get'));
  }
}