meses-messaging/dist/classes/NewMessageUpdateHandler.js

Meses messaging SDK in JavaScript

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

var NewMessageUpdateHandler = function () {
  function NewMessageUpdateHandler(service, activeConversationName, identifier, callback, timeout) {
    _classCallCheck(this, NewMessageUpdateHandler);

    this._service = service;
    this._activeConversationName = activeConversationName;
    this._identifier = identifier;
    this._callback = callback;
    this._timeout = timeout ? timeout : 3000;
    this._lastCheckTime = new Date().getTime();
    this._intervalId = null;
  }

  /**
   * Stop checking for update
   * 
   * @return {Void}
   */


  _createClass(NewMessageUpdateHandler, [{
    key: "destroy",
    value: function destroy() {
      clearInterval(this._intervalId);
    }
  }, {
    key: "activate",
    value: function activate() {
      var checkNewMessage = this.checkNewMessage.bind(this);
      var callback = this._callback;
      var timeout = this._timeout;

      this._intervalId = setInterval(function () {
        checkNewMessage().then(function (result) {
          return callback(null, result);
        }).catch(function (err) {
          return callback(err, null);
        });
      }, timeout);
    }

    /**
     * Method for retrieving new messages
     * 
     * @return {Promise} array of messages if fulfilled.
     */

  }, {
    key: "checkNewMessage",
    value: function checkNewMessage() {
      var service = this._service;
      var activeConversationName = this._activeConversationName;
      var lastCheckTime = this._lastCheckTime;
      var now = new Date().getTime();

      return new Promise(function (resolve, reject) {
        service.getMessagesByInterval(activeConversationName, lastCheckTime, now).then(function (result) {
          this._lastCheckTime = now + 1;resolve(result);
        }.bind(this)).catch(function (err) {
          return reject(err);
        });
      }.bind(this));
    }
  }]);

  return NewMessageUpdateHandler;
}();

exports.default = NewMessageUpdateHandler;