migme-ferry/lib/data/socket.js

Ferry transports packets to and from fusion/fission

'use strict';

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

var _websocket = require('../config/websocket');

var _websocket2 = _interopRequireDefault(_websocket);

var _ferryEvent = require('../events/ferry-event');

var _ferryEvent2 = _interopRequireDefault(_ferryEvent);

var _dispatcher = require('../events/dispatcher');

var _dispatcher2 = _interopRequireDefault(_dispatcher);

var _debug = require('../utils/debug');

var _debug2 = _interopRequireDefault(_debug);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function SocketConnection(uri) {
  var _uri = uri;
  var _socket = null;

  return {
    get uri() {
      return _uri;
    },

    get socket() {
      return _socket;
    },

    createSocket: function createSocket(uri) {
      return new _websocket2.default(uri);
    },
    connect: function connect() {
      var _this = this;

      _socket = this.createSocket(_uri);

      _socket.onopen = function () {
        (0, _debug2.default)('Socket Open at:', _uri);
        _dispatcher2.default.emit(_ferryEvent2.default.CONNECTED);
      };

      _socket.onclose = function (e) {
        (0, _debug2.default)('Socket closed');
        _dispatcher2.default.emit(_ferryEvent2.default.CONNECTION_CLOSED, e);
        _this.close();
      };

      _socket.onmessage = function (e) {
        (0, _debug2.default)('Socket Message recieved:', e.data);
        var data = typeof e.data === 'string' ? JSON.parse(e.data) : e.data;
        _dispatcher2.default.emit(_ferryEvent2.default.PACKET_RECEIVED, data);
      };

      _socket.onerror = function (e) {
        (0, _debug2.default)('Socket error:', e);
        _dispatcher2.default.emit(_ferryEvent2.default.PACKET_FAILED, e);
      };
    },
    close: function close() {
      if (_socket) {
        _socket.close();
        _socket.onopen = _socket.onclose = null;
        _socket.onmessage = _socket.onerror = null;
        _socket = null;
        _dispatcher2.default.emit(_ferryEvent2.default.CONNECTION_CLOSED);
      }
    },
    send: function send(packet) {
      if (!_socket || _socket.readyState === _websocket2.default.CLOSING || _socket.readyState === _websocket2.default.CLOSED) {
        _dispatcher2.default.emit(_ferryEvent2.default.CONNECTION_CLOSED);
        throw new Error('Socket not connected');
      }

      if (_socket.readyState === _websocket2.default.CONNECTING) {
        throw new Error('Socket is still connecting');
      }

      (0, _debug2.default)('Socket send:', packet);
      _socket.send(JSON.stringify(packet.toJSON()));
    }
  };
}
module.exports = exports['default'];