kea-socket.io/lib/utils.js

Socket.io binding for Kea store

'use strict';

exports.__esModule = true;
exports.wildcardMiddleware = exports.getCurrentName = exports.getEmitters = exports.trimNamespace = exports.isSocketIo = exports.isFunction = undefined;

var _kea = require('kea');

var isFunction = exports.isFunction = function isFunction(obj) {
  return typeof obj === 'function';
};

var isSocketIo = exports.isSocketIo = function isSocketIo(obj) {
  return !!obj && (isFunction(obj.on) && isFunction(obj.emit) || Array.isArray(obj) && obj.every(function (item) {
    return isSocketIo(item);
  }));
};

var trimNamespace = exports.trimNamespace = function trimNamespace(namespaced) {
  return namespaced.split('/').pop();
};

var getEmitters = exports.getEmitters = function getEmitters(name) {
  var _getPluginContext = (0, _kea.getPluginContext)('kea-socket.io'),
      _getPluginContext$emi = _getPluginContext.emitters,
      emitters = _getPluginContext$emi === undefined ? {} : _getPluginContext$emi;

  if (name) {
    return emitters[name];
  }
  return emitters;
};

var getCurrentName = exports.getCurrentName = function getCurrentName(name) {
  var prefix = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : '';

  if (name.indexOf(prefix) === 0) {
    return name.replace(prefix, '');
  }
  return name;
};

var wildcardMiddleware = exports.wildcardMiddleware = function wildcardMiddleware(Emitter) {
  var emit = Emitter.prototype.emit;

  function onevent(packet) {
    var args = packet.data || [];
    if (packet.id != null) {
      args.push(this.ack(packet.id));
    }
    emit.call(this, '*', packet);
    return emit.apply(this, args);
  }

  return function (socket, next) {
    if (socket.onevent !== onevent) {
      socket.onevent = onevent;
    }
    return next ? next() : null;
  };
};