/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
'use strict'

import { extend } from '../utils'

const _senderMap = {}

export default function Sender (instance) {
  if (!(this instanceof Sender)) {
    return new Sender(instance)
  }
  this.instanceId = instance.instanceId
  this.weexInstance = instance
  _senderMap[this.instanceId] = this
}

function _send (instanceId, msg) {
  callJS(instanceId, [msg])
}

Sender.getSender = function (instanceId) {
  return _senderMap[instanceId]
}

Sender.prototype = {

  // perform a callback to jsframework.
  performCallback: function (callbackId, data, keepAlive) {
    const args = [callbackId]
    data && args.push(data)
    keepAlive && args.push(keepAlive)
    _send(this.instanceId, {
      method: 'callback',
      args: args
    })
  },

  fireEvent: function (ref, type, func, event) {
    func.extra && extend(event, func.extra())
    _send(this.instanceId, {
      method: 'fireEvent',
      args: [ref, type, event, func.updator && func.updator()]
    })
  }

}