// import Vue from 'vue'
import _ from 'lodash'
import Stomp from 'stompjs'

const Plugin = {
  install (vue, options) {
    // 4. 添加实例方法
    vue.prototype.$stomp = function (subscribes = {}) {
      let msg
      // 获得Stomp client对象
      const ws = new WebSocket(options.host)
      const client = Stomp.over(ws)

      // 成功回调
      const connectCallback = function (x) {
        // 返回结果
        // '/exchange/qrcode.topic/qrcode'
        Object.keys(subscribes)
          .filter(p => _.isFunction(subscribes[p]))
          .forEach(key => {
            client.subscribe(key, subscribes[key])
          })
      }

      // 失败回调
      const errorCallback = function (error) {
        msg = error
      }
      client.heartbeat.outgoing = options.heartbeatOutgoing
      client.heartbeat.incoming = options.heartbeatIncoming
      // client.reconnect.delay = options.reconnectDelay
      // 添加参数  回调函数
      client.connect(options.connectHeaders, connectCallback, errorCallback)
      if (options.debug) {
        client.debug = function (str) {
          console.log(str, 'debug')
        }
      }
      return msg
    }
  }
}

export default Plugin