/**
 * Description: atmosphere服务类
 * Author: tiansiyuan
 * Date: 2020/5/16 13:49:15
 */

import store from '@/store'
import { updateStatusbyRoomIdAndUserId } from '@/api/plotting/plotting'

const atmosphere = window.atmosphere || {}

const RoomService = {
  /**
   *  创建标绘对象
   *  url：标绘room的地址
   */
  create(url) {
    const service = {
      showPrompt: true,
      parent: null,
      message: {
        onOpen: '连接标绘房间成功',
        onClientTimeout: '消息发送失败',
        onError: '标绘服务器内部错误，请刷新页面重新接入',
        onReconnect: '掉线重连....请稍候',
        onTransportFailure: '客户端不支持websocket，请更换浏览器',
      },
      onMessage(msg) {},
      onReopen() {},
    }

    let connectedEndPoint = null

    service.join = function (userType, id, roomId) {
      debugger
      // 如果url为空，说明还没有创建协同标绘房间。
      // 如果connectedEndPoint不为空，说明当前已经连接到一个协同标绘房间，重新连接需要先退出当前房间。
      if (url !== '' && connectedEndPoint == null) {
        let request = {
          url: url,
          transport: 'websocket',
          fallbackTransport: 'websocket', // 只支持websocket方式
          logLevel: 'debug',
          maxReconnectOnClose: 3, // 重连三次
          reconnectInterval: 15000, // 每次重连的时间间隔为2秒
          reconnectOnServerError: true,
          // 成功建立连接回调函数
          onOpen(response) {
            console.log('成功链接', response)
            if (service.showPrompt) {
              console.log('标绘房间连接成功！')
            }
            switch (userType) {
              case 'platform':
                if (id !== store.getters.hostOrgId) {
                  service.send({
                    id: id,
                    status: 1,
                    userType: userType,
                    roomId: roomId,
                    type: 'status',
                  })
                }
                break
              case 'app':
                service.send({
                  id: id,
                  status: 1,
                  userType: userType,
                  roomId: roomId,
                  type: 'status',
                })
                updateStatusbyRoomIdAndUserId(roomId, id, 1)
                break
              default:
            }
          },
          onReopen(request, response) {
            location.reload()
          },
          // 收到atmosphere消息的回调函数
          onMessage(response) {
            if (
              response.state === 'messageReceived' &&
              response.status === 200
            ) {
              if (
                service.onMessage != null &&
                typeof service.onMessage == 'function'
              ) {
                service.onMessage(response.responseBody)
              }
            }
          },
          // 客户端request超时回调函数
          onClientTimeout(request) {
            if (service.showPrompt) {
              console.log('onClientTimeout')
            }
          },
          // 收到未知错误回调函数
          onError(response) {
            console.log('res', response)
            if (service.showPrompt) {
              console.log('onError')
            }
          },
          // 成功重建连接回调函数
          onReconnect(request, response) {
            if (service.showPrompt) {
            }
          },
          // transport类型不支持回调函数
          onTransportFailure(errMsg, request) {
            if (service.showPrompt) {
            }
          },
        }

        connectedEndPoint = atmosphere.subscribe(request)
      } else {
        console.log(
          'No room has been created or connection has been established already!'
        )
      }
    }

    /**
     *  退出标绘room
     */
    service.leave = function () {
      atmosphere.unsubscribe()
      connectedEndPoint = null
    }

    /**
     *  发送标绘内容
     */
    service.send = function (message) {
      console.log('通过atmosphere发送的消息：%o', message)
      if (connectedEndPoint == null) {
        console.log('please establish the connection before sending message!')
        return false
      }

      if (connectedEndPoint.request.isOpen === false) {
        console.log('current connection is closed!')
        return false
      }
      const msg = JSON.stringify(message)
      connectedEndPoint.push(msg)
    }

    return service
  },
}

export default RoomService