const WS_BASE_URL = process.env.VUE_APP_MSG_URL;

let prevTime = 0;
let socketMsgQueue = []; // socket消息队列
let sendHeartTimer = null;

const actions = {
  // 初始化socket
  initSocket({ commit, dispatch, state, rootState }) {
    if (state.lockSocket) return;
    const { token } = rootState.user;
    if (!token) return;
    commit('setLockSocket', true);
    commit('setSocket', uni.connectSocket({ url: WS_BASE_URL, complete: () => {} }));
    dispatch('onSocketOpen');
    dispatch('onSocketMessage');
    dispatch('onSocketClose');
    state.socket.onError(errMsg => console.error(errMsg));
    commit('setLockSocket', false);
  },

  // 监听ws打开
  onSocketOpen({ dispatch, commit, state }) {
    // eslint-disable-next-line no-unused-vars
    state.socket.onOpen(res => {
      // console.log('ws open: ', res);
      commit('setConnected', true);
      prevTime = Date.now();
      // this.auth();
      dispatch('auth');
      for (let i = 0; i < socketMsgQueue.length; i++) {
        dispatch('sendSocketMessage', socketMsgQueue[i]);
      }
      socketMsgQueue = [];
    });
  },

  // 监听收到的ws消息
  onSocketMessage({ dispatch, state }) {
    state.socket.onMessage(res => {
      // console.log('收到消息:', res);
      prevTime = Date.now();
      if (!res || !res.data || !JSON.parse(res.data)) return;
      const resData = JSON.parse(res.data);
      const { messageSet, ackId } = resData;
      // 处理消息体对象
      messageSet.forEach(item => dispatch('handleMessagesData', item));
      ackId && dispatch('sendSocketMessage', { type: 'Ack', data: { ackId } });
    });
  },

  /**
   * 处理收到的消息内容
   * @param {object} item 单个消息体对象
   */
  handleMessagesData({ dispatch, commit }, item) {
    const data = JSON.parse(item.data);
    switch (data.type) {
      case 'Sync': // 开始某个节点
        commit('messages/messagesAdd', { message: data, type: 'syncMessages' }, { root: true });
        break;
      case 'taskStatus': // 任务状态修改相关消息
        commit('task/setTaskStatus', data.data, { root: true });
        break;
      // case 'Chrome': // !收到开始游戏的消息
      //   console.log('handleMessagesData', data);
      //   // @ts-ignore
      //   util.openGameApp({
      //     type: data.data.type,
      //     projectId: data.data.projectId,
      //     id: data.data.recordId,
      //     token: rootState.user.token,
      //   });
      //   break;
      // case 'Deliver': // 交付物相关消息
      //   commit('messages/messagesAdd', { type: 'checkMessages', message: data }, { root: true });
      //   break;
      case 'ChannelStatus':
        dispatch('handleAuthMessage', data);
        break;
      // case 'switchoverProject': // 康复相关消息
      //   dispatch('home/getProjectById', data.data.projectId, { root: true });
      //   break;
      // case 'startDrill': // 康复开始训练相关消息
      //   console.log('setStartDrillInfo', data.data);
      //   commit('home/setStartDrillMessages', data.data, { root: true });
      //   break;
      default:
        break;
    }
  },

  // 发送消息
  sendSocketMessage({ state }, data) {
    if (state.connected) {
      const msg = JSON.stringify({ toDomain: 'Server', data: JSON.stringify(data) });
      state.socket.send({ data: msg });
    } else {
      socketMsgQueue.push(data);
    }
  },

  // 监听关闭事件
  onSocketClose({ dispatch, commit, state }) {
    // console.log('onSocketClose');
    state.socket.onClose(() => {
      commit('setConnected', false);
      if (sendHeartTimer) clearInterval(sendHeartTimer);
      setTimeout(() => {
        dispatch('initSocket');
      }, 300);
    });
  },

  // websocket发送channelId进行认证
  auth({ dispatch, rootState }) {
    const { token } = rootState.user;
    if (!token) return;
    const data = { type: 'Auth', data: { token } };
    dispatch('sendSocketMessage', data);
  },

  // 心跳检测
  sendHeart({ dispatch, state }) {
    if (sendHeartTimer) clearInterval(sendHeartTimer);
    sendHeartTimer = setInterval(() => {
      if (Date.now() - prevTime >= 15000) {
        dispatch('sendSocketMessage', { type: 'Ping' });
        if (Date.now() - prevTime >= 20000) {
          state.socket.close();
        }
      }
    }, 5000);
  },

  /**
   * 处理auth认证返回的ChannelStatus消息
   * @param {object} data 消息内容对象
   */
  handleAuthMessage({ commit, dispatch }, data) {
    if (data.data.authed) {
      dispatch('sendHeart');
    } else {
      uni.$u.toast('消息系统认证失败, 请退出重新登录');
      uni.$t.removeStorageSync('anyringToken');
      commit('setSocket', null);
    }
  },
};

export default actions;