import Vue from "vue";
import GLOBAL_OBJ from "./global";
import "./EventHub";
import { setMsgData } from "./message";
// 心跳间隔
const HEART_BEAT_TIME = 15000;
// 心跳最大失败次数（超过此次数重连）
const HEART_BEAT_FAIL_NUM = 1;
// 重连间隔
const RECONNECT_TIME = 3000;

export default class Socket {
  constructor(option) {
    this.socket = null;
    this._options = option;
    this.timeoutObj = null;
    this.robotObj = {};
    this.selfCloseStatus = false
    this.reconnectLock = false
    console.log("Socket init", GLOBAL_OBJ);
    // 失败回答 
    this.failMsg = {}
  }
  getToken() {
    return new Promise((resolve, reject) => {
      console.log('-----开始请求token-----')
      uni.request({
        method: "GET",
        dataType: "json",
        // url: `http://192.168.124.118:8083/xcx/framework/agent/${this._options.agentId}`,
        // url: `https://des.js-dyyj.com/getDemoToken?id=${this._options.agentId}`,
        url: `https://des.dayunyuanjian.cn/getDemoToken?id=${this._options.agentId}`,
        success: (res) => {
          console.log("请求token成功", res);
          resolve(res);
        },
        fail: (err) => {
          wx.showToast({
            title: "创建失败",
            icon: "none",
          });
          console.log("请求token失败", err);
          reject()
        },
      });
    });
  }
  async init() {
    return  this.createSocket();
  }
  async createSocket(options) {
    return new Promise(async (resolve, reject) => {
      const origin = "wss://wss.lke.cloud.tencent.com";
      // const origin = "wss://des.dayunyuanjian.cn";
      let path = "/v1/qbot/chat/conn/";
      let initSocket = 1;
      let mainToken
      const res = await this.getToken();
        if (
          res &&
          res.data &&
          res.data.apiResponse &&
          res.data.apiResponse.Token
        ) {
          mainToken = res.data.apiResponse.Token;
        }
        // 机器人信息
        this.robotObj = res.data.requestInfo; 
        console.log("获取token：", mainToken);

      if (this.selfCloseStatus) {return}

      // 建立连接
      const socket = wx.connectSocket({
        url: `${origin}${path}?EIO=4&transport=websocket`,
        success: (e) => {
          console.log("创建长链接成功", e);
        },
        complete: (e) => {
          console.log("socket - complete", e);

        },
      });
      this.socket = socket;
      GLOBAL_OBJ.SOCKET = this;

      socket.onOpen((e) => {
        // 监听发送
        if (initSocket === 1) {
          const token = mainToken || "";
          if (token) {
            // cb({ token: token });
            this.send({
              data:
                "40" +
                JSON.stringify({
                  token: token,
                }),
            });
          } else {
            // cb({ token: '' });
            this.send({
              data: JSON.stringify({
                token: "",
              }),
            });
          }
          initSocket++;
        } else {
          const token = mainToken || "";
          // cb({ token: token });
          this.send({
            data: JSON.stringify({
              token: token,
            }),
          });
          initSocket++;
        }

        options && options.complete && options.complete()


        if (this.selfCloseStatus) {
          this.destroy()
        }
      });

      socket.onMessage((e) => {
        console.log("socket.onMessage", e);
        const { data } = e;
        if (data == 2) {
          // 触发浪涌
          this.send({
            data: '3',
          });
        }

        const params = this.getMsgData(data);
        const { type } = params ?? {};
        this.on(type, params);
        const num = "" + data.substring(0, 2);
        if (num == "40") {
          console.log("创建对话成功", e);
          // 发送失败信息
          this.sendFailMsg()
          resolve();
          // 链接成功
        }

        this.createInter();
      });
      // 失败
      socket.onError((e) => {
        console.log("websocket error 长链接报错", e);
        // 失败重建
        this.doConnectTimeout();
        //
      });
      // 关闭
      socket.onClose((e) => {
        console.log("websocket close 长链接关闭", e);
        this.connectSocketTimeOut && clearTimeout(this.connectSocketTimeOut);
        //非自动关闭重连
        if (e.code != 1000) {
          this.doConnectTimeout();
        }
      });
    });
  }

  doConnectTimeout() {
    if (this.selfCloseStatus){
      // 主动退出 不在重连
      return
    }
    // 重连一次
    console.log("websocket 异常关闭 开始重连");
    this.connectSocketTimeOut = setTimeout(() => {
        this.createSocket({
          complete: function (res) {
            // this.reconnectLock = false;
          },
        });
      }, RECONNECT_TIME);
  }

  onConnect(e) {
    console.log("websocket connect", e);
  }

  send(e, t) {
    console.log("开始请求 websocket send", e);
    this.socket && this.socket.send(e);
    this.createInter();
  }

  sendFailMsg() {
    const content = Object.values(this.failMsg)
    const lastFailMsgIndex = content.findLastIndex(it => !it.status)
    if (lastFailMsgIndex > -1) {
      const msg = content[lastFailMsgIndex]
      console.log('开始重新发送失败信息', msg)
      // 重新发送失败的信息
      this.send(msg.data.socketParams,msg.data.contentType)
    }
  }
  getMsgData(e) {
    if (e && typeof e == "string") {
      const status = e.indexOf("42");
      const index = e.indexOf("[");
      if (status > -1 && index > -1) {
        const txt = e.substring(index);
        const item = JSON.parse(txt);
        const [type, obj] = item;
        const payload = obj.payload ? obj.payload : {};
        const params = {
          chatId: this._options.agentId,
          type,
          contentType: "text", //默认文字
          timestamp: new Date().getTime(),
          ...payload,
        };
        // 缓存聊天记录
        return params;
      }
    }
    return null;
  }

  emit(type, params, contentType) {
    console.log("emit", type, params);
    const tmpParams = params
    tmpParams.incremental = true
    const data = {
      //incremental:true,
      payload: tmpParams 

    };
    switch (type) {
      case "send":
        // 发送消息
        const socketParams = { data: "42" + JSON.stringify(["send", data]) };
        this.send(socketParams, contentType);
        
        console.log(params.request_id + '发送内容', data)
        if (!params.is_msg_status) {
          // 不写入缓存中
          return;
        }
        const msgParams = {
          chatId: this._options.agentId,
          contentType,
          type,
          timestamp: new Date().getTime(),
          ...params,
          content: params.realContent ? params.realContent : params.content,
        };
        msgParams && setMsgData(msgParams);
        this.failMsg[params.request_id] = {
          data: {
            socketParams, 
            contentType
          },
          statue: false
        }
        break;
    }
  }
  // 监听
  on(type, params) {
    switch (type) {
      case "reply":
        // 回复结束
        const tmpParams = {
          ...params,
          name: this.robotObj.name,
          headImage: this.robotObj.headImage,
        };
        if (
          params &&
          params.type === "reply" &&
          !params.is_from_self &&
          params.can_rating
        ) {
          // 回复消息
          console.log('reply回复内容', tmpParams.content, tmpParams)
          this._options.onMessage && this._options.onMessage(tmpParams);
        }

        if (!params.is_from_self && params.is_final) {
          if (this.failMsg[tmpParams.request_id]) {
            this.failMsg[tmpParams.request_id].status = true
            // 已回复 状态为true
          }
          
          // 回复结束 写入缓存
          // setMsgData(tmpParams);
        }
        // 回复
        break;
    }
  }

  // 关闭socket
  destroy() {
    if (this.socket && this.socket.readyState == 1) {
      this.socket && this.socket.close();
      this.socket = null;
    }
    this.failMsg={}
  }

  createInter() {
    if (this.timeoutObj) {
      clearTimeout(this.timeoutObj);
    }
    return
    this.timeoutObj = setTimeout(() => {
      this.socket && this.socket.send && this.socket.send({ data: 3 });
    }, HEART_BEAT_TIME);
  }
}