gongsiall/developedcode/cegongji/back/app/service/home.js

'use strict';
const Service = require('egg').Service;
const _ = require("lodash");
class HomeService extends Service {
  // 开始定时任务
  async startSend(params) {
    let { app, ctx } = this;
    await ctx.service.utils.sleep(500);
    if (!_.isEmpty(params)) {
      let newArr = []
      for (let i = 0; i < app.comKey.length; i++) {
        let element = app.comKey[i];
        let item = _.find(params, o => o.key === element.key)
        if (item) {
          newArr.push({ ...element })
        }
      }
      app.timerTemp = true
      while (app.timerTemp) {
        await this.exec(newArr)
      }
    }
  }
  //初始化发送一次查询命令
  async startSendOnce(params) {
    let { app } = this;
    let newArr = []
    for (let i = 0; i < app.comKey.length; i++) {
      let element = app.comKey[i];
      let item = _.find(params, o => o.key === element.key)
      if (item) {
        newArr.push({ ...element })
      }
    }
    await this.exec(newArr)
    return {
      haserror: false,
      msg: '查询完成',
    }
  }

  //结束定时任务
  async endSend() {
    let { app } = this;
    app.timerTemp = false
    return {
      haserror: false,
      msg: `成功关闭该页面定时任务`,
    }
  }
  //执行任务
  async exec(newArr) {
    let { ctx } = this;
    for (let i = 0; i < newArr.length; i++) {
      let element = newArr[i];
      await ctx.service.message.index(element);
    }
  }
  // ArrayBuffer转16进制字符串
  arrayBuffer2Hex(buffer) {
    let hexArr = Array.prototype.map.call(
      new Uint8Array(buffer),
      function (bit) {
        return ('00' + bit.toString(16)).slice(-2)
      }
    )
    return hexArr.join(" ")
  }
  //收到数据后发送数据
  async sendData(params, data, isDirct = false) {
    if (data) {
      let { app } = this;
      let resData = this.arrayBuffer2Hex(Buffer.from(data))
      //像端口发布信息
      if (isDirct) {
        app.mqttServe.publish(`/${params.ripCom}`, resData, {
          qos: 2,
          retain: false,
        })
      } else {
        let keyList = ["relay", "WLK10A"]
        if (keyList.indexOf(params.key) === -1) {
          if (!resData.indexOf(params.ripBackStart)) {
            app.mqttServe.publish(`/${params.key}`, resData, {
              qos: 2,
              retain: false,
            })
          }
        } else {
          if (params.key === "WLK10A") {
            if (!resData.indexOf(params.ripBackStart)) {
              for (let j = 0; j < params.execFun.length; j++) {
                let execItem = params.execFun[j];
                app.mqttServe.publish(`/${execItem}`, resData, {
                  qos: 2,
                  retain: false,
                })
              }
            }
          } else {
            if (params.key === "relay") {
              if (!resData.indexOf(params.ripBackStart[0])) {
                app.mqttServe.publish(`/${params.key}1`, resData, {
                  qos: 2,
                  retain: false,
                })
              } else if (!resData.indexOf(params.ripBackStart[1])) {
                app.mqttServe.publish(`/${params.key}2`, resData, {
                  qos: 2,
                  retain: false,
                })
              }
            }
          }
        }
      }
    }
  }
}

module.exports = HomeService;