const util = require("../../../utils/util");
const datagramHelp = require("../../../utils/datagramHelp")
var app = getApp();
var task_timer;
Page({
  data: {
    devices: {
      deviceId: '',
      serviceId: '',
      characteristicId: '',
      connectedBluetoothName: ''
    },
    rtuInfo: {
      rtu_code: '',
      ip1: '',
      ip2: '',
      ip3: '',
      ip4: '',
      rtu_work_model: '',
      rtu_kind: '',
      collect_interval: '',
      water_level_base_point: '',
      water_level_correct_point: '',
      datagram_idx: '',
      collect_time: '',
      acc_rain: '',
      fiveMinute_rain: '',
      hour_rain: '',
      weater_level: '',
      power_v: '',
      rtu_ver: '',
      rtu_uuid: '',
      bt_v: '',
      rtu_rssi: '',
      rtu_temperature: '',
      lua_ver: ''
    },
    datagramBuff: '',
    datagramCache: [],
    trySendCount: 0,
    datagramIndex: 0,
    date: '',
    time: '',
    showSettingResult: false,
    settingResultText: '操作已完成！'
  },
  /**
   * 生命周期函数--监听页面加载
   */
  onLoad: function (options) {
    console.log('bluebooth home page load ', '**********************************************')
    let deviceId = options.deviceId;
    let serviceId = options.serviceId;
    let characteristicId = options.characteristicId;
    let connectedBluetoothName = options.connectedBluetoothName;
    console.log('name' + connectedBluetoothName)
    let devices = {}
    devices['deviceId'] = deviceId;
    devices['serviceId'] = serviceId;
    devices['characteristicId'] = characteristicId;
    devices['connectedBluetoothName'] = connectedBluetoothName;
    let time = util.getTime().substring(0, 5) + ":00";
    let date = util.getDate();
    this.setData({
      devices: devices,
      trySendCount: 0,
      datagramIndex: 0,
      time: time,
      date: date
    })
    task_timer = undefined;
    this.getRtuClock();

    if (this.data.datagramCache.length > 0) {
      let datagram = this.data.datagramCache[this.data.datagramIndex];
      this.sendDatagramToRtu(datagram);
      let index = this.data.datagramIndex + 1;
      if (this.data.datagramCache.length == index) {
        index = 0;
      }
      let count = this.data.trySendCount + 1;
      this.setData({
        datagramIndex: index,
        trySendCount: count
      })
    }
  },
  /**
   * 生命周期函数--监听页面隐藏
   */
  onHide: function () {
    console.log('bluebooth clock page onHide ', '**********************************************')
    this.cancelTime();
  },
  /**
   * 生命周期函数--监听页面卸载
   */
  onUnload: function () {
    console.log('bluebooth  clock onUnload ', '**********************************************')
    this.cancelTime();
  },
  /**
   * 生命周期函数--监听页面显示
   */
  onShow: function () {
    console.log('bluebooth  clock onShow ', '**********************************************')
    this.timeCallback();
  },
  settingCompletTabEvent(e) {
    this.setData({
      showSettingResult: false
    })
    const btn = e.detail.index;
    if (btn == 0) {
      wx.navigateBack();
    }
  },
  bindDateChange: function (e) {
    console.log('picker发送选择改变，携带值为', e.detail.value)
    this.setData({
      date: e.detail.value
    })
  },
  bindTimeChange: function (e) {
    console.log('picker发送选择改变，携带值为', e.detail.value)
    this.setData({
      time: e.detail.value + ":00"
    })
  },
  syncClockBtnTap: function () {
    this.cancelTime();
    let tm = util.getTimeStr();
    console.log(tm)
    this.setRtuClock(tm);
  },
  submitClockBtnTap: function () {
    this.cancelTime();
    let tm = this.data.date.substring(0, 4) + this.data.date.substring(5, 7) + this.data.date.substring(8, 10);
    tm += this.data.time.substring(0, 2) + this.data.time.substring(3, 5) + this.data.time.substring(6, 8);
    console.log(tm)
    this.setRtuClock(tm);
  },
  getRtuClock() {
    let datagram = datagramHelp.datagram_51();
    let cache = this.data.datagramCache;
    cache.push(datagram);


  },
  /**
   * 设置时钟
   * @param {时钟格式 yyyymmddhhmmss} clock 
   */
  setRtuClock(clock) {
    let datagram = datagramHelp.datagram_4A(clock);
    this.sendDatagramToRtu(datagram);
  },
  pushDatagramBuff(datagram) {
    let tmpdatagramBuff = this.data.datagramBuff;
    if (tmpdatagramBuff.length > 0) {
      tmpdatagramBuff = tmpdatagramBuff + datagram;
    } else {
      tmpdatagramBuff = datagram;
    }
    console.log(" datagram buff ==========", tmpdatagramBuff)
    this.setData({
      datagramBuff: tmpdatagramBuff
    })
    this.processDatagram();
  },
  processDatagram() {
    let datagram = this.data.datagramBuff;
    if (datagram.length > 0) {
      for (let i = 0; i < datagram.length; i++) {
        if (datagram.indexOf("7e7e") == 0) {
          break;
        } else {
          datagram = datagram.substring(i, datagram.length);
        }
      }
      if (null != datagram && datagram.length > 0 && datagram.indexOf("7e7e") >= 0) {
        if (datagram.length >= 26) {
          var lenBuff = util.HexStr2Bytes(datagram.substring(22, 22 + 4));
          var len = util.byteToUint16(lenBuff); // 报文长度(int)
          var datagramlength = 11 + len + 6;
          if (datagram.length >= datagramlength * 2) {
            var onedatagram = datagram.substring(0, datagramlength * 2);
            if (!datagramHelp.crcCheck(onedatagram)) {
              wx.showToast({
                title: '数据CRC校验错误，请重试！',
                icon: 'none',
                duration: 2000
              })
              this.setData({
                datagramBuff: ''
              })
              return;
            }
            var count = 20;
            var funcode = datagram.substring(count, count + 2);
            count += 2;
            if (funcode == "f6") {

            } else if (funcode == "f7") {

            } else if (funcode == '45') {

            } else if (funcode == '47') {

            } else if (funcode == '48') {

            } else if (funcode == '41') {

            } else if (funcode == '40') {

            } else if (funcode == '43') {

            } else if (funcode == '42') {

            } else if (funcode == '4a') {
              this.setData({
                showSettingResult: true,
                settingResultText: "时钟同步操作已完成！"
              })
              // wx.showToast({
              //   title: '操作已完成！',
              //   icon: 'ok',
              //   duration: 2000 //持续的时间
              // })
            } else if (funcode == '51') {
              var info = datagramHelp.datagram_51_analyse(onedatagram)
              console.log(info)
              let ct = info['collect_time'];
              if (ct != undefined && ct.length > 0) {
                let rtuInfo = this.data.rtuInfo;
                rtuInfo['collect_time'] = ct;
                this.setData({
                  rtuInfo: rtuInfo
                });
              }
              let index = this.data.datagramIndex + 1;
              if (this.data.datagramCache.length == index) {
                index = 0;
              }
              this.setData({
                datagramIndex: index,
                trySendCount: 0
              })
              this.cancelTime();
            } else if (funcode == 'f3') {

            }
            if (datagram.length - datagramlength * 2 > 0) {
              let tmp = datagram.substring(datagramlength * 2, datagram.length);
              this.setData({
                datagramBuff: tmp
              })
            }
          } else {
            this.setData({
              datagramBuff: datagram
            })
          }
        } else {
          this.setData({
            datagramBuff: datagram
          })
        }
      } else {
        if (null != datagram && datagram.length > 0) {
          this.setData({
            datagramBuff: datagram
          })
        } else {
          this.setData({
            datagramBuff: ''
          })
        }
      }
    }
  },
  sendDatagramToRtu(datagram) {
    console.log("will send datagram " + datagram);
    let buffer = util.HexStr2Bytes(datagram);
    var that = this;
    let count = 0;
    let inView = new DataView(buffer);
    while (true) {
      if (buffer.byteLength - count > 20) {
        let tmpBuff = new ArrayBuffer(20);
        let outView = new DataView(tmpBuff);
        for (let i = 0; i < 20; i++) {
          outView.setUint8(i, inView.getUint8(count + i))
        }
        wx.writeBLECharacteristicValue({
          deviceId: that.data.devices['deviceId'],
          serviceId: that.data.devices['serviceId'],
          characteristicId: that.data.devices['characteristicId'],
          value: tmpBuff,
          success(res) {
            console.log('writeBLECharacteristicValue success', res.errMsg)
            wx.onBLECharacteristicValueChange((characteristic) => {
              console.log("read datagram==============", util.ab2hex(characteristic.value))
              var datagram = util.ab2hex(characteristic.value);
              that.pushDatagramBuff(datagram);
            })
            wx.readBLECharacteristicValue({
              deviceId: that.data.devices['deviceId'],
              serviceId: that.data.devices['serviceId'],
              characteristicId: that.data.devices['characteristicId'],
              success: function (res) {
                console.log('readBLECharacteristicValue')
              }
            })
          },
          fail(res) {
            console.log('writeBLECharacteristicValue success', res.errMsg)
          }
        })
        count += 20;
      } else {
        let len = buffer.byteLength - count;
        let tmpBuff = new ArrayBuffer(len);
        let outView = new DataView(tmpBuff);
        for (let i = 0; i < len; i++) {
          outView.setUint8(i, inView.getUint8(count + i))
        }
        wx.writeBLECharacteristicValue({
          deviceId: that.data.devices['deviceId'],
          serviceId: that.data.devices['serviceId'],
          characteristicId: that.data.devices['characteristicId'],
          value: tmpBuff,
          success(res) {
            console.log('writeBLECharacteristicValue success', res.errMsg)
            wx.onBLECharacteristicValueChange((characteristic) => {
              console.log("read datagram==============", util.ab2hex(characteristic.value))
              var datagram = util.ab2hex(characteristic.value);
              that.pushDatagramBuff(datagram);
            })
            wx.readBLECharacteristicValue({
              deviceId: that.data.devices['deviceId'],
              serviceId: that.data.devices['serviceId'],
              characteristicId: that.data.devices['characteristicId'],
              success: function (res) {
                console.log('readBLECharacteristicValue')
              }
            })
          },
          fail(res) {
            console.log('writeBLECharacteristicValue success', res.errMsg)
          }
        })
        count += len;
      }
      if (count >= buffer.byteLength) {
        break;
      }
    }
  },
  timeCallback() {
    var that = this;
    task_timer = setTimeout(function () {
      console.log("------------------------------------Time CallBack----------------------------");
      if (that.data.trySendCount == 0) {
        let datagram = that.data.datagramCache[that.data.datagramIndex];
        that.sendDatagramToRtu(datagram);
        let index = that.data.datagramIndex + 1;
        if (that.data.datagramCache.length == index) {
          index = 0;
        }
        let count = that.data.trySendCount + 1;
        that.setData({
          datagramIndex: index,
          trySendCount: count
        })
      } else {
        let count = that.data.trySendCount + 1;
        if (count >= 10) {
          count = 0;
        }
        that.setData({
          trySendCount: count
        })
      }
      that.timeCallback();
    }, 3000);
  },
  cancelTime() {
    if (task_timer != undefined) {
      clearTimeout(task_timer);
      task_timer = undefined;
    }
    this.setData({
      datagramIndex: 0,
      trySendCount: 0
    })
  }
})