zhywpt-sp/static/etc/CGAPI/cguBle.js

const TAG_FUNCTION = 'function'
const CGU_SERVICE_UUID = "0000FEE7-0000-1000-8000-00805F9B34FB";//目标服务
const CGU_WRTIE_UUID = "0000FFE1-0000-1000-8000-00805F9B34FB";//目标写特征
const CGU_READ_UUID = "0000FFE4-0000-1000-8000-00805F9B34FB";//目标读特征

const SUCCESS_CODE=0;
const FAILL_CODE=-1;

module.exports = {
  ScanDevice: ScanDevice,
  StopScanDevice: StopScanDevice,
  connectDevice: connectDevice,
  disconnectDevice: disconnectDevice,
  transCmd: transCmd,
  noSleepCmd: noSleepCmd

}
let foundDevices = []

var cguDeviceId = '';
var cguServiceId = '';
var cguWriteId = "";
var cguReadId = "";
var correctPacketIndex = 1;//理应包数
var receivePacketSize = 0;//接收总包数
var sendCallback;
var timeOutId;
var recevResendCount = 3;
var recevSuccessFlag = false;
var flashFlag = false;
var valueArray = new Array();//完整数据保存
var cguSendData = new Array();//送法的数据
var cguSendIndex = 0;
var cguResendCount = 3;
var IntervalTimer = 0;//搜搜蓝牙定时器
var SetoutTimer = 0;
//打开蓝牙适配器
function openBleAdapter(callback) {
  let DevResult = {};
  if (!wx.openBluetoothAdapter) {
    DevResult.code = 10001;
    DevResult.msg = "当前微信版本过低，无法使用该功能，请升级到最新微信版本后重试";
    DevResult.data = null;
    typeof callback == TAG_FUNCTION && callback(DevResult)
  } else {
    wx.openBluetoothAdapter({
      success: function (res) {
        DevResult.code = 0;
        DevResult.msg = "初始化蓝牙成功";
        DevResult.data = res;
        typeof callback == TAG_FUNCTION && callback(DevResult)
      },
      fail: function (res) {
        DevResult.code = 10001;
        DevResult.msg = "初始化蓝牙失败";
        DevResult.data = res;
        typeof callback == TAG_FUNCTION && callback(DevResult)
      }
    })
  }
}

//搜索蓝牙 flag 是过滤标识
function ScanDevice(flag, callback) {
  openBleAdapter(function (res) {
    if (res.code == 0) {
      let DevResult = {};
      foundDevices = [];
      wx.startBluetoothDevicesDiscovery({
        services: [],
        success: function (res) {
          fn();
          SetoutTimer = setTimeout(function () {
            StopScanDevice(function (res) {
              DevResult.code = 10002;
              DevResult.msg = "搜索超时，未发现设备";
              DevResult.data = null;
              typeof callback == TAG_FUNCTION && callback(DevResult);
            });
          }, 30000);

          function fn() {
            wx.onBluetoothDeviceFound(function (res) {
              for (let i = 0; i < res.devices.length; i++) {
                let isHave = false
                for (let j = 0; j < foundDevices.length; j++) {
                  if (res.devices[i].deviceId == foundDevices[j].deviceId) {
                    isHave = true
                    break
                  }
                }
               
                var blueName = res.devices[i]['name'];
                if (typeof (blueName) == undefined || blueName ==''){
                }else{
                  console.log("蓝牙名称：", res.devices[i]['name']);
                  if (isHave == false) {
                    foundDevices.push(res.devices[i]);
                    var deviceName = res.devices[i]['name'];
                    //过滤器 name
                    if (deviceName.indexOf(flag) != -1) {
                      var deviceId = res.devices[i]['deviceId'];
                      //停止搜搜
                      StopScanDevice(function (res) {
                        if (res.code == 0) {
                          clearTimeout(SetoutTimer);
                          SetoutTimer = 0;
                          let device = new Object();
                          device.deviceId = deviceId;
                          device.name = deviceName;
                          DevResult.code = 0;
                          DevResult.msg = "搜索成功";
                          DevResult.data = device;
                          typeof callback == TAG_FUNCTION && callback(DevResult)
                        } else {
                          DevResult.code = 10002;
                          DevResult.msg = "搜索失败";
                          DevResult.data = res;
                          typeof callback == TAG_FUNCTION && callback(DevResult)
                        }
                      })
                      break
                    } else {

                    }
                  }
                }

              }
            })
          }
        },
        fail: function (res) {
          DevResult.code = 10001;
          DevResult.msg = "搜索失败";
          DevResult.data = res;
          typeof callback == TAG_FUNCTION && callback(DevResult)
        }
      })
    } else {
      typeof callback == TAG_FUNCTION && callback(res)
    }
  });

}

//停止搜索
function StopScanDevice(callback) {
  if (SetoutTimer != 0) {
    clearTimeout(SetoutTimer);
    SetoutTimer = 0;
  }
  let DevResult = {};
  wx.stopBluetoothDevicesDiscovery({
    success: function (res) {
      DevResult.code = 0;
      DevResult.data = res;
      DevResult.msg = "操作成功";
      typeof callback == TAG_FUNCTION && callback(DevResult)
    },
    fail: function (res) {
      DevResult.code = 10030;
      DevResult.data = res;
      DevResult.msg = "蓝牙已关闭";
      typeof callback == TAG_FUNCTION && callback(DevResult)
    }
  })
}
//连接蓝牙
function connectDevice(device, callback, callback_2) {
  console.log("连接蓝牙==================");
  console.log(device);
  var DevResult = {};
  if (device != null) {
    cguWriteId = '';
    cguReadId = '';
    cguDeviceId = '';
    let deviceId = device.deviceId;
    cguDeviceId = deviceId;
    wx.createBLEConnection({
      deviceId: deviceId,
      success: function (data) {
        console.log("连接成功设备，开始使能服务");

        wx.onBLEConnectionStateChange(function (res) {
          if (res.connected == false) {
            DevResult.code=1;
            DevResult.data=null;
            DevResult.msg = "监听到断开连接";
            console.log("蓝牙异常断开");
            typeof callback_2 == TAG_FUNCTION && callback_2(DevResult);
          }else{
            DevResult.code = 0;
            DevResult.data = null;
            DevResult.msg = "监听连接成功";
            typeof callback_2 == TAG_FUNCTION && callback_2(DevResult);
          }
        })
        wx.getBLEDeviceServices({
          deviceId: deviceId,
          success: function (res) {
            for (let i = 0; i < res.services.length; i++) {
              let serviceuuid = res.services[i].uuid.toUpperCase();
              if (CGU_SERVICE_UUID.indexOf(serviceuuid) != -1) {
                cguServiceId = serviceuuid;
                //获取特征
                wx.getBLEDeviceCharacteristics({
                  deviceId: cguDeviceId,
                  serviceId: cguServiceId,
                  success: function (res) {
                    for (let i = 0; i < res.characteristics.length; i++) {
                      let chauuid = res.characteristics[i].uuid.toUpperCase();
                      if (CGU_READ_UUID.indexOf(chauuid) != -1) {
                        cguReadId = chauuid;
                      }
                      else if (CGU_WRTIE_UUID.indexOf(chauuid) != -1) {
                        cguWriteId = chauuid;
                      }
                    }
                    if (cguWriteId.length == 0 || cguReadId.length == 0) {
                      DevResult.code = -3;
                      DevResult.data = res;
                      DevResult.msg = "获取特征值失败";
                      typeof callback == TAG_FUNCTION && callback(DevResult);
                    }
                    else {
                      openReceiveData(function (res) {
                        typeof callback == TAG_FUNCTION && callback(res);
                      });
                    }
                  },
                  fail: function (res) {
                    DevResult.code = -2;
                    DevResult.data = res;
                    DevResult.msg = "获取特征值失败";
                    typeof callback == TAG_FUNCTION && callback(DevResult);
                  }
                })
              }
            }
          }, fail: function (res) {
            DevResult.code = -1;
            DevResult.data = res;
            DevResult.msg = "获取特征值失败";
            typeof callback == TAG_FUNCTION && callback(DevResult);
          }
        })
      },
      fail: function (err) {
        disconnectDevice(function (res) {
          DevResult.code = 10001;
          DevResult.data = res;
          DevResult.msg = "获取特征值失败";
          typeof callback == TAG_FUNCTION && callback(DevResult);
        });

      }
    })
  } else {
    DevResult.code = 10002;
    DevResult.data = device;
    DevResult.msg = "蓝牙名称为空";
    typeof callback == TAG_FUNCTION && callback(DevResult)
  }

}

//数据接收
function openReceiveData(callback) {
  var DevResult = {};
  wx.notifyBLECharacteristicValueChange({
    deviceId: cguDeviceId,
    serviceId: cguServiceId,
    characteristicId: cguReadId,
    state: true,
    success: function (res) {
      DevResult.code = 0;
      DevResult.data = null;
      DevResult.msg = "连接蓝牙成功";
      sendData(noSleepCmd(), function (res) {
        
      });
      setTimeout(function(){
        typeof callback == TAG_FUNCTION && callback(DevResult);
      },500)
    
    }, fail: function (res) {
      DevResult.code = -1;
      DevResult.data = res;
      DevResult.msg = "打开notify失败";
      typeof callback == TAG_FUNCTION && callback(DevResult);
    }
  })
  wx.onBLECharacteristicValueChange(function (characteristic) {
    var DevResult = {};

    if (CGU_READ_UUID.indexOf(characteristic.characteristicId.toUpperCase()) != -1) {
      let hex = Array.prototype.map.call(new Uint8Array(characteristic.value), x => ('00' + x.toString(16)).slice(-2)).join('');
      console.log("原始数据：" + hex);
      if (hex.length > 6) {

        let receivePacketIndex = parseInt(hex.substring(4, 6), 16);
        if (parseInt(hex.substring(2, 4), 16) == 0x80) {
          receivePacketSize = parseInt(hex.substring(4, 6), 16);
        }
        if (receivePacketSize == 1) {
          if ((parseInt(hex.substring(6, 8), 16) != 0xc7) && (parseInt(hex.substring(6, 8), 16) != 0xc0)) {
            console.log("进入只有一包数据的回调");
            recevSuccessFlag = true;
            recevResendCount = 3;
            clearInterval(timeOutId);
            hex = hex.substring(6, hex.length - 2);
            typeof sendCallback == TAG_FUNCTION && sendCallback(SUCCESS_CODE,hex);
          }
        } else {
          valueArray.push(hex.substring(6, hex.length - 2));

          if (correctPacketIndex == 1 && parseInt(hex.substring(2, 4), 16) != 0x80) {
            recevSuccessFlag = false
            console.log("第一帧数据丢包");
            correctPacketIndex++;
          }
          else if (correctPacketIndex != receivePacketIndex && correctPacketIndex != 1) {
            recevSuccessFlag = false
            console.log("数据丢包");
            correctPacketIndex++;
          } else if (correctPacketIndex == receivePacketSize) {
            correctPacketIndex = 1;
            var data = "";
            for (var i = 0; i < receivePacketSize; i++) {
              data = data + valueArray[i];
            }
            console.log("组包后:" + data);
            if ((parseInt(data.substring(0, 2), 16) != 0xc7)) {
              recevSuccessFlag = true;
              recevResendCount = 3;
              clearInterval(timeOutId);
              typeof sendCallback == TAG_FUNCTION && sendCallback(SUCCESS_CODE,data);
            }
          } else {
            correctPacketIndex++;
          }

        }
      }
    }
  });
}
//断开连接
function disconnectDevice(callback) {
  let deviceId = cguDeviceId;
  wx.closeBLEConnection({
    deviceId: deviceId,
    success: function (res) {
      if (res.errCode==0){
        wx.closeBluetoothAdapter({
          success: function (data) {
            let DevResult = {};
            DevResult.code = 0;
            DevResult.msg = "断开成功";
            DevResult.data = data;
            typeof callback == TAG_FUNCTION && callback(DevResult);
          }
        })
      }else{
        let DevResult = {};
        DevResult.code = 10001;
        DevResult.msg = "断开失败";
        DevResult.data = res;
        typeof callback == TAG_FUNCTION && callback(DevResult);
      }
    }, fail: function (err) {
      let DevResult = {};
      DevResult.code = 10002;
      DevResult.msg = "断开失败";
      DevResult.data = err;
      typeof callback == TAG_FUNCTION && callback(DevResult);
    }
  })
  
 
}
//发送数据
//bufferArray:封好数据包并拆分20字节一帧的数组
function sendData(bufferArray, callback) {
  var that = this;
  cguSendData = bufferArray;
  cguSendIndex = 0;
  sendCallback = callback;
  valueArray = [];//重置记录数据
  if (flashFlag) {
    flashFlag = false;
    recevSuccessFlag = true;
  } else {
    recevSuccessFlag = false;
  }
  correctPacketIndex = 1;
  startSendData();
}
function startSendData() {
  let DevResult = {};
  var that = this;
  let buffer = cguSendData[cguSendIndex];
  console.log("开始发送第" + cguSendIndex + "包数据: " + Array.prototype.map.call(new Uint8Array(buffer), x => ('00' + x.toString(16)).slice(-2)).join('') + "，总包数: " + cguSendData.length)
  wx.writeBLECharacteristicValue({
    deviceId: cguDeviceId,
    serviceId: cguServiceId,
    characteristicId: cguWriteId,
    value: buffer,
    success: function (res) {
      console.log("发送第" + cguSendIndex + "包数据成功");
      cguResendCount = 3;
      cguSendIndex++;
      if (cguSendIndex < cguSendData.length) {
        startSendData();//继续发下一个
      } else {
        // 设置超时
        clearInterval(timeOutId);
        timeOutId = null;
        timeOutId = setInterval(resendData, 10000);
      }
    },
    fail: function () {
      clearInterval(timeOutId);
      timeOutId = null;
      console.log("发送第" + cguSendIndex + "包数据失败");
      typeof sendCallback == TAG_FUNCTION && sendCallback(FAILL_CODE,"数据发送失败")
    }
  })
}
function resendData() {
  recevResendCount = 3;
  clearInterval(timeOutId);
  timeOutId = null;
  console.log("数据接收失败，数据接收超时");
  typeof sendCallback == TAG_FUNCTION && sendCallback(FAILL_CODE, "数据接收失败");
}

/**
 * cos通道接口
 * cosArr：指令数组；channelType：访问通道10访问IC卡，20访问ESAM；其他默认透传纯指令数据
 * callback(回调)，返回响应指令+状态码数组，
 */


function transCmd(cosArr, channelType, callback) {
  var CmdArrayData = new Array();
  if (cosArr.length>3){
    let DevResult={};
    var test = Group(cosArr, 3);
    if (channelType == "20"){
      let cmd = getEsamCmdByArray(test[0]);
      sendData(cmd, function (code, res) {
        if (code == 0 && parseInt(res.substring(0, 2), 16) == 0xB4) {
          var resultA = getArrayByReturnCmd(res);
          cmd = getEsamCmdByArray(test[1]);
          sendData(cmd, function (code2, res2) {
            if (code2 == 0 && parseInt(res2.substring(0, 2), 16) == 0xB4) {
              var resultB = getArrayByReturnCmd(res2);
              var dataRarray = resultA.concat(resultB);
              DevResult.code = 0;
              DevResult.msg = "透传ESAM指令成功";
              DevResult.data = dataRarray;
              typeof callback == TAG_FUNCTION && callback(DevResult);
            } else {
              DevResult.code = 1;
              DevResult.msg = "透传ESAM指令失败" + res2;
              DevResult.data = res2;
              typeof callback == TAG_FUNCTION && callback(DevResult);
            }
          })
        } else {
          DevResult.code = 1;
          DevResult.msg = "透传ESAM指令失败" + res;
          DevResult.data = res;
          typeof callback == TAG_FUNCTION && callback(DevResult);
        }
      })
    } else if (channelType=="10"){
      let cmd = getICCardCmdByArray(test[0]);
      sendData(cmd, function (code, res) {
        if (code == 0 && parseInt(res.substring(0, 2), 16) == 0xB3) {
          var resultA = getArrayByReturnCmd(res);
          cmd = getICCardCmdByArray(test[1]);
          sendData(cmd, function (code2, res2) {
            if (code2 == 0 && parseInt(res2.substring(0, 2), 16) == 0xB3) {
              var resultB = getArrayByReturnCmd(res2);
              var dataRarray = resultA.concat(resultB);
              DevResult.code = 0;
              DevResult.msg = "透传IC卡指令成功";
              DevResult.data = dataRarray;
              typeof callback == TAG_FUNCTION && callback(DevResult);
            } else {
              DevResult.code = 1;
              DevResult.msg = "透传IC卡指令失败" + res2;
              DevResult.data = res2;
              typeof callback == TAG_FUNCTION && callback(DevResult);
            }
          })
        } else {
          DevResult.code = 1;
          DevResult.msg = "透传IC卡指令失败" + res;
          DevResult.data = res;
          typeof callback == TAG_FUNCTION && callback(DevResult);
        }
      })
    }
    
  }else{
    let DevResult = {};
    if (channelType == "10") {
      sendData(getICCardCmdByArray(cosArr), function (code, res) {
        if (code == 0) {
          if (parseInt(res.substring(0, 2), 16) == 0xB3) {
            DevResult.code = 0;
            DevResult.data = getArrayByReturnCmd(res);
            DevResult.msg = "透传IC卡指令成功";
            typeof callback == TAG_FUNCTION && callback(DevResult);
          } else {
            DevResult.code = -1;
            DevResult.data = res;
            DevResult.msg = "透传IC卡指令失败：" + res;
            typeof callback == TAG_FUNCTION && callback(DevResult);
          }
        } else {
          DevResult.code = -2;
          DevResult.data = res;
          DevResult.msg = "指令透传失败：" + res;
          typeof callback == TAG_FUNCTION && callback(DevResult);
        }
      })
    } else if (channelType == "20") {
      sendData(getEsamCmdByArray(cosArr), function (code, res) {
        if (code == 0) {
          if (parseInt(res.substring(0, 2), 16) == 0xB4) {
            DevResult.code = 0;
            DevResult.data = getArrayByReturnCmd(res);
            DevResult.msg = "透传ESAM指令成功";
            typeof callback == TAG_FUNCTION && callback(DevResult);
          } else {
            DevResult.code = -2;
            DevResult.data = res;
            DevResult.msg = "透传ESAM指令失败：" + res;
            typeof callback == TAG_FUNCTION && callback(DevResult);
          }
        }
      })
    } else {
      if (typeof (cosArr) == "object") {

      } else if (typeof (cosArr) == "string") {
        sendData(packetData(cosArr), function (code, res) {
          if (code == 0) {
            DevResult.code = 0;
            DevResult.data = res;
            DevResult.msg = "透传其他指令成功";
            typeof callback == TAG_FUNCTION && callback(DevResult);
          } else {
            DevResult.code = 1;
            DevResult.data = res;
            DevResult.msg = "透传其他指令失败";
            typeof callback == TAG_FUNCTION && callback(DevResult);
          }
        })
      }

    }
  }
}


//将数组拆分为小数组
function Group(array, subGroupLength) {
  let index = 0;
  let newArray = [];
  while (index < array.length) {
    newArray.push(array.slice(index, index += subGroupLength));
  }
  return newArray;
}


function getICCardCmdByArray(cosArr) {
  let arrLen = cosArr.length;
  let cmd = "A3" + intToHexString(arrLen, 1, false);
  for (let i = 0; i < cosArr.length; i++) {
    cmd = cmd + intToHexString(cosArr[i].length / 2, 1, false) + cosArr[i];
  }
  return packetData(cmd);
}
function getEsamCmdByArray(cosArr) {
  let arrLen = cosArr.length;
  let cmd = "A4" + intToHexString(arrLen, 1, false);
  for (let i = 0; i < cosArr.length; i++) {
    cmd = cmd + intToHexString(cosArr[i].length / 2, 1, false) + cosArr[i];
  }
  return packetData(cmd);
}
function getArrayByReturnCmd(cmd) {
  let cmdCount = parseInt(cmd.substring(2, 6), 16);
  let returnCosArr = new Array();
  let startIndex = 6;
  let cmdLength = 0;
  for (let i = 0; i < cmdCount; i++) {
    cmdLength = parseInt(cmd.substring(startIndex, startIndex + 2), 16);
    let cmdStr = cmd.substring(startIndex + 2, startIndex + 2 + 2 * cmdLength);
    startIndex += 2 + cmdLength * 2;
    returnCosArr[i] = cmdStr;
  }
  return returnCosArr;
}

/**
     * 不休眠60s
     * 
     */
function noSleepCmd() {
  let cmd = "D13C";//60s
  return packetData(cmd);
}
/**
     * 不休眠30s
     * 
     */
function getNoSleepCmd() {
  let cmd = "D11E";
  return packetData(cmd);
}
function packetData(content) {
  console.log("开始拆包:" + content);
  let bufferArr = new Array();
  let sendPacketSize;
  let ST, CTL, DATA, BCC;
  let contentLength = content.length;
  if (content.length % 15 == 0) {
    sendPacketSize = parseInt(content.length / (15 * 2));
  } else {
    sendPacketSize = parseInt(content.length / (15 * 2)) + 1;
  }
  for (let i = 0; i < sendPacketSize; i++) {
    if (i == 0) {
      CTL = "80" + intToHexString(sendPacketSize, 1, false);
    } else {
      CTL = "00" + intToHexString(i + 1, 1, false);
    }
    if (contentLength >= 15 * 2) {
      DATA = content.substring(i * 15 * 2, (i + 1) * 15 * 2);
      contentLength = contentLength - 15 * 2;
    } else {
      DATA = content.substring(content.length - contentLength, content.length);
    }
    ST = "5" + parseInt(DATA.length / 2, 10).toString(16);
    BCC = getBcc(ST + CTL + DATA);
    console.log("组帧：" + "ST:" + ST + "  CTL:" + CTL + "  DATA:" + DATA + "  BCC:" + BCC);
    bufferArr.push(str2array(ST + CTL + DATA + BCC).buffer);
  }
  return bufferArr;
}

//num：要转换的数(number)    bitNum：转换后的字节数(number)   isBig:是不是大端模式(boolean)
function intToHexString(num, bitNum, isBig) {
  //转大端hex并补足
  let hex = num.toString(16);
  for (let i = hex.length; i < bitNum * 2; i++) {
    hex = "0" + hex;
  }
  //多位截取
  if (hex.length > bitNum * 2) {
    hex = hex.substring(hex.length - bitNum * 2);
  }
  //转小端
  if (isBig == false) {
    let temp = "";
    for (let i = hex.length - 2; i >= 0; i -= 2) {
      temp = temp + hex.substring(i, i + 2);
    }
    hex = temp;
  }
  return hex;
}

//array 转str
function array2Str(array) {
  let data = "";
  for (let i = 0; i < array.length; i++) {
    data = data + array[i];
  }
  return data;
}

//str 转 array
function str2array(str) {
  let array = new Uint8Array(str.match(/[\da-f]{2}/gi).map(function (h) {
    return parseInt(h, 16)
  }))
  return array;
}

//计算BCC
function getBcc(data) {
  var bcc = 0x00;
  var bcc1;
  for (var i = 0; i < data.length / 2; i++) {
    bcc1 = parseInt(data.substring(i * 2, i * 2 + 2), 16);
    bcc = bcc1 ^ bcc;
  }
  let str = bcc.toString(16);
  if (str.length == 1) {
    str = "0" + str;
  }
  return str;
}
function arraycopy(/* array*/ from,  /* index */  from_start,
/* array */ to, /*  index */  to_start,
/*  integer */  length) {
  //逻辑代码；
  for (var i = 0; i < length; i++) {
    to[to_start + i] = from[from_start + i];
  }
}