electronVueDemo/static/server/app.js

//const socketClient = require('./socketClient')
const socketServer = require('./socketServer')
const Koa = require('koa')
const app = new Koa()
var http = require('http');
var server = http.createServer(app.callback());
io = require('socket.io').listen(server);
var sendProtocal = require('./protocal/sendProtocal')
var command = require('./protocal/command')
var commonFunction = require('./protocal/commonFunction')

// var blueTouth = require('./blueTouth')

const nobleWrapper = require('./ble/nobleWrapper')

// socket 服务开启

let socketEvent = null;
var connectCount = 0;
var lastBuffer = null;

var nowConnectedBlueDeviceId = ''


io.sockets.on('connection', function (socket) {
    // 取零
    socket.on('startSetZero', function () {
         if(socketEvent!==null) {
             let sendData = sendProtocal.beginSetZero();
             socketEvent.write(sendData)
         }
    })
    // 停止取零
    socket.on('stopSetZero', function () {
        if(socketEvent!==null) {
            let sendData = sendProtocal.endSetZero();
            socketEvent.write(sendData)
        }
    })
    // 开始采集
    socket.on('startCollection', function () {
        if(socketEvent!==null) {
            let sendData = sendProtocal.startCollection();
            socketEvent.write(sendData)
        }
    })
    // 停止采集
    socket.on('stopCollection', function () {
        if(socketEvent!==null) {
            let sendData = sendProtocal.endCollection();
            socketEvent.write(sendData)
        }
    })
    // 复位设备
    socket.on('resetDevice', function () {
        if(socketEvent!==null) {
            let sendData = sendProtocal.resetDevice();
            socketEvent.write(sendData)
        }
    })
    socket.on('syncConnectCount', function () {
        if(connectCount !='0') {
            console.log('已有初始连接' +connectCount +'个')
        }
        io.sockets.emit('connectCount', connectCount);
        // io.sockets.emit('setDeviceStatus', blueTouth.getBlueServerStatus());
        // 将io对象传递给blueTooth js （发送连接客户端已经断开客户端消息发送）
        // blueTouth.setIo(io)
    })
    // 发送获取采样频率指令
    socket.on('checkCaiyang',function (sendData) {
        let data = sendProtocal.sendMsg(sendData,'caiyang','get')
        socketEvent.write(data)
    })
    // 发送设置采样频率指令
    socket.on('setCaiyang',function (sendData) {
        let data = sendProtocal.sendMsg(sendData,'caiyang','set')
        socketEvent.write(data)
    })
    // 发送检查传感器 阈值
    socket.on('checkChuangan',function (sendData) {
        let data = sendProtocal.sendMsg(sendData,'chuangan','get')
        socketEvent.write(data)
    })
    // 发送 设置传感器 阈值
    socket.on('setChuangan',function (sendData) {
        let data = sendProtocal.sendMsg(sendData,'chuangan','set')
        socketEvent.write(data)
    })
    // 发送检查驱动
    socket.on('checkQudong',function (sendData) {
        let data = sendProtocal.sendMsg(sendData,'qudong','get')
        socketEvent.write(data)
    })
    // 发送 设置驱动
    socket.on('setQudong',function (sendData) {
        let data = sendProtocal.sendMsg(sendData,'qudong','set')
        socketEvent.write(data)
    })
    // 发送检查功能
    socket.on('checkGongneng',function (sendData) {
        let data = sendProtocal.sendMsg(sendData,'gongneng','get')
        socketEvent.write(data)
    })
    // 发送 设置功能
    socket.on('setGongneng',function (sendData) {
        let data = sendProtocal.sendMsg(sendData,'gongneng','set')
        socketEvent.write(data)
    })
    // 发送检查设备
    socket.on('checkShebei',function (sendData) {
        let data = sendProtocal.sendMsg(sendData,'shebei','get')
        socketEvent.write(data)
    })
    // 发送设置设备
    socket.on('setShebei',function (sendData) {
        let data = sendProtocal.sendMsg(sendData,'shebei','set')
        socketEvent.write(data)
    })
    socket.on('sendBlueTouth',function (sendData) {
        blueTouth.sendData('123')
    })
    socket.on('searchModel',function (sendData) {
        let data = sendProtocal.searchModel();
        blueTouth.sendData(data)
    })
    socket.on('setModel',function (sendData) {
        let data = sendProtocal.inSetModel();
        blueTouth.sendData(data)
    })
    socket.on('InModel',function (sendData) {
        let data = sendProtocal.inTransModel();
        blueTouth.sendData(data)
    })
    // 蓝牙设置wifi账号密码
    socket.on('setWifiAccount',function (sendData) {
        let data = sendProtocal.blueToothSendCommand(
            sendData,'wifiAccount','set')
        blueTouth.sendData(data)
    })
    // 蓝牙获取wifi账号密码
    socket.on('getWifiAccount',function (sendData) {
        let data = sendProtocal.blueToothSendCommand(
            sendData,'wifiAccount','get')
        blueTouth.sendData(data)
    })
    // 蓝牙设置wifiIP
    socket.on('setWifiIp',function (sendData) {
        let data = sendProtocal.blueToothSendCommand(
            sendData,'wifiIp','set')
        blueTouth.sendData(data)
    })
    // 蓝牙获取wifi账号密码
    socket.on('getWifiIp',function (sendData) {
        let data = sendProtocal.blueToothSendCommand(
            sendData,'wifiIp','get')
        blueTouth.sendData(data)
    })
    // 蓝牙设置 服务端IP与端口
    socket.on('setServerIp',function (sendData) {
        let data = sendProtocal.blueToothSendCommand(
            sendData,'serverIp','set')
        blueTouth.sendData(data)
    })
    // 蓝牙获取wifi账号密码
    socket.on('getServerIp',function (sendData) {
        let data = sendProtocal.blueToothSendCommand(sendData,'serverIp','get')
        blueTouth.sendData(data)
    })
    socket.on('ble', function(request) {
        if (request.cmd === 'scan') {
            nobleWrapper.scan(function(resp) {
                io.sockets.emit('blueDeviceList', resp)
            })
        }  else if(request.cmd === 'connectDevice') {
            // 连接蓝牙设备
            request.args.on_data_cb =  function (data) {
                // 接收数据！
                if (lastBuffer !== null) {
                    data = Buffer.concat([lastBuffer, data]);
                }
                let flag = 1;
                while(flag){
                    if (data.length < frame_header_and_size_bytes) {
                        lastBuffer = data;
                        break;
                    }
                    let dataLength = data.readUIntLE(1, 2)
                    let frameLength = frame_header_and_size_bytes + dataLength

                    if(data.length > frameLength) {
                        let frame = data.slice(0, frameLength);
                        setAllCommand(frame)
                        lastBuffer = data.slice(frameLength)

                        if(lastBuffer.length >= frame_header_and_size_bytes) {
                            data = lastBuffer
                            continue;
                        }
                    } else if(data.length === frameLength) {
                        setAllCommand(data)
                        lastBuffer = null;
                    } else {
                        lastBuffer = data;
                    }
                    flag = 0;
                }
                // io.sockets.emit('blueToothData', buffer)
            }
            nobleWrapper.connectDevice(request.args,function(resp) {
                io.sockets.emit('connectDeviceBack', resp)
                if(resp.ok) {
                    nowConnectedBlueDeviceId  = request.args.id
                } else {
                    if(resp.msg == 'connectError') {
                        // 连接错误
                        console.log('server connectError')
                    }
                }
                //io.sockets.emit('blueDeviceList', resp)
            })
           // nobleWrapper.connectDevice(request.args, request.args.successCallBack, request.args.errorCallBack);
        } else if (request.cmd ==='disConnectDevice') {
            // 断开蓝牙设备
            if(nowConnectedBlueDeviceId !='') {
                nobleWrapper.disConnectDevice(nowConnectedBlueDeviceId,function (resp) {
                    io.sockets.emit('disConnectDeviceBack', resp)
                })
            }
        } else if(request.cmd ==='getCharServiceList') {
            // 获取CharServiceList
            if(nowConnectedBlueDeviceId !='') {
                nobleWrapper.getCharList(nowConnectedBlueDeviceId,function (info) {
                    io.sockets.emit('pushCharacteristicServerList', info)
                })
            }
        } else if(request.cmd == 'setup') {
            if(nowConnectedBlueDeviceId !='') {
                nobleWrapper.setUp(request.data)
            }
        } else if(request.cmd == 'closeSetUp') {
            // 用户关闭dialog  并把CharacteristicServer 取消订阅 unsubscribe
            console.log('close')
            nobleWrapper.disSetUp()
        }
    });

    socket.on('sendBleData',function (data) {
        let sendData = ''
        switch (data.type) {
            case 'setZero' :
                sendData = sendProtocal.beginSetZero()
                break;
            case 'stopSetZero':
                sendData = sendProtocal.endSetZero()
                break;
            case 'startCollection':
                sendData = sendProtocal.startCollection()
                break;
            case 'stopCollection':
                sendData = sendProtocal.endCollection()
                break;
            case 'resetDevice':
                sendData = sendProtocal.resetDevice()
                break;
        }
        nobleWrapper.write(sendData,function (res) {
            console.log(res)
        })
    })


})

const frame_header_and_size_bytes = 1 + 2;

socketServer.on('connection',(socket)=>{
    socketEvent = socket
    socketServer.getConnections((err, count)=>{
        if(err){
            console.warn(err);
        } else {
            console.log(`当前有${count}个连接`);
            connectCount = count
            io.sockets.emit('connectCount', count);

        }
    });
    socket.on('data', (data)=>{
        if (lastBuffer !== null) {
            data = Buffer.concat([lastBuffer, data]);
        }
        let flag = 1;
        while(flag){
            if (data.length < frame_header_and_size_bytes) {
                lastBuffer = data;
                break;
            }
            let dataLength = data.readUIntLE(1, 2)
            let frameLength = frame_header_and_size_bytes + dataLength

            if(data.length > frameLength) {
                let frame = data.slice(0, frameLength);
                setAllCommand(frame)
                lastBuffer = data.slice(frameLength)

                if(lastBuffer.length >= frame_header_and_size_bytes) {
                    data = lastBuffer
                    continue;
                }
            } else if(data.length === frameLength) {
                setAllCommand(data)
                lastBuffer = null;
            } else {
                lastBuffer = data;
            }
            flag = 0;
        }
    });
    socket.on('error', (err)=>{
        console.warn(err);
        socket.destroy();
    });
    socket.on('end', ()=>{
        io.sockets.emit('disConnectOneClient');
    });
})

// 处理所有指令（根据帧头判断业务逻辑）
function setAllCommand(validateData) {
let validNumByteArray = new Uint8Array(validateData);
let allCommond = commonFunction.buf2hex(validNumByteArray);
let commond = allCommond.substring(0,2)
// 判断 帧头 e5 足压扫描
if(commond == 'e5') {
    footPressure(validNumByteArray)
}

}
var col = 0
var tempPressureData = []
// 处理足压数据
function footPressure(validNumByteArray) {
    let offset = 10;
    let nowCol = validNumByteArray[8];
    //console.log(nowCol)
    if(nowCol== 51) {
        tempPressureData[col] = validNumByteArray.slice(offset)
        io.sockets.emit('pressureData',commonFunction.setPressureData(tempPressureData));
        tempPressureData = [];
        col = 0
    }
    if(nowCol >= col) {
        tempPressureData[nowCol] = validNumByteArray.slice(offset)
        col = nowCol;
    } else {
        io.sockets.emit('pressureData',commonFunction.setPressureData(tempPressureData));
        tempPressureData = [];
        tempPressureData[nowCol] = validNumByteArray.slice(offset)
        col = nowCol;
        //  col = 0
    }

}


module.exports = server