// 蓝牙打印 指令和转码var tsc = require('@components/gprint/tsc.js')

onBlue(e) {uni.openBluetoothAdapter({success(res) {//监听寻找到新设备的事件that.findDevice()//监听本机蓝牙适配器状态变化事件that.onStatus()}})

findDevice(){console.log("监听寻找到新设备的事件---------------")//监听寻找到新设备的事件uni.onBluetoothDeviceFound(function(devices) {const {name,deviceId} = devices[0];if(name == "未知设备")return;if(!name || !name.length){that.devices.push({name: name,deviceId: deviceId,services: []})}that.devices.forEach(e=>{if(that.devicesList){let b = true;that.devicesList.forEach(e1=>{if(e.name == e1.name){b = false;}});if(b)that.devicesList.push(e);}else{that.devicesList.push(e);}});}
}

onStatus(){uni.getBluetoothAdapterState({success: function(res) {//本机蓝牙开启时if (res.available) {//如在正在搜索设备，则停止搜索if (res.discovering) {uni.stopBluetoothDevicesDiscovery()}//搜索蓝牙//开始搜寻附近的蓝牙外围设备uni.startBluetoothDevicesDiscovery()} else {console.log('本机蓝牙不可用')}},})
}

onLink(item){const {deviceId} = item;console.log("连接蓝牙---------------" + deviceId);//连接低功耗蓝牙设备。uni.createBLEConnection({deviceId: deviceId,complete(res) {if (res.errMsg != "createBLEConnection:ok") return//连接设备时，需断开本机连接设备uni.closeBLEConnection({deviceId})that.connId = deviceId;that.currDev = itemsetTimeout(()=> {//获取蓝牙设备所有服务(service)that.getBLEServices(deviceId)}, 2000)}//连接成功 关闭搜索uni.stopBluetoothDevicesDiscovery()})
}

getBLEServices(deviceId) {uni.getBLEDeviceServices({// 这里的 deviceId 需要已经通过 createBLEConnection 与对应设备建立链接deviceId: deviceId,complete(res) {const {services} = res;services.forEach(item=>{const {uuid} = item;uni.getBLEDeviceCharacteristics({// 这里的 deviceId 需要已经通过 createBLEConnection 与对应设备建立链接deviceId: deviceId,// 这里的 serviceId 需要在 getBLEDeviceServices 接口中获取serviceId: uuid,success(res) {const {characteristics} = res;for(let block of characteristics){if(!block.properties.write)returnfor (let index in that.devices) {if (that.devices[index].deviceId == deviceId) {that.devices[index].services.push({serviceId: uuid,characteristicId: block.uuid,})break}}}uni.setStorage({key: 'currDev',data: that.devices,});}})})}})
}　

onPrint(){if(this.currDev.length == 0){uni.showToast({title: '请先连接蓝牙打印机',duration: 2000});return}//标签模式const {deviceId} = this.currDev;const {serviceId,characteristicId} = this.currDev.services[0];var command = tsc.jpPrinter.createNew();//DaYin这个字段存放我们需要打印的数据let DaYin = JSON.parse(JSON.stringify(this.rowsList));let Customer = JSON.stringify(this.Customer);//打印格式需要根据打印机的特定格式来。在tsc文件中修改格式。DaYin.forEach(e=>{command.form(e.ReceSheetNo,`客    户:${Customer}`,`匹    数:${e.Rolls}`,`坯布品名:${e.GrayID}`,`进仓编号:${e.LotNo}`,`坯布类型:${e.GrayTypeName}`)command.setPagePrint()})//转码处理this.senBlData(deviceId, serviceId, characteristicId,command.getData())
}

senBlData(deviceId, serviceId, characteristicId,uint8Array) {let uint8Buf = Array.from(uint8Array);function split_array(datas,size){let result = {};let j = 0for (var i = 0; i < datas.length; i += size) {result[j] = datas.slice(i, i + size)j++}return result}let sendloop = split_array(uint8Buf, 20);function realWriteData(sendloop, i) {let data = sendloop[i]if(typeof(data) == "undefined"){return}let buffer = new ArrayBuffer(data.length)let dataView = new DataView(buffer)uni.writeBLECharacteristicValue({deviceId,serviceId,characteristicId,value: buffer,success(res) {realWriteData(sendloop, i + 1);}})}let i = 0;realWriteData(sendloop, i);
},

// 条形码和文字合成打印
jpPrinter.form = function (content,text1,text2,text3,text4) {data = header + "LEFT" + "\r\n" + "GAR-SENSE" + "\r\n" + barcodeText +"BARCODE " + 128 + " " + 1 + " " + 1 + " " + 125 + " " + 125 + " " + 0 + " " + content + "\r\n" + "TEXT " + " " + 12 + " " + 0 + " " + 125 + " " + 180 + " " + text1 + "\r\n" + "TEXT " + " " + 12 + " " + 2 + " " + 125 + " " + 210 + " " + text2 + "\r\n" + "TEXT " + " " + 12 + " " + 2 + " " + 125 + " " + 240 + " " + text3 + "\r\n" + "TEXT " + " " + 12 + " " + 2 + " " + 125 + " " + 270 + " " + text4 + "\r\n" + "FORM" + "\r\n" ; jpPrinter.addCommand(data)
};