front-end/ghsApp/src/mixins/BLE.js

/** -姜枫 2021.06.13- **/
import { addPrintNum } from "@/api/order";
var util = require("@/pagesOrder/js/util.js");
import drawQrcode from "@/pagesOrder/js/weapp.qrcode.esm";
var toArrayBuffer = require('to-array-buffer');

var PrinterJobs = require("@/pagesOrder/js/printerjobs.js");
var printerUtil = require("@/pagesOrder/js/printerutil.js");


export default {
	data() {
		return {
			BleVal:'',
			nameBLE:'未连接',
			devices: [],
			currDev: null,
			isAutoBle: false,
			connId: "",
			piaojuText: [''],
		};
	},
	onShow() {
		this.devices = [];
		this.isAutoBle = false;
		if(uni.getStorageSync('BLE')){
			this.nameBLE = uni.getStorageSync('BLE').name;
		}
	},
	methods: {
		//断开蓝牙链接
		destroyed(BleVal) {
			this.BleVal = BleVal;
			let self = this;
			if(!uni.getStorageSync('BLE')){
				uni.showModal({
					title: '提示', content: '请先连接蓝牙',
					confirmText: "去连接",
					success: function (res) {
						if (res.confirm) {
							uni.navigateTo({url:'/pagesOrder/print'});
						}
					}
				});
				return;
			}
			uni.closeBLEConnection({deviceId: uni.getStorageSync('BLE').deviceId,complete(res) {
					console.log(res);
					self.autoLinkBle(BleVal);
				}
			});
			// if (this.connId != "") {
			// 	uni.closeBLEConnection({deviceId: uni.getStorageSync('BLE').deviceId,success(res) {
			// 			this.autoLinkBle();
			// 		}
			// 	});
			// }
		},
		//初始化蓝牙
		searchBle() {
			uni.showToast({
				title: '搜索中...',
				duration: 2000
				});
			var that = this;
			that.isAutoBle = false;
			uni.openBluetoothAdapter({
				success(res) {
					console.log(res,"打开 蓝牙模块");
					//that.onDevice();//监听搜索新设备
					//获取本机蓝牙适配器状态。
					uni.getBluetoothAdapterState({
						success: function(res) {
							console.log(res);
							if (res.available) {
								if (res.discovering) {
									that.stopFindBule();
								}
								//搜索蓝牙
								//开始搜寻附近的蓝牙外围设备
								console.log("开始搜寻附近的蓝牙外围设备");
								uni.startBluetoothDevicesDiscovery({
									success(res) {
										console.log(res);
										that.getBluetoothDevices()
									}
								});
							} else {
								console.log("本机蓝牙不可用");
							}
						}
					});
				}
			});
		},
		getBluetoothDevices(){
			let that = this;
			uni.getBluetoothDevices({
				success: re => {
					//let devices = res.devices;
					console.log(re,'设备列表');
					//var re = JSON.parse(JSON.stringify(devices));
					if(re.devices && re.devices.length > 0){

						re.devices.forEach(function(item){
							　　
						let name = item.name?item.name:'未知设备';
						if (name != "未知设备" && name != "") {
							let deviceId = item.deviceId;
							switch(uni.getSystemInfoSync().platform){
								case 'android':
									that.devices.push({name: name,deviceId: deviceId,services: []});
									break;
								case 'ios':
									for (let i=0;i<that.devices.length;i++){
										console.log(that.devices[i].name,'----',name)
										if (that.devices[i].name==name) {return}
									}
									that.devices.push({name: name,deviceId: deviceId,services: []});
									break;
							}
		
						}else{
							console.log('name',name)
							console.log('re.devices[0]',re.devices[0])
						}

					});

					}

				

				}
			});
		},
		// onDevice() {
		// 	var that = this;
		// 	//监听寻找到新设备的事件
		// 	uni.onBluetoothDeviceFound(function(devices) {
		// 		console.log(devices,'设备列表');
		// 		var re = JSON.parse(JSON.stringify(devices));
		// 		let name = re.devices[0].name?re.devices[0].name:'未知设备';
		// 		if (name != "未知设备" && name != "") {
		// 			let deviceId = re.devices[0].deviceId;
		// 			switch(uni.getSystemInfoSync().platform){
		// 				case 'android':
		// 					that.devices.push({name: name,deviceId: deviceId,services: []});
		// 					break;
		// 				case 'ios':
		// 					for (let i=0;i<that.devices.length;i++){
		// 						console.log(that.devices[i].name,'----',name)
		// 						if (that.devices[i].name==name) {return}
		// 					}
		// 					that.devices.push({name: name,deviceId: deviceId,services: []});
		// 					break;
		// 			}


		// 			// that.$nextTick(()=>{
		// 			// 	that.$util.unique(that.devices);
		// 			// })

		// 		}
		// 	});
		// },
		//自动链接蓝牙-初始化蓝牙模块
		autoLinkBle(BleVal){
			this.BleVal = BleVal;
			let self = this;
			if(!uni.getStorageSync('BLE')){
				uni.showModal({
					title: '提示', content: '请先连接蓝牙',
					confirmText: "去连接",
					success: function (res) {
						if (res.confirm) {
							uni.navigateTo({url:'/pagesOrder/print'});
						}
					}
				});
				return;
			}
			uni.showLoading({title: '打印中...'});
			self.isAutoBle = true;
			let deviceId = uni.getStorageSync('BLE');
			//初始化蓝牙模块
			uni.openBluetoothAdapter({
				success(res) {
					console.log('初始化成功',res)
					self.autoLinkBleFun(deviceId);
				},fail(e){
					console.log('初始化失败',e)
				}
			});
		},
		//自动链接蓝牙
		autoLinkBleFun(item) {
			console.log('自动链接 444444444444444444444444444444444444444444444444444')
			var that = this;
			let deviceId = item.deviceId;
			uni.createBLEConnection({
				deviceId: deviceId,
				complete(res) {
					console.log(res,'自动连接成功')
					if (res.errMsg == "createBLEConnection:ok") {
						uni.setStorageSync('BLE',item);
						setTimeout(function() {
							that.getBLEServices(deviceId);
						}, 2000);
					}
				}
			});
		},
		stopFindBule() {
			console.log("停止搜寻附近的蓝牙外围设备---------------");
			uni.stopBluetoothDevicesDiscovery({
				success(res) {
					console.log(res);
				}
			});
		},
		onConn(item) {
			console.log('正在连接 333333333333333333333333333333333333333333333333333333333333333333333333')
			uni.showLoading({title: '正在连接...'});
			var that = this;
			// console.log("连接蓝牙---------------" + item.deviceId);
			let deviceId = item.deviceId;
			uni.createBLEConnection({
				deviceId: deviceId,
				complete(res) {
					if (res.errMsg == "createBLEConnection:ok") {
						that.nameBLE = item.name;
						// console.log("连接蓝牙-[" + item.name + "]--成功");
						// that.$msg("连接蓝牙-[" + item.name + "]--成功");
						that.connId = deviceId;
						that.currDev = item;
						setTimeout(function() {
							that.getBLEServices(deviceId);
						}, 2000);
					} else {
						console.log(res);
					}
					//连接成功 关闭搜索
					that.stopFindBule();
				}
			});
		},

		getBLEServices(_deviceId) {
			var that = this;
			let deviceId = _deviceId;
			console.log("获取蓝牙设备所有服务(service)");

			console.log('获取蓝牙设备所有服务 222222222222222222222222222222222222222222222222222222222')

			uni.getBLEDeviceServices({
				// 这里的 deviceId 需要已经通过 createBLEConnection 与对应设备建立链接
				deviceId: deviceId,
				success(res) {
						console.log('getBLEDeviceServices成功：',res)
						for (var s = 0; s < res.services.length; s++) {
							console.log(res.services[s].uuid);
							let serviceId = res.services[s].uuid;
							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: serviceId,
								success(res) {
									var re = JSON.parse(JSON.stringify(res));

									console.log("deviceId = [" + deviceId + "]  serviceId = [" + serviceId + "]")

									for (var c = 0; c < re.characteristics.length; c++) {
										if (re.characteristics[c].properties.write == true) {
											let uuid = re.characteristics[c].uuid;
											console.log(" deviceId = [" +deviceId +"]  serviceId = [" +serviceId +"] characteristics = [" +uuid +"]");
											//是否是直接打印
											if(that.isAutoBle){
												console.log('打印订单 11111111111111111111111111111111111111111111111111111111111111')
												that.senBleLabel()
												uni.hideLoading()
												that.isAutoBle = false
											}
											for (var index in that.devices) {
												if (that.devices[index].deviceId == deviceId) {
													that.devices[index].services.push({serviceId: serviceId,characteristicId: uuid});
													that.$nextTick(()=>{
														uni.setStorageSync('BLE',that.devices[index]);
														that.$msg("连接蓝牙-[" + that.devices[index].name + "]--成功");
													})
													break;
												}
											}
											console.log(JSON.stringify(that.devices));
										}
									}
								}
							});
						}
				},
				fail(res) {
					console.log('getBLEDeviceServices失败：',res)
					uni.hideLoading()
					uni.showLoading({title:"打印失败..."})
					setTimeout(function(){
						uni.hideLoading()
					},2000)
					// if(res.errCode && res.errCode == 10004){
					// 	uni.showLoading({title:"重打中..."})
					// 	that.destroyed(that.BleVal)
					// }
				}
			});
		},
		_writeBLECharacteristicValue(data) {
			uni.writeBLECharacteristicValue({
			  deviceId: data.deviceId,
			  serviceId: data.serviceId,
			  characteristicId: data.characteristicId,
			  value: data.buffer,
			  success(res) {
				console.log('writeBLECharacteristicValue success', res)
			  },
			  fail(res) {
				console.log('writeBLECharacteristicValue fail', res)
			  }
			})
		  },

		senBleLabel() {
			let BleVal = this.BleVal;
			let self = this;
			console.log(BleVal,'BleValBleVal')
			let currDev = uni.getStorageSync('BLE');
			let deviceId = currDev.deviceId;
			let serviceId = currDev.services[0].serviceId;
			let characteristicId = currDev.services[0].characteristicId;

			let currentRealPrice = BleVal.debt == 1 ? '0.00' : BleVal.realPrice;

			let printerJobs = new PrinterJobs();
			printerJobs
			  .setSize(2, 2)
			  .print(BleVal.sendNum)
			  .setSize(1, 1)
			  .print(printerUtil.fillLine())
			  .setSize(2, 2)
			  .print(BleVal.custom.fullAddress)
			  .print(BleVal.custom.customName)
			  .print(BleVal.custom.customMobile)

				.setSize(1, 1)
				.print("备注：")
				.setSize(2, 2)
				.print(BleVal.remark)
				.setSize(1, 1)
				

				.setAlign('lt')
				.print(printerUtil.fillAround('花材 数量 价格'));
				
				if(BleVal.product.length > 0){
					BleVal.product.forEach(function(currentItem){
						printerJobs.print(printerUtil.inline(currentItem.name+' '+currentItem.num, currentItem.price));
					})
				}
				printerJobs.print(printerUtil.fillLine());
				//printerJobs.setAlign('rt');
				printerJobs.setAlign('lt')
				if(BleVal.sendCost>0){
					printerJobs.print('运费：￥'+BleVal.sendCost);
				}
				
				printerJobs.print('总金额：￥'+BleVal.prePrice);

				if(BleVal.discountAmount > 0){
					printerJobs.print('优惠：￥'+BleVal.discountAmount);
				}
			
				printerJobs.print('应付金额：￥'+BleVal.realPrice);
				printerJobs.print('实付金额：￥'+currentRealPrice);
			
				if(BleVal.debtAmount > 0){
					printerJobs.print('累计欠款：￥'+BleVal.debtAmount);
				}

				printerJobs.print(printerUtil.fillLine());
				printerJobs.print('订单日期：'+BleVal.date);
				printerJobs.print('订单编号：'+BleVal.orderSn);
				printerJobs.print('门店名称：纯彩花艺');
				printerJobs.print('门店地址：'+BleVal.address);
				
				printerJobs.println().println();
			
		
			let buffer = printerJobs.buffer();
			
			// 1.并行调用多次会存在写失败的可能性
			// 2.建议每次写入不超过20字节
			// 分包处理，延时调用
			const maxChunk = 20;
			const delay = 20;
			for (let i = 0, j = 0, length = buffer.byteLength; i < length; i += maxChunk, j++) {
			  let subPackage = buffer.slice(i, i + maxChunk <= length ? (i + maxChunk) : length);
			  setTimeout(this._writeBLECharacteristicValue, j * delay, {deviceId:deviceId, serviceId:serviceId, characteristicId:characteristicId,buffer:subPackage});
			}

			//增加打印次数
			addPrintNum({id:self.orderId}).then(res=>{
				if(!self.$util.isEmpty(self.detailInfo)){
					self.detailInfo.printNum++;
				}
				if(!self.$util.isEmpty(self.list.data)){
					self.list.data.forEach(ele=>{
						if (ele.id==self.orderId) {
							ele.printNum++;
						}
					})
				}
			})

			// let arrPrint = [];
			// //初始化打印机
			// arrPrint.push(util.sendDirective([0x1B, 0x40])); //16进制
			// //正文
			// arrPrint.push(util.sendDirective([0x1B, 0x0E]));
			// //字体宽高加倍
			// arrPrint.push(util.sendDirective([0x1d, 0x21, 0x11]));
			// arrPrint.push(util.hexStringToBuff(BleVal.sendNum));
			// //字体不放大，宽高不再加倍
			// arrPrint.push(util.sendDirective([0x1d, 0x21, 0x00]));

			// arrPrint.push(util.sendDirective([0x1B, 0x14]));
			// arrPrint.push(util.hexStringToBuff(" |纯彩花艺\n"));
			// arrPrint.push(util.sendDirective([0x1B, 0x14]));
			
			// arrPrint.push(util.hexStringToBuff("--------------------------------\n"));
			// arrPrint.push(util.sendDirective([0x1B, 0x0E]));

			// //字体宽高加倍
			// arrPrint.push(util.sendDirective([0x1d, 0x21, 0x11]));

			// arrPrint.push(util.hexStringToBuff(BleVal.custom.fullAddress+ "\n"));	
			// arrPrint.push(util.sendDirective([0x1B, 0x0E]));
			// arrPrint.push(util.hexStringToBuff(BleVal.custom.customName+"\n"+BleVal.custom.customMobile+ "\n"));

			// //字体不放大，宽高不再加倍
			// arrPrint.push(util.sendDirective([0x1d, 0x21, 0x00]));

			// if(BleVal.remark.length > 0){
			// 	arrPrint.push(util.sendDirective([0x1B, 0x14]));
			// 	arrPrint.push(util.hexStringToBuff("--------------------------------\n"));
			// 	arrPrint.push(util.hexStringToBuff("备注：\n"));
			// 	arrPrint.push(util.sendDirective([0x1B, 0x0E]));
			// 	//字体宽高加倍
			// 	arrPrint.push(util.sendDirective([0x1d, 0x21, 0x11]));
			// 	arrPrint.push(util.hexStringToBuff(BleVal.remark+"\n"));
			// 	//字体不放大，宽高不再加倍
			// 	arrPrint.push(util.sendDirective([0x1d, 0x21, 0x00]));
			// }

			// arrPrint.push(util.sendDirective([0x1B, 0x14]));
			// arrPrint.push(util.hexStringToBuff("--------------------------------\n"));
			// arrPrint.push(util.hexStringToBuff(util.printThreeData('花材', '数量', '价格')));
			// if(BleVal.product.length > 0){
			// 	BleVal.product.forEach(function(currentItem){
			// 		arrPrint.push(util.hexStringToBuff(util.printThreeData(currentItem.name, currentItem.num, currentItem.price)))
			// 	})
			// }
			// arrPrint.push(util.hexStringToBuff("--------------------------------\n"));
			// arrPrint.push(util.hexStringToBuff(util.printTwoData("运费:", BleVal.sendCost)));
			// arrPrint.push(util.hexStringToBuff(util.printTwoData("总金额:", BleVal.prePrice)));
			// arrPrint.push(util.hexStringToBuff(util.printTwoData("优惠:", BleVal.discountAmount)));
			// arrPrint.push(util.hexStringToBuff(util.printTwoData("应付金额:", BleVal.realPrice)));
			// arrPrint.push(util.hexStringToBuff(util.printTwoData("实付金额:", BleVal.debt == 1 ? '0.00' : BleVal.realPrice)));
			// if(BleVal.debtAmount > 0){
			// 	//加粗
			// 	//arrPrint.push(util.sendDirective([0x1b, 0x45, 0x01]));
			// 	arrPrint.push(util.hexStringToBuff(util.printTwoData("累计欠款:", BleVal.debtAmount)));
			// 	//取消加粗	
			// 	//arrPrint.push(util.sendDirective([0x1b, 0x45, 0x00]));
			// }
			// arrPrint.push(util.hexStringToBuff(util.printTwoData("订单日期:", BleVal.date)));
			// arrPrint.push(util.hexStringToBuff(util.printTwoData("订单编号:", BleVal.orderSn)));
			// arrPrint.push(util.sendDirective([0x1B, 0x61, 0x00]));
			// arrPrint.push(util.hexStringToBuff("门店地址："+BleVal.address+"\n"));
			// arrPrint.push(util.hexStringToBuff("\n\n\n\n"));

			// const ctx = uni.createCanvasContext('canvas');
			// ctx.clearRect(0, 0, 130, 130);
			// let tthis = this;
			// drawQrcode({
			// 	canvasId: 'canvas',
			// 	text: 'https://shop.huahb.cn/#/main/index',
			// 	width: 130,
			// 	height: 130,
			// 	callback(e) {
			// 		console.log(111111123)
			// 		setTimeout(() => {
			// 			// 获取图片数据
			// 			uni.canvasGetImageData({
			// 				canvasId: 'canvas',
			// 				x: 0,
			// 				y: 0,
			// 				width: 130,
			// 				height: 130,
			// 				success(res) {
			// 					let arr = tthis.convert4to1(res.data);
			// 					let data = tthis.convert8to1(arr);
			// 					const cmds = [].concat([27, 97, 1], [29, 118, 48, 0, 20, 0, 160, 0], data, [27, 74, 3], [27, 64]);
			// 					const buffer = toArrayBuffer(Buffer.from(cmds, 'gb2312'));
			// 					console.log(123456789)
			// 					arrPrint.push(util.sendDirective([0x1B, 0x40]));
			// 					for (let i = 0; i < buffer.byteLength; i = i + 20) {
			// 						arrPrint.push(buffer.slice(i, i + 20));
			// 					}
			// 					arrPrint.push(util.hexStringToBuff("\n"));
			// 					arrPrint.push(util.sendDirective([0x1B, 0x61, 0x01])); //居中
			// 					arrPrint.push(util.hexStringToBuff("扫码采购花材\n"));
			// 					arrPrint.push(util.hexStringToBuff("\n"));
			// 					arrPrint.push(util.hexStringToBuff("\n"));
			// 				}
			// 			})
			// 		}, 3000);
			// 	}
			// });
			// this.printInfo({deviceId:deviceId, serviceId:serviceId, characteristicId:characteristicId}, arrPrint);

		},

			//4合1
	convert4to1(res) {
		let arr = [];
		for (let i = 0; i < res.length; i++) {
			if (i % 4 == 0) {
				let rule = 0.29900 * res[i] + 0.58700 * res[i + 1] + 0.11400 * res[i + 2];
				if (rule > 200) {
					res[i] = 0;
				} else {
					res[i] = 1;
				}
				arr.push(res[i]);
			}
		}
		return arr;
	},

	//8合1
	convert8to1(arr) {
		let data = [];
		for (let k = 0; k < arr.length; k += 8) {
			let temp = arr[k] * 128 + arr[k + 1] * 64 + arr[k + 2] * 32 + arr[k + 3] * 16 + arr[k + 4] * 8 + arr[k + 5] * 4 +
				arr[k + 6] * 2 + arr[k + 7] * 1
			data.push(temp);
		}
		return data;
	},

		printInfo(device, arr, callback) {
			let tthis = this;
			if (arr.length > 0) {
				tthis.sendStr(device, arr[0], function(success) {
					arr.shift();
					tthis.printInfo(device, arr, callback);
				}, function(error) {
					console.log(error);
				});
			} else {
				callback ? callback() : '';
			}
		},
		//发送数据
		sendStr(device, bufferstr, success, fail) {
			let tthis = this;
			uni.writeBLECharacteristicValue({
				deviceId: device.deviceId,
				serviceId: device.serviceId,
				characteristicId: device.characteristicId,
				value: bufferstr,
				success: function(res) {
					success(res);
					console.log('sendStr', bufferstr)
				},
				failed: function(res) {
					fail(res)
					console.log("数据发送失败:" + JSON.stringify(res))
				}
			})
		},
	}
}