// 蓝牙设备结果集
let devices = []

// 当前连接的蓝牙设备
let device = ''

// 蓝牙设备id
let deviceId = ''


// 写了数据等待通知结果返回
let waitingForResult = false

// 连接状态
let isConnecting = false
let connected = false

// 服务 uuid 和 特征值 uuid
//正式
//测试

let service_uuid = "0000AE30-0000-1000-8000-00805F9B34FB"
let write_characteristic = "0000AE03-0000-1000-8000-00805F9B34FB"
let notify_characteristic = "0000AE03-0000-1000-8000-00805F9B34FB"
let notify_characteristic_2 = "0000AE02-0000-1000-8000-00805F9B34FB"//获取设备电量和设备mac地址

// 命名规则
let rule1 = "" // Android
let rule2 = "" // ios

// 手动断开
var manualDisconnect = true

// #################################################
// #
// #    Callback Definitions
// #
// #################################################

// 回调事件
let connectCallback = '' // 连接成功回调
let scanCallback = '' // 搜索到蓝牙设备回调
let disconnectCallback = '' // 设备断开连接回调
let writeCallback = '' // 写成功回调
// 自定义 业务相关 回调事件
let realtimeCallback = '' // 实时发送指令的回调
let batteryCallback = '' // 电量回调
let macCallback = '' // MAC地址回调
let lastBatteryLevel = 'N/A';

// 自定义 业务相关 标识
let realtimeType = '' // 实时发送指令的标识


// 重连相关
let reconnectTimes = 0 // 重连次数
let reconnectTimer // 重连计时器

// 因为有心跳自动计时器发送，不是全是用户手动的操作，用户的手动操作设定为一个操作后才能操作下一个，但有自动心跳发送的话，可能会出现发送心跳时，
// 用户也正好操作了，那这时可能会出现，同时写两条指令情况，即没收到上一条的回复就发送了下一条指令，现用数组暂存
let cmdList = [] // 看这里！！！ 现在没有心跳，只有用户的操作，确保用户的操作都是有回复的，并且在队列内，等待前一条执行完才执行下一条

// 当前蓝牙适配器是否打开的状态
let isOpen = false

// 自动连接
let auto_connect = false

// 准备去自动连接的 deviceId
let auto_mac = []
let auto_mac_backup = [] // 备份

// 扫描到设备后，再等待个几秒计时器
let after_timer = ''

// 自动连接回调
let autoConnectCallback = ''

// 自动连接检测计时器
let autoConnectTimer = ''


/**
 * 手机蓝牙是否开启了
 */
let isBleOn = false



let listener = function(res) {
	console.log(res);
	// 该方法回调中可以用于处理连接意外断开等异常情况
	if (!res.connected) {
		device = ''
		cmdList = [] // 这里清空指令
		isConnecting = false
		connected = false
		lastBatteryLevel = 'N/A';
		if (disconnectCallback && typeof disconnectCallback == 'function') {
			disconnectCallback()
		}
		uni.getBluetoothAdapterState({
			success: (res) => {
				if (!res.available) {
					isOpen = false
					auto_connect = true
				}
				reconnectDevice()
			},
			fail: (err) => {}
		})
	}
}


// 初始化拓展函数
String.prototype.padLeft = function(len, char) {
	let str = this;
	return new Array(len - str.length + 1).join(char || '') + str
}
String.prototype.transFloat = function() {
	let str = this;
	return str.indexOf('.') != -1 ? parseFloat(str).toFixed(1) : str
}

// //uni
uni.onBluetoothAdapterStateChange(function(res) {
	if (!res.available) {
		isOpen = false
		isBleOn = false
	} else {
		isBleOn = true
	}
})




// 获取  校验
function getCheckSum(cmd) {
	// console.log(cmd, '我是cmd');
	let checkSum = getCrc16(cmd);
	// console.log(checkSum, '我是checkSum');
	// console.log(splitByLen(checkSum, 2).reverse().map(e => parseInt(e, 16)), 'woshi ');
	return splitByLen(checkSum, 2).reverse().map(e => parseInt(e, 16))
}

function getCrc16(cmd) {
	let crc = 0xffff;
	let len = cmd.length;
	for (let i = 0; i < len; i++) {
		crc = crc ^ (cmd[i] & 0xff)
		for (let j = 0; j < 8; j++) {
			if ((crc & 0x0001) == 1) {
				crc >>= 1
				crc ^= 0xA001
			} else {
				crc >>= 1
			}
		}
	}
	// console.log(crc.toString(16).padLeft(4, '0'), '0121454878');
	return crc.toString(16).padLeft(4, '0')
}


// #################################################
// #
// #    Module Setup & Configuration
// #
// #################################################

// 初始化蓝牙模块
export function initBlue() {
	uni.onBluetoothDeviceFound((res) => {
		res.devices.forEach(device => {
			// 过滤掉没有名字的设备
			if (!device.name) {
				return;
			}

			const foundDevices = devices
			const idx = inArray(foundDevices, 'deviceId', device.deviceId)
			if (idx === -1) {
				devices.push(device)
			} else {
				devices[idx] = device
			}

			// Always notify the UI of any found device
			if (scanCallback && typeof scanCallback == "function") {
				scanCallback() // 查找结果集回调
			}

			// console.log('auto_connect:', auto_connect);
			// console.log('isConnecting:', isConnecting);
			// console.log('deviceId:', deviceId);
			if (auto_connect && !isConnecting && device.deviceId == deviceId) {
				isConnecting = true
				createBLEConnection(deviceId, true);

			} else if (auto_connect) {
				// console.log('111111100000000000000000//////////////');
				if (!after_timer) {
					after_timer = setTimeout(() => {
						let valid = []
						auto_mac = JSON.parse(JSON.stringify(auto_mac_backup))
						auto_mac.forEach(item => {
							valid.push(devices.some(e => e.deviceId == item))
						})
						valid.forEach((item, index) => {
							if (!item) {
								auto_mac.splice(index, 1)
							}
						})
						console.log('valid mac ', auto_mac)
						if (auto_mac.length > 0) {
							uni.showLoading({
								title: '自动连接中...',
								mask: true
							})
							let mac = auto_mac[0]
							createBLEConnection(mac)
							auto_mac.splice(0, 1)
						} else {}
						clearTimeout(after_timer)
						after_timer = ''
					}, 1000 * 6)
				}
			}
		})
	})
}

// 设置连接成功回调
export function setCallback(e) {
	connectCallback = e
}

// 设置搜索到蓝牙设备回调
export function setScanCallback(e) {
	scanCallback = e
}

// 设置设备断开连接回调
export function setDisconnectCallback(e) {
	disconnectCallback = e
}

// 设置写成功回调
export function setWriteCallback(e) {
	writeCallback = e;
}

export function setBatteryCallback(e) {
	batteryCallback = e;
	if (lastBatteryLevel !== 'N/A' && typeof batteryCallback === 'function') {
		batteryCallback(lastBatteryLevel);
	}
}

export function setMacCallback(e) {
	macCallback = e;
}

export function getDeviceId(){
	return deviceId
}

export function getConnectedDevice() {
	return device;
}

// 业务相关回调
function setRealtimeCallback(type, e) {
	realtimeType = type
	// console.log('业务相关回调', e);
	realtimeCallback = e
	// console.log('set realtimeType ', realtimeType)
}


// #################################################
// #
// #    Core BLE Command Functions
// #
// #################################################

// 转换16进制
/**
 * @param {number} num 几位
*/
function conversion(str, num) {
	const result = [];
	for (let i = 0; i < str.length; i += num) {
		let temp = str.slice(i, i + num);
		// temp.toString(16);
		result.push(parseInt(temp, 16));
	}
	return result;
}

// 切换灯的模式
export function sendLightType(type, e){
	setRealtimeCallback(type, e)
	let str1 = `FA${e}000100FF`;
	let arr = [];
	arr = conversion(str1, 2);
	executeCmd(arr);
}

// 调节灯亮度
export function setLight(type, e, num) {
	setRealtimeCallback(type, e)
	// let str = `FA05${parseInt(num, 16)}00FF`;
	let str = `FA050001${num.toString(16).padLeft(2,'0')}FF`;
	let arr = conversion(str, 2);
	console.log('light数组', arr);
	executeCmd(arr);
}

/**
 * @description 设置单位、部门、名字...
 * @param { Array } arr 
*/
export function sendImg(arr,e) {
	let dataArr = conversion(arr, 2);
	console.log(dataArr);
	executeCmd(dataArr);
}


// 如未空（未收到回复，收到回复会清掉第一个指令）进队列， 空直接执行
function executeCmd(cmd) {
	// if (cmdList.length == 0) {
	// 	writeBLECharacteristicValue(write_characteristic, cmd)
		
	// }
	// cmdList.push(cmd)
	writeBLECharacteristicValue(write_characteristic, cmd)
}

// 清掉第一个指令，然后检查队列是否为空，不为空继续发送
function continueExecute() {
	cmdList.splice(0, 1)
	if (cmdList.length != 0) {
		writeBLECharacteristicValue(write_characteristic, cmdList[0])
	}
}


// #################################################
// #
// #    Core BLE Connection Logic
// #
// #################################################


// step 1
// 打开蓝牙功能
export function openBluetoothAdapter(search, callback) {
	const operation = () => {
		openBleAdapter((err) => {
			if (!err) {
				// On success (no error), start scanning for devices.
				startBluetoothDevicesDiscovery();
			}
			// Always call the page's callback to notify it of the result.
			if (callback) {
				callback(err);
			}
		});
	};

	if (search) {
		// First close any existing adapter session, then perform the operation.
		uni.closeBluetoothAdapter({
			complete: operation,
		});
	} else {
		operation();
	}
}

function openBleAdapter(callback) {
	uni.openBluetoothAdapter({
		success: (res) => {
			isOpen = true;
			isBleOn = true;
			if (callback) callback(); // Success, no error object.
		},
		fail: (err) => {
			// Log the full error to help diagnose release version issues
			console.error('openBluetoothAdapter failed with error:', JSON.stringify(err));

			if (err.errCode === 10001) {
				uni.showModal({
					content: '请打开手机蓝牙',
					showCancel: false,
				});
			} else {
				// For other errors, show a detailed modal for debugging in the release version.
				uni.showModal({
					title: '蓝牙启动失败',
					content: `错误: ${JSON.stringify(err)}`,
					showCancel: false
				});
			}
			isOpen = false;
			isBleOn = false;
			// Propagate the error to the calling page
			if (callback) callback(err);
		},
	});
}

// step 2
//开始搜索蓝牙设备
function startBluetoothDevicesDiscovery() {
	console.log('开始搜索');
	let option = {
		allowDuplicatesKey: false,
		success: (res) => {
			console.log('搜索成功,有设备', res);
			onBluetoothDeviceFound();
		},
		fail: (err) => {
			console.log('当前搜索蓝牙设备失败', err);
			if(err.errCode == 10008) {
				uni.showToast({
					title: '扫描太过频繁，请稍后再试',
					icon: 'none'
				});
			}
			// resetDevices();
			// devices = []
			// openBluetoothAdapter(true);
		}
	}
	if (auto_connect) {
		option.services = [
			service_uuid
		]
	}
	uni.startBluetoothDevicesDiscovery(option)
}



let hexString = ''
// step 3
// 设备查找结果处理
function onBluetoothDeviceFound() {
	uni.onBluetoothDeviceFound((res) => {
		res.devices.forEach(device => {
			// 过滤掉没有名字的设备
			if (!device.name) {
				return;
			}

			const foundDevices = devices
			const idx = inArray(foundDevices, 'deviceId', device.deviceId)
			if (idx === -1) {
				devices.push(device)
			} else {
				devices[idx] = device
			}

			// Always notify the UI of any found device
			if (scanCallback && typeof scanCallback == "function") {
				scanCallback() // 查找结果集回调
			}
			
			// console.log('auto_connect:', auto_connect);
			// console.log('isConnecting:', isConnecting);
			// console.log('deviceId:', deviceId);
			if (auto_connect && !isConnecting && device.deviceId == deviceId) {
				isConnecting = true
				createBLEConnection(deviceId, true);

			} else if (auto_connect) {
				// console.log('111111100000000000000000//////////////');
				if (!after_timer) {
					after_timer = setTimeout(() => {
						let valid = []
						auto_mac = JSON.parse(JSON.stringify(auto_mac_backup))
						auto_mac.forEach(item => {
							valid.push(devices.some(e => e.deviceId == item))
						})
						valid.forEach((item, index) => {
							if (!item) {
								auto_mac.splice(index, 1)
							}
						})
						console.log('valid mac ', auto_mac)
						if (auto_mac.length > 0) {
							uni.showLoading({
								title: '自动连接中...',
								mask: true
							})
							let mac = auto_mac[0]
							createBLEConnection(mac)
							auto_mac.splice(0, 1)
						} else {}
						clearTimeout(after_timer)
						after_timer = ''
					}, 1000 * 6)
				}
			}
		})
	})
}


// connect step 1
// 连接蓝牙设备
export function createBLEConnection(id, advertisData, sameDevice, closeConnectLoading) { //直接连接设备
	console.log(id, advertisData, sameDevice, '连接蓝牙设备');
	closeBLEConnection(false, () => {

		// #ifdef MP-WEIXIN
		uni.offBLEConnectionStateChange(listener) // 先移除
		// #endif

		//监听蓝牙连接状态
		uni.onBLEConnectionStateChange(listener)
		uni.createBLEConnection({
			deviceId: id,
			timeout: 5000,
			success: (res) => {
				console.log(res, '蓝牙连接状态');
				auto_connect = false // 重置
				auto_mac = [] // 重置
				closeAutoConnect() // 关闭全局自动连接
				if (autoConnectCallback && typeof autoConnectCallback == 'function') {
					autoConnectCallback()
				}
				stopBluetoothDevicesDiscovery() // 停止扫描蓝牙设备
				device = devices.find(item => item.deviceId == id)
				isConnecting = false
				connected = true
				manualDisconnect = false
				deviceId = id
				console.log('连接的设备ID', deviceId);
				getBLEDeviceServices(deviceId) // 获取服务，初始化特征值
				uni.setStorageSync('deviceId', deviceId);
				// uni.setStorageSync('deviceName', name);
			},
			fail: (err) => {
				console.log('设备连接失败', err);
				isConnecting = false;
				if (auto_connect) {
					if (auto_mac.length > 0) {
						let mac = auto_mac[0]
						createBLEConnection(mac)
						auto_mac.splice(0, 1)
					} else {
						if (autoConnectCallback && typeof autoConnectCallback == 'function') {
							autoConnectCallback()
						}
					}
				} else {
					console.log('设备连接失败');
					uni.hideLoading()
					uni.showToast({
						title: '设备连接失败！' + err.errMsg,
						icon: 'none',
						duration: 2000,
					})
				}
				if (typeof closeConnectLoading === 'function') {
					closeConnectLoading();
				}
			},
			complete: () => {
				uni.hideLoading();
			}
		})
	}, sameDevice) // 关闭当前蓝牙连接
	console.log('结束连接方法');
}

// connect step 2
// 获取服务
function getBLEDeviceServices(deviceId) {
	console.log('我获取服务成功接收到的Id是', deviceId);
	//#ifdef APP-PLUS
	setTimeout(() => {
		uni.getBLEDeviceServices({
			deviceId,
			success: (res) => {
				// console.log(res, '获取蓝牙设备所有服务2');
				// console.log('测试1',res.services[i].uuid, service_uuid.toUpperCase())
				for (let i = 0; i < res.services.length; i++) {
					// console.log('测试2',res.services[i].uuid, service_uuid.toUpperCase())
					// 消息服务
					if (res.services[i].uuid == service_uuid ||
						res.services[i].uuid == service_uuid.toUpperCase()) {
						getBLEDeviceCharacteristics(deviceId, res.services[i].uuid)
					}
				}
			},
			fail: (err) => {
				console.log(err, '获取服务失败')
			}
		})
	}, 6000)
	//#endif


	//#ifdef MP-WEIXIN
	uni.getBLEDeviceServices({
		deviceId,
		success: (res) => {
			console.log(res, '获取蓝牙设备所有服务');
			for (let i = 0; i < res.services.length; i++) {
				console.log(res.services[i].uuid, service_uuid)
				// 消息服务
				if (res.services[i].uuid == service_uuid ||
					res.services[i].uuid == service_uuid.toUpperCase()) {
					getBLEDeviceCharacteristics(deviceId, res.services[i].uuid)
				}
			}
		},
		fail: (err) => {
			console.log(err, '获取服务失败')
		}
	})
	//#endif



}


// connect step 3
// 初始化特征值
function getBLEDeviceCharacteristics(deviceId, serviceId) {
	uni.getBLEDeviceCharacteristics({
		deviceId,
		serviceId,
		success: (res) => {
			console.log(res,'通知特征值')
			for (let i = 0; i < res.characteristics.length; i++) {
				let item = res.characteristics[i]
				
				const itemUUID = item.uuid.toUpperCase();
				const primaryNotifyUUID = notify_characteristic.toUpperCase();
				const secondaryNotifyUUID = notify_characteristic_2.toUpperCase();

				// Check if the characteristic is one of the notification sources
				if (itemUUID === primaryNotifyUUID || itemUUID === secondaryNotifyUUID) {
					if (item.properties.notify || item.properties.indicate) {
						uni.notifyBLECharacteristicValueChange({
							deviceId,
							serviceId,
							characteristicId: item.uuid,
							state: true,
							success: () => {
								console.log(`已成功监听特征值: ${item.uuid}`);
							},
							fail: (err) => {
								console.error(`监听特征值 ${item.uuid} 失败:`, err);
							}
						});
					}
				}

				if (itemUUID === write_characteristic.toUpperCase()) {
					if (item.properties.write) {}
				}
			}
		},
		fail: (res) => {
			console.error('getBLEDeviceCharacteristics', res)
		}
	})
	// notify的回调函数，操作之前先监听，保证第一时间获取数据
	// 针对不同特征值的回调处理
	uni.onBLECharacteristicValueChange((res) => {
		let result = ab2hex(res.value)

		// 打印来自 notify_characteristic_2 的数据
		if (res.characteristicId.toUpperCase() === notify_characteristic_2.toUpperCase()) {
			console.log(`接收到来自 [notify_characteristic_2] 的原始Hex数据: ${result}`);

            if (result.startsWith('fc') && result.endsWith('ff')) {
                const macHex = result.substring(2, result.length - 2);
                const macAddress = macHex.match(/.{1,2}/g).reverse().join(':').toUpperCase();
                console.log(`[notify_characteristic_2] 解析后的MAC地址: ${macAddress}`);
                if (macCallback && typeof macCallback === 'function') {
                    macCallback(macAddress);
                }
				return;
            } else if (result.startsWith('fb') && result.endsWith('ff')) {
                const dataHex = result.substring(2, result.length - 2);
                const batteryHex = dataHex.substring(0, 2);
                const batteryLevel = parseInt(batteryHex, 16);
                lastBatteryLevel = batteryLevel;
                console.log(`[notify_characteristic_2] 解析后的电量: ${batteryLevel}%`);
                if (batteryCallback && typeof batteryCallback === 'function') {
                    batteryCallback(batteryLevel);
                }
				return;
            }
		}
		
		// This is the original logic for the primary notification characteristic.
		// It is now generalized to handle responses from either characteristic if not handled above.
		console.log('通知特征值',result)

		let length = result.length
		let len = parseInt(splitByLen(result.substr(2, 4), 2).reverse().join(''), 16)
		// console.log(len)
		let checkArrHex = splitByLen(result.substr(0, length - 4), 2)
		// console.log(checkArrHex)
		let checkArr = checkArrHex.map(e => parseInt(e, 16))
		// console.log(checkArr)
		let sendCheckSum = result.substr(-4)
		let checkSum = getCheckSum(checkArr).map(e => e.toString(16).padLeft(2, '0')).join('')
		// console.log(checkSum)
		// console.log(sendCheckSum)
		// console.log(sendCheckSum === checkSum)
		if (sendCheckSum === checkSum) {
			let type = parseInt(result.substr(8, 2), 16)
			// console.log(type)
			// console.log(realtimeType)
			if (realtimeType == type && realtimeCallback && typeof realtimeCallback == 'function') {
				realtimeType = undefined
				let tempCallback = realtimeCallback
				realtimeCallback = undefined
				tempCallback(result)
				// console.log('realtimeType ', realtimeType)
			}
			continueExecute()
		} else {
			uni.hideLoading() // 校验值不对的情况
			continueExecute()
		}
	})
	connectCallback(deviceId)
}


// 获取当前是否连接上
export function getConnected() {
	return connected
}

// 设置自动连接的 mac 地址
function setAutoMac(arr) {
	auto_mac_backup = arr
	auto_connect = true
	openBluetoothAdapter()
	startAutoConnect()
}

/**
 * 开启全局自动连接
 */
function startAutoConnect() {
	auto_connect = true
	autoConnectTimer = setInterval(() => {
		if (auto_connect) {
			if (!connected) {
				console.log('自动连接扫描 ', isOpen)
				if (isOpen) {

				} else {
					if (isBleOn) {
						openBluetoothAdapter()
					}
				}
			}
		}
	}, 1000 * 3)
}

/**
 * 关闭全局自动连接
 */
function closeAutoConnect() {
	auto_connect = false
	clearInterval(autoConnectTimer)
}

/**
 * 取消全局自动连接
 */
function cancelAutoConnect() {
	auto_connect = false
	auto_mac = []
	autoConnectCallback = ''
	clearInterval(autoConnectTimer)
	closeBluetoothAdapter()
}


// 获取暂存的扫描到的设备数组
function getDevices() {
	if (device) {
		devices.push(device)
	}
	return devices
}

// 重置扫描到的设备数组
export function resetDevices() {
	devices = [];
}

// write msg 发送指令
// msg 为 hexstring 形式
function writeBLECharacteristicValue(characteristicId, msg) {
	if (connected == false) {
		reconnectDevice();
		return;
	}
	let buffer = hexArr2ab(msg);
	waitingForResult = true; //等待通知返回结果。
	let len = buffer.byteLength
	let arr = []
	if (len > 20) {
		for (let i = 0, j = 0; i < len; i += 20) {
			let start = j * 20;
			let end = start + 20 > len ? len - start : 20
			let data = Uint8Array.from(new Uint8Array(buffer, start, end))
			// console.log(data)
			// let tempBuffer = data.buffer.slice(start, end)
			// console.log(tempBuffer)
			arr.push(data.buffer)
			j++
		}
		stopFlag = false
		writeData(characteristicId, arr)
	} else {
		stopFlag = false
		writeData(characteristicId, [buffer])
	}

}

let stopFlag = false
let timeoutTimer = ''
let timeoutCallback = ''

function writeData(characteristicId, buffer) {
	console.log('准备发送');
	clearTimeout(timeoutTimer)
	// console.log(buffer)
	if (stopFlag) {
		return
	}
	uni.writeBLECharacteristicValue({
		deviceId,
		serviceId: service_uuid,
		characteristicId,
		value: buffer[0],
		success: (res) => {
			if (realtimeCallback) {
				let str = `写入 ${ab2hex(buffer[0])}`
				console.log(str)
			}
			// 写入一次进度条就前进
			if (writeCallback && typeof writeCallback == 'function') {
				let str = `写入 ${ab2hex(buffer[0])}`
				console.log('分包发送了一次');
				writeCallback(str);
			}
			
			if (!stopFlag && buffer.length > 1) {
				writeData(characteristicId, buffer.slice(1))
			} else {
				let time = new Date().getTime()
				// console.log('time ', time)
				timeoutTimer = setTimeout(() => {
					if (timeoutCallback && typeof timeoutCallback == 'function') {
						timeoutCallback()
					}
				}, 2000)
			}
		},
		fail: (res) => {
			cmdList = [] // 这里清空指令， 放弃队列中所有指令，为后续新指令的到来做准备
			waitingForResult = false;
			console.error('write failed ', res);
			uni.showToast({
				title: '请重新连接'
			});
			uni.navigateTo({
				url: '/pages/search/index'
			})
		},
	})
}
// 550800019301112f
// 550800019105118c

//重连设备
function reconnectDevice() {
	// #ifdef MP-WEIXIN
	uni.offBLEConnectionStateChange(listener) // 先移除
	// #endif
	reconnectTimes = 0;
	clearInterval(reconnectTimer)
	if (manualDisconnect) // 主动断开的不做处理
		return
	uni.hideLoading()
	uni.showLoading({
		mask: true,
		title: '重连中...'
	})
	reconnect()
	reconnectTimer = setInterval(
		() => {
			console.log('重连?>>>>>>>');
			reconnect()
		}, 3000); // 7000
}

function reconnect() {
	if (connected) //已连接
	{
		reconnectTimes = 0;
		clearInterval(reconnectTimer)
		return
	}
	if (reconnectTimes >= 2) //超时 // 9
	{
		reconnectTimes = 0;
		clearInterval(reconnectTimer)
		uni.hideLoading()
		showModal()
		return
	} else {
		reconnectTimes += 1
		if (isOpen) {
			if (!auto_connect) {
				connectNow()
			}
		} else {
			if (isBleOn) {
				openBluetoothAdapter(true)
			}
		}
	}
}

function connectNow() {
	if (!isConnecting) {
		isConnecting = true
		// #ifdef MP-WEIXIN
		uni.offBLEConnectionStateChange(listener) // 先移除
		// #endif
		//监听蓝牙连接状态
		uni.onBLEConnectionStateChange(listener)
		uni.createBLEConnection({
			deviceId: deviceId,
			timeout: 3000,
			success: (res) => {
				uni.hideLoading()
				device = devices.find(item => item.deviceId == deviceId)
				isConnecting = false
				connected = true
				reconnectTimes = 0;
				clearInterval(reconnectTimer) //结束循环
				getBLEDeviceServices(deviceId)


			},
			fail: (res) => {
				isConnecting = false
			}
		})
	}
}


// 获取当前状态
// 用于下拉刷新
function getBluetoothAdapterState() {
	uni.getBluetoothAdapterState({
		success: (res) => {
			if (!res.available) {
				openBluetoothAdapter()
			} else {
				uni.stopBluetoothDevicesDiscovery({
                    complete: () => {
                        startBluetoothDevicesDiscovery();
                    }
                })
			}
		},
		fail: (err) => {}
	})
}

// 断开蓝牙设备连接
function closeBLEConnection(close, callback, sameDevice) {
	try {
		// console.log('123', close)
		if (close) {
			manualDisconnect = true;
		}
		console.log('123', deviceId)
		if (deviceId) {
			uni.closeBLEConnection({
				deviceId: deviceId,
				success: (res) => {
					handleCloseBle(close, callback, sameDevice)
				},
				fail: (err) => {
					if (err.errCode == 10006) {
						handleCloseBle(close, callback, sameDevice)
					}
				}
			})
		} else {
			// console.log('123', typeof callback == 'function')
			if (callback && typeof callback == 'function') {
				callback()
			}
		}
	} catch (error) {
		uni.hideLoading()
		console.log(error)
	}
}

function handleCloseBle(close, callback, sameDevice) {
	if (!sameDevice) {
		deviceId = ''
	}
	connected = false
	lastBatteryLevel = 'N/A';
	// 手动断开连接处理
	if (close) {
		closeBluetoothAdapter(true)
	}
	if (callback && typeof callback == 'function') {
		callback()
	}
}

// 关闭蓝牙扫描
function stopBluetoothDevicesDiscovery() {
	isConnecting = false;
	uni.stopBluetoothDevicesDiscovery({
		success: (res) => {
		}
	})
}

export const stopBlue = stopBluetoothDevicesDiscovery;

// 关闭蓝牙适配器
function closeBluetoothAdapter(doCallback) {
	uni.stopBluetoothDevicesDiscovery({
		success: (result) => {
			uni.closeBluetoothAdapter({
				success: (res) => {
					// 手动断开连接处理
				}
			})
		}
	})
}

// 蓝牙断开 弹窗提示 (重连不可连上)
function showModal() {
	deviceId = ''
	devices = []
	// auto_connect = true // 开启全局自动连接
	openBluetoothAdapter(true)
	// startAutoConnect()
	uni.showModal({
		content: '设备重连失败，已断开连接！',
		showCancel: false,
		success() {
			uni.reLaunch({
				url: '/pages/search/index'
			});
		}
	})
}

// #################################################
// #
// #    Utility Functions
// #
// #################################################

///////////////////    工具函数    /////////////////////
function splitByLen(str, len) {
	let length = str.length
	let newArr = []
	for (let i = 0; i < length; i += len) {
		newArr.push(str.substr(i, len))
	}
	return newArr
}

function arrayBufferToString(arr) {
	if (typeof arr === 'string') {
		return arr;
	}
	var dataview = new DataView(arr);
	var ints = new Uint8Array(arr.byteLength);
	for (var i = 0; i < ints.length; i++) {
		ints[i] = dataview.getUint8(i);
	}
	arr = ints;
	var str = '',
		_arr = arr;
	for (var i = 0; i < _arr.length; i++) {
		var one = _arr[i].toString(2),
			v = one.match(/^1+?(?=0)/);
		if (v && one.length == 8) {
			var bytesLength = v[0].length;
			var store = _arr[i].toString(2).slice(7 - bytesLength);
			for (var st = 1; st < bytesLength; st++) {
				store += _arr[st + i].toString(2).slice(2);
			}
			str += String.fromCharCode(parseInt(store, 2));
			i += bytesLength - 1;
		} else {
			str += String.fromCharCode(_arr[i]);
		}
	}
	return str;
}


function inArray(arr, key, val) {
	for (let i = 0; i < arr.length; i++) {
		if (arr[i][key] === val) {
			return i;
		}
	}
	return -1;
}

// 字符串转为ArrayBuffer对象，参数为字符串，注意这里的字符串为非hex字符串
function stringToArrayBuffer(str) {
	var bytes = new Array();
	var len, c;
	len = str.length;
	for (var i = 0; i < len; i++) {
		c = str.charCodeAt(i);
		if (c >= 0x010000 && c <= 0x10FFFF) {
			bytes.push(((c >> 18) & 0x07) | 0xF0);
			bytes.push(((c >> 12) & 0x3F) | 0x80);
			bytes.push(((c >> 6) & 0x3F) | 0x80);
			bytes.push((c & 0x3F) | 0x80);
		} else if (c >= 0x000800 && c <= 0x00FFFF) {
			bytes.push(((c >> 12) & 0x0F) | 0xE0);
			bytes.push(((c >> 6) & 0x3F) | 0x80);
			bytes.push((c & 0x3F) | 0x80);
		} else if (c >= 0x000080 && c <= 0x0007FF) {
			bytes.push(((c >> 6) & 0x1F) | 0xC0);
			bytes.push((c & 0x3F) | 0x80);
		} else {
			bytes.push(c & 0xFF);
		}
	}
	var array = new Int8Array(bytes.length);
	for (var i in bytes) {
		array[i] = bytes[i];
	}
	return array.buffer;
}

function hexArr2ab(hexArr) {
	let buffer = new ArrayBuffer(hexArr.length)
	let dataView = new DataView(buffer)
	for (var i = 0; i < hexArr.length; i++) {
		dataView.setUint8(i, hexArr[i])
	}
	return buffer;
}

function hexStr2ab(hexStr) {
	let buffer = new ArrayBuffer(hexStr.length / 2)
	let dataView = new DataView(buffer)
	for (var i = 0, j = 0; i < hexStr.length; i += 2, j++) {
		let _str = "0x" + hexStr.substr(i, 2)
		dataView.setUint8(j, parseInt(_str, 16))
	}
	return buffer;
}
// ArrayBuffer转16进度字符串示例
function ab2hex(buffer) {
	var hexArr = Array.prototype.map.call(
		new Uint8Array(buffer),
		function(bit) {
			return ('00' + bit.toString(16)).slice(-2)
		}
	)
	return hexArr.join('');
}

function hexStr2HexArr(hexStr) {
	var a = [];
	for (var i = 0; i < hexStr.length; i += 2) {
		let _str = "0x" + hexStr.substr(i, 2)
		a.push(parseInt(_str, 16));
	}
	return a;
}

function hexArr2HexStr(hexArr) {
	let arr = []
	hexArr.forEach(item => {
		arr.push(item.toString(16).padLeft(2, '0'))
	})
	return arr.join('')
}

// 10进制转16进制补0
function dec2hex(dec, len) { //10进制转16进制补0
	var hex = "";
	while (dec) {
		var last = dec & 15;
		hex = String.fromCharCode(((last > 9) ? 55 : 48) + last) + hex;
		dec >>= 4;
	}
	if (len) {
		while (hex.length < len) hex = '0' + hex;
	}
	return hex;
}
// 10进制转16进制补0
function string_hex2int(hex) { //16进制转10进制
	var len = hex.length,
		a = new Array(len),
		code;
	for (var i = 0; i < len; i++) {
		code = hex.charCodeAt(i);
		if (48 <= code && code < 58) {
			code -= 48;
		} else {
			code = (code & 0xdf) - 65 + 10;
		}
		a[i] = code;
	}
	return a.reduce(function(acc, c) {
		acc = 16 * acc + c;
		return acc;
	}, 0);
}

//校验和
function checkSumResult(hexStr, len) //返回校验和的hexstring
{
	let abData = hexStr2HexArr(hexStr)
	var ucI = 0,
		ucJ = 0;
	var uiCrcValue = 0xffff;
	for (ucI = 0; ucI < len; ucI++) {
		uiCrcValue = (uiCrcValue ^ (abData[ucI] & 0xff));
		for (ucJ = 0; ucJ < 8; ucJ++) {
			if ((uiCrcValue & 0x0001) == 1) {
				uiCrcValue = ((uiCrcValue >> 1) ^ 0x8408);
			} else {
				uiCrcValue = (uiCrcValue >> 1);
			}
		}
	}
	//校验和为uiCrcValue 的高低位互换
	var hexStr = dec2hex(uiCrcValue, 4);
	var resultStr = hexStr.substr(2, 2) + hexStr.substr(0, 2)
	return resultStr;
}

function Uint8ToStr(arr) {
	for (var i = 0, str = ''; i < arr.length; i++)
		str += String.fromCharCode(arr[i]);
	return str;
}

function strToUint8(str) {
	for (var i = 0, arr = []; i < str.length; i++) {
		arr.push(str.charCodeAt(i));
	}
	return new Uint8Array(arr);
}

export function getDiscoveredDevices() {
	return [...devices];
}

// 手动断开蓝牙
export function manualDisconnectDevice() {
	closeBLEConnection(true);
}