const common = require('../common.js');

const FMBMS = require('./FMBMS.js');

const readServiceID = '0000FEE7-0000-1000-8000-00805F9B34FB';
const readID = '000036F6-0000-1000-8000-00805F9B34FB';
const writeServiceID = '0000FEE7-0000-1000-8000-00805F9B34FB';
const writeID = '000036F5-0000-1000-8000-00805F9B34FB';
const MTU = 115;
const app = getApp();
let subIndex = -1
let commands = []; // 升级包指令数组，每个指令是一个 ArrayBuffer
let currentCommandIndex = 1;

function acceptDevice(device) {
	return device.btid ? true : false;
}

function isSingleBt() {
	console.log('是单蓝牙');
	return true;
}

function haveBms() {
	console.log('是单蓝牙并且带bms');
	return true;
}

function isDevice(device, data) {
	// console.log(device,data,'device111');
	const advertisData = new Uint8Array(data.advertisData);
	// console.log(advertisData,'判断返回第几个字段是正常模式还是升级模式');
	//打印返回广播 判断返回字段是正常模式还是升级模式
	// console.log(advertisData.slice(4, 10).toString(),'device2222');
	const mac = device.btid
		.split('')
		.map((p, i) => parseInt(p + device.btid[i + 1], 16))
		.filter((p, i) => i % 2 == 0);

	// if ( advertisData.slice(4, 10).toString() == "095A5832") {
	//     return true;
	// }
		//判断是否是智寻的蓝牙
	const result = data.name.startsWith("ZX");
	// if (data.name === "865416038002201") {
	// if (data.name === "ZX2503140000000") {
	if (result) {
		return true
	}

	return false;
}

function alterConnect(device, deviceId) {
	// console.log(device,app.globalData.connectionState[deviceId],'deviceliuwei');
	//登录 crc[0x1F,0x0F,0x5A,0x58,0x32,0x32,0x30,0x32,0x32,0x32,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x08,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x67,0xAC,0x53,0xE7,0x08,0x00]
	//登录 [[0x22,0x22,0x01,0x1F,0x0F,0x5A,0x58,0x32,0x32,0x30,0x32,0x32,0x32,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x08,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x67,0xAC,0x53,0xE7,0x08,0x00,crc_data,0xAA,0xAA]]
	//时间戳 0x67AC53E7 0x65,0xB3,0xED,0x6F 16:00:05
	//切换正常，工厂下发指令 [[0x22,0x22,0x54,0x01,0x01,0x12,0xAA,0xAA]]
	//OTA 升级指令 [[0x22,0x22,0x30,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,n,0xCB,0xAA,0xAA]]

	// const data = [0x1F, 0x0F, ,0x5A,0x58, 0x35, 0x32, 0x30, 0x32, 0x32, 0x32, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
	let data=[ 0x1F, 0x0F]
	const device_name=app.globalData.connectionState[deviceId].deviceName
	const device_sn=stringToHexArray(device_name)
	data.push(...device_sn)
	data.push(0x08, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x67, 0xAC, 0x53, 0xE7, 0x08, 0x00)
	// const data=[ 0x1F, 0x0F,0x38, 0x36, 0x35, 0x34, 0x31, 0x36, 0x30, 0x33, 0x38, 0x30, 0x30, 0x32, 0x32, 0x30, 0x31,0x08, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x67, 0xAC, 0x53, 0xE7, 0x08, 0x00]
	// console.log(data,'datatest');
	const crc_data = '0x'+crc8IEEE8023(data).toString(16).toUpperCase()
	data.push(crc_data,0xAA,0xAA)
	data.unshift(0x22,0x22,0x01)
	
	return [data]
}

function crc8IEEE8023(data) {
    const poly = 0x07; // IEEE 802.3 polynomial x^8 + x^2 + x + 1
    let crc = 0x00;

    for (let i = 0; i < data.length; i++) {
        crc ^= data[i];
        for (let j = 0; j < 8; j++) {
            if (crc & 0x80) {
                crc = ((crc << 1) ^ poly) & 0xFF;
            } else {
                crc = (crc << 1) & 0xFF;
            }
        }
    }
    return crc;
}

function stringToHexArray(str) {
  const result = [];
  for (let i = 0; i < str.length; i++) {
    const charCode = str.charCodeAt(i); // 获取字符的 ASCII 码值
	const hexValue=`0x${charCode.toString(16).toUpperCase()}`
	const hexDataValue=parseInt(hexValue,16)
    result.push(hexDataValue);
  }
  return result;
}



//收到硬件方向软件方发送的数据
function readData(device, value, data) {
	// console.log(value, 'test1111');
	var value = new Uint8Array(value);
	const normalArray = Array.from(value); // 或 [...uint8Array]
	console.log(normalArray,currentCommandIndex-1,commands[currentCommandIndex-1], 'value**************************');
	switch (normalArray[1]) {
		case 0x01:
			uni.showModal({
				title: '提示',
				confirmText: '开始升级',
				content: '登陆成功，当前处于升级模式是否开始升级',
				success: function(res) {
					if (res.confirm) {
						currentCommandIndex=0
						otaUpgrade().then(()=>{
							//登陆成功  且当前为升级模式可以发送升级文件
							sendNextCommand(device.mac_id)
						})
					} else {}
				}
			});
			break;
	}
	switch(normalArray[3]){
		case 0x00:
		sendNextCommand(device.mac_id)
		break;
		
		
		case 0x01:
		uni.hideLoading();
		common.simpleToast('升级文件回复失败', 2000)
		// test() 升级文件回复失败
		break;
	}
	
	
		


	return data;
}


//发送指令封装
function sendCommand(cmd, data = []) {
	let cmdData = [0x02, 0x02]
	// cmdData.push(cmd)
	//协议号 cmd
	//包长度 data.length
	const dataLen=ensureInteger(data.length)
	//信息内容 cmd
	//crc校验
	const pData=[dataLen,cmd]
	const crcData='0x'+crc8IEEE8023(pData).toString(16).toUpperCase()
	cmdData.push(cmd,dataLen,crcData,0xAA, 0xAA)
	return cmdData
}
//转成16进制
function ensureInteger(cmd){
	return parseInt((cmd).toString(16).toUpperCase(), 16)
}

function turnOnCar(device, deviceId) {
	return [sendCommand(0x02,[0x02])];
}

function turnOffCar(device, deviceId) {
	return [sendCommand(0x03,[0x03])];
}
function defenseCmd(device, deviceId) {
	return [sendCommand(0x04,[0x04])];
}

function switchFactory(device, deviceId) {
	//切换正常，工厂模式指令
	//切换工厂模式 [[0x22,0x22,0x54,0x01,0x01,0x12,0xAA,0xAA]]
	//切换正常模式 [[0x22,0x22,0x54,0x01,0x00,0x15,0xAA,0xAA]]
	return [[0x22,0x22,0x54,0x01,0x01,0x12,0xAA,0xAA]]
	// return [sendCommand([0x54, 0x01, 0x01, 0x12])];
}
//升级按钮
function otaUpgrade(device){
	
	const data = readBinBinarayToCommand()
	data.then(result=>{commands=result})
	
	// console.log(data,'datatest111');
	return data
}
async function readBinBinarayToCommand() {
	let res =await uni.request({
	  url: 'https://opt.bms16.com/ota.BIN', // 文件的网络地址
	  method: 'GET',
	  responseType: 'arraybuffer', // 指定响应类型为 arraybuffer
	});
	const arrayBuffer=res[1].data
	const uint8Array = new Uint8Array(arrayBuffer); // 转换为 Uint8Array
	const test = splitArrayIntoChunks(uint8Array, 80); // 分割成长度为 80 的数组
	const data =makeArr(test)
	// const tests=data.slice(data.length-3)
	// console.log(data.length,tests[0],'testtest数组');
	// console.log(tests,'tests');
	return data
}

function sendNextCommand(mac_id) {
	// console.log(commands[currentCommandIndex],'command');
    if (currentCommandIndex >= commands.length) {
		uni.hideLoading();
		common.simpleToast('所有指令发送完成', 2000)
        return;
    }
	const deviceId = Object.keys(app.globalData.connectionState).find((i) => app.globalData.connectionState[i].device.mac_id == mac_id);
    if (deviceId == undefined) {
		console.log('deviceId == undefined');
        return ;
    }
    const command = [commands[currentCommandIndex]];
	console.log(command,'commandtest');
	if(command.length==0){
		return
	}
	// 将数据转换为ArrayBuffer类型
	var buffer;
	buffer = common.toArrayBuffer(command.shift());
	// console.log(command,'command');
    uni.writeBLECharacteristicValue({
        deviceId: deviceId, // 替换为实际的设备 ID
        serviceId: writeServiceID, // 替换为实际的服务 ID
        characteristicId: writeID, // 替换为可写入的特征值 ID
        value: buffer,
        success() {
            // console.log('指令发送成功，等待设备响应');
        },
        fail(err) {
            console.error('指令发送失败', err);
        }
    });
    currentCommandIndex++;
}

function splitArrayIntoChunks(array, chunkSize) {
    const numChunks = Math.ceil(array.length / chunkSize);
    return Array.from({ length: numChunks }, (_, i) => {
        return array.slice(i * chunkSize, (i + 1) * chunkSize);
    });
}


// 处理分割后的数组
function makeArr(array) {
    const result = [];
	let endPackage;
    for (let i = 0; i < array.length; i ++) {
       
			endPackage = 0x00
		if((i + 1) >= array.length){
			//当前是最后一次循环
			endPackage = 0x01
		}
		//协议号 30 包长度未固定array.length+8 转16进制  固件类型0x00 升级包大小(总包大小) 125396字节-》0x00,0x01,0xE9,0xD4
		let startArray = []
		const packageLen=parseInt((array[i].length+8).toString(16).toUpperCase(), 16)
		
		// const totalPackageSize=[0x00,0x00,0x01,0xE9,0xD4]
		const totalPackageSize=[0x00,0x00,0x01,0xe8,0x24]
		startArray.push(packageLen,...totalPackageSize)
		 //软件包id
		const ids=splitNumber(i)  // 0x00,0x01
		startArray.push(...ids)
		 //是否为最后一个包
		startArray.push(endPackage)
		 //软件数据包
		const formattedChunk = array[i].map(byte => `0x${byte.toString(16).toUpperCase()}`); // 转换为 0xXX 格式 
		startArray.push(...formattedChunk)
		// if(i>95&& i<105){
		// 	console.log(startArray,'startArray-------');
		// }
		//crc检验
		const crcStr='0x'+crc8IEEE8023(startArray).toString(16).toUpperCase()
		const testCrc=parseInt(crcStr,16)
		// if(i>95&& i<105){
		// 	console.log(testCrc,crcStr,'startArray*******');
		// }
		startArray.push(crcStr)
		startArray.push(0xAA,0xAA)
		startArray.unshift(0x22,0x22,0x30)
        result.push(startArray);
    }
	// result.push([0x22,0x22,0x30,0x58,0x00,0x00,0x00,0xE9,0xD4,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x2C,0xAA,0xAA])
    return result;
}



function splitNumber(num) {
    // 将数字转换为字符串
    const numStr = num.toString();

    // 使用正则表达式分割字符串为两位一组
    const parts = numStr.match(/.{1,2}/g) || [];

    // 将字符串数组转换为数字数组
    let result = parts.map(part => parseInt(part, 10));

    // 如果数组长度为 1，前面补一个 0
    if (result.length === 1) {
        result = [0, ...result];
    }

    return result;
}





module.exports = {
	readServiceID: readServiceID,
	readID: readID,
	writeServiceID: writeServiceID,
	writeID: writeID,
	MTU: MTU,
	acceptDevice: acceptDevice,
	isDevice: isDevice,
	alterConnect: alterConnect,
	readData: readData,
	turnOnCar: turnOnCar,
	turnOffCar: turnOffCar,
	isSingleBt: isSingleBt,
	haveBms: haveBms,
	switchFactory: switchFactory,
	otaUpgrade

};