const common = require('../common.js'); // const readServiceID = '00001811-0000-1000-8000-00805F9B34FB'
// const readID = '000036F6-0000-1000-8000-00805F9B34FB'
// const writeServiceID = '0000FEE7-0000-1000-8000-00805F9B34FB'
// const writeID = '0000FEE7-0000-1000-8000-00805F9B34FB'

const readServiceID = '00001811-0000-1000-8000-00805F9B34FB';
const readID = '000036F6-0000-1000-8000-00805F9B34FB';
const writeServiceID = '00001811-0000-1000-8000-00805F9B34FB';
const writeID = '0000FEE7-0000-1000-8000-00805F9B34FB';
const MTU = 115;

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

function isSingleBt() {
    return true;
}

function isDevice(device, data) {
    console.log('是否是当前设备');
    console.log(data);
    console.log(device);
    var reg = new RegExp(':', 'g');
    var daeviceBtId = data.deviceId.replace(reg, '');

    if (daeviceBtId === device.btid) {
        console.log('是当前设备' + device.btid);
        return true;
    }

    return false; // const advertisData = new Uint8Array(data.advertisData)
    // const mac = device.btid.split('').map((p, i) => parseInt(p + device.btid[i + 1], 15)).filter((p, i) => i % 2 == 0)
    // if (advertisData.slice(0, 4).toString() == [0x0A, 0xFF, 0x01, 0x02].toString() &&
    //   advertisData.slice(4, 10).toString() == mac.toString()) {
    // return true
    // }
    // return false
}

function sendCommand(cmd, data = []) {
    data = [cmd, data.length].concat(data);
    return common.completArrayCRC(data, data.length);
}

function readData(device, value, data) {
    var value = new Uint8Array(value);
    console.log(value);

    if (value.length > 17) {
        switch (value[5]) {
            case 0x0f:
                {
                    data.quantity = value[12];
                    data.voltage = Math.round(value[14] * 0x100 + value[15]) / 100;
                }
                break;
        }
    }

    return data;
}

function stateUpdate(device, deviceId) {
    console.log('获取电池信息');
    var data = [[0x5a, 0x58, 0x3a, 0x00, 0x00, 0x0f, 0xfb]];
    return data;
}

function turnOn(device, deviceId) {
    console.log('恢复通电');
    var data = [[0x5a, 0x58, 0x3a, 0x00, 0x00, 0x00, 0xec]];
    return data;
}

function turnOff(device, deviceId) {
    console.log('断电');
    var data = [[0x5a, 0x58, 0x3a, 0x00, 0x00, 0x01, 0xed]];
    return data;
}

module.exports = {
    readServiceID: readServiceID,
    readID: readID,
    writeServiceID: writeServiceID,
    writeID: writeID,
    MTU: MTU,
    acceptDevice: acceptDevice,
    isDevice: isDevice,
    readData: readData,
    stateUpdate: stateUpdate,
    turnOn: turnOn,
    turnOff: turnOff,
    isSingleBt: isSingleBt
};