Mclimate T-Valve Uplink decoder

tvalve-uplink-decoder.js

//decoder

function buf2hex(buffer) { // buffer is an ArrayBuffer
  return [...new Uint8Array(buffer)]
      .map(x => x.toString(16).padStart(2, '0'))
      .join('');
}

let payload = 'YGUAALI=';
// let decoded = Buffer.from(payload, 'base64');
// let hex = '64620000A4';
// let hex = '0044';
// let hex = buf2hex(decoded);
let hex = buf2hex(Buffer.from(payload, 'base64'));
console.log(hex);
function Decoder(bytes){
    let byteArray = bytes.match(/.{1,2}/g).map(byte => 
            (parseInt(byte, 16).toString(2)).padStart(8, '0')
        )
    console.log(byteArray)
    let messageTypes = ['keepalive', 'testButtonPressed', 'floodDetected', 'controlButtonPressed', 'fraudDetected'];
    const toBool = value => value == '1';
    const shortPackage = (byteArray) => {
        return {
            reason: messageTypes[parseInt(byteArray[0].slice(0, 2))],
            valveState: toBool(byteArray[0][3]),
            boxTamper: toBool(byteArray[0][4]),
            floodDetectionWireState: toBool(byteArray[0][5]),
            flood: toBool(byteArray[0][6]),
            magnet: toBool(byteArray[0][7]),
            alarmValidated: toBool(byteArray[1][0]),
            manualOpenIndicator: toBool(byteArray[1][1]),
            manualCloseIndicator: toBool(byteArray[1][2]),
        }
    }
    const longPackage = (byteArray) => {
        return {
            reason: messageTypes[parseInt(byteArray[0].slice(0, 2))],
            valveState: toBool(byteArray[0][3]),
            boxTamper: toBool(byteArray[0][4]),
            floodDetectionWireState: toBool(byteArray[0][5]),
            flood: toBool(byteArray[0][6]),
            magnet: toBool(byteArray[0][7]),
            alarmValidated: toBool(byteArray[1][0]),
            manualOpenIndicator: toBool(byteArray[1][1]),
            manualCloseIndicator: toBool(byteArray[1][2]),
            closeTime: parseInt(byteArray[2], 2),
            openTime: parseInt(byteArray[3], 2),
            temp1: parseInt(byteArray[4], 2),
            temp2: parseInt(byteArray[5], 2),
            battery: (parseInt(byteArray[6], 2) * 4) + 3000,
        }
    }
    if(byteArray.length > 2){
        return longPackage(byteArray);
    }else{
        return shortPackage(byteArray);
    }
}
Decoder(hex);