class HexUtil {
    /** @param {Buffer} buffer */
    static debugDump(buffer) {
        let hexLine = '';
        let chrLine = '';
        let out = '';
        out += "Buffer length: " + buffer.length + " bytes\n";
        for(let i = 0; i < buffer.length; i++) {
            const sliced = buffer.slice(i,i+1);
            hexLine += sliced.toString('hex')+' ';
            let chr = sliced.toString();
            if(chr < ' ' || chr > '~') chr = ' ';
            chrLine += chr+'  ';
            if(hexLine.length > 60 || i === buffer.length - 1) {
                out += hexLine + '\n';
                out += chrLine + '\n';
                hexLine = chrLine = '';
            }
        }
        return out;
    }
}

module.exports = HexUtil;