const net = require('net');
const fs = require('fs');
const server = net.createServer();
const port = 9000;
// server.on('connection', handleConnection);
// server.listen(port, function() {
//     console.log('server listening to %j', server.address());
// });
//
// function handleConnection(conn) {
//     conn.setEncoding('utf8');
//     var remoteAddress = conn.remoteAddress + ':' + conn.remotePort;
//     console.log('new client connection from %s', remoteAddress);
//
//     conn.on('data', onConnData);
//     conn.once('close', onConnClose);
//     conn.on('error', onConnError);
//
//     function onConnData(d) {
//         console.log('connection data from %s: %j', remoteAddress, d);
//         var msg = 'connection data from '+ remoteAddress +' : ' + d;
//         hex.toString()
//         //conn.write(d);
//         fs.appendFile('message.txt', msg, function (err) {
//             if (err) throw err;
//             console.log('Saved!');
//         });
//
//     }
//
//     function onConnClose() {
//         console.log('connection from %s closed', remoteAddress);
//     }
//
//     function onConnError(err) {
//         console.log('Connection %s error: %s', remoteAddress, err.message);
//     }
// }

function stringToHex(arr) {

    let buffer = Buffer.from(arr);
    console.log(buffer.toString('hex'));
    let hexaa = Buffer.from(buffer.toString('utf-8'));
    console.log('ascii --> '+ hexaa.toString('ascii'));
    // let bufStr = Buffer.from(arr, "utf-8");
    //
    //
    // for (const b of bufStr) {
    //     let bufStr = Buffer.from(b.toString(), 'utf-8');
    //     //let hexa = bufStr.toString('ascii');
    //     console.log(bufStr.toString('hex'));
    //     //console.log(bufStr.toString('hex'))
    // }

    // for(i = 0; i< arr.length; i++){
    //     console.log(arr[i]);
    //     let bufStr = Buffer.from(arr[i]);
    //     console.log(bufStr.toString('hex'))
    // }
    //converting string into buffer
    // let bufStr = Buffer.from(str, 'ascii');
    //let bufStr = Buffer.from(str, 'utf8');

    //with buffer, you can convert it into hex with following code
    // console.log(bufStr.toString('hex'));
     //console.log(bufStr.toString('ascii'));

}

//stringToHex('\u0013D\u0006d\u0000\u0001\u0000\u0006');
stringToHex([120,120,60,34,1,3,89,81,0,133,22,9,85,22,2,17,22,5,0,22,2,17,22,5,1,198,3,14,11,49,5,65,133,212,0,56,210,9,2,212,6,11,232,0,195,132,70,7,217,41,100,0,2,0,38,252,0,45,74,0,9,167,44,13,10]);
//{"type":"Buffer","data":[120,120,60,34,1,3,89,81,0,133,22,9,85,22,2,17,22,5,0,22,2,17,22,5,1,198,3,14,11,49,5,65,133,212,0,56,210,9,2,212,6,11,232,0,195,132,70,7,217,41,100,0,2,0,38,252,0,45,74,0,9,167,44,13,10]