let rubyResponse = {};


// Timestamp    for log
var date = new Date();
var timeStamp = date.getTime();

//richieo l' ndirizzo ip al client
var ip = req.headers['x-forwarded-for'] ||
    req.connection.remoteAddress ||
    req.socket.remoteAddress ||
    req.connection.socket.remoteAddress;;


//crypto il timestamp da inviare al server ruby
const shasum = crypto.createHash('sha1');
const update = shasum.update(timeStamp.toString());
const cryptoStamp = shasum.digest('hex');
//creo un token con una scadenza
const token = jwt.sign({ userId: req.body.userid }, config.secret, { expiresIn: '4m' }) // Create a token for client

//creo un oggetto json da inviare al server in Ruby
const obj = {
    userid: req.body.userid,
    password: req.body.password,
    sessionId: cryptoStamp,
    data: timeStamp,
    ipUser: ip,
    active: token

}

//creo un Json di Option da passare come header alla chiamata al server
var options = {
    host: '',
    port: 80,
    path: '/users/login',
    method: 'POST',
    headers: {
        'Content-Type': 'application/x-www-form-urlencoded',
        //imposto la lungezza del dato di tipo buffer
        'Content-Length': Buffer.byteLength(JSON.stringify(obj))
    }
};


//make a request to other server
var req = http.request(options, (resp) => {
    let data = '';

    resp.setEncoding('utf8');
    resp.on('data', (chunk) => {
       // console.log("body: " + chunk);

        data += chunk;
    });

    resp.on('end',() => {
       // console.log(data)
        rubyResponse = JSON.parse(data);

        if(rubyResponse.authenticatedUser){
            const token = jwt.sign({ userId: rubyResponse.userid }, config.secret, { expiresIn: '4m' }) // Create a token for client

            res.json({ success: true, message: 'Hai effettuato il login', token: token, user: { username: rubyResponse.userid } });

        }else{
            res.json({
                "Autenticazione":rubyResponse.authenticatedUser,
                "Msg":"credenziali sbagliate"
            });
        }



    })


})
//error handling from http request
.on("error", (err) => {
    console.log("Error: " + err.message);
    res.json({
        "msg": err.message,
        "info": `server spento : ${err.message}`
    })
});

//closing call end finish
req.write(JSON.stringify(obj));

req.end();