var express = require('express');
var router = express.Router();
const uuidv4 = require('uuid/v4');
var http = require('http');

router.post('/login', function (req, res, next) {
    req.checkBody('username', 'Username is mandatory').notEmpty();
    req.checkBody('password', 'Password is mandatory').notEmpty();

    var response;
    var username = req.body.username;
    var password = req.body.password;
    var credentials = configuration.app.credentials;

    if (credentials.username === username && credentials.password === password) {

        function getJSON(options,cb){
    http.request(options,function(res){
    var body ='';
    res.on('data', function(chunk){
        body+=chunk;
    });

    res.on('end',function(){
        var result = JSON.parse(body.tokenId);
        cb(null, result);
    })
    res.on('error', cb);

    })
    .on('error',cb)
    .end();

    }

        var options = {
            host: 'kapua.comtrade.com',
            port: '8081',
            path: '/v1/authentication/user',
            method: 'GET'
        };
        getJSON(options, function(err,result){
    if (err){
        return console.log('Error - Getting token', err);
    }else {
        console.log('Kapua token:', result);

    }

});

        // var token = uuidv4(); STARI TOKEN.
        var token = result; //Kapua token.

        response = {success: true, message: 'User successfully logged in', tokenId: token};
        tokens.push(token);
        // req.session.authUser = {username: username};

    } else {
        response = {success: false, message: 'Wrong credentials'};
    }

    res.json(response);
});

router.post('/logout', function(req, res, next) {
    req.checkBody('token', 'Token is mandatory').notEmpty();
    var token = req.body.token;
    for(var i = tokens.length - 1; i >= 0; i--) {
        if(tokens[i] === token) {
            tokens.splice(i, 1);
                // req.session.destroy();
                res.json({success: true, message: 'Logout successful'});
        }
    }

    res.json({success: false, message: 'Logout error'});

});

router.post('/check-login-status', function(req, res, next) {
    res.json({
        status: typeof req.session.authUser !== 'undefined' &&
                typeof req.session.authUser.username !== 'undefined'
    });
});

module.exports = router;