var express = require('express');

var cookie  = require('cookie-parser')

var crypto = require('crypto');

var app = express();

app.use(cookie());

app.get('/', function(req, res){

    var counter = parseInt(req.cookies.counter) || 0;

    res.cookie('counter', counter + 1);

    if (counter >= 5) {

	res.write('You are a valued customer ' + 

		  'visting the site ' + counter + ' times.');

    } else {

	res.write('This is visit number '+ counter +'!');

    }

    res.end();

});

// starting the server

app.listen(8000);

console.log("Server running at http://127.0.0.1:8000/");