function signup(req, res) {
  res.render('signup');
}

function signupProcess(req, res) {

  //we create a new User to be saved into the database
  var User = require('../../user/models/user');
  var user = new User();
  var utilities = require('../../core/utilities');

  //we check whether all the fields were filled
	//a first check is performed on form but two checks are better than one...
	if (typeof req.body.firstName === 'string' &&
		  typeof req.body.lastName === 'string' &&
      typeof req.body.username === 'string' &&
		  typeof req.body.email === 'string' &&
		  typeof req.body.password === 'string' &&
		  req.body.firstName != '' &&
		  req.body.lastName != '' &&
      req.body.username != '' &&
		  req.body.email != '' &&
		  req.body.password != '' &&
		  utilities.validateEmail(req.body.email)) {

        //we create an object with all the data
        user.local.firstName = req.body.firstName;
        user.local.lastName = req.body.lastName;
        user.local.username = req.body.username;
        user.local.email = req.body.email;
        user.local.password = req.body.password;

        //we check whether this email already exists
    		User.findOne({"local.email": req.body.email }, function(err, existingUser) {

    		    if (existingUser) {
    		      	res.redirect('/signup');
    		    }
    		    else {
    		      	user.save(function(err, admin) {
    		        	   if (err) return next(err);

              				res.redirect('/signin');
    		       });
    		    }
  		});
  }

  //there are errors on the validation
  //issue an error to the user
  else {
    res.status(400).redirect('/signup');
  }
}

module.exports.signup = signup;
module.exports.signupProcess = signupProcess;