<?php

class Login extends Controller {

    function Login()
    {
        parent::Controller();
        $this->load->model('users');
    }

    function index()
    {
        $this->load->view('login');
    }

    function register()
    {
        if(isset($_POST['username'])){

            // User has tried registering, insert them into database.

            $username = $_POST['username'];
            $password = $_POST['password'];

            $this->users->register($username, $password);

            redirect('login');

        }
        else{
            //User has not tried registering, bring up registration information.
            $this->load->view('register');
        }
    }

    function go()
    {

        $username = $_POST['username'];
        $password = $_POST['password'];

        //Returns userid is successful, false is unsuccessful
        $results = $this->users->login($username,$password);

        if ($results==false) redirect('login');
        else
        {
            $this->session->set_userdata(array('userid'=>$results));
            redirect('profile');
        }

    }

    function logout()
    {
        $this->session->set_userdata(array('userid'=>''));
        redirect('login');
    }

}