<?php
class User_auth extends CI_Model {

    public $user_id;
    public $username;
    public $logged_in;

    public function __construct(){

        parent::__construct();

    }
    public function login($username,$password){

       $password = md5($password);
       $query =$this->db->query("SELECT * FROM users WHERE username='".$username."' AND password='".$password."'");
       if($query->num_rows() == 1){

            $row = $query->row_array();
            $session_data = array(

                    'user_id' => $row['id'],
                    'username' => $row['username'],
                    'logged_in' => true
            );
            $this->session->set_userdata($session_data);

            $this->user_id = $this->session->userdata('user_id');

            $this->username = $this->session->userdata('username');

            $this->logged_in = $this->session->userdata('logged_in');

            return true;
       }
       else {
            return false;
       }
    }
    public function logout(){

        return $this->session->sess_destroy();
    }
    public function register(){

    }
    public function is_logged_in(){

        if($this->session->userdata('logged_in') == true){

            return true;

        }
        else {

            return false;
        }
    }
    public function is_admin(){

        $query = $this->db->query("SELECT * FROM users WHERE username='".$this->username."'");

        $row = $query->row_array();

        if($row['isadmin'] == 1){

            return true;
        }
        else { return false; }

    }
}