/*
@param username
@param pass
@param permanent

return:
    true
    r0 = incorrect data
    r1 = email not confirm
*/

class Login {
    public function __construct($username, $pass, $permament) {
        $this->username = $username;
        $this->pass = $pass;
        $this->permament = $permament;
    }

    public function correctData() {
        // INPUT DATA
        $args = array(
            'username' => $this->username
        );

        // IF EXIST THIS USERNAME
        $result = dibi::query("SELECT rand FROM users WHERE %and", $args);
        if (count($result) > 0) {
            $rand = $result->fetchSingle();
            $args['pass'] = hash_hmac("sha256", $this->pass, $rand);

            // IF IS CORRECT PASSWORD
            $result = dibi::query("SELECT id, rank, confirm FROM users WHERE %and", $args);
            if (count($result) == 0) return 'r0';
            else {
                $data = $result->fetch();

                // IF IS ACCOUNT CONFIRM
                if ($data['confirm'] == '0') return 'r1';
                else {
                    // COOKIES
                    session_start();
                    $_SESSION['username'] = $this->username;
                    $_SESSION['id'] = $data['id'];
                    $_SESSION['rank'] = $data['rank'];

                    // PERMAMENT
                    if ($this->permament === true) {
                        $token = md5(uniqid(mt_rand(), true));
                        setcookie("login", $_SESSION['id'] . ":" . $token, strtotime("+1 month"), "/");
                        $arr = array(
                            'user_id'   => $_SESSION['id'],
                            'token'     => $token
                        );
                        dibi::query('INSERT INTO users_permanent', $arr);
                    }

                    // INSERT VISITOR DATA
                    $browser = get_browser(null, true);
                    $arr = array(
                        'user_id'   => $_SESSION['id'],
                        'ip'        => $_SERVER['SERVER_ADDR'],
                        'browser'   => $browser['browser'],
                        'os'        => $browser['platform']
                    );
                    dibi::query('INSERT INTO users_log', $arr);
                    return true;
                }
            }
        }
        else return 'r0';
    }
}