<?php

class UserToken extends mfBaseController
{

    public function checkToken()
    {
        if (isset($_COOKIE[MFAPPNAME . '_remembertoken'])) {
            $cookie = explode(':', $_COOKIE[MFAPPNAME . '_remembertoken']);
            if (count($cookie) === 2) {
                $db = new FronkDB();
                $selector = $cookie[0];
                $token = $cookie[1];
                $selector = $db->escape($selector);
                $now = time();
                $res = $db->select(MFUSERTOKENTABLE, "worker_id,token", "selector='$selector' AND token_expire > '$now'");
                if ($db->num_rows($res)) {
                    $Token = $db->fetch_object($res);
                    if ($Token->token == $token) {
                        $res = $db->select(MFUSERTABLE, "username", "id='$Token->worker_id'");
                        if ($db->num_rows($res)) {
                            $User = $db->fetch_object($res);
                            if (!isset($_SESSION[MFAPPNAME . '_username'])) {
                                $refresh = true;
                            }
                            $_SESSION[MFAPPNAME . '_username'] = $User->username;
                            $_SESSION[MFAPPNAME . '_ip'] = $_SERVER['REMOTE_ADDR'];;
                            $db->update(MFUSERTABLE, array('ip' => $_SERVER['REMOTE_ADDR'], 'sessionid' => session_id()), "id='$Token->worker_id'");
                            if ($refresh) {
                                header("Refresh:0");
                            }
                        }
                    }
                }
            }
        }
    }

    public function generateToken($userId)
    {
        $db = new FronkDB();
        $tokenExpireTime = time() + 2592000;
        $selector = bin2hex(random_bytes(16));
        $token = bin2hex(random_bytes(32));
        $values['worker_id'] = $userId;
        $values['selector'] = $selector;
        $values['token'] = $token;
        $values['token_expire'] = $tokenExpireTime;
        $values['create_by'] = $userId;
        $values['create'] = date('U');
        $db->insert("WorkerToken", $values);
        setcookie(MFAPPNAME . '_remembertoken', $selector . ':' . $token, $tokenExpireTime, "/");
    }

    public function deleteToken()
    {
        $db = new FronkDB();
        $cookie = explode(':', $_COOKIE[MFAPPNAME . '_remembertoken']);
        $selector = $cookie[0];
        if (count($cookie) === 2) {

            $db->delete("WorkerToken", "selector='" . $selector . "'", 1);
        }
        setcookie(MFAPPNAME . '_remembertoken', '', time() - 3600, '/');

    }

}