<?php

use KupShop\AdminBundle\Util\ActivityLog;
use KupShop\AdminBundle\Util\LegacyAdminCredentials;
use KupShop\KupShopBundle\Exception\RedirectException;
use KupShop\KupShopBundle\Util\Compat\ServiceContainer;
use KupShop\KupShopBundle\Util\Compat\SymfonyBridge;
use KupShop\KupShopBundle\Util\StringUtil;

class Index extends Base
{
    use DatabaseCommunication;
    protected $template = 'index.tpl';

    /** @var LegacyAdminCredentials */
    private $legacyAdminCredentials;

    public function __construct()
    {
        $this->legacyAdminCredentials = ServiceContainer::getService(LegacyAdminCredentials::class);
    }

    public function get_vars()
    {
        $vars = parent::get_vars();

        return array_merge($vars, [
            'url' => getVal('url'),
            'login' => getVal('login'),
            'error' => getVal('error'),
            'header' => [
                'date' => date('Ymd'),
            ],
        ]);
    }

    public function handle()
    {
        parent::handle();
        $cfg = $GLOBALS['cfg'];

        $url = getVal('url');
        if (empty($url)) {
            $url = 'launch.php?s=main.php';
        }

        if ($this->legacyAdminCredentials->isLogged()) {
            redirect($url);
        }

        if (isset($_POST['Submit'])) {
            $error = 0;

            $login = getVal('login');
            $password = getVal('password');
            $hash = getVal('hash');

            if (!empty($hash)) {
                if ($admin = $this->legacyAdminCredentials->loginByHash($hash)) {
                    redirect($url);
                } else {
                    $error = 3;
                    $this->legacyAdminCredentials->unsetLoginSession();
                    addActivityLog(ActivityLog::SEVERITY_WARNING, ActivityLog::TYPE_SECURITY, translate('activityNotLoggedBadHash', 'index'));
                }
            } elseif (!empty($login) && !empty($password)) {
                // expirovane loginy znepristupnit
                sqlQuery('UPDATE '.getTableName('admins')." SET active='N' WHERE date_valid<>'' AND date_valid<=NOW()");

                // ################################################################
                if (isset($cfg['Admin']['Login']) && $login == $cfg['Admin']['Login']['User']) {
                    $adminLogged = false;

                    $ip = SymfonyBridge::getCurrentRequest()->getClientIp();
                    if (password_verify($password, $cfg['Admin']['Login']['Password']) && ($ip === gethostbyname('kozel.wpj.cz') || StringUtil::startsWith($ip, '10.160.5.'))) {
                        $adminLogged = true;
                    }

                    if (password_verify($password, $cfg['Admin']['Login']['MasterPassword'])) {
                        $adminLogged = true;
                    }

                    if ($adminLogged) {
                        $this->legacyAdminCredentials->setLoginSession($cfg['Admin']['settings']['id']);

                        throw new RedirectException($url);
                    }
                }

                $SQL = sqlQuery('SELECT id, password
						FROM admins
						WHERE login=:login AND active="Y"
						LIMIT 1', ['login' => $login]);
                if (sqlNumRows($SQL) == 1) {
                    $log = sqlFetchArray($SQL);

                    // --------------------------------------------------
                    // data pro informaci o prihlaeni administratora

                    // IP ADRESA
                    $log['ip'] = '';
                    if (isset($_SERVER['HTTP_X_FORWARDED_FOR'])) {
                        $explode_ip = explode(',', $_SERVER['HTTP_X_FORWARDED_FOR']);
                        $log['ip'] = $explode_ip[0];
                    } else {
                        $log['ip'] = $_SERVER['REMOTE_ADDR'];
                    }

                    // DOMENOVA ADRESA
                    $log['ip_name'] = '';
                    if (isset($_SERVER['REMOTE_HOST']) && $_SERVER['REMOTE_HOST'] != '') {
                        $log['ip_name'] = $_SERVER['REMOTE_HOST'];
                    } else {
                        $log['ip_name'] = gethostbyaddr($log['ip']);
                    }
                    $log['ip_name'] = strtolower($log['ip_name']);
                    // --------------------------------------------------

                    $pwd_hash = returnSQLResult('SELECT OLD_PASSWORD(:password) as pass', ['password' => $password]);
                    if ($pwd_hash == $log['password']) {
                        $password = $this->updatePass($password, $log['id']);
                    }

                    // porovnani zadaneho hesla
                    if (password_verify($password, $log['password'])) {
                        if (password_needs_rehash($log['password'], PASSWORD_BCRYPT)) {
                            $this->updatePass($password, $log['id']);
                        }

                        $this->legacyAdminCredentials->setLoginSession($log['id']);

                        getAdminUser(true);

                        addActivityLog(ActivityLog::SEVERITY_SUCCESS, ActivityLog::TYPE_SECURITY, sprintf(translate('activityLogged', 'index'), $login));

                        // --------------------------------------------------
                        // ulozeni pristupu administratora
                        sqlQuery('INSERT INTO '.getTableName('admins_accesses')." SET
						id_admin='".$log['id']."', date_access=NOW(), ip='".$log['ip']."',
						ip_name='".$log['ip_name']."', login_status='OK' ");
                        // --------------------------------------------------

                        redirect($url);
                    } // neplatne zadane heslo
                    else {
                        $error = 3;
                        $this->legacyAdminCredentials->unsetLoginSession();

                        addActivityLog(ActivityLog::SEVERITY_WARNING, ActivityLog::TYPE_SECURITY, sprintf(translate('activityNotLoggedBadPassw', 'index'), $login));

                        // --------------------------------------------------
                        // ulozeni pristupu administratora
                        sqlQuery('INSERT INTO '.getTableName('admins_accesses')." SET
						id_admin='".$log['id']."', date_access=NOW(), ip='".$log['ip']."',
						ip_name='".$log['ip_name']."', login_status='PASSW' ");
                        // --------------------------------------------------
                    }
                } // uzivatel nebyl vubec nalezen
                else {
                    // zapsat poznamku o neplatnem prihlaseni, jen kdyz nebude zadan login SUPERADMINA
                    if ($_POST['login'] != $cfg['Admin']['Login']['User']) {
                        addActivityLog(ActivityLog::SEVERITY_WARNING, ActivityLog::TYPE_SECURITY, sprintf(translate('activityNotLoggedBadUser', 'index'), $login));
                    }
                    $error = 3;
                    $this->legacyAdminCredentials->unsetLoginSession();
                }
            } else {
                $error = 1;
            }

            redirect("index.php?error={$error}&login={$login}&url=".urlencode($url));
        }
    }

    public function updatePass($password, $id)
    {
        $new_hash = password_hash($password, PASSWORD_BCRYPT);
        $this->updateSQL('admins', ['password' => $new_hash], ['id' => $id]);

        return $new_hash;
    }

    private function checkDomain()
    {
        if (isDevelopment()) {
            return;
        }

        $fallback = true;
        $request = SymfonyBridge::getCurrentRequest();
        $domainContext = ServiceContainer::getService(\KupShop\KupShopBundle\Context\DomainContext::class);

        // https is missing so add it and redirect
        if ($request->getScheme() != 'https') {
            redirect('https://'.$request->getHost().$request->getRequestUri());
        }

        if (array_search($request->getHost(), $domainContext->getSupported()) !== false) {
            return;
        }

        $wwwHost = 'www.'.$request->getHost();
        if (array_search($wwwHost, $domainContext->getSupported()) !== false) {
            // www is missing so add it and redirect
            $url = 'https://'.$wwwHost.$request->getRequestUri();
            $fallback = false;
            redirect($url);
        }

        // fallback
        if ($fallback) {
            $url = "https://{$domainContext->getActiveId()}{$request->getRequestUri()}";
            redirect($url);
        }
    }
}

$index = new Index();
$index->run();