<?php
/*
 * This file is part of Part-DB (https://github.com/Part-DB/Part-DB-symfony).
 *
 *  Copyright (C) 2019 - 2023 Jan Böhmer (https://github.com/jbtronics)
 *
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU Affero General Public License as published
 *  by the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU Affero General Public License for more details.
 *
 *  You should have received a copy of the GNU Affero General Public License
 *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */

declare(strict_types=1);


namespace App\EventSubscriber;

use App\Entity\UserSystem\User;
use App\Events\SecurityEvent;
use App\Events\SecurityEvents;
use Symfony\Component\EventDispatcher\EventSubscriberInterface;
use Symfony\Component\Security\Core\Authentication\Token\SwitchUserToken;
use Symfony\Component\Security\Http\Event\SwitchUserEvent;
use Symfony\Contracts\EventDispatcher\EventDispatcherInterface;

class SwitchUserEventSubscriber implements EventSubscriberInterface
{

    public function __construct(private readonly EventDispatcherInterface $eventDispatcher)
    {
    }

    public static function getSubscribedEvents()
    {
        return [
            'security.switch_user' => 'onSwitchUser',
        ];
    }

    public function onSwitchUser(SwitchUserEvent $event): void
    {
        $target_user = $event->getTargetUser();
        // We can only handle User objects
        if (!$target_user instanceof User) {
            return;
        }

        //We are only interested in impersonation (not unimpersonation)
        if (!$event->getToken() instanceof SwitchUserToken) {
            return;
        }

        $security_event = new SecurityEvent($target_user);
        $this->eventDispatcher->dispatch($security_event, SecurityEvents::USER_IMPERSONATED);
    }
}