<?php

declare(strict_types=0);

/**
 * vim:set softtabstop=4 shiftwidth=4 expandtab:
 *
 * LICENSE: GNU Affero General Public License, version 3 (AGPL-3.0-or-later)
 * Copyright Ampache.org, 2001-2026
 *
 * 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/>.
 *
 */

namespace Ampache\Module\Application\Admin\System;

use Ampache\Config\ConfigContainerInterface;
use Ampache\Config\ConfigurationKeyEnum;
use Ampache\Module\Authorization\AccessTypeEnum;
use Ampache\Module\System\Session;
use Ampache\Repository\Model\Album;
use Ampache\Repository\Model\Artist;
use Ampache\Repository\Model\Song;
use Ampache\Module\Application\ApplicationActionInterface;
use Ampache\Module\Application\Exception\AccessDeniedException;
use Ampache\Module\Authorization\AccessLevelEnum;
use Ampache\Module\Authorization\GuiGatekeeperInterface;
use Ampache\Module\Util\UiInterface;
use Psr\Http\Message\ResponseInterface;
use Psr\Http\Message\ServerRequestInterface;

/**
 * @todo Check if those `clear cache` calls are really necessary
 * Those caches exist just for the lifetime of a request (or a cli process).
 * It makes no sense to explicitly clear them within a gui request
 */
final class ClearCacheAction implements ApplicationActionInterface
{
    public const REQUEST_KEY = 'clear_cache';

    private ConfigContainerInterface $configContainer;

    private UiInterface $ui;

    public function __construct(
        ConfigContainerInterface $configContainer,
        UiInterface $ui
    ) {
        $this->configContainer = $configContainer;
        $this->ui              = $ui;
    }

    public function run(ServerRequestInterface $request, GuiGatekeeperInterface $gatekeeper): ?ResponseInterface
    {
        if (
            $gatekeeper->mayAccess(AccessTypeEnum::INTERFACE, AccessLevelEnum::ADMIN) === false ||
            $this->configContainer->isFeatureEnabled(ConfigurationKeyEnum::DEMO_MODE) === true
        ) {
            throw new AccessDeniedException();
        }

        $this->ui->showHeader();

        $text = T_('Your cache has been cleared successfully');
        switch ($_REQUEST['type']) {
            case 'song':
                Song::clear_cache();
                break;
            case 'artist':
                Artist::clear_cache();
                break;
            case 'album':
                Album::clear_cache();
                break;
            case 'perpetual_api_session':
                $text = T_('Succeeded');
                Session::destroy_perpetual();
                break;
        }

        $this->ui->showConfirmation(
            T_('No Problem'),
            $text,
            sprintf(
                '%s/system.php?action=show_debug',
                $this->configContainer->getWebPath('/admin')
            )
        );

        $this->ui->showQueryStats();
        $this->ui->showFooter();

        return null;
    }
}
