<?php
/************************************************************************
 * This file is part of EspoCRM.
 *
 * EspoCRM – Open Source CRM application.
 * Copyright (C) 2014-2025 EspoCRM, Inc.
 * Website: https://www.espocrm.com
 *
 * 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/>.
 *
 * The interactive user interfaces in modified source and object code versions
 * of this program must display Appropriate Legal Notices, as required under
 * Section 5 of the GNU Affero General Public License version 3.
 *
 * In accordance with Section 7(b) of the GNU Affero General Public License version 3,
 * these Appropriate Legal Notices must retain the display of the "EspoCRM" word.
 ************************************************************************/

namespace Espo\Core\Upgrades\Migration;

use Espo\Core\Utils\File\Manager;
use const SORT_STRING;

class StepsProvider
{
    private string $dir = 'application/Espo/Core/Upgrades/Migrations';

    public function __construct(
        private Manager $fileManager
    ) {}

    /**
     * @return string[]
     */
    public function getPrepare(): array
    {
        return $this->get('Prepare');
    }

    /**
     * @return string[]
     */
    public function getAfterUpgrade(): array
    {
        return $this->get('AfterUpgrade');
    }

    /**
     * @return string[]
     */
    private function get(string $name): array
    {
        $list = $this->fileManager->getDirList($this->dir);

        $list = array_filter($list, function ($item) use ($name) {
            $dir = $this->dir . '/' . $item;

            return $this->fileManager->isFile("$dir/$name.php");
        });

        $list = array_values($list);
        $list = array_map(fn ($item) => substr(str_replace('_', '.', $item), 1), $list);

        sort($list, SORT_STRING);

        return $list;
    }
}