eliashaeussler/cache-warmup

<?php

declare(strict_types=1);

/*
 * This file is part of the Composer package "eliashaeussler/cache-warmup".
 *
 * Copyright (C) 2020-2024 Elias Häußler <elias@haeussler.dev>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <https://www.gnu.org/licenses/>.
 */

namespace EliasHaeussler\CacheWarmup\Sitemap;

use function strtolower;

/**
 * ChangeFrequency.
 *
 * @author Elias Häußler <elias@haeussler.dev>
 * @license GPL-3.0-or-later
 */
enum ChangeFrequency: string
{
    case Always = 'always';
    case Hourly = 'hourly';
    case Daily = 'daily';
    case Weekly = 'weekly';
    case Monthly = 'monthly';
    case Yearly = 'yearly';
    case Never = 'never';

    /**
     * @pure
     */
    public static function fromCaseInsensitive(string $changeFrequency): self
    {
        /* @phpstan-ignore possiblyImpure.methodCall */
        return self::from(strtolower($changeFrequency));
    }
}