StaticRangeMapper.php

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<?php
 
declare(strict_types=1);
 
/*
 * This file is part of the TYPO3 CMS project.
 *
 * It is free software; you can redistribute it and/or modify it under
 * the terms of the GNU General Public License, either version 2
 * of the License, or any later version.
 *
 * For the full copyright and license information, please read the
 * LICENSE.txt file that was distributed with this source code.
 *
 * The TYPO3 project - inspiring people to share!
 */
 
namespace ‪TYPO3\CMS\Core\Routing\Aspect;
 
class ‪StaticRangeMapper implements ‪StaticMappableAspectInterface, \Countable
{
    protected ‪$settings;
 
    protected ‪$start;
 
    protected ‪$end;
 
    protected ‪$range;
 
    public function ‪__construct(array ‪$settings)
    {
        ‪$start = ‪$settings['start'] ?? null;
        ‪$end = ‪$settings['end'] ?? null;
 
        if (!is_string(‪$start)) {
            throw new \InvalidArgumentException('start must be string', 1537277163);
        }
        if (!is_string(‪$end)) {
            throw new \InvalidArgumentException('end must be string', 1537277164);
        }
 
        $this->settings = ‪$settings;
        $this->start = ‪$start;
        $this->end = ‪$end;
        $this->range = $this->‪applyNumericPrefix($this->‪buildRange());
    }
 
    public function ‪count(): int
    {
        return ‪count($this->range);
    }
 
    public function ‪generate(string $value): ?string
    {
        return $this->‪respondWhenInRange($value);
    }
 
    public function ‪resolve(string $value): ?string
    {
        return $this->‪respondWhenInRange($value);
    }
 
    protected function ‪respondWhenInRange(string $value): ?string
    {
        if (in_array($value, $this->range, true)) {
            return $value;
        }
        return null;
    }
 
    protected function ‪buildRange(): array
    {
        ‪$range = array_map('strval', range($this->start, $this->end));
        if (‪count(‪$range) > 1000) {
            throw new \LengthException(
                'Range is larger than 1000 items',
                1537696771
            );
        }
        return ‪$range;
    }
 
    protected function ‪applyNumericPrefix(array ‪$range): array
    {
        if (!preg_match('#^\d+$#', $this->start)
            || !preg_match('#^\d+$#', $this->end)
            || $this->start === '0' || $this->end === '0'
            || $this->start[0] !== '0' && $this->end[0] !== '0'
        ) {
            return ‪$range;
        }
 
        $length = strlen(max($this->start, $this->end));
        ‪$range = array_map(
            function ($value) use ($length) {
                return str_pad($value, $length, '0', STR_PAD_LEFT);
            },
            ‪$range
        );
        return ‪$range;
    }
}