ldc-boutique-cnc-sable/domain/Models/ValueObjects/Slug.php

<?php

declare(strict_types=1);

namespace Domain\Models\ValueObjects;

use Shared\Helpers\StringHelper;
use Webmozart\Assert\Assert;

final readonly class Slug implements \Stringable
{
    public function __construct(public string $value)
    {
        Assert::stringNotEmpty(trim($value), 'Slug cannot be empty.');
        Assert::maxLength($value, 255, 'Slug cannot exceed 255 characters.');
        Assert::regex($value, '/^[a-z0-9]+(?:-[a-z0-9]+)*$/', 'Slug format is invalid.');
    }

    public static function fromString(string $string): self
    {
        $cleanString = StringHelper::transliterate($string);

        $slug = strtolower(trim($cleanString));
        $slug = preg_replace('/[^a-z0-9]+/i', '-', $slug) ?? '';
        $slug = trim($slug, '-');
        $slug = preg_replace('/-+/', '-', $slug) ?? '';

        Assert::stringNotEmpty($slug, 'Cannot generate a valid slug from given string.');

        return new self($slug);
    }

    #[\Override]
    public function __toString(): string
    {
        return $this->value;
    }
}