ldc-mesbr-app/src/Domain/Models/ValueObjects/Brand/BrandCode.php

<?php

declare(strict_types=1);

namespace Domain\Models\ValueObjects\Brand;

final readonly class BrandCode
{
    private const string REGEX = '/^[A-Z]{3}\d{2}$/';

    /**
     * @param string $value Unique identification code.
     */
    public function __construct(
        public string $value,
    ) {
        if (! preg_match(self::REGEX, $value)) {
            throw new \DomainException(
                "Invalid code '{$value}' does not match pattern " . self::REGEX,
            );
        }

        if ($value[3] === $value[4]) {
            throw new \DomainException(
                "Invalid code '{$value}' has the same digit repeated",
            );
        }
    }
}