app/Shared/Validation/OwnershipValidator.php

<?php

namespace App\Shared\Validation;

use App\Shared\Exceptions\ApiException;

class OwnershipValidator
{
    public function ensureOwner(?string $actualOwnerId, string $expectedOwnerId, string $message = 'The record is not available.'): void
    {
        if ($actualOwnerId === null || $actualOwnerId !== $expectedOwnerId) {
            throw new ApiException('RESOURCE_NOT_FOUND', $message, [], 404);
        }
    }
}