<?php

declare(strict_types=1);

namespace Domain\Models\ValueObjects;

use Shared\DDD\Equatable;

final readonly class Code implements \Stringable, Equatable
{
    public const int LENGTH = 7;

    public const string ALLOWED_CHARACTERS = 'ABCDEFGHJKMNPQRSTUWXYZabcdefghjkmnpqrstuwxyz123456789';

    public function __construct(
        public string $value
    ) {
        if (trim($value) === '') {
            throw new \DomainException('Code cannot be empty');
        }
        $length = strlen($value);
        if ($length < 6 || $length > 10) {
            throw new \DomainException('Code has to be between 6 and 10 chars length');
        }
        if (! preg_match('/^[' . self::ALLOWED_CHARACTERS . ']+$/', $value)) {
            throw new \DomainException('Code contains invalid characters');
        }
    }

    public function __toString(): string
    {
        return $this->value;
    }

    public function equals(mixed $other): bool
    {
        return $other instanceof self && $this->value === $other->value;
    }
}