smartemailing/types

<?php

declare(strict_types = 1);

namespace SmartEmailing\Types;

use Nette\Utils\Strings;
use SmartEmailing\Types\Comparable\ComparableInterface;
use SmartEmailing\Types\Comparable\StringComparableTrait;
use SmartEmailing\Types\ExtractableTraits\StringExtractableTrait;

final class IpAddress implements ToStringInterface, ComparableInterface
{

    use StringExtractableTrait;
    use ToStringTrait;
    use StringComparableTrait;

    private string $value;

    private int $version;

    private function __construct(
        string $value
    ) {
        $this->initialize($value);
    }

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

    public function getVersion(): int
    {
        return $this->version;
    }

    private function isValidIpV4(
        string $value
    ): bool {
        return (bool) \preg_match(
            '~^((25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$~',
            $value
        );
    }

    private function isValidIpV6(
        string $value
    ): bool {
        return (bool) \preg_match(
            '~^(((?=(?>.*?(::))(?!.+\3)))\3?|([\dA-F]{1,4}(\3|:(?!$)|$)|\2))(?4){5}((?4){2}|((2[0-4]|1\d|[1-9])?\d|25[0-5])(\.(?7)){3})\z~i',
            $value
        );
    }

    private function initialize(
        string $value
    ): bool {
        $value = Strings::trim($value);
        $value = Strings::lower($value);
        $value = \strtr(
            $value,
            [
                '[' => '',
                ']' => '',
            ]
        );

        if ($this->isValidIpV4($value)) {
            $this->value = $value;
            $this->version = 4;

            return true;
        }

        if ($this->isValidIpV6($value)) {
            $this->value = $value;
            $this->version = 6;

            return true;
        }

        throw new InvalidTypeException('Invalid IP address: ' . $value);
    }

}