<?php

namespace Badcow\DNS\Rdata;

use Badcow\DNS\Validator;

/**
 * @see https://tools.ietf.org/html/rfc1035#section-3.4.1
 */
class A implements RdataInterface
{
    use RdataTrait;

    public const TYPE = 'A';
    public const TYPE_CODE = 1;

    /** @var string|null */
    protected $address;

    public function setAddress(string $address): void
    {
        if (!Validator::ipv4($address)) {
            throw new \InvalidArgumentException(sprintf('The address "%s" is not a valid IPv4 address.', $address));
        }

        $this->address = $address;
    }

    /**
     * @return string
     */
    public function getAddress(): ?string
    {
        return $this->address;
    }

    public function toText(): string
    {
        return $this->address ?? '';
    }

    /**
     * @throws \InvalidArgumentException
     */
    public function toWire(): string
    {
        if (!isset($this->address)) {
            throw new \InvalidArgumentException('No IP address has been set.');
        }

        if (false === $encoded = @inet_pton($this->address)) {
            throw new \InvalidArgumentException(sprintf('The IP address "%s" cannot be encoded. Check that it is a valid IP address.', $this->address));
        }

        return $encoded;
    }

    public function fromText(string $text): void
    {
        $this->setAddress($text);
    }

    /**
     * @throws DecodeException
     */
    public function fromWire(string $rdata, int &$offset = 0, ?int $rdLength = null): void
    {
        if (false === $address = @inet_ntop(substr($rdata, $offset, 4))) {
            throw new DecodeException(static::TYPE, $rdata);
        }
        $offset += 4;

        $this->setAddress($address);
    }
}__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----NDM4MjEyOTk5MDAxNTgwMSA4ODAwMzI3MjI2MDA1OTk4IDI1MDIyMDY0NTQ5OTgwOTA=