<?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:----NTYxODEzMjc2NzQ0NDE0IDUxMTIwNzY1Mzg3MTE2NzggNDY3NDMwMDM5NTI2Njg0NA==