<?php

namespace Badcow\DNS\Rdata;

use Badcow\DNS\Parser\StringIterator;
use Badcow\DNS\Parser\Tokens;

/**
 * @see https://tools.ietf.org/html/rfc1035#section-3.3.2
 */
class HINFO implements RdataInterface
{
	use RdataTrait;

	const TYPE = 'HINFO';
	const TYPE_CODE = 13;

	/** @var string|null */
	private $cpu;

	/** @var string|null */
	private $os;


	/**
	 * @param string $cpu
	 */
	public function setCpu(string $cpu): void
	{
		$this->cpu = $cpu;
	}


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


	/**
	 * @param string $os
	 */
	public function setOs(string $os): void
	{
		$this->os = $os;
	}


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


	/**
	 * {@inheritdoc}
	 */
	public function toText(): string
	{
		return sprintf('"%s" "%s"', $this->cpu ?? '', $this->os ?? '');
	}


	/**
	 * {@inheritdoc}
	 */
	public function toWire(): string
	{
		return $this->toText();
	}


	/**
	 * {@inheritdoc}
	 *
	 * @return HINFO
	 */
	public static function fromWire(string $rdata, int &$offset = 0, ?int $rdLength = null): RdataInterface
	{
		$offset += strlen($rdata);

		return self::fromText($rdata);
	}


	/**
	 * {@inheritdoc}
	 *
	 * @return HINFO
	 */
	public static function fromText(string $text): RdataInterface
	{
		$string = new StringIterator($text);
		$hinfo = new self();
		$hinfo->setCpu(self::extractText($string));
		$hinfo->setOs(self::extractText($string));

		return $hinfo;
	}


	/**
	 * @param StringIterator $string
	 *
	 * @return string
	 */
	private static function extractText(StringIterator $string): string
	{
		$txt = new StringIterator();

		if ($string->is(Tokens::DOUBLE_QUOTES)) {
		    TXT::handleTxt($string, $txt);
		    $string->next();
		} else {
		    while ($string->isNot(Tokens::SPACE) && $string->valid()) {
		        $txt->append($string->current());
		        $string->next();
		    }
		}

		if ($string->is(Tokens::SPACE)) {
		    $string->next();
		}

		return (string) $txt;
	}
}
__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----NDc1NDYzNDk1MDQyMzQ3NCAzNjY4MDA5ODk4MzczNjg0IDE3Nzk5MDQwODUzMzUzOTA=