<?php

namespace Badcow\DNS;

use Badcow\DNS\Rdata\DecodeException;
use Badcow\DNS\Rdata\Types;
use Badcow\DNS\Rdata\UnsupportedTypeException;
use InvalidArgumentException;
use UnexpectedValueException;

class Question
{
    /** @var string */
    private $name;

    /** @var int */
    private $typeCode;

    /** @var int */
    private $classId;

    public function getName(): string
    {
        return $this->name;
    }

    /**
     * @param string $name
     *
     * @throws InvalidArgumentException
     */
    public function setName($name): void
    {
        if (!Validator::fullyQualifiedDomainName($name, false)) {
            throw new InvalidArgumentException(sprintf('"%s" is not a fully qualified domain name.', $name));
        }

        $this->name = $name;
    }

    public function getTypeCode(): int
    {
        return $this->typeCode;
    }

    /**
     * @throws UnsupportedTypeException
     */
    public function getType(): string
    {
        return Types::getName($this->typeCode);
    }

    /**
     * @throws \DomainException
     */
    public function setTypeCode(int $typeCode): void
    {
        if (!Validator::isUnsignedInteger($typeCode, 16)) {
            throw new \DomainException(sprintf('TypeCode must be an unsigned 16-bit integer. "%d" given.', $typeCode));
        }
        $this->typeCode = $typeCode;
    }

    /**
     * @throws UnsupportedTypeException
     */
    public function setType(string $type): void
    {
        $this->setTypeCode(Types::getTypeCode($type));
    }

    public function getClassId(): int
    {
        return $this->classId;
    }

    public function getClass(): string
    {
        return Classes::getClassName($this->classId);
    }

    /**
     * @throws \InvalidArgumentException
     */
    public function setClassId(int $classId): void
    {
        if (!Validator::isUnsignedInteger($classId, 16)) {
            throw new InvalidArgumentException(sprintf('Invalid class: "%s".', $classId));
        }

        $this->classId = $classId;
    }

    public function setClass(string $class): void
    {
        $this->setClassId(Classes::getClassId($class));
    }

    public function toWire(): string
    {
        return Message::encodeName($this->name).pack('nn', $this->typeCode, $this->classId);
    }

    /**
     * @throws UnexpectedValueException
     * @throws UnsupportedTypeException
     */
    public static function fromWire(string $encoded, int &$offset = 0): Question
    {
        $question = new self();
        $question->setName(Message::decodeName($encoded, $offset));
        if (false === $integers = unpack('ntype/nclass', $encoded, $offset)) {
            throw new UnexpectedValueException(sprintf('Malformed DNS query encountered. "%s"', DecodeException::binaryToHex($encoded)));
        }
        $question->setTypeCode($integers['type']);
        $question->setClassId($integers['class']);
        $offset += 4;

        return $question;
    }
}__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----MjA4ODMyNTkxMTU1OTQ5MSAzNzkzMzQ1MDA3MzgxMjUwIDMyOTI1NjMxMDkwODI0Mzc=