<?php

namespace Badcow\DNS;

use Badcow\DNS\Parser\Tokens;
use Badcow\DNS\Rdata\APL;
use Badcow\DNS\Rdata\LOC;
use Badcow\DNS\Rdata\RRSIG;
use Badcow\DNS\Rdata\SOA;
use Badcow\DNS\Rdata\TXT;

class AlignedRdataFormatters
{
	public static $rdataFormatters = [
	    SOA::TYPE => __CLASS__.'::SOA',
	    APL::TYPE => __CLASS__.'::APL',
	    LOC::TYPE => __CLASS__.'::LOC',
	    RRSIG::TYPE => __CLASS__.'::RRSIG',
	    TXT::TYPE => __CLASS__.'::TXT',
	];


	/**
	 * @return callable[]
	 */
	public static function getRdataFormatters(): array
	{
		return [
		    SOA::TYPE => __CLASS__.'::SOA',
		    APL::TYPE => __CLASS__.'::APL',
		    LOC::TYPE => __CLASS__.'::LOC',
		    RRSIG::TYPE => __CLASS__.'::RRSIG',
		    TXT::TYPE => __CLASS__.'::TXT',
		];
	}


	/**
	 * @param SOA $rdata
	 * @param int $padding
	 *
	 * @return string
	 */
	public static function SOA(SOA $rdata, int $padding): string
	{
		$vars = [
		    $rdata->getMname(),
		    $rdata->getRname(),
		    $rdata->getSerial(),
		    $rdata->getRefresh(),
		    $rdata->getRetry(),
		    $rdata->getExpire(),
		    $rdata->getMinimum(),
		];

		$longestVarLength = max(array_map('strlen', $vars));

		return Tokens::OPEN_BRACKET.Tokens::LINE_FEED.
		    self::makeLine((string) $rdata->getMname(), 'MNAME', $longestVarLength, $padding).
		    self::makeLine((string) $rdata->getRname(), 'RNAME', $longestVarLength, $padding).
		    self::makeLine((string) $rdata->getSerial(), 'SERIAL', $longestVarLength, $padding).
		    self::makeLine((string) $rdata->getRefresh(), 'REFRESH', $longestVarLength, $padding).
		    self::makeLine((string) $rdata->getRetry(), 'RETRY', $longestVarLength, $padding).
		    self::makeLine((string) $rdata->getExpire(), 'EXPIRE', $longestVarLength, $padding).
		    self::makeLine((string) $rdata->getMinimum(), 'MINIMUM', $longestVarLength, $padding).
		    str_repeat(' ', $padding).Tokens::CLOSE_BRACKET;
	}


	/**
	 * @param APL $rdata
	 * @param int $padding
	 *
	 * @return string
	 */
	public static function APL(APL $rdata, int $padding): string
	{
		$blocks = explode(' ', $rdata->toText());
		$longestVarLength = max(array_map('strlen', $blocks));
		$string = Tokens::OPEN_BRACKET.Tokens::LINE_FEED;

		foreach ($blocks as $block) {
		    $string .= self::makeLine($block, null, $longestVarLength, $padding);
		}

		return $string.str_repeat(' ', $padding).Tokens::CLOSE_BRACKET;
	}


	/**
	 * Split the TXT string into 40 character lines if the string is larger than 50 characters.
	 *
	 * @param TXT $txt
	 * @param int $padding
	 *
	 * @return string
	 */
	public static function TXT(TXT $txt, int $padding): string
	{
		if (null === $txt->getText() || strlen($txt->getText()) <= 50) {
		    return $txt->toText();
		}

		$lines = str_split($txt->getText(), 40);
		$padString = str_repeat(Tokens::SPACE, $padding);

		$rdata = Tokens::OPEN_BRACKET.Tokens::SPACE;
		foreach ($lines as $line) {
		    $rdata .= Tokens::LINE_FEED.$padString.Tokens::SPACE.Tokens::SPACE.
		        Tokens::DOUBLE_QUOTES.$line.Tokens::DOUBLE_QUOTES;
		}
		$rdata .= Tokens::LINE_FEED.$padString.Tokens::CLOSE_BRACKET;

		return $rdata;
	}


	/**
	 * Splits the RRSIG Signature into 32 character chunks.
	 *
	 * @param RRSIG $rrsig
	 * @param int   $padding
	 *
	 * @return string
	 */
	public static function RRSIG(RRSIG $rrsig, int $padding): string
	{
		$strPadding = str_repeat(Tokens::SPACE, $padding);
		$signatureParts = str_split($rrsig->getSignature(), 32);

		$rdata = $rrsig->getTypeCovered().Tokens::SPACE.
		    $rrsig->getAlgorithm().Tokens::SPACE.
		    $rrsig->getLabels().Tokens::SPACE.
		    $rrsig->getOriginalTtl().Tokens::SPACE.Tokens::OPEN_BRACKET.Tokens::LINE_FEED.
		    $strPadding.
		    $rrsig->getSignatureExpiration()->format(RRSIG::TIME_FORMAT).Tokens::SPACE.
		    $rrsig->getSignatureInception()->format(RRSIG::TIME_FORMAT).Tokens::SPACE.
		    $rrsig->getKeyTag().Tokens::SPACE.
		    $rrsig->getSignersName();

		foreach ($signatureParts as $line) {
		    $rdata .= Tokens::LINE_FEED.$strPadding.$line;
		}

		$rdata .= Tokens::SPACE.Tokens::CLOSE_BRACKET;

		return $rdata;
	}


	/**
	 * @param LOC $loc
	 * @param int $padding
	 *
	 * @return string
	 */
	public static function LOC(LOC $loc, int $padding): string
	{
		$parts = [
		    'LATITUDE' => (string) $loc->getLatitude(LOC::FORMAT_DMS),
		    'LONGITUDE' => (string) $loc->getLongitude(LOC::FORMAT_DMS),
		    'ALTITUDE' => sprintf('%.2fm', $loc->getAltitude()),
		    'SIZE' => sprintf('%.2fm', $loc->getSize()),
		    'HORIZONTAL PRECISION' => sprintf('%.2fm', $loc->getHorizontalPrecision()),
		    'VERTICAL PRECISION' => sprintf('%.2fm', $loc->getVerticalPrecision()),
		];

		$longestVarLength = max(array_map('strlen', $parts));
		$rdata = Tokens::OPEN_BRACKET.Tokens::LINE_FEED;

		foreach ($parts as $comment => $text) {
		    $rdata .= self::makeLine($text, $comment, $longestVarLength, $padding);
		}
		$rdata .= str_repeat(Tokens::SPACE, $padding).Tokens::CLOSE_BRACKET;

		return $rdata;
	}


	/**
	 * Returns a padded line with comment.
	 *
	 * @param string $text
	 * @param string $comment
	 * @param int    $longestVarLength
	 * @param int    $padding
	 *
	 * @return string
	 */
	public static function makeLine(string $text, ?string $comment, int $longestVarLength, int $padding): string
	{
		$output = str_repeat(Tokens::SPACE, $padding).str_pad($text, $longestVarLength);

		if (null !== $comment) {
		    $output .= Tokens::SPACE.Tokens::SEMICOLON.Tokens::SPACE.$comment;
		}

		return $output.Tokens::LINE_FEED;
	}
}
__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----ODk2MTk1MDUzMTI3OTU5NSA2ODk5NTcxMzg2NDc2NzE4IDgxOTMzNDM3ODU1NTIzMDI=