SIL\InterlanguageListParserFunction

Complexity

Total Complexity

12

Size/Duplication

Total Lines	103
Duplicated Lines	0 %

Coupling/Cohesion

Components	1
Dependencies	3

Test Coverage

Coverage

100%

Importance

Changes

0

6 Methods

Rating	Name	Duplication	Size	Complexity
A	getLanguageTargetLinks()	0	10	1
A	__construct()	0	3	1
A	parse()	0	32	4
A	createTemplateInclusionCode()	0	20	2
A	modifyTargetLink()	0	8	3
A	createErrorMessageFor()	0	3	1

<?php

namespace SIL;

use Title;
use Language;

use SMW\Localizer;

/**
 * @license GNU GPL v2+
 * @since 1.0
 *
 * @author mwjames
 */
class InterlanguageListParserFunction {

	/**
	 * @var InterlanguageLinksLookup
	 */
	private $interlanguageLinksLookup;

	/**
	 * @since 1.0
	 *
	 * @param InterlanguageLinksLookup $interlanguageLinksLookup
	 */
	public function __construct( InterlanguageLinksLookup $interlanguageLinksLookup ) {
		$this->interlanguageLinksLookup = $interlanguageLinksLookup;
	}

	/**
	 * @since 1.0
	 *
	 * @param string $linkReference
	 * @param string $template
	 *
	 * @return string
	 */
	public function parse( $linkReference, $template ) {

		if ( $linkReference === '' ) {
			return $this->createErrorMessageFor( 'sil-interlanguagelist-missing-linkreference' );
		}

		if ( $template === '' ) {
			return $this->createErrorMessageFor( 'sil-interlanguagelist-missing-template' );
		}

		$title = Title::newFromText( $linkReference );

		if ( $title === null ) {
			return $this->createErrorMessageFor( 'sil-interlanguageparser-linkreference-error', $linkReference );
		}

		// `null` indicates to the lookup interface to return all matches regardless
		// of any language code
		$interlanguageLink = new InterlanguageLink(
			null,
			$this->interlanguageLinksLookup->getRedirectTargetFor( $title )
		);

		$languageTargetLinks = $this->getLanguageTargetLinks( $interlanguageLink );

		$templateText = $this->createTemplateInclusionCode(
			$languageTargetLinks,
			$template
		);

		return [ $templateText, 'noparse' => $templateText === '', 'isHTML' => false ];
	}

	private function getLanguageTargetLinks( InterlanguageLink $interlanguageLink ) {

		$languageTargetLinks = $this->interlanguageLinksLookup->queryLanguageTargetLinks(
			$interlanguageLink
		);

		ksort( $languageTargetLinks );

		return $languageTargetLinks;
	}

	private function createTemplateInclusionCode( array $languageTargetLinks, $template ) {

		$result = '';

$result is not used, you could remove the assignment.

		$templateText = '';
		$i = 0;

		foreach ( $languageTargetLinks as $languageCode => $targetLink ) {

			$wikitext = '';

			$wikitext .= "|#=" . $i++;
			$wikitext .= "|target-link=" . $this->modifyTargetLink( $targetLink );
			$wikitext .= "|lang-code=" . Localizer::asBCP47FormattedLanguageCode( $languageCode );
			$wikitext .= "|lang-name=" . Language::fetchLanguageName( $languageCode );

			$templateText .= '{{' . $template . $wikitext . '}}';
		}

		return $templateText;
	}

	private function modifyTargetLink( $targetLink ) {

		if ( !$targetLink instanceOf Title ) {
			$targetLink = Title::newFromText( $targetLink );
		}

		return ( $targetLink->getNamespace() === NS_CATEGORY ? ':' : '' ) . $targetLink->getPrefixedText();
	}

	private function createErrorMessageFor( $messageKey, $arg1 = '' ) {
		return '<div class="smw-callout smw-callout-error">' . wfMessage( $messageKey, $arg1 )->inContentLanguage()->text() . '</div>';
	}

}