wikimedia/mediawiki-extensions-CirrusSearch

<?php

namespace CirrusSearch;

use CirrusSearch\Profile\SearchProfileServiceFactoryFactory;
use InvalidArgumentException;
use MediaWiki\Config\Config;
use MediaWiki\Config\GlobalVarConfig;
use MediaWiki\Config\HashConfig;
use MediaWiki\Config\MultiConfig;

/**
 * SearchConfig implemenation backed by a simple HashConfig
 */
class HashSearchConfig extends SearchConfig {
    public const FLAG_INHERIT = 'inherit';

    /** @var bool */
    private $localWiki = false;

    /**
     * @param array $settings config vars
     * @param string[] $flags customization flags:
     * - inherit: config vars not part the settings provided are fetched from GlobalVarConfig
     * @param Config|null $inherited (only useful when the inherit flag is set)
     * @param SearchProfileServiceFactoryFactory|null $searchProfileServiceFactoryFactory
     */
    public function __construct(
        array $settings,
        array $flags = [],
        Config $inherited = null,
        SearchProfileServiceFactoryFactory $searchProfileServiceFactoryFactory = null
    ) {
        parent::__construct( $searchProfileServiceFactoryFactory );
        $config = new HashConfig( $settings );
        $extra = array_diff( $flags, [ self::FLAG_INHERIT ] );
        if ( $extra ) {
            throw new InvalidArgumentException( "Unknown config flags: " . implode( ',', $extra ) );
        }

        if ( in_array( self::FLAG_INHERIT, $flags ) ) {
            $config = new MultiConfig( [ $config, $inherited ?? new GlobalVarConfig ] );
            $this->localWiki = !isset( $settings['_wikiID' ] );
        }
        $this->setSource( $config );
    }

    /**
     * Allow overriding Wiki ID
     * @return mixed|string
     */
    public function getWikiId() {
        if ( $this->has( '_wikiID' ) ) {
            return $this->get( '_wikiID' );
        }
        return parent::getWikiId();
    }

    public function getHostWikiConfig(): SearchConfig {
        if ( $this->localWiki ) {
            return $this;
        }
        return parent::getHostWikiConfig();
    }

    public function isLocalWiki() {
        return $this->localWiki;
    }
}