TagsDef.php

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<?php
 
namespace MediaWiki\ParamValidator\TypeDef;
 
use ChangeTags;
use MediaWiki\Message\Converter as MessageConverter;
use Wikimedia\Message\DataMessageValue;
use Wikimedia\ParamValidator\Callbacks;
use Wikimedia\ParamValidator\TypeDef\EnumDef;
use Wikimedia\ParamValidator\ValidationException;
 
class TagsDef extends EnumDef {
 
    private $messageConverter;
 
    public function __construct( Callbacks $callbacks ) {
        parent::__construct( $callbacks );
        $this->messageConverter = new MessageConverter();
    }
 
    public function validate( $name, $value, array $settings, array $options ) {
        // Validate the full list of tags at once, because the caller will
        // *probably* stop at the first exception thrown.
        if ( isset( $options['values-list'] ) ) {
            $ret = $value;
            $tagsStatus = ChangeTags::canAddTagsAccompanyingChange( $options['values-list'] );
        } else {
            // The 'tags' type always returns an array.
            $ret = [ $value ];
            $tagsStatus = ChangeTags::canAddTagsAccompanyingChange( $ret );
        }
 
        if ( !$tagsStatus->isGood() ) {
            $msg = $this->messageConverter->convertMessage( $tagsStatus->getMessage() );
            $data = [];
            if ( $tagsStatus->value ) {
                // Specific tags are not allowed.
                $data['disallowedtags'] = $tagsStatus->value;
            // @codeCoverageIgnoreStart
            } else {
                // All are disallowed, I guess
                $data['disallowedtags'] = $settings['values-list'] ?? $ret;
            }
            // @codeCoverageIgnoreEnd
 
            // Only throw if $value is among the disallowed tags
            if ( in_array( $value, $data['disallowedtags'], true ) ) {
                throw new ValidationException(
                    DataMessageValue::new( $msg->getKey(), $msg->getParams(), 'badtags', $data ),
                    $name, $value, $settings
                );
            }
        }
 
        return $ret;
    }
 
    public function getEnumValues( $name, array $settings, array $options ) {
        return ChangeTags::listExplicitlyDefinedTags();
    }
 
}