.-.-.-.-.-

<?php

namespace craft\log;

use Illuminate\Support\Collection;
use Monolog\Processor\ProcessorInterface;

/**
 * Class MessageProcessor
 *
 * @author Pixel & Tonic, Inc. <support@pixelandtonic.com>
 * @since 4.0.0
 */
class MessageProcessor implements ProcessorInterface
{
    public const DEFAULT_CATEGORY = 'application';

/**
     * @inheritdoc
     */
    public function __invoke(array $record): array
    {
        $record = Collection::make($record);
        $record = $this->_extractCategory($record);
        $record = $this->_filterEmptyContext($record, 'trace');

return $record->all();
    }

private function _extractCategory(Collection $record): Collection
    {
        $category = $record->pull('context.category');
        $extra = Collection::make($record->get('extra'));
        $extra->put('yii_category', $category ?? self::DEFAULT_CATEGORY);
        $record->put('extra', $extra->all());

return $record;
    }

private function _filterEmptyContext(Collection $record, string $key = null): Collection
    {
        $context = Collection::make($record->get('context'))
            ->reject(fn($v, $k) => ($key === null || $k === $key) && empty($v));

$record->put('context', $context->all());

return $record;
    }
}

/srv/users/craft4/apps/craft4-newsite-space/./vendor/./craftcms/cms/src/log/MessageProcessor.php