<?php

declare(strict_types=1);

/*
 * This file is developed by evoWeb.
 *
 * It is free software; you can redistribute it and/or modify it under
 * the terms of the GNU General Public License, either version 2
 * of the License, or any later version.
 *
 * For the full copyright and license information, please read the
 * LICENSE.txt file that was distributed with this source code.
 */

namespace Evoweb\EwBloggy\DataProcessing;

use Evoweb\EwBloggy\Domain\Repository\PostRepository;
use TYPO3\CMS\Frontend\ContentObject\ContentObjectRenderer;
use TYPO3\CMS\Frontend\ContentObject\DataProcessorInterface;

/**
 * Fetch blog records from the database, using the default .select syntax from TypoScript.
 *
 * This way, e.g. a FLUIDTEMPLATE cObject can iterate over the array of records.
 *
 * Example TypoScript configuration:
 *
 * 10 = Evoweb\EwBloggy\DataProcessing\BlogPostProcessor
 * 10 {
 *   as = post
 * }
 *
 * 10 = blog-post
 *
 * where "as" means the variable to be containing the result-set from the DB query.
 */
readonly class BlogPostProcessor implements DataProcessorInterface
{
    public function __construct(
        protected PostRepository $postRepository,
    ) {
    }

    public function process(
        ContentObjectRenderer $cObj,
        array $contentObjectConfiguration,
        array $processorConfiguration,
        array $processedData
    ): array {
        if (!$cObj->checkIf($processorConfiguration['if.'] ?? [])) {
            return $processedData;
        }

        $targetVariableName = $cObj->stdWrapValue('as', $processorConfiguration, 'post');

        $processedData[$targetVariableName] = $this->postRepository->findByUid((int)$processedData['data']['uid']);

        return $processedData;
    }
}