<?php

namespace EP\EpTheme\DataProcessing;

/***************************************************************
 *
 *  Copyright notice
 *
 *  (c) 2016 Björn Fromme <fromme@dreipunktnull.com>, dreipunktnull
 *
 *  All rights reserved
 *
 *  This script is part of the TYPO3 project. The TYPO3 project is
 *  free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  The GNU General Public License can be found at
 *  http://www.gnu.org/copyleft/gpl.html.
 *
 *  This script is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  This copyright notice MUST APPEAR in all copies of the script!
 ***************************************************************/

use TYPO3\CMS\Core\Utility\GeneralUtility;
use TYPO3\CMS\Frontend\ContentObject\ContentObjectRenderer;
use TYPO3\CMS\Frontend\ContentObject\DataProcessorInterface;
use TYPO3\CMS\Frontend\Resource\FileCollector;

class TeaserImageProcessor implements DataProcessorInterface
{

    /**
     * @param ContentObjectRenderer $cObj
     * @param array $contentObjectConfiguration
     * @param array $processorConfiguration
     * @param array $processedData
     *
     * @return array
     */
    public function process(
        ContentObjectRenderer $cObj,
        array $contentObjectConfiguration,
        array $processorConfiguration,
        array $processedData
    ) {
        $imageFileCollector = GeneralUtility::makeInstance(FileCollector::class);
        $imageFileCollector->addFilesFromRelation('tt_content', 'assets', $cObj->data);
        $processedData['teaserImage'] = reset($imageFileCollector->getFiles());

        return $processedData;
    }

}