<?php

namespace SGalinski\SgNews\Service;

/***************************************************************
 *  Copyright notice
 *
 *  (c) sgalinski Internet Services (https://www.sgalinski.de)
 *
 *  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\Charset\CharsetConverter;
use TYPO3\CMS\Core\Core\Environment;
use TYPO3\CMS\Core\SingletonInterface;
use TYPO3\CMS\Core\Utility\GeneralUtility;
use TYPO3\CMS\Extbase\Domain\Model\FileReference;

/**
 * Service for the media stuff from the domain model News.
 */
class ImageService implements SingletonInterface {
	/**
	 * @var CharsetConverter
	 */
	protected $characterSetConverter;

	/**
	 * Crops the first media file from the given News and returns the cropped image.
	 *
	 * Expected coordinates array structure:
	 * array (
	 *        'x1' => string,
	 *        'y1' => string,
	 *        'w' => string,
	 *        'h' => string,
	 * )
	 *
	 * @param FileReference $image
	 * @param array $coordinates
	 * @param string $path
	 * @param string $prefix
	 * @return string
	 * @throws \RuntimeException
	 * @throws \InvalidArgumentException
	 */
	public function cropFirstMediaImage(
		FileReference $image, array $coordinates, $path = 'typo3temp/sg_news/', $prefix = ''
	): string {
		$originalResource = $image->getOriginalResource();
		$extension = strtolower($originalResource->getExtension());
		if (!in_array($extension, ['gif', 'png', 'jpg', 'jpeg', 'svg', 'webp'], TRUE)) {
			return '';
		}

		if ($prefix !== '') {
			$prefix = str_replace(['?', '&', ' '], '_', $prefix);
			$prefix = $this->characterSetConverter->specCharsToASCII('utf-8', $prefix) . '_';
		}

		$fileName = $coordinates['w'] . $coordinates['h'] . $coordinates['x1'] . $coordinates['y1'];
		$fileName .= $originalResource->getNameWithoutExtension();
		$croppedImage = $path . $prefix . sha1($fileName) . '.' . $extension;

		$originalImage = Environment::getPublicPath() . '/' . rawurldecode($originalResource->getPublicUrl());
		if ($originalImage !== '' && $croppedImage !== '' && !is_file(Environment::getPublicPath() . '/' . $croppedImage)) {
			GeneralUtility::mkdir_deep(Environment::getPublicPath() . '/' . $path);
			$imagick = new \Imagick($originalImage);
			$imagick->cropImage($coordinates['w'], $coordinates['h'], $coordinates['x1'], $coordinates['y1']);
			$imagick->writeImage(Environment::getPublicPath() . '/' . $croppedImage);
			if (!is_file(Environment::getPublicPath() . '/' . $croppedImage)) {
				$croppedImage = '';
			} else {
				GeneralUtility::fixPermissions(Environment::getPublicPath() . '/' . $croppedImage);
			}
		}

		return $croppedImage;
	}

	/**
	 * @param CharsetConverter $characterSetConverter
	 */
	public function injectCharacterSetConverter(CharsetConverter $characterSetConverter) {
		$this->characterSetConverter = $characterSetConverter;
	}
}