ot_typo3/ot_templating/Classes/Utility/OtCacheManager.php

<?php

namespace Opentalent\OtTemplating\Utility;

use Opentalent\OtTemplating\Page\OtPageRepository;
use Psr\Http\Message\ResponseInterface;
use RuntimeException;
use TYPO3\CMS\Core\Service\OpcodeCacheService;
use TYPO3\CMS\Core\Utility\GeneralUtility;
use TYPO3\CMS\Install\Service\ClearCacheService;
use TYPO3\CMS\Install\Service\Typo3tempFileService;
use TYPO3\CMS\Core\Cache\CacheManager;

class OtCacheManager
{

    /**
     * Clears the page cache
     *
     * @param int $pageUid
     */
    public static function clearPageCache(int $pageUid) {
        $cacheManager = GeneralUtility::makeInstance(CacheManager::class);
        $cacheManager->flushCachesInGroupByTag(
            'pages',
            'pageId_' . $pageUid
        );
    }

    /**
     * Clears cache for each page of the site
     *
     * @param int $pageUid
     */
    public static function clearSiteCache(int $pageUid) {

        $pageRepository = new OtPageRepository();
        $rootPage = $pageRepository->getRootPageFor($pageUid);
        $pages = $pageRepository->getAllSubpagesForPage($rootPage['uid']);
        $pages[] = $rootPage;

        $cacheManager = GeneralUtility::makeInstance(CacheManager::class);

        $tags = array_map(function ($page) {
            return 'pageId_' . $page['uid'];
        }, $pages);
        $cacheManager->flushCachesInGroupByTags('pages', $tags);
    }

    /**
     * Clear cache framework and opcode caches
     * (@see TYPO3\CMS\Install\Controller\MaintenanceController )
     */
    public static function clearAllCache(): ResponseInterface
    {
        GeneralUtility::makeInstance(ClearCacheService::class)->clearAll();
        GeneralUtility::makeInstance(OpcodeCacheService::class)->clearAllActive();
    }

    /**
     * Clear typo3temp/assets
     * (@see TYPO3\CMS\Install\Controller\MaintenanceController )
     */
    public static function clearAssetsTempfiles()
    {
        $typo3tempFileService = GeneralUtility::makeInstance(Typo3tempFileService::class);

        try {
            $typo3tempFileService->clearAssetsFolder("/typo3temp/assets/css");
        } catch (RuntimeException $e) {
            // 1501781454 code means directory does not exist, we can ignore this error
            if ($e->getCode() != 1501781454) {
                throw $e;
            }
        }

        try {
            $typo3tempFileService->clearAssetsFolder("/typo3temp/assets/js");
        } catch (RuntimeException $e) {
            // 1501781454 code means directory does not exist, we can ignore this error
            if ($e->getCode() != 1501781454) {
                throw $e;
            }
        }
    }
}