<?php

namespace Opentalent\OtTemplating\Controller;

use Opentalent\OtTemplating\Utilities\OtPageRepository;
use PDO;
use TYPO3\CMS\Core\Database\ConnectionPool;
use TYPO3\CMS\Core\DataHandling\DataHandler;
use TYPO3\CMS\Extbase\Mvc\Controller\ActionController;
use TYPO3\CMS\Core\Utility\GeneralUtility;

/**
 * Controller for the OtCustomizer backend submodule
 *
 * @author olivier.massot
 */
class OtCustomizerController extends ActionController {

    CONST templates = [
        'Classic' => [
            'name' => 'Classique',
            'description' => 'Le thème classique, simple et complet.',
            'picture' => 'EXT:ot_templating/Resources/Public/media/theme_classic.png'
        ],
        'Modern' => [
            'name' => 'Moderne',
            'description' => '[Nouveau] Un thème moderne et intuitif.',
            'picture' => 'EXT:ot_templating/Resources/Public/media/theme_modern.png'
        ]
    ];

    /**
     * Index action (default action)
     * Displays the customize page on the backend
     */
    public function indexAction() {

        // Get the current root page's uid
        $rootPageUid = $this->getCurrentRootPageUid();

        // If the current page is not a root page or a subpage of one, abort
        $pageSelected = ($rootPageUid !== null);
        $this->view->assign('pageSelected', (int)$pageSelected);
        if (!$pageSelected) {
            return;
        }

        $this->view->assign('rootPage', $rootPageUid);
        $this->view->assign('templates', self::templates);
    }

    /**
     * A template has been selected, apply the change
     */
    public function selectTemplateAction() {
        $templateKey = $this->request->getArgument('template_key');

        // Get the current root page's uid
        $rootPageUid = $this->getCurrentRootPageUid();

        // applies the change in the database
        $queryBuilder = GeneralUtility::makeInstance(ConnectionPool::class)->getQueryBuilderForTable('pages');
        $queryBuilder->update('pages')
            ->where(
                $queryBuilder->expr()->eq(
                    'uid',
                    $queryBuilder->createNamedParameter($rootPageUid, PDO::PARAM_INT)
                )
            )
            ->set('tx_opentalent_template', $templateKey)
            ->execute()
        ;

        // Clear the page cache
        $this->cleanCache();

        $this->redirect('index');
    }


    /**
     * Return the uid of the root page of the currently selected
     * site, or null if no site's page is selected
     *
     * @return int | null
     */
    public function getCurrentRootPageUid() {
        // Get the current page uid
        $pageId = (int) GeneralUtility::_GP('id');

        // Get the root page of the site
        $otPageRepository = new OtPageRepository();
        $rootPage = $otPageRepository->getRootPageFor($pageId);

        if (!$rootPage['uid'] > 0) {
            return null;
        }

        return (int)$rootPage['uid'];
    }

    /**
     * Cleans the pages cache
     */
    public function cleanCache() {
        $dataHandler = GeneralUtility::makeInstance(DataHandler::class);
        $dataHandler->start([], []);
        $dataHandler->clear_cacheCmd('pages');
    }

    /**
     * Gets the backend user
     *
     * @return \TYPO3\CMS\Core\Authentication\BackendUserAuthentication
     */
    protected function getBackendUser() {
        return $GLOBALS['BE_USER'];
    }
}