<?php declare(strict_types = 1);

namespace WapplerSystems\Meilisearch\Domain\Index\PageIndexer\Helper\UriBuilder;

/***************************************************************
 *  Copyright notice
 *
 *  (c) 2019 Timo Hund <timo.hund@dkd.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.
 *  A copy is found in the textfile GPL.txt and important notices to the license
 *  from the author is found in LICENSE.txt distributed with these scripts.
 *
 *
 *  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 WapplerSystems\Meilisearch\IndexQueue\Item;
use WapplerSystems\Meilisearch\IndexQueue\PageIndexerDataUrlModifier;
use WapplerSystems\Meilisearch\System\Logging\MeilisearchLogManager;
use WapplerSystems\Meilisearch\System\Url\UrlHelper;
use TYPO3\CMS\Core\Utility\GeneralUtility;

/**
 * Implementations of this class are able to build an indexing url for meilisearch page indexing.
 */
abstract class AbstractUriStrategy
{
    /**
     * @var MeilisearchLogManager|null|object
     */
    protected $logger;

    /**
     * AbstractUriStrategy constructor.
     * @param MeilisearchLogManager|null $logger
     */
    public function __construct(MeilisearchLogManager $logger = null)
    {
        $this->logger = $logger ?? GeneralUtility::makeInstance(MeilisearchLogManager::class, /** @scrutinizer ignore-type */ __CLASS__);
    }

    /**
     * @param UrlHelper $urlHelper
     * @param array $overrideConfiguration
     * @return UrlHelper
     */
    protected function applyTypoScriptOverridesOnIndexingUrl(UrlHelper $urlHelper, array $overrideConfiguration = []): UrlHelper
    {
        // check whether we should use ssl / https
        if (!empty($overrideConfiguration['scheme'])) {
            $urlHelper->setScheme($overrideConfiguration['scheme']);
        }

        // overwriting the host
        if (!empty($overrideConfiguration['host'])) {
            $urlHelper->setHost($overrideConfiguration['host']);
        }

        // overwriting the port
        if (!empty($overrideConfiguration['port'])) {
            $urlHelper->setPort($overrideConfiguration['port']);
        }

        // setting a path if TYPO3 is installed in a sub directory
        if (!empty($overrideConfiguration['path'])) {
            $urlHelper->setPath($overrideConfiguration['path']);
        }

        return $urlHelper;
    }

    /**
     * @param Item $item
     * @param int $language
     * @param string $mountPointParameter
     * @param array $options
     * @return string
     */
    public function getPageIndexingUriFromPageItemAndLanguageId(Item $item, int $language = 0, string $mountPointParameter = '', $options = []): string
    {
        $pageIndexUri = $this->buildPageIndexingUriFromPageItemAndLanguageId($item, $language, $mountPointParameter);
        $urlHelper = GeneralUtility::makeInstance(UrlHelper::class, $pageIndexUri);
        $overrideConfiguration = is_array($options['frontendDataHelper.']) ? $options['frontendDataHelper.'] : [];
        $urlHelper = $this->applyTypoScriptOverridesOnIndexingUrl($urlHelper, $overrideConfiguration);
        $dataUrl = $urlHelper->getUrl();

        if (!GeneralUtility::isValidUrl($dataUrl)) {
            $this->logger->log(
                MeilisearchLogManager::ERROR,
                'Could not create a valid URL to get frontend data while trying to index a page.',
                [
                    'item' => (array)$item,
                    'constructed URL' => $dataUrl,
                    'scheme' => $urlHelper->getScheme(),
                    'host' => $urlHelper->getHost(),
                    'path' => $urlHelper->getPath(),
                    'page ID' => $item->getRecordUid(),
                    'indexer options' => $options
                ]
            );

            throw new \RuntimeException(
                'Could not create a valid URL to get frontend data while trying to index a page. Created URL: ' . $dataUrl,
                1311080805
            );
        }


        return $this->applyDataUrlModifier($item, $language, $dataUrl, $urlHelper);
    }

    /**
     * @param Item $item
     * @param int $language
     * @param string $mountPointParameter
     * @return mixed
     */
    abstract protected function buildPageIndexingUriFromPageItemAndLanguageId(Item $item, int $language = 0, string $mountPointParameter = '');

    /**
     * @param Item $item
     * @param int $language
     * @param string $dataUrl
     * @param UrlHelper $urlHelper
     * @return string
     */
    protected function applyDataUrlModifier(Item $item, int $language, $dataUrl, UrlHelper $urlHelper):string
    {
        if (empty($GLOBALS['TYPO3_CONF_VARS']['EXTCONF']['meilisearch']['IndexQueuePageIndexer']['dataUrlModifier'])) {
            return $dataUrl;
        }

        $dataUrlModifier = GeneralUtility::makeInstance($GLOBALS['TYPO3_CONF_VARS']['EXTCONF']['meilisearch']['IndexQueuePageIndexer']['dataUrlModifier']);
        if (!$dataUrlModifier instanceof PageIndexerDataUrlModifier) {
            throw new \RuntimeException($GLOBALS['TYPO3_CONF_VARS']['EXTCONF']['meilisearch']['IndexQueuePageIndexer']['dataUrlModifier'] . ' is not an implementation of WapplerSystems\Meilisearch\IndexQueue\PageIndexerDataUrlModifier', 1290523345);
        }

        return $dataUrlModifier->modifyDataUrl($dataUrl,
            [
                'item' => $item, 'scheme' => $urlHelper->getScheme(), 'host' => $urlHelper->getHost(),
                'path' => $urlHelper->getPath(), 'pageId' => $item->getRecordUid(), 'language' => $language
            ]
        );
    }
}