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Classes/Controller/SuggestController.php

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+<?php
+
+namespace WapplerSystems\Meilisearch\Controller;
+
+/***************************************************************
+ *  Copyright notice
+ *
+ *  (c) 2017 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.
+ *
+ *  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\Domain\Search\Suggest\SuggestService;
+use WapplerSystems\Meilisearch\System\Solr\SolrUnavailableException;
+use WapplerSystems\Meilisearch\Util;
+use TYPO3\CMS\Core\Utility\GeneralUtility;
+
+/**
+ * Class SuggestController
+ *
+ * @author Frans Saris <frans@beech.it>
+ * @author Timo Hund <timo.hund@dkd.de>
+ */
+class SuggestController extends AbstractBaseController
+{
+    /**
+     * This method creates a suggest json response that can be used in a suggest layer.
+     *
+     * @param string $queryString
+     * @param string $callback
+     * @param array $additionalFilters
+     * @return string
+     */
+    public function suggestAction($queryString, $callback = null, $additionalFilters = [])
+    {
+        // Get suggestions
+        $rawQuery = htmlspecialchars(mb_strtolower(trim($queryString)));
+
+        try {
+            /** @var SuggestService $suggestService */
+            $suggestService = GeneralUtility::makeInstance(
+                SuggestService::class,
+                /** @scrutinizer ignore-type */ $this->typoScriptFrontendController,
+                /** @scrutinizer ignore-type */ $this->searchService,
+                /** @scrutinizer ignore-type */ $this->typoScriptConfiguration);
+
+            $additionalFilters = is_array($additionalFilters) ? array_map("htmlspecialchars", $additionalFilters) : [];
+            $pageId = $this->typoScriptFrontendController->getRequestedId();
+            $languageId = Util::getLanguageUid();
+            $arguments = (array)$this->request->getArguments();
+
+            $searchRequest = $this->getSearchRequestBuilder()->buildForSuggest($arguments, $rawQuery, $pageId, $languageId);
+            $result = $suggestService->getSuggestions($searchRequest, $additionalFilters);
+        } catch (SolrUnavailableException $e) {
+            $this->handleSolrUnavailable();
+            $result = ['status' => false];
+        }
+        if ($callback) {
+            return htmlspecialchars($callback) . '(' . json_encode($result) . ')';
+        }
+        else {
+            return json_encode($result);
+        }
+    }
+
+}