From bc8b0ae8cefb32986fe86072685ee1e03aa0af16 Mon Sep 17 00:00:00 2001
From: Alexander Schranz <alexander@sulu.io>
Date: Sun, 4 Feb 2024 17:20:08 +0100
Subject: [PATCH] Add highlight implementation for redisearch adapter

---
 .../src/RediSearchSchemaManager.php                |  2 +-
 .../src/RediSearchSearcher.php                     | 14 ++++++++++++++
 2 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/packages/seal-redisearch-adapter/src/RediSearchSchemaManager.php b/packages/seal-redisearch-adapter/src/RediSearchSchemaManager.php
index 9665ffd8..a11262f3 100644
--- a/packages/seal-redisearch-adapter/src/RediSearchSchemaManager.php
+++ b/packages/seal-redisearch-adapter/src/RediSearchSchemaManager.php
@@ -173,7 +173,7 @@ private function createJsonFields(array $fields, string $prefix = '', string $js
                     'sortable' => $field->sortable,
                     'filterable' => $field->filterable,
                 ],
-                $field instanceof Field\ObjectField => $indexFields = \array_replace($indexFields, $this->createJsonFields($field->fields, $name, $jsonPath)),
+                $field instanceof Field\ObjectField => $indexFields = \array_replace($indexFields, $this->createJsonFields($field->fields, $name . '.', $jsonPath)),
                 $field instanceof Field\TypedField => \array_map(function ($fields, $type) use ($name, &$indexFields, $jsonPath, $field) {
                     $newJsonPath = $jsonPath . '[\'' . $type . '\']';
                     if ($field->multiple) {
diff --git a/packages/seal-redisearch-adapter/src/RediSearchSearcher.php b/packages/seal-redisearch-adapter/src/RediSearchSearcher.php
index 35e5c747..45482d43 100644
--- a/packages/seal-redisearch-adapter/src/RediSearchSearcher.php
+++ b/packages/seal-redisearch-adapter/src/RediSearchSearcher.php
@@ -96,6 +96,20 @@ public function search(Search $search): Result
             }
         }
 
+        if ($search->highlightFields !== []) {
+            $arguments[] = 'HIGHLIGHT';
+            $arguments[] = 'FIELDS';
+            $arguments[] = \count($search->highlightFields);
+
+            foreach ($search->highlightFields as $highlightField) {
+                $arguments[] = $highlightField;
+            }
+
+            $arguments[] = 'TAGS';
+            $arguments[] = $search->highlightPreTag;
+            $arguments[] = $search->highlightPostTag;
+        }
+
         $arguments[] = 'DIALECT';
         $arguments[] = '3';