add true random search when no parameters (excepted pager )are given …

…on search - Games-of-Switzerland/swissgamesgarden#127

CHANGELOG.md

@@ -11,6 +11,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Changed
 - remove caches on both Search & Autocomplete endpoints (Elasticsearch)
 
+### Added
+- add true random search when no parameters (excepted pager )are given on search - Games-of-Switzerland/swissgamesgarden#127
+
 ## [0.6.0] - 2024-02-09
 ### Changed
 - move Linters php-deprecation-detector, php-cs-fixer & psalm into own Tools/ComposerJson

web/modules/custom/gos_elasticsearch/src/Plugin/rest/resource/ElasticGamesResource.php

@@ -120,6 +120,19 @@ public function get(Request $request): CacheableJsonResponse {
     $index = $this->elasticsearchPluginManager->createInstance(self::ELASTICSEARCH_PLUGIN_ID);
     $es_query = $this->buildBaseGamesElasticsearchQuery($index, $resource_validator);
 
+    // When no parameters (excepted pager) have been submitted,
+    // then the order must be random.
+    // This is intended to be used on Homepage only.
+    if ($resource_validator->getRaw() === ['page' => '0']) {
+      $es_query['body']['sort'] = [
+        '_script' => [
+          'script' => 'Math.random()',
+          'type' => 'number',
+          'order' => 'asc',
+        ],
+      ];
+    }
+
     // Add the sort property.
     if (!empty($resource_validator->getSort())) {
       $es_query['body']['sort'] = $this->addSort($resource_validator->getSort());