feat(elasticsearch): re-introduce v7 support (#6827)

* feat(elasticsearch): re-introduce v7 support

* feat(elasticsearch): re-introduce v7 support

* feat(elasticsearch): re-introduce v7 support

* feat(elasticsearch): re-introduce v7 support

* fix: use global namespace

* style: apply cs

* fix: ignore es7/8 related phpstan issues

---------

Co-authored-by: Frank Verschuren <[email protected]>
Co-authored-by: darthf1 <[email protected]>

Author: darthf1

Bundle/DependencyInjection/ApiPlatformExtension.php

@@ -812,7 +812,11 @@ private function registerElasticsearchConfiguration(ContainerBuilder $container,
             return;
         }
 
-        $clientClass = class_exists(\Elasticsearch\Client::class) ? \Elasticsearch\Client::class : \Elastic\Elasticsearch\Client::class;
+        $clientClass = !class_exists(\Elasticsearch\Client::class)
+            // ES v7
+            ? \Elastic\Elasticsearch\Client::class
+            // ES v8 and up
+            : \Elasticsearch\Client::class;
 
         $clientDefinition = new Definition($clientClass);
         $container->setDefinition('api_platform.elasticsearch.client', $clientDefinition);

Bundle/DependencyInjection/Compiler/ElasticsearchClientPass.php

@@ -40,8 +40,10 @@ public function process(ContainerBuilder $container): void
         }
 
         if (class_exists(\Elasticsearch\ClientBuilder::class)) {
+            // ES v7
             $builderName = \Elasticsearch\ClientBuilder::class;
         } else {
+            // ES v8 and up
             $builderName = \Elastic\Elasticsearch\ClientBuilder::class;
         }
 

Bundle/DependencyInjection/Configuration.php

@@ -470,7 +470,12 @@ private function addElasticsearchSection(ArrayNodeDefinition $rootNode): void
                             ->validate()
                                 ->ifTrue()
                                 ->then(static function (bool $v): bool {
-                                    if (!(class_exists(\Elasticsearch\Client::class) || class_exists(\Elastic\Elasticsearch\Client::class))) {
+                                    if (
+                                        // ES v7
+                                        !class_exists(\Elasticsearch\Client::class)
+                                        // ES v8 and up
+                                        && !class_exists(\Elastic\Elasticsearch\Client::class)
+                                    ) {
                                         throw new InvalidConfigurationException('The elasticsearch/elasticsearch package is required for Elasticsearch support.');
                                     }