Support middleware behavior for action result encoder

Author: ilijastuden

composer.json

@@ -15,6 +15,7 @@
         "activecollab/utils": "^2.0",
         "psr/http-factory": "^1.0",
         "psr/http-message": "^1.0",
+        "psr/http-server-middleware": "^1.0",
         "psr/log": "~1.0",
         "laminas/laminas-diactoros": "^2.8"
     },

composer.lock

@@ -14,12 +14,15 @@
 use ActiveCollab\ContainerAccess\ContainerAccessInterface\Implementation as ContainerAccessImplementation;
 use ActiveCollab\Controller\ActionResult\Container\ActionResultContainerInterface;
 use ActiveCollab\Controller\ActionResultEncoder\ValueEncoder\ValueEncoderInterface;
+use LogicException;
 use Psr\Http\Message\ResponseInterface;
 use Psr\Http\Message\ServerRequestInterface;
+use Psr\Http\Server\MiddlewareInterface;
+use Psr\Http\Server\RequestHandlerInterface;
 use Psr\Log\LoggerInterface;
 use RuntimeException;
 
-class ActionResultEncoder implements ActionResultEncoderInterface, ContainerAccessInterface
+class ActionResultEncoder implements ActionResultEncoderInterface, ContainerAccessInterface, MiddlewareInterface
 {
     use ContainerAccessImplementation;
 
@@ -99,6 +102,21 @@ public function &addValueEncoder(ValueEncoderInterface ...$value_encoders): Acti
         return $this;
     }
 
+    public function process(
+        ServerRequestInterface $request,
+        RequestHandlerInterface $handler
+    ): ResponseInterface
+    {
+        if (!$this->getEncodeOnExit()) {
+            throw new LogicException('Action result can be encoded after handling only.');
+        }
+
+        return $this->tryToEncodeValue(
+            $handler->handle($request),
+            $this->action_result_container
+        );
+    }
+
     public function __invoke(
         ServerRequestInterface $request,
         ResponseInterface $response,