created the conditionMiddleware class

Author: arp

src/Mouf/Mvc/Splash/ConditionMiddleware.php

@@ -0,0 +1,53 @@
+<?php
+
+namespace Mouf\Mvc\Splash;
+
+use Mouf\Utils\Common\Condition\ToCondition;
+use Psr\Http\Message\ResponseInterface;
+use Psr\Http\Message\ServerRequestInterface;
+use Psr\Http\Server\MiddlewareInterface;
+use Psr\Http\Server\RequestHandlerInterface;
+
+/**
+ * A middleware used to conditionally redirect to other middleware(s)
+ *
+ * Class ConditionMiddleware
+ * @package Mouf\Mvc\Splash
+ */
+class ConditionMiddleware implements MiddlewareInterface{
+
+    /**
+     * @var callable
+     */
+    private $condition;
+    /**
+     * @var MiddlewareInterface
+     */
+    private $ifMiddleware;
+    /**
+     * @var MiddlewareInterface
+     */
+    private $elseMiddleware;
+
+    public function __construct(ToCondition $condition, MiddlewareInterface $ifMiddleware, MiddlewareInterface $elseMiddleware = null)
+    {
+        $this->condition = $condition;
+        $this->ifMiddleware = $ifMiddleware;
+        $this->elseMiddleware = $elseMiddleware;
+    }
+
+    /**
+     * Process an incoming server request and return a response, optionally delegating
+     * response creation to a handler.
+     */
+    public function process(ServerRequestInterface $request, RequestHandlerInterface $handler): ResponseInterface
+    {
+        if($this->condition->isOk()) {
+            $this->ifMiddleware->process($request, $handler);
+        } else if($this->elseMiddleware) {
+            $this->elseMiddleware->process($request, $handler);
+        } else {
+            $handler->handle($request);
+        }
+    }
+}