1 files changed, 135 insertions, 0 deletions
diff --git a/src/Controller.php b/src/Controller.php
new file mode 100644
index 0000000..ddec2c0
--- /dev/null
+++ b/src/Controller.php
@@ -0,0 +1,135 @@
+<?php
+
+namespace Jasny;
+
+use Psr\Http\Message\ServerRequestInterface;
+use Psr\Http\Message\ResponseInterface;
+
+/**
+ * Controller
+ */
+abstract class Controller
+{
+    /**
+     * Server request
+     * @var ServerRequestInterface
+     **/
+    protected $request = null;
+
+    /**
+     * Response
+     * @var ResponseInterface
+     **/
+    protected $response = null;
+
+    /**
+     * Run the controller
+     *
+     * @return ResponseInterface
+     */
+    abstract public function run();
+
+    /**
+     * Get request, set for controller
+     *
+     * @return ServerRequestInterface
+     */
+    public function getRequest()
+    {
+        return $this->request;
+    }
+
+    /**
+     * Get response. set for controller
+     *
+     * @return ResponseInterface
+     */
+    public function getResponse()
+    {
+        return $this->response;
+    }
+
+    /**
+     * Run the controller as function
+     *
+     * @param ServerRequestInterface $request
+     * @param ResponseInterface      $response
+     * @return ResponseInterface
+     */
+    public function __invoke(ServerRequestInterface $request, ResponseInterface $response)
+    {
+        $this->request = $request;
+        $this->response = $response;
+
+        return $this->run();
+    }
+
+    /**
+     * Check if response is 2xx succesful, or empty
+     * 
+     * @return boolean
+     */
+    public function isSuccessful()
+    {
+        $code = $this->getResponseStatusCode();
+
+        return !$code || ($code >= 200 && $code < 300);
+    }
+    
+    /**
+     * Check if response is a 3xx redirect
+     * 
+     * @return boolean
+     */
+    public function isRedirection()
+    {
+        $code = $this->getResponseStatusCode();
+
+        return $code >= 300 && $code < 400;
+    }
+    
+    /**
+     * Check if response is a 4xx client error
+     * 
+     * @return boolean
+     */
+    public function isClientError()
+    {
+        $code = $this->getResponseStatusCode();
+
+        return $code >= 400 && $code < 500;
+    }
+    
+    /**
+     * Check if response is a 5xx redirect
+     * 
+     * @return boolean
+     */
+    public function isServerError()
+    {
+        return $this->getResponseStatusCode() >= 500;
+    }   
+
+    /**
+      * Check if response is 4xx or 5xx error
+      *
+      * @return boolean
+      */
+     public function isError()
+     {
+         return $this->isClientError() || $this->isServerError();
+     } 
+
+     /**
+      * Get status code of response
+      *
+      * @return int
+      */
+     protected function getResponseStatusCode()
+     {
+        $response = $this->getResponse();
+
+        return $response ? $response->getStatusCode() : 0;
+     }
+}
+