add functions for routes and login

src/User/UserController.php

@@ -16,4 +16,32 @@ class UserController
             'name' => 'name'
         ]);
     }
+
+    public function login(Request $request, Response $response): Response
+    {
+        $view = Twig::fromRequest($request);
+
+        return $view->render($response, 'login.html.twig');
+    }
+
+    public function doLogin(Request $request, Response $response): Response
+    {
+        $_SESSION['user_id'] = 1;
+        $_SESSION['user']    = ['id' => 1, 'email' => 'email@email.com'];
+        $location = '/dashboard';
+        if(isset($_SESSION['intended'])) {
+            $location = $_SESSION['intended'];
+        }
+
+        return $response->withHeader('Location', $location)->withStatus(302);
+    }
+
+    public function dashboard(Request $request, Response $response): Response
+    {
+        $view = Twig::fromRequest($request);
+
+        return $view->render($response, 'dashboard.html.twig', [
+            'name' => 'logged in',
+        ]);
+    }
 }