Implemented Navigation

src/controller/AbstractDefaultController.php

@@ -0,0 +1,67 @@
+<?php
+namespace controller;
+
+use router\link\Link;
+use router\Router;
+
+/**
+ * This controllers render the frames/default.html.twig
+ *
+ * @author kevinfrantz
+ *        
+ */
+class AbstractDefaultController extends AbstractController
+{
+
+    protected function render(string $template, array $variables = []): void
+    {
+        parent::render($template, $this->addMenuItems($variables));
+    }
+
+    private function addMenuItems(array $variables): array
+    {
+        if (array_key_exists('menu_items', $variables)) {
+            throw new \Exception('You aren\'t allowed to define this key!');
+        }
+        $variables['menu_items'] = $this->getMenuItems();
+        return $variables;
+    }
+
+    private function getMenuItems(): array
+    {
+        return array_merge([
+            new Link([], 'home'),
+            new Link([
+                Router::CONTROLLER => 'product',
+                Router::ACTION => 'list'
+            ], 'product list'),
+            new Link([
+                Router::CONTROLLER => 'order',
+                Router::ACTION => 'basket'
+            ], 'basket')
+        ], $this->getUserMenuItems());
+    }
+
+    private function getUserMenuItems(): array
+    {
+        if ($this->core->getUser()) {
+            return [
+                new Link([
+                    Router::CONTROLLER => 'user',
+                    Router::ACTION => 'logout'
+                ], 'logout')
+            ];
+        }
+        return [
+            new Link([
+                Router::CONTROLLER => 'user',
+                Router::ACTION => 'login'
+            ], 'login'),
+            new Link([
+                Router::CONTROLLER => 'user',
+                Router::ACTION => 'register'
+            ], 'register')
+        ];
+    }
+}
+