Implemented Navigation

src/router/link/Button.php

@@ -0,0 +1,18 @@
+<?php
+namespace router\link;
+
+/**
+ * A button containes out of a link and post parameters
+ * @author kevinfrantz
+ * @deprecated
+ *        
+ */
+class Button
+{
+    private $link;
+    
+    public function __construct(Link $link,array $post){
+        $this->link;
+    }
+}
+

src/router/link/Link.php

@@ -0,0 +1,71 @@
+<?php
+namespace router\link;
+
+/**
+ * A link containes out of get parameters
+ *
+ * @author kevinfrantz
+ *        
+ */
+final class Link implements LinkInterface
+{
+
+    /**
+     * ArrayCollection would be nicer but I have to save time ;)
+     *
+     * @var array
+     */
+    private $parameters;
+
+    /**
+     *
+     * @var string
+     */
+    private $name;
+
+    public function __construct(array $parameters = [], string $name = '')
+    {
+        $this->setParameters($parameters);
+        $this->setName($name);
+    }
+
+    public function setParameters(array $parameters): void
+    {
+        $this->parameters = $parameters;
+    }
+
+    public function setName(string $name): void
+    {
+        $this->name = $name;
+    }
+
+    public function getName(): string
+    {
+        return $this->name;
+    }
+
+    public function getUrl(): string
+    {
+        return "index.php" . $this->getParameters();
+    }
+
+    private function getParameters(): string
+    {
+        $parameters = '?';
+        foreach ($this->parameters as $key => $value) {
+            $parameters .= $key . '=' . $value . '&';
+        }
+        return $parameters;
+    }
+
+    public function isActive(): bool
+    {
+        foreach ($this->parameters as $key => $parameter) {
+            if (! array_key_exists($key, $_GET) || (array_key_exists($key, $_GET) && $_GET[$key]!==$parameter)) {
+                return false;
+            }
+        }
+        return true;
+    }
+}
+

src/router/link/LinkInterface.php

@@ -0,0 +1,17 @@
+<?php
+namespace router\link;
+
+/**
+ *
+ * @author kevinfrantz
+ *        
+ */
+interface LinkInterface
+{
+    public function getName():string;
+    
+    public function getUrl():string;
+    
+    public function isActive():bool;
+}
+