Add a page handler class.

app/src/Exception/TemplateNotSetException.php

@@ -0,0 +1,7 @@
+<?php
+
+namespace Slovocast\Exception;
+
+use Exception;
+
+class TemplateNotSetException extends Exception { }

app/src/Handler/Channel/Page/CreateChannelPage.php

@@ -2,14 +2,9 @@
 
 namespace Slovocast\Handler\Channel\Page;
 
-use Odan\Session\SessionInterface;
-use Psr\Http\Message\ResponseInterface as Response;
-use Slovocast\Handler\Handler;
+use Slovocast\Handler\Page;
 
-class CreateChannelPage extends Handler
+class CreateChannelPage extends Page 
 {
-    public function handle(): Response
-    {
-        return $this->render('channel/create.twig');
-    }
+    protected string $template = "channel/create.twig";
 }

app/src/Handler/Page.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace Slovocast\Handler;
+
+use Psr\Http\Message\ResponseInterface;
+use Slovocast\Exception\TemplateNotSetException;
+
+abstract class Page extends Handler
+{
+    protected string $template = '';
+    protected array $pageProps = [];
+
+    /**
+     * @throws TemplateNotSetException
+     */
+    public function handle(): ResponseInterface
+    {
+        if (!$this->template) {
+            throw new TemplateNotSetException("No template set.");
+        }
+
+        return $this->render($this->template, $this->pageProps);
+    }
+}

app/src/Handler/Page/DashboardPage.php

@@ -8,10 +8,12 @@ use Psr\Log\LoggerInterface;
 use Slovocast\Domain\Repository\Channel\ChannelRepositoryInterface;
 use Slovocast\Domain\Repository\User\UserRepositoryInterface;
 use Slovocast\Exception\EntityNotFoundException;
-use Slovocast\Handler\Handler;
+use Slovocast\Handler\Page;
 
-class DashboardPage extends Handler
+class DashboardPage extends Page 
 {
+    protected string $template = "dashboard";
+
     public function __construct(
         protected UserRepositoryInterface $userRepository,
         protected ChannelRepositoryInterface $channelRepository,
@@ -33,6 +35,7 @@ class DashboardPage extends Handler
             $channel = null;
         }
 
-        return $this->render('dashboard.twig', [ 'channel' => $channel ]);
+        $this->pageProps = [ 'channel' => $channel ];
+        return parent::handle();
     }
 }

app/src/Handler/Page/HomePage.php

@@ -2,13 +2,9 @@
 
 namespace Slovocast\Handler\Page;
 
-use Psr\Http\Message\ResponseInterface as Response;
-use Slovocast\Handler\Handler;
+use Slovocast\Handler\Page;
 
-class HomePage extends Handler
+class HomePage extends Page 
 {
-    public function handle(): Response
-    {
-        return $this->render('home.twig');
-    }
+    protected string $template = "home.twig";
 }

app/src/Handler/User/Page/LoginUserPage.php

@@ -2,14 +2,9 @@
 
 namespace Slovocast\Handler\User\Page;
 
-use Odan\Session\SessionInterface;
-use Psr\Http\Message\ResponseInterface as Response;
-use Slovocast\Handler\Handler;
+use Slovocast\Handler\Page;
 
-class LoginUserPage extends Handler
+class LoginUserPage extends Page 
 {
-    public function handle(): Response
-    {
-        return $this->render('user/login.twig');
-    }
+    protected string $template = "user/login.twig";
 }

app/src/Handler/User/Page/RegisterUserPage.php

@@ -2,14 +2,9 @@
 
 namespace Slovocast\Handler\User\Page;
 
-use Odan\Session\SessionInterface;
-use Psr\Http\Message\ResponseInterface as Response;
-use Slovocast\Handler\Handler;
+use Slovocast\Handler\Page;
 
-class RegisterUserPage extends Handler
+class RegisterUserPage extends Page 
 {
-    public function handle(): Response
-    {
-        return $this->render('user/register.twig');
-    }
+    protected string $template = "user/register.twig";
 }