Add some Flash message tests and the flashes to the skeleton template.

app/composer.lock

@@ -2743,16 +2743,16 @@
         },
         {
             "name": "phpstan/phpdoc-parser",
-            "version": "1.29.0",
+            "version": "1.29.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/phpstan/phpdoc-parser.git",
-                "reference": "536889f2b340489d328f5ffb7b02bb6b183ddedc"
+                "reference": "fcaefacf2d5c417e928405b71b400d4ce10daaf4"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/phpstan/phpdoc-parser/zipball/536889f2b340489d328f5ffb7b02bb6b183ddedc",
-                "reference": "536889f2b340489d328f5ffb7b02bb6b183ddedc",
+                "url": "https://api.github.com/repos/phpstan/phpdoc-parser/zipball/fcaefacf2d5c417e928405b71b400d4ce10daaf4",
+                "reference": "fcaefacf2d5c417e928405b71b400d4ce10daaf4",
                 "shasum": ""
             },
             "require": {
@@ -2784,9 +2784,9 @@
             "description": "PHPDoc parser with support for nullable, intersection and generic types",
             "support": {
                 "issues": "https://github.com/phpstan/phpdoc-parser/issues",
-                "source": "https://github.com/phpstan/phpdoc-parser/tree/1.29.0"
+                "source": "https://github.com/phpstan/phpdoc-parser/tree/1.29.1"
             },
-            "time": "2024-05-06T12:04:23+00:00"
+            "time": "2024-05-31T08:52:43+00:00"
         },
         {
             "name": "phpunit/php-code-coverage",

app/src/Bootstrap.php

@@ -73,9 +73,8 @@ class Bootstrap
         $containerBuilder->addDefinitions([
             'config' => $config,
             // more DI stuff
-            'flash' => function () {
-                $messages = [];
-                return new \Slim\Flash\Messages($messages);
+            'flash' => function (ContainerInterface $container) {
+                return $container->get(SessionInterface::class)->getFlash();
             },
             LoggerInterface::class => function() {
                 $logger = new Logger();
@@ -116,10 +115,13 @@ class Bootstrap
      */
     protected static function establishMiddleware(App $app): void
     {
+        /** @var ContainerInterface $container */
+        $container = $app->getContainer();
+
         /**
          * @var Configuration
          */
-        $config = $app->getContainer()->get('config');
+        $config = $container->get('config');
         $app->addErrorMiddleware(true, true, true);
 
         // Twig
@@ -132,19 +134,10 @@ class Bootstrap
              ->addGlobal('site_name', $config->get('site.name'));
         $twig->getEnvironment()
              ->addGlobal('site_description', $config->get('site.description'));
+        $flash = $container->get(SessionInterface::class)->getFlash();
+        $twig->getEnvironment()
+             ->addGlobal('flash', $flash);
         $app->add(TwigMiddleware::create($app, $twig));
-
-        // Flash Messages
-        $app->add(function ($req, $next) {
-            if (session_status() !== PHP_SESSION_ACTIVE) {
-                session_start();
-            }
-
-            /** @var $this ContainerInterface */
-            $this->get('flash')->__construct($_SESSION);
-
-            return $next->handle($req);
-        });
     }
 
     /**

app/src/Controller/User/RegisterUserAction.php

@@ -21,6 +21,7 @@ class RegisterUserAction extends Controller
         $requestData = $this->request->getParsedBody();
 
         if ($requestData['password'] !== $requestData['checked_password']) {
+            $this->session->getFlash()->add('error', "Passwords do not match.");
             $response = $this->render('user/register.twig');
             return $response->withStatus(400);
         }

app/templates/layouts/skeleton.twig

@@ -11,6 +11,11 @@
         </header>
 
         <main>
+            {% for message in flash.get('error') %}
+                <div class="flash error">
+                    {{ message }}
+                </div>
+            {% endfor %}
             {% block content %}{% endblock %}
         </main>
 

app/tests/Controller/ControllerTest.php

@@ -5,6 +5,7 @@ namespace Slovocast\Tests\Controller;
 use Slovocast\Tests\TestCase;
 use Slovocast\Controller\Controller;
 use Psr\Http\Message\ResponseInterface as Response;
+use Odan\Session\SessionInterface;
 
 class ControllerTest extends TestCase
 {
@@ -97,4 +98,34 @@ class ControllerTest extends TestCase
 
         $this->assertEquals('<h1>Slovocast</h1>', $response->getBody());
     }
+
+    public function testFlashMessages(): void
+    {
+        $app = $this->getAppInstance();
+        $session = $app->getContainer()->get(SessionInterface::class);
+
+        $testController = new class($session) extends Controller {
+            protected SessionInterface $session;
+
+            public function __construct(SessionInterface $session)
+            {
+                $this->session = $session;
+            }
+
+            public function respond(): Response
+            {
+                $this->session->getFlash()->add("error", "Error message");
+                return $this->response;
+            }
+        };
+
+        $app->get('/test', $testController);
+        $request = $this->createRequest('GET', '/test');
+
+        $response = $app->handle($request);
+        $flash = $app->getContainer()->get(SessionInterface::class)->getFlash();
+        $errorMessages = $flash->get('error');
+        $this->assertEquals('Error message', $errorMessages[0]);
+        $this->assertEquals(1, count($errorMessages));
+    }
 }

app/tests/Controller/User/RegisterUserActionTest.php

@@ -73,6 +73,9 @@ class RegisterUserActionTest extends TestCase
         $this->assertEquals(400, $response->getStatusCode());
 
         $flash = $container->get(SessionInterface::class)->getFlash();
-        $this->assertEquals('Unable to register user.', $flash->get('error')[0]);
+        $errorMessages = $flash->get('error');
+        $this->assertIsArray($errorMessages);
+        $this->assertNotNull($errorMessages);
+        $this->assertEquals('Unable to register user.', $errorMessage[0]);
     }
 }