start

src/App/Flash.php

@@ -0,0 +1,33 @@
+<?php
+declare(strict_types=1);
+
+namespace App;
+
+final class Flash
+{
+    public function __construct(private SessionManager $session) {}
+
+    public function set(string $type, string $message): void
+    {
+        $this->session->start();
+        $_SESSION['flash'] = [
+            'type' => $type,
+            'message' => $message,
+        ];
+    }
+
+    public function get(): ?array
+    {
+        $this->session->start();
+        if (empty($_SESSION['flash']) || !is_array($_SESSION['flash'])) {
+            return null;
+        }
+        $f = $_SESSION['flash'];
+        unset($_SESSION['flash']);
+
+        return [
+            'type' => (string)($f['type'] ?? 'info'),
+            'message' => (string)($f['message'] ?? ''),
+        ];
+    }
+}