Creating Participation refunds

app/Domains/ParticipantRefund/Controllers/RefundDocumentController.php

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+<?php
+
+namespace App\Domains\ParticipantRefund\Controllers;
+
+use App\Domains\ParticipantRefund\Actions\CreateRefundDocument\CreateRefundDocumentCommand;
+use App\Domains\ParticipantRefund\Actions\CreateRefundDocument\CreateRefundDocumentRequest;
+use App\Scopes\CommonController;
+use Illuminate\Http\Response;
+
+class RefundDocumentController extends CommonController
+{
+    public function __invoke(string $refundToken): Response
+    {
+        $refund = $this->participantRefunds->getByToken($refundToken);
+
+        // Der Beleg enthält die Bankverbindung -- er gehört der Aktionsleitung, nicht dem Token.
+        if ($refund === null || $this->events->getById($refund->event_id) === null) {
+            abort(403, 'Zugriff verweigert.');
+        }
+
+        $documentResponse = new CreateRefundDocumentCommand(new CreateRefundDocumentRequest($refund))->execute();
+
+        if (!$documentResponse->success) {
+            abort(422, $documentResponse->message ?? 'Der Beleg konnte nicht erstellt werden.');
+        }
+
+        return response($documentResponse->pdfContent, 200, [
+            'Content-Type' => 'application/pdf',
+            'Content-Disposition' => 'attachment; filename="' . $documentResponse->filename . '"',
+        ]);
+    }
+}