wip: refactor forms

src/Form/Service/ParticipantFormConfigurator.php

@@ -0,0 +1,41 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Form\Service;
+
+use App\Form\Model\BookingCreateDto;
+
+/**
+ * Central service for configuring dynamic fields in the participant form.
+ *
+ * This class encapsulates all business logic for determining field options,
+ * choices, and states (e.g., visibility, disabled status) based on the
+ * overall booking state and individual participant data.
+ */
+class ParticipantFormConfigurator
+{
+    public function __construct(
+        private readonly ParticipantRoomChoiceLoaderFactory $roomChoiceLoaderFactory,
+    )
+    {
+    }
+
+    /**
+     * Gets the complete form options for the 'assignedRoomId' field.
+     */
+    public function getRoomFieldOptions(BookingCreateDto $bookingDto, int $participantIndex): array
+    {
+        $choiceLoader = $this->roomChoiceLoaderFactory->create(
+            $bookingDto->participants,
+            $bookingDto->getSelectedRooms(),
+            $participantIndex
+        );
+
+        return [
+            'label' => 'Zimmer',
+            'placeholder' => 'Bitte wählen',
+            'choice_loader' => $choiceLoader,
+        ];
+    }
+}