feat: unassign rooms from other participants when unavailable

src/Form/ChoiceLoader/ParticipantRoomChoiceLoader.php

@@ -4,7 +4,6 @@ declare(strict_types=1);
 
 namespace App\Form\ChoiceLoader;
 
-use App\Form\Model\ParticipantDto;
 use App\Form\Model\RoomSelectionDto;
 use Symfony\Component\Form\ChoiceList\ChoiceListInterface;
 use Symfony\Component\Form\ChoiceList\Factory\ChoiceListFactoryInterface;
@@ -13,25 +12,21 @@ use Symfony\Component\Form\ChoiceList\Loader\ChoiceLoaderInterface;
 /**
  * Choice loader for participant room assignments.
  *
- * Generates room choices for each participant based on availability,
- * current assignments, and room capacity constraints. This loader
- * ensures participants can only select rooms with available capacity
- * while maintaining their current assignment if applicable.
+ * Generates room choices for each participant from all selected room types
+ * in Step 1, regardless of current capacity or assignments. Capacity conflicts
+ * are automatically resolved by the field handler through intelligent
+ * auto-unassignment when needed.
  */
 class ParticipantRoomChoiceLoader implements ChoiceLoaderInterface
 {
     private ?ChoiceListInterface $choiceList = null;
 
     /**
-     * @param ParticipantDto[]   $allParticipants  all participant DTOs from the root form
-     * @param RoomSelectionDto[] $selectedRooms    the rooms selected in the previous step
-     * @param int                $participantIndex the index of the current participant
+     * @param RoomSelectionDto[] $selectedRooms the rooms selected in the previous step
      */
     public function __construct(
         private readonly ChoiceListFactoryInterface $factory,
-        private readonly array $allParticipants,
         private readonly array $selectedRooms,
-        private readonly int $participantIndex,
     ) {
     }
 
@@ -66,50 +61,20 @@ class ParticipantRoomChoiceLoader implements ChoiceLoaderInterface
     /**
      * Generates room choices for the specific participant.
      *
+     * Always includes all selected rooms from Step 1 regardless of current capacity.
+     * Capacity conflicts are handled by the field handler during assignment.
+     *
      * @return array<string, int>
      */
     private function generateRoomChoicesForParticipant(): array
     {
-        $roomOccupancy = $this->calculateRoomOccupancy();
         $participantRoomChoices = [];
-        $assignedRoomId = $this->allParticipants[$this->participantIndex]->assignedRoomId ?? null;
 
         foreach ($this->selectedRooms as $roomSelection) {
-            $currentOccupancy = $roomOccupancy[$roomSelection->roomId] ?? 0;
-
-            // If this participant is already assigned to this room, exclude them from occupancy count
-            $adjustedOccupancy = $currentOccupancy;
-            if ($assignedRoomId === $roomSelection->roomId) {
-                --$adjustedOccupancy;
-            }
-
-            $totalCapacity = $roomSelection->quantity * $roomSelection->capacity;
-            $remainingCapacity = $totalCapacity - $adjustedOccupancy;
-
-            // Include room if it has capacity OR if it's the participant's current assignment
-            if ($remainingCapacity > 0 || $assignedRoomId === $roomSelection->roomId) {
-                $participantRoomChoices[$roomSelection->roomLabel] = $roomSelection->roomId;
-            }
+            // Always include all selected rooms - capacity conflicts handled in field handler
+            $participantRoomChoices[$roomSelection->roomLabel] = $roomSelection->roomId;
         }
 
         return $participantRoomChoices;
     }
-
-    /**
-     * Calculates room occupancy based on all participant assignments.
-     *
-     * @return array<int, int>
-     */
-    private function calculateRoomOccupancy(): array
-    {
-        $roomOccupancy = [];
-
-        foreach ($this->allParticipants as $participant) {
-            if (null !== $participant->assignedRoomId) {
-                $roomOccupancy[$participant->assignedRoomId] = ($roomOccupancy[$participant->assignedRoomId] ?? 0) + 1;
-            }
-        }
-
-        return $roomOccupancy;
-    }
 }