wip: feedback about booked and assigned rooms

src/Service/BookingService.php

@@ -102,4 +102,22 @@ class BookingService
 
         return $participantsCount;
     }
+
+
+    /**
+     * Calculates the number of participants assigned to each room ID.
+     *
+     * @return array<int, int> an array where the key is the room ID and the value is the count of assigned participants
+     */
+    public function getRoomAssignmentCounts(BookingCreateDto $bookingCreateDto): array
+    {
+        $counts = [];
+        foreach ($bookingCreateDto->participants as $participant) {
+            if (null !== $participant->assignedRoomId) {
+                $counts[$participant->assignedRoomId] = ($counts[$participant->assignedRoomId] ?? 0) + 1;
+            }
+        }
+
+        return $counts;
+    }
 }