wip: insurance booking

src/Form/Service/ParticipantFieldHandlerRegistry.php

@@ -91,10 +91,18 @@ class ParticipantFieldHandlerRegistry
     /**
      * Processes all participant fields from submitted form data using registered handlers.
      *
-     * This is the main entry point for field processing. It iterates through all
-     * participants in the submitted data and applies the appropriate handlers in
-     * dependency order. Each handler determines whether it should process the
-     * participant's data and updates the booking DTO accordingly.
+     * This is the main entry point for field processing. It processes handlers in dependency
+     * order, applying each handler to ALL participants before moving to the next handler.
+     * This ensures that cross-participant logic (like family booking detection) has access
+     * to complete data from all participants.
+     *
+     * Processing order: handler-first, then participants
+     * - Process handler A for all participants
+     * - Process handler B for all participants
+     * - etc.
+     *
+     * This is critical for handlers that depend on booking-level state (like insurance
+     * family detection which needs all participants' ages to be processed first).
      *
      * @param array<string, mixed> $submittedData The submitted form data containing participants array
      * @param BookingDtoInterface  $bookingDto    The booking DTO to update with processed field values (create or edit)
@@ -109,16 +117,17 @@ class ParticipantFieldHandlerRegistry
         // Get handlers sorted by dependency order (uses cache if available)
         $sortedHandlerNames = $this->getSortedHandlers();
 
-        // Process each participant's data
-        foreach ($submittedData['participants'] as $participantIndex => $participantData) {
-            // Skip invalid participant data
-            if (false === is_array($participantData)) {
-                continue;
-            }
+        // Process each handler across all participants before moving to the next handler
+        // This ensures booking-level state (like family booking detection) is accurate
+        foreach ($sortedHandlerNames as $handlerName) {
+            $handler = $this->handlers[$handlerName];
 
-            // Apply each handler in dependency order
-            foreach ($sortedHandlerNames as $handlerName) {
-                $handler = $this->handlers[$handlerName];
+            // Apply this handler to all participants
+            foreach ($submittedData['participants'] as $participantIndex => $participantData) {
+                // Skip invalid participant data
+                if (false === is_array($participantData)) {
+                    continue;
+                }
 
                 // Let each handler decide if it should process this participant's data
                 if ($handler->shouldProcess($participantData, (int) $participantIndex)) {