Implemented additional event information

app/Domains/Event/Actions/UpdateParticipant/UpdateParticipantCommand.php

@@ -72,11 +72,63 @@ class UpdateParticipantCommand {
 
 
         $p->save();
+
+        if ($this->request->participationOptions !== null) {
+            $this->syncParticipationOptions($p);
+        }
+
         $this->response->success = true;
         $this->response->participant = $p;
         return $this->response;
     }
 
+    /**
+     * Ersetzt die zugeordneten Teilnahmeoptionen anhand der übergebenen Antworten. Nachträgliche Zuordnung im
+     * Back-Office ist lückenlos möglich: nur gegen die Event-Definition gültige Antworten werden gespeichert,
+     * leere/entfallene Antworten werden abgeräumt. Frage-/Options-Label werden als Snapshot mitgeschrieben.
+     */
+    private function syncParticipationOptions(EventParticipant $participant): void
+    {
+        $participant->selectedOptions()->delete();
+
+        $answers = $this->request->participationOptions ?? [];
+
+        foreach ($participant->event?->participation_options ?? [] as $question) {
+            $key = $question['key'] ?? null;
+            if ($key === null) {
+                continue;
+            }
+
+            $value = $answers[$key] ?? null;
+            if ($value === null || $value === '') {
+                continue;
+            }
+
+            $option = null;
+            foreach ($question['options'] ?? [] as $candidate) {
+                if (($candidate['value'] ?? null) === $value) {
+                    $option = $candidate;
+                    break;
+                }
+            }
+
+            if ($option === null) {
+                continue;
+            }
+
+            $label = trim((string)($question['label'] ?? ''));
+
+            $participant->selectedOptions()->create([
+                'tenant' => $participant->tenant,
+                'event_id' => $participant->event_id,
+                'question_key' => $key,
+                'question_label' => $label !== '' ? $label : ($question['title'] ?? $key),
+                'value' => $value,
+                'value_label' => $option['label'] ?? $value,
+            ]);
+        }
+    }
+
     private function handleAmountChanges(EventParticipant $participant) {
         $this->response->amountPaid = $participant->amount_paid;
         $this->response->amountExpected = $participant->amount;