show balance for events

src/Controller/EventController.php

@@ -2,6 +2,7 @@
 
 use Container;
 use DateTime;
+use RVR\Finance\BalanceCalculator;
 use RVR\Finance\ExchangeRateCalculator;
 use RVR\PersistentData\Model\Community;
 use RVR\PersistentData\Model\CommunityMember;
@@ -105,10 +106,22 @@ class EventController implements IAuthenticationRequired, ISecured
         }
         Container::$persistentDataManager->loadRelationsFromDb($this->community, true, ['main_currency']);
 
+        /**
+        * @var User $user
+        */
+        $user = \Container::$request->user();
+        $balanceCalculator = new BalanceCalculator($this->community, $user, $event);
+        $balance = $balanceCalculator->calculate();
+
         return new HtmlContent('events/event', [
             'community' => $this->community,
             'event' => $event,
-            'totalCost' => $this->sumTransactions($event)
+            'totalCost' => $this->sumTransactions($event),
+            'debtItems' => $balance['debtItems'],
+            'debtBalance' => $balance['debtBalance'],
+            'outstandingItems' => $balance['outstandingItems'],
+            'outstandingBalance' => $balance['outstandingBalance'],
+            'balance' => $balance['absoluteBalance'],
         ]);
     }