RVRNEXT-7 calculate balances in CommunityController

src/Controller/CommunityController.php

@@ -1,6 +1,7 @@
 <?php namespace RVR\Controller;
 
 use DateTime;
+use RVR\Finance\BalanceCalculator;
 use RVR\PersistentData\Model\Community;
 use RVR\PersistentData\Model\CommunityMember;
 use RVR\PersistentData\Model\Currency;
@@ -50,11 +51,34 @@ class CommunityController implements IAuthenticationRequired
 
         \Container::$persistentDataManager->loadRelationsFromDb($community, false, ['main_currency']);
 
+        $balanceCalculator = new BalanceCalculator($community);
+        $debts = $balanceCalculator->calculate();
+        $debtUsers = [];
+        $debtBalance = 0.0;
+        $outstandingUsers = [];
+        $outstandingBalance = 0.0;
+        foreach ($debts as $debt) {
+            if ($debt['payer']->getId() === \Container::$request->user()->getUniqueId()) {
+                $debtBalance += $debt['amount'];
+                $debtUsers[] = $debt;
+            }
+            if ($debt['payee']->getId() === \Container::$request->user()->getUniqueId()) {
+                $outstandingBalance += $debt['amount'];
+                $outstandingUsers[] = $debt;
+            }
+        }
+        $balance = $outstandingBalance - $debtBalance;
+
         return new HtmlContent('communities/community', [
             'community' => $community,
             'members' => $this->getMembers($community),
             'currencies' => $this->getCurrencies($community),
             'upcomingEvents' => [],
+            'debtUsers' => $debtUsers,
+            'debtBalance' => $debtBalance,
+            'outstandingUsers' => $outstandingUsers,
+            'outstandingBalance' => $outstandingBalance,
+            'balance' => $balance,
             'editPermission' => $ownCommunityMember->getOwner()
         ]);
     }