E-Invoice - Enhancement to allow EInvoice to be generated for cases with refund

resources/views/pages/pdfs/purchase_order_table.blade.php

@@ -105,6 +105,22 @@
     <tfoot>
     @php
         $subtotalWithDiscount = bcsub($subtotal, $voucherDiscount, 5);
+        if (!$totalPayment) {
+            $serviceCharge = $transaction->service_charge;
+        }
+        else {
+            $serviceCharge = $booking->transactions()
+                ->where('type', TransactionType::PAYMENT)
+                ->where('status', ApprovalStatus::COMPLETED)
+                ->get()
+                ->sum(function ($transaction) {
+                    return $transaction->service_charge;
+                });
+        }
+        if ($paymentSumRefund && $displayedSubtotal === 0){
+            $subtotal = bcsub($paymentSumRefund, $serviceCharge, 5);
+            $displayedSubtotal = bcsub($paymentSumRefund, $serviceCharge, 2);
+        }
     @endphp
     <tr class="subtotal">
         <td colspan="4"></td>
@@ -114,20 +130,6 @@
     <tr class="billingcharges">
         <td colspan="4"></td>
         <td class="right">Service Charges</td>
-        <?php
-            if (!$totalPayment) {
-                $serviceCharge = $transaction->service_charge;
-            }
-            else {
-                $serviceCharge = $booking->transactions()
-                    ->where('type', TransactionType::PAYMENT)
-                    ->where('status', ApprovalStatus::COMPLETED)
-                    ->get()
-                    ->sum(function ($transaction) {
-                        return $transaction->service_charge;
-                    });
-            }
-        ?>
         <td class="right">{{ number_format($serviceCharge, 2) }}</td>
     </tr>
     @if($totalPayment && $refundedServiceCharge)