refactor(ticket): use refunds as amount source

app/Domains/Ticket/Services/AdminAppTicketService.php

@@ -142,7 +142,7 @@ class AdminAppTicketService
 
         $unitPrice = (float) $purchaseItem->precio_unitario;
         $itemTotal = (float) $purchaseItem->total;
-        $itemRefundedAmount = (float) ($purchaseItem->refunded_amount ?? 0);
+        $itemRefundedAmount = $this->refundedAmountForPurchaseItem($purchaseItem);
         $remainingItemAmount = max(0.0, round($itemTotal - $itemRefundedAmount, 2));
 
         $total = null;
@@ -201,7 +201,10 @@ class AdminAppTicketService
             }
 
             $refundAmount = $this->refundAmount($purchaseItem, $tenant, $refundType);
-            $refundedAmount = round((float) $purchaseItem->refunded_amount + $refundAmount, 2);
+            $refundedAmount = round(
+                $this->refundedAmountForPurchaseItem($purchaseItem) + $refundAmount,
+                2,
+            );
 
             if ($refundedAmount > (float) $purchaseItem->total) {
                 throw ValidationException::withMessages([
@@ -220,14 +223,17 @@ class AdminAppTicketService
                 'amount' => number_format($refundAmount, 2, '.', ''),
             ]);
 
-            $purchaseItem->update([
-                'refunded_amount' => number_format($refundedAmount, 2, '.', ''),
-            ]);
-
             return $ticket->refresh()->load(self::RELATIONS);
         });
     }
 
+    private function refundedAmountForPurchaseItem(PurchaseItem $purchaseItem): float
+    {
+        return round((float) TicketRefund::query()
+            ->where('purchase_item_id', $purchaseItem->id)
+            ->sum('amount'), 2);
+    }
+
     private function ensureRefundIsAllowed(Tenant $tenant, string $refundType): void
     {
         $isAllowed = match ($refundType) {