voucher saftey

2025-10-14 23:17:32 +02:00
parent f5014fe906
commit 4835041f14
2 changed files with 4 additions and 1 deletions
--- a/cmd/cart/cart-grain.go
+++ b/cmd/cart/cart-grain.go
@@ -260,6 +260,10 @@ func (c *CartGrain) UpdateTotals() {
 	for _, voucher := range c.Vouchers {
 		if _, ok := voucher.AppliesTo(c); ok {
 			value := NewPriceFromIncVat(voucher.Value, 25)
+			if c.TotalPrice.IncVat <= value.IncVat {
+				// don't apply discounts to more than the total price
+				continue
+			}

 			c.TotalDiscount.Add(*value)
 			c.TotalPrice.Subtract(*value)