add discount

apps/admin.saladeaula.digital/app/routes/_.$orgid.enrollments.buy/discount.tsx

@@ -134,3 +134,20 @@ export function Discount({ onChange, ...props }: DiscountProps) {
     </Popover>
   )
 }
+
+export function applyDiscount(
+  subtotal: number,
+  discountAmount: number,
+  discountType: 'FIXED' | 'PERCENT'
+) {
+  if (subtotal <= 0) {
+    return 0
+  }
+
+  const amount =
+    discountType === 'PERCENT'
+      ? (subtotal * discountAmount) / 100
+      : discountAmount
+
+  return Math.min(amount, subtotal)
+}