add interest

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

@@ -57,6 +57,7 @@ import {
   InputGroupButton,
   InputGroupInput
 } from '@repo/ui/components/ui/input-group'
+import { calcInterest } from './payment'
 
 type ReviewProps = {
   state: WizardState
@@ -79,6 +80,13 @@ export function Review({ state, onSubmit }: ReviewProps) {
     ? applyDiscount(subtotal, coupon.amount, coupon.type) * -1
     : 0
   const total = subtotal > 0 ? subtotal + discount : 0
+  const installments = state.installments
+  const interest_amount =
+    state.payment_method === 'CREDIT_CARD' &&
+    typeof installments === 'number' &&
+    installments > 1
+      ? calcInterest(total, installments) - total
+      : 0
 
   return (
     <>
@@ -117,6 +125,8 @@ export function Review({ state, onSubmit }: ReviewProps) {
               )
             })}
           </TableBody>
+
+          {/* Summary */}
           <TableFooter>
             <TableRow>
               <TableCell className="text-right" colSpan={3}>
@@ -126,6 +136,7 @@ export function Review({ state, onSubmit }: ReviewProps) {
                 <Currency>{subtotal}</Currency>
               </TableCell>
             </TableRow>
+            {/* Discount */}
             <TableRow>
               <TableCell className="text-right" colSpan={3}>
                 Descontos
@@ -134,12 +145,26 @@ export function Review({ state, onSubmit }: ReviewProps) {
                 <Currency>{discount}</Currency>
               </TableCell>
             </TableRow>
+            {/* Interest */}
+            {interest_amount ? (
+              <TableRow>
+                <TableCell className="text-right" colSpan={3}>
+                  Juros
+                </TableCell>
+                <TableCell>
+                  <Currency>{interest_amount}</Currency>
+                </TableCell>
+              </TableRow>
+            ) : (
+              <></>
+            )}
+            {/* Total */}
             <TableRow>
               <TableCell className="text-right" colSpan={3}>
                 Total
               </TableCell>
               <TableCell>
-                <Currency>{total}</Currency>
+                <Currency>{total + interest_amount}</Currency>
               </TableCell>
             </TableRow>
           </TableFooter>