fix: due Amount on edit page is calculated wrong with "Ex tax"

packages/webapp/src/containers/Sales/Invoices/InvoiceForm/InvoiceFormFooterRight.tsx

@@ -10,18 +10,16 @@ import {
   TotalLineBorderStyle,
   TotalLineTextStyle,
 } from '@/components';
-import { useInvoiceAggregatedTaxRates, useInvoiceTotals } from './utils';
+import { useInvoiceAggregatedTaxRates } from './utils';
 import { TaxType } from '@/interfaces/TaxRates';
+import {
+  InvoiceDueAmountFormatted,
+  InvoicePaidAmountFormatted,
+  InvoiceSubTotalFormatted,
+  InvoiceTotalFormatted,
+} from './components';
 
 export function InvoiceFormFooterRight() {
-  // Calculate the total due amount of invoice entries.
-  const {
-    formattedSubtotal,
-    formattedTotal,
-    formattedDueTotal,
-    formattedPaymentTotal,
-  } = useInvoiceTotals();
-
   const {
     values: { inclusive_exclusive_tax, currency_code },
   } = useFormikContext();
@@ -38,7 +36,7 @@ export function InvoiceFormFooterRight() {
               : 'Subtotal'}
           </>
         }
-        value={formattedSubtotal}
+        value={<InvoiceSubTotalFormatted />}
       />
       {taxEntries.map((tax, index) => (
         <TotalLine
@@ -50,18 +48,18 @@ export function InvoiceFormFooterRight() {
       ))}
       <TotalLine
         title={`Total (${currency_code})`}
-        value={formattedTotal}
+        value={<InvoiceTotalFormatted />}
         borderStyle={TotalLineBorderStyle.SingleDark}
         textStyle={TotalLineTextStyle.Bold}
       />
       <TotalLine
         title={<T id={'invoice_form.label.payment_amount'} />}
-        value={formattedPaymentTotal}
+        value={<InvoicePaidAmountFormatted />}
         borderStyle={TotalLineBorderStyle.None}
       />
       <TotalLine
         title={<T id={'invoice_form.label.due_amount'} />}
-        value={formattedDueTotal}
+        value={<InvoiceDueAmountFormatted />}
         textStyle={TotalLineTextStyle.Bold}
       />
     </InvoiceTotalLines>

packages/webapp/src/containers/Sales/Invoices/InvoiceForm/InvoiceFormHeader.tsx

@@ -8,7 +8,7 @@ import InvoiceFormHeaderFields from './InvoiceFormHeaderFields';
 
 import { CLASSES } from '@/constants/classes';
 import { PageFormBigNumber } from '@/components';
-import { useInvoiceSubtotal } from './utils';
+import { useInvoiceDueAmount } from './utils';
 
 /**
  * Invoice form header section.
@@ -32,7 +32,7 @@ function InvoiceFormBigTotal() {
   } = useFormikContext();
 
   // Calculate the total due amount of invoice entries.
-  const totalDueAmount = useInvoiceSubtotal();
+  const totalDueAmount = useInvoiceDueAmount();
 
   return (
     <PageFormBigNumber

packages/webapp/src/containers/Sales/Invoices/InvoiceForm/components.tsx

@@ -4,14 +4,21 @@ import intl from 'react-intl-universal';
 import * as R from 'ramda';
 import { Button } from '@blueprintjs/core';
 import { useFormikContext } from 'formik';
-import { ExchangeRateInputGroup } from '@/components';
+import { ExchangeRateInputGroup, FormatNumber } from '@/components';
 import { useCurrentOrganization } from '@/hooks/state';
-import { useInvoiceIsForeignCustomer, useInvoiceTotal } from './utils';
-import withSettings from '@/containers/Settings/withSettings';
+import {
+  useInvoiceCurrencyCode,
+  useInvoiceDueAmount,
+  useInvoiceIsForeignCustomer,
+  useInvoicePaidAmount,
+  useInvoiceSubtotal,
+  useInvoiceTotal,
+} from './utils';
 import { useUpdateEffect } from '@/hooks';
 import { transactionNumber } from '@/utils';
-import withDialogActions from '@/containers/Dialog/withDialogActions';
 import { DialogsName } from '@/constants/dialogs';
+import withSettings from '@/containers/Settings/withSettings';
+import withDialogActions from '@/containers/Dialog/withDialogActions';
 import {
   useSyncExRateToForm,
   withExchangeRateFetchingLoading,
@@ -109,3 +116,47 @@ export const InvoiceExchangeRateSync = R.compose(withDialogActions)(
     return null;
   },
 );
+
+/**
+ *Renders the invoice formatted total.
+ * @returns {JSX.Element}
+ */
+export const InvoiceTotalFormatted = () => {
+  const currencyCode = useInvoiceCurrencyCode();
+  const total = useInvoiceTotal();
+
+  return <FormatNumber value={total} currency={currencyCode} />;
+};
+
+/**
+ * Renders the invoice formatted subtotal.
+ * @returns {JSX.Element}
+ */
+export const InvoiceSubTotalFormatted = () => {
+  const currencyCode = useInvoiceCurrencyCode();
+  const subTotal = useInvoiceSubtotal();
+
+  return <FormatNumber value={subTotal} currency={currencyCode} />;
+};
+
+/**
+ * Renders the invoice formatted due amount.
+ * @returns {JSX.Element}
+ */
+export const InvoiceDueAmountFormatted = () => {
+  const currencyCode = useInvoiceCurrencyCode();
+  const dueAmount = useInvoiceDueAmount();
+
+  return <FormatNumber value={dueAmount} currency={currencyCode} />;
+};
+
+/**
+ * Renders the invoice formatted paid amount.
+ * @returns {JSX.Element}
+ */
+export const InvoicePaidAmountFormatted = () => {
+  const currencyCode = useInvoiceCurrencyCode();
+  const paidAmount = useInvoicePaidAmount();
+
+  return <FormatNumber value={paidAmount} currency={currencyCode} />;
+};

packages/webapp/src/containers/Sales/Invoices/InvoiceForm/utils.tsx

@@ -269,59 +269,6 @@ export const useInvoiceSubtotal = () => {
   return React.useMemo(() => getEntriesTotal(entries), [entries]);
 };
 
-/**
- * Retreives the invoice totals.
- */
-export const useInvoiceTotals = () => {
-  const {
-    values: { entries, currency_code: currencyCode },
-  } = useFormikContext();
-
-  // Retrieves the invoice entries total.
-  const total = React.useMemo(() => getEntriesTotal(entries), [entries]);
-
-  const total_ = useInvoiceTotal();
-
-  // Retrieves the formatted total money.
-  const formattedTotal = React.useMemo(
-    () => formattedAmount(total_, currencyCode),
-    [total_, currencyCode],
-  );
-  // Retrieves the formatted subtotal.
-  const formattedSubtotal = React.useMemo(
-    () => formattedAmount(total, currencyCode, { money: false }),
-    [total, currencyCode],
-  );
-  // Retrieves the payment total.
-  const paymentTotal = React.useMemo(() => 0, []);
-
-  // Retireves the formatted payment total.
-  const formattedPaymentTotal = React.useMemo(
-    () => formattedAmount(paymentTotal, currencyCode),
-    [paymentTotal, currencyCode],
-  );
-  // Retrieves the formatted due total.
-  const dueTotal = React.useMemo(
-    () => total - paymentTotal,
-    [total, paymentTotal],
-  );
-  // Retrieves the formatted due total.
-  const formattedDueTotal = React.useMemo(
-    () => formattedAmount(dueTotal, currencyCode),
-    [dueTotal, currencyCode],
-  );
-
-  return {
-    total,
-    paymentTotal,
-    dueTotal,
-    formattedTotal,
-    formattedSubtotal,
-    formattedPaymentTotal,
-    formattedDueTotal,
-  };
-};
-
 /**
  * Detarmines whether the invoice has foreign customer.
  * @returns {boolean}
@@ -409,14 +356,25 @@ export const useInvoiceTotal = () => {
   );
 };
 
+/**
+ * Retrieves the paid amount of the invoice.
+ * @returns {number}
+ */
+export const useInvoicePaidAmount = () => {
+  const { invoice } = useInvoiceFormContext();
+
+  return invoice?.payment_amount || 0;
+};
+
 /**
  * Retreives the invoice due amount.
  * @returns {number}
  */
 export const useInvoiceDueAmount = () => {
   const total = useInvoiceTotal();
+  const paidAmount = useInvoicePaidAmount();
 
-  return total;
+  return Math.max(total - paidAmount, 0);
 };
 
 /**
@@ -438,3 +396,13 @@ export const useIsInvoiceTaxExclusive = () => {
 
   return values.inclusive_exclusive_tax === TaxType.Exclusive;
 };
+
+/**
+ * Retrieves the invoice currency code.
+ * @returns {string}
+ */
+export const useInvoiceCurrencyCode = () => {
+  const { values } = useFormikContext();
+
+  return values.currency_code;
+};