chrone: sperate client and server to different repos.

src/containers/Sales/Invoices/InvoiceForm/InvoiceFormHeader.js

@@ -0,0 +1,42 @@
+import React, { useMemo } from 'react';
+import classNames from 'classnames';
+import { useFormikContext } from 'formik';
+import intl from 'react-intl-universal';
+
+import { CLASSES } from 'common/classes';
+import InvoiceFormHeaderFields from './InvoiceFormHeaderFields';
+
+import { getEntriesTotal } from 'containers/Entries/utils';
+import { PageFormBigNumber } from 'components';
+
+import withCurrentOrganization from 'containers/Organization/withCurrentOrganization';
+
+import { compose } from 'redux';
+
+/**
+ * Invoice form header section.
+ */
+function InvoiceFormHeader({
+  // #withCurrentOrganization
+  organization: { base_currency },
+}) {
+  const { values } = useFormikContext();
+
+  // Calculate the total due amount of invoice entries.
+  const totalDueAmount = useMemo(
+    () => getEntriesTotal(values.entries),
+    [values.entries],
+  );
+
+  return (
+    <div className={classNames(CLASSES.PAGE_FORM_HEADER)}>
+      <InvoiceFormHeaderFields />
+      <PageFormBigNumber
+        label={intl.get('due_amount')}
+        amount={totalDueAmount}
+        currencyCode={base_currency}
+      />
+    </div>
+  );
+}
+export default compose(withCurrentOrganization())(InvoiceFormHeader);