refactoring: invoice form.

refactoring: receipt form.
refactoring: bill form.
refactoring: estimate form.

client/src/containers/Sales/Invoices/InvoiceForm/utils.js

@@ -1,16 +1,43 @@
+import moment from 'moment';
 import { transformToForm, repeatValue } from 'utils';
 
+export const MIN_LINES_NUMBER = 4;
 
-export function transformToEditForm(invoice, defaultInvoice, linesNumber) {
+export const defaultInvoiceEntry = {
+  index: 0,
+  item_id: '',
+  rate: '',
+  discount: 0,
+  quantity: 1,
+  description: '',
+  total: 0,
+};
+
+export const defaultInvoice = {
+  customer_id: '',
+  invoice_date: moment(new Date()).format('YYYY-MM-DD'),
+  due_date: moment().format('YYYY-MM-DD'),
+  delivered: '',
+  invoice_no: '',
+  reference_no: '',
+  invoice_message: '',
+  terms_conditions: '',
+  entries: [...repeatValue(defaultInvoiceEntry, MIN_LINES_NUMBER)],
+};
+
+/**
+ * Transform invoice to initial values in edit mode.
+ */
+export function transformToEditForm(invoice) {
   return {
     ...transformToForm(invoice, defaultInvoice),
     entries: [
       ...invoice.entries.map((invoice) => ({
-        ...transformToForm(invoice, defaultInvoice.entries[0]),
+        ...transformToForm(invoice, defaultInvoiceEntry),
       })),
       ...repeatValue(
-        defaultInvoice,
-        Math.max(linesNumber - invoice.entries.length, 0),
+        defaultInvoiceEntry,
+        Math.max(MIN_LINES_NUMBER - invoice.entries.length, 0),
       ),
     ],
   };