feat(india): store e-way bill auto calculated distance in sales invoice (#30908)

erpnext/regional/india/e_invoice/einvoice.js

@@ -99,8 +99,21 @@ erpnext.setup_einvoice_actions = (doctype) => {
 									...data
 								},
 								freeze: true,
-								callback: () => frm.reload_doc() || d.hide(),
-								error: () => d.hide()
+								callback: () => {
+									frappe.show_alert({
+										message: __('E-Way Bill Generated successfully'),
+										indicator: 'green'
+									}, 7);
+									frm.reload_doc();
+									d.hide();
+								},
+								error: () => {
+									frappe.show_alert({
+										message: __('E-Way Bill was not Generated'),
+										indicator: 'red'
+									}, 7);
+									d.hide();
+								}
 							});
 						},
 						primary_action_label: __('Submit')
@@ -202,7 +215,8 @@ const get_ewaybill_fields = (frm) => {
 			'fieldname': 'distance',
 			'label': 'Distance (in km)',
 			'fieldtype': 'Float',
-			'default': frm.doc.distance
+			'default': frm.doc.distance,
+			'description': 'Set as zero to auto calculate distance using pin codes',
 		},
 		{
 			'fieldname': 'transporter_col_break',

erpnext/regional/india/e_invoice/utils.py

@@ -1113,6 +1113,19 @@ class GSPConnector:
 				self.invoice.eway_bill_validity = res.get("result").get("EwbValidTill")
 				self.invoice.eway_bill_cancelled = 0
 				self.invoice.update(args)
+				if res.get("info"):
+					info = res.get("info")
+					# when we have more features (responses) in eway bill, we can add them using below forloop.
+					for msg in info:
+						if msg.get("InfCd") == "EWBPPD":
+							pin_to_pin_distance = int(re.search(r"\d+", msg.get("Desc")).group())
+							frappe.msgprint(
+								_("Auto Calculated Distance is {} KM.").format(str(pin_to_pin_distance)),
+								title="Notification",
+								indicator="green",
+								alert=True,
+							)
+							self.invoice.distance = flt(pin_to_pin_distance)
 				self.invoice.flags.updater_reference = {
 					"doctype": self.invoice.doctype,
 					"docname": self.invoice.name,