IMPS implementation

lib/features/quick_pay/screens/quick_pay_outside_bank_screen.dart

@@ -1,7 +1,11 @@
+// ignore_for_file: use_build_context_synchronously
+
 import 'dart:async';
 import 'package:flutter/services.dart';
+import 'package:kmobile/api/services/imps_service.dart';
 import 'package:kmobile/api/services/neft_service.dart';
 import 'package:kmobile/api/services/rtgs_service.dart';
+import 'package:kmobile/data/models/imps_transaction.dart';
 import 'package:kmobile/data/models/neft_transaction.dart';
 import 'package:kmobile/data/models/payment_response.dart';
 import 'package:kmobile/data/models/rtgs_transaction.dart';
@@ -118,6 +122,7 @@ class _QuickPayOutsideBankScreen extends State<QuickPayOutsideBankScreen> {
     return [
       AppLocalizations.of(context).neft,
       AppLocalizations.of(context).rtgs,
+      AppLocalizations.of(context).imps,
     ];
   }
 
@@ -151,6 +156,8 @@ class _QuickPayOutsideBankScreen extends State<QuickPayOutsideBankScreen> {
       final amount = double.tryParse(amountController.text) ?? 0;
       final selectedMode = transactionModes(context)[selectedTransactionIndex];
       final isRtgs = selectedMode == AppLocalizations.of(context).rtgs;
+      final isNeft = selectedMode == AppLocalizations.of(context).neft;
+      final isImps = selectedMode == AppLocalizations.of(context).imps;
 
       if (isRtgs && amount < 200000) {
         showDialog(
@@ -174,14 +181,14 @@ class _QuickPayOutsideBankScreen extends State<QuickPayOutsideBankScreen> {
         MaterialPageRoute(
           builder: (context) => TransactionPinScreen(
             onPinCompleted: (pinScreenContext, tpin) async {
-              if (!isRtgs) {
+              if (isNeft) {
                 // NEFT
                 final neftTx = NeftTransaction(
                   fromAccount: widget.debitAccount,
                   toAccount: accountNumberController.text,
                   amount: amountController.text,
                   ifscCode: ifscController.text,
-                  remitterName: "Unknown", // TODO: Get actual remitter name
+                  remitterName: "Unknown", 
                   beneficiaryName: nameController.text,
                   tpin: tpin,
                 );
@@ -214,14 +221,58 @@ class _QuickPayOutsideBankScreen extends State<QuickPayOutsideBankScreen> {
                   );
                   completer.complete(paymentResponse);
                 }
-              } else {
+              } 
+
+              if (isImps) {
+                // IMPS
+                final impsTx = ImpsTransaction(
+                  fromAccount: widget.debitAccount,
+                  toAccount: accountNumberController.text,
+                  amount: amountController.text,
+                  ifscCode: ifscController.text,
+                  remitterName: "Unknown", 
+                  beneficiaryName: nameController.text,
+                  tpin: tpin,
+                );
+                final impsService = getIt<ImpsService>();
+                final completer = Completer<PaymentResponse>();
+
+                Navigator.of(pinScreenContext).pushReplacement(
+                  MaterialPageRoute(
+                    builder: (_) => PaymentAnimationScreen(
+                        paymentResponse: completer.future),
+                  ),
+                );
+
+                try {
+                  final neftResponse =
+                      await impsService.processImpsTransaction(impsTx);
+                  final paymentResponse = PaymentResponse(
+                    isSuccess: neftResponse.message.toUpperCase() == 'SUCCESS',
+                    date: DateTime.now(),
+                    creditedAccount: impsTx.toAccount,
+                    amount: impsTx.amount,
+                    currency: 'INR',
+                    utr: neftResponse.utr,
+                  );
+                  completer.complete(paymentResponse);
+                } catch (e) {
+                  final paymentResponse = PaymentResponse(
+                    isSuccess: false,
+                    errorMessage: e.toString(),
+                  );
+                  completer.complete(paymentResponse);
+                }
+              } 
+
+              if(isRtgs) {
                 // RTGS
                 final rtgsTx = RtgsTransaction(
                   fromAccount: widget.debitAccount,
                   toAccount: accountNumberController.text,
                   amount: amountController.text,
                   ifscCode: ifscController.text,
-                  remitterName: "Unknown", // TODO: Get actual remitter name
+                  remitterName: "Unknown", 
                   beneficiaryName: nameController.text,
                   tpin: tpin,
                 );