137 lines
3.7 KiB
Dart
137 lines
3.7 KiB
Dart
import 'package:flutter/material.dart';
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import 'package:freezed_annotation/freezed_annotation.dart';
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import 'package:go_router/go_router.dart';
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import 'package:provider/provider.dart';
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import 'package:qpay/screens/transaction_controller.dart';
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import '../../http/http.dart';
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part 'confirm_controller.freezed.dart';
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part 'confirm_controller.g.dart';
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class ConfirmModel {
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bool isLoading = false;
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String status = '';
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String? errorMessage;
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bool isCancelled = false;
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}
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@freezed
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abstract class ConfirmData with _$ConfirmData {
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const factory ConfirmData({
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required String status,
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required String errorMessage,
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}) = _ConfirmData;
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factory ConfirmData.fromJson(Map<String, dynamic> json) =>
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_$ConfirmDataFromJson(json);
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}
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class ConfirmController extends ChangeNotifier {
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final ConfirmModel model = ConfirmModel();
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late TransactionController transactionController;
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final Http http = Http();
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BuildContext context;
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ConfirmController(this.context) {
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transactionController = Provider.of<TransactionController>(
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context,
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listen: false,
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);
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}
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void _showErrorSnackBar(String? message) {
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WidgetsBinding.instance.addPostFrameCallback((_) {
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ScaffoldMessenger.of(context).showSnackBar(
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SnackBar(
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content: Text(message.toString()),
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behavior: SnackBarBehavior.floating,
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backgroundColor: Colors.deepOrange,
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),
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);
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});
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}
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Future<void> doTransaction() async {
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try {
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model.isLoading = true;
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notifyListeners();
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transactionController
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.model
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.formData = transactionController.model.formData.copyWith(
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type: "REQUEST",
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trace: transactionController.model.confirmationData['trace'],
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authType: transactionController.model.selectedPaymentProcessor.authType,
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);
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dynamic response = await http.post(
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'/transaction',
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transactionController.model.formData,
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);
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logger.i(response.toString());
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if (response['status'] != 'FAILED') {
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model.status = response['status'];
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transactionController.updateReceiptData(response);
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if (transactionController.model.selectedPaymentProcessor.authType ==
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"WEB") {
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if (context.mounted) {
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context.push(
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'/gateway',
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extra: transactionController.model.receiptData?['targetUrl'],
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);
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}
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} else {
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await pollTransaction(transactionController.model.receiptData?['id']);
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context.push('/receipt');
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}
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} else {
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model.status = response['status'];
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model.errorMessage = response['errorMessage'];
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_showErrorSnackBar(response['errorMessage']);
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}
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} catch (e) {
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logger.e(e);
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model.errorMessage = e.toString();
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_showErrorSnackBar(
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"Problem completing the transaction, please try again.",
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);
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}
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model.isLoading = false;
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notifyListeners();
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}
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Future<void> pollTransaction(String uid) async {
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while (!model.isCancelled) {
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// Check again after delay in case it was cancelled during the delay
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if (model.isCancelled) break;
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try {
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dynamic response = await http.get('/transaction/poll/$uid');
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logger.i(response.toString());
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if (response['status'] == 'SUCCESS') {
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model.status = response['status'];
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transactionController.updateReceiptData(response);
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notifyListeners();
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break;
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}
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} catch (e) {
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logger.e(e);
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_showErrorSnackBar(
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"Network error. Please try again or contact support",
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);
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}
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// Check cancellation flag instead of true
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// Wait 5 seconds before the next poll
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await Future.delayed(const Duration(seconds: 5));
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}
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}
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}
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