processPayment method

Implementation

Future<LokotroPayOnResponse> processPayment({
  required MastercardPaymentRequest paymentRequest,
  required String userId,
  String? sessionToken,
}) async {
  try {
    final requestBody = {
      'payment_request': paymentRequest.toJson(),
      'user_id': userId,
      'session_token': sessionToken,
      'require_3ds': paymentRequest.require3DS,
      'client_info': await _getClientInfo(),
    };

    final response = await _dio.post(
      '/api/v1/payments/mastercard/process',
      data: requestBody,
    );

    return _convertBackendResponse(response.data);

  } on DioException catch (e) {
    return _handleBackendError(e, paymentRequest);
  } catch (e) {
    return LokotroPayOnResponse(
      title: 'System Error',
      message: 'Payment processing failed: $e',
      paymentStatus: LokotroPaymentStatus.failed,
      apiResponseCode: LokotroPayApiResponseCode.lok007,
      amount: paymentRequest.amount,
      currency: paymentRequest.currency,
      systemRef: DateTime.now().millisecondsSinceEpoch.toString(),
      customRef: paymentRequest.orderId,
      timestamp: DateTime.now(),
      transactionId: null,
    );
  }
}