Cielo payment

cielo_payment.java

// CieloServiceBindListener.java
public class CieloServiceBindListener implements ServiceBindListener {
    private final NavController navController;
    private final PaymentViewModel viewModel;
    private final Method method;

    public CieloServiceBindListener(@NonNull final NavController navController, @NonNull final PaymentViewModel viewModel, @NonNull final Method method) {
        this.navController = navController;
        this.viewModel = viewModel;
        this.method = method;
    }

    @Override
    public void onServiceBound() {
        viewModel.createOrder(navController, method);
    }

    @Override
    public void onServiceBoundError(Throwable throwable) {
        Log.d("froy", "onServiceBoundError");
        viewModel.bindError(navController, throwable);
    }

    @Override
    public void onServiceUnbound() {
        Log.d("froy", "onServiceUnbound");
    }
}

// PaymentViewModel.java
public class PaymentViewModel extends AndroidViewModel {
    ...
    
    void payWith(@NonNull final Activity activity, @NonNull final NavController navController, @NonNull final Method method) {
        if (method == Method.DEBIT || method == Method.CREDIT) {
            final Credentials credentials = new Credentials(BuildConfig.CLIENT_ID, BuildConfig.ACCESS_TOKEN);
            final PaymentState paymentState = liveState.getValue();

            liveState.setValue(paymentState.copy(Result.PROCESSING));
            orderManager = new OrderManager(credentials, getApplication().getApplicationContext());
            orderManager.bind(activity, new CieloServiceBindListener(navController, this, method));
        }
    }

    public void createOrder(@NonNull final NavController navController, @NonNull final Method method) {
        final PaymentState paymentState = liveState.getValue();
        final ImmutableList<Item> items = paymentState.getItems();
        final String orderId = items.toString();
        final Order emptyOrder = orderManager.createDraftOrder(orderId);

        if (emptyOrder != null) {
            final Order order = items
                    .reduce(emptyOrder, new ImmutableList.OnReduceTransformer<Item, Order>() {
                        @Override
                        public Order transform(@NonNull Order accumulator, @NonNull Item item) {
                            final Product product = item.getProduct();
                            final String sku = String.valueOf(product.getCode());
                            final String name = product.getName();
                            final long price = Double.valueOf(product.getValue().doubleValue() * 100).longValue();
                            final int quantity = item.getQuantity();
                            final String unityOfMeasure = "UNIDADE";

                            accumulator.addItem(sku, name, price, quantity, unityOfMeasure);
                            return accumulator;
                        }
                    }); 

            final PaymentListener paymentListener = getPaymentListener(navController);

            orderManager.placeOrder(order);

            if (method == Method.DEBIT) orderManager.checkoutOrder(orderId, order.getPrice(), PaymentCode.DEBITO_AVISTA, paymentListener);
            else if (method == Method.CREDIT) orderManager.checkoutOrder(orderId, order.getPrice(), PaymentCode.CREDITO_AVISTA, paymentListener);
            else unbindCielo();
        }
    }

    private PaymentListener getPaymentListener(@NonNull final NavController navController) {
        return new PaymentListener() {
            @Override
            public void onStart() {
                Log.d("froy", "onStart payment");
            }

            @Override
            public void onPayment(Order order) {
                Log.d("froy", "onPayment payment");
                unbindCielo();
            }

            @Override
            public void onCancel() {
                Log.d("froy", "onCancel payment");
                unbindCielo();
            }

            @Override
            public void onError(PaymentError paymentError) {
                Log.d("froy", "onError payment");
                unbindCielo();
            }
        };
    }
}