import { VonPayCheckout, VonPayError } from "@vonpay/checkout-node";

const vonpay = new VonPayCheckout("vp_sk_test_...");

const session = await vonpay.sessions.create({
  amount: 1499,
  currency: "USD",
  country: "US",
  successUrl: "https://example.com/order/123/confirm",
});

console.log(session.checkoutUrl);
// https://checkout.vonpay.com/checkout?session=vp_cs_test_...

// Create a payment intent (auth + capture)
const intent = await vonpay.paymentIntents.create(
  {
    amount: 1499,
    currency: "usd",
    captureMethod: "automatic",
    metadata: { orderId: "ord_42" },
  },
  { idempotencyKey: "ord_42-charge-1" },
);
console.log(intent.id, intent.status); // "vpi_live_…", "succeeded"

// Auth-only + later capture (fulfillment-on-ship)
const auth = await vonpay.paymentIntents.create({ amount: 1499, currency: "usd", captureMethod: "manual" });
await vonpay.paymentIntents.capture(auth.id, { amountToCapture: 1499 });

// Refund a captured intent (partial or full)
const refund = await vonpay.refunds.create({ paymentIntent: intent.id, amount: 500 });

// Create a reusable token for save-card / MIT flows
const token = await vonpay.tokens.create({ buyerId: "buyer_42", setupForFutureUse: "off_session" });

// Read the merchant's processor capability matrix before invoking optional ops
const caps = await vonpay.capabilities.get();
if (caps.supportedOperations.partialRefund) {
  // partial refunds supported — safe to offer partial-refund UI
}