import { wrapFetchWithPayment } from "@x402/fetch";
import { x402Client, x402HTTPClient } from "@x402/core/client";
import { ExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

const privateKey = process.env.EVM_PRIVATE_KEY as `0x${string}`;
if (!privateKey) {
  throw new Error("Set EVM_PRIVATE_KEY to a Base wallet funded with USDC");
}

const signer = privateKeyToAccount(privateKey);
const client = new x402Client();
client.register("eip155:*", new ExactEvmScheme(signer));

const fetchWithPayment = wrapFetchWithPayment(fetch, client);
const httpClient = new x402HTTPClient(client);

const response = await fetchWithPayment("https://api.fetch-sentry.online/fetch?url=https%3A%2F%2Fexample.com", { method: "GET" });
const data = await response.json();

console.log("Paid response:", JSON.stringify(data, null, 2));

if (response.ok) {
  const receipt = httpClient.getPaymentSettleResponse((name) => response.headers.get(name));
  console.log("Payment settled:", receipt);
}