import { createWalletClient, getContract, custom, parseAbi } from "viem";
import { mainnet } from "viem/chains";

// A mock custom provider that throws this error for everything except eth_chainId
const executionErrorInCustomProviderWithCode3: any = new Error(
  `Execution error in custom provider`,
);
executionErrorInCustomProviderWithCode3.name = "CustomProviderExecutionError";
// ABI encoded "Error(string)" of "reverted"
executionErrorInCustomProviderWithCode3.data =
  "0x08c379a0000000000000000000000000000000000000000000000000000000000000002000000000000000000000000000000000000000000000000000000000000000087265766572746564000000000000000000000000000000000000000000000000";
executionErrorInCustomProviderWithCode3.code = 3;

const ethereumProvider = {
  async request({ method }: { method: string }) {
    console.log("Provider called with method:", method);
    if (method === "eth_chainId") {
      return "0x1";
    }

    throw executionErrorInCustomProviderWithCode3;
  },
};

const abi = parseAbi([
  "function transfer(address to, uint256 amount) returns (bool)",
]);

const sender = "0x1234567890123456789012345678901234567890";

const client = createWalletClient({
  chain: mainnet,
  transport: custom(ethereumProvider),
  account: sender,
});

const contract = getContract({
  address: "0x1111111111111111111111111111111111111111",
  abi,
  client,
});

try {
  await contract.write.transfer([
    "0x2222222222222222222222222222222222222222",
    0n,
  ]);
} catch (error: any) {
  console.log("error.name", error.name);
  console.log("error.cause?.name", error.cause?.name);

  // This should be CustomProviderExecutionError, but is `undefined`
  console.log("error.cause?.cause?.name", error.cause?.cause?.code);
  console.log();
  console.log();
  console.log(error);
}