import { createWalletClient, http, zeroAddress } from 'viem';
import { privateKeyToAccount } from 'viem/accounts';
import { base } from 'viem/chains';
import { Tachyon } from '@rathfi/tachyon';

// Create wallet client with your EOA
const walletClient = createWalletClient({
  account: privateKeyToAccount('0xYOUR_PRIVATE_KEY'),
  transport: http(),
  chain: base,
});

// The contract address to delegate to (e.g., a batch executor contract)
const delegateContractAddress = '0xDelegateContractAddress';

async function createEIP7702Transaction() {
  // Sign the authorization - viem handles nonce automatically
  const authorization = await walletClient.signAuthorization({
    contractAddress: delegateContractAddress,
  });

  // Format authorization for Tachyon
  const auth = {
    chainId: authorization.chainId,
    address: authorization.address,
    nonce: Number(authorization.nonce),
    r: authorization.r,
    s: authorization.s,
    v: Number(authorization.v),
    yParity: Number(authorization.yParity) as 0 | 1,
  };

  // Initialize Tachyon SDK
  const tachyon = new Tachyon({
    apiKey: process.env.TACHYON_API_KEY!,
  });

  // Submit transaction with authorization
  const taskId = await tachyon.relay({
    chainId: base.id,
    to: zeroAddress, // Or your target contract
    callData: '0x', // Encoded function call
    value: '0',
    gasLimit: '1000000',
    authorizationList: [auth],
  });

  console.log('Task ID:', taskId);

  // Wait for the transaction to be executed
  const tx = await tachyon.waitForExecutionHash(taskId, 30_000);
  console.log('Transaction executed:', tx);

  return tx;
}

createEIP7702Transaction();

import { createWalletClient, http, zeroAddress } from 'viem';
import { privateKeyToAccount } from 'viem/accounts';
import { base } from 'viem/chains';

// Create wallet client with your EOA
const walletClient = createWalletClient({
  account: privateKeyToAccount('0xYOUR_PRIVATE_KEY'),
  transport: http(),
  chain: base,
});

const delegateContractAddress = '0xDelegateContractAddress';

async function createEIP7702Transaction() {
  // Sign the authorization
  const authorization = await walletClient.signAuthorization({
    contractAddress: delegateContractAddress,
  });

  // Format authorization for the API
  const auth = {
    chainId: authorization.chainId,
    address: authorization.address,
    nonce: Number(authorization.nonce),
    r: authorization.r,
    s: authorization.s,
    v: Number(authorization.v),
    yParity: Number(authorization.yParity) as 0 | 1,
  };

  // Submit to Tachyon API
  const response = await fetch('https://tachyon.rath.fi/api/submit-tx', {
    method: 'POST',
    headers: {
      'Content-Type': 'application/json',
      'api-key': process.env.TACHYON_API_KEY!,
    },
    body: JSON.stringify({
      chainId: base.id,
      to: zeroAddress,
      callData: '0x',
      value: '0',
      gasLimit: '1000000',
      authorizationList: [auth],
      label: 'EIP-7702 Authorization',
    }),
  });

  const result = await response.json();
  console.log('Transaction submitted:', result.data.txId);
  return result;
}

createEIP7702Transaction();