// Follow Otomate launches and trade them, in about 30 lines (TypeScript, Node 18+): npm install @otomate/sdk viem
// PRIVATE_KEY=0x… npx tsx quickstart.ts   — uses ETH on WETH pairs; 0.001 ETH per buy. Read the docs before risking funds.
import { createOtomate, otomateViemChain } from '@otomate/sdk';
import { createWalletClient, http, type Address } from 'viem';
import { privateKeyToAccount } from 'viem/accounts';

const account = privateKeyToAccount(process.env.PRIVATE_KEY as `0x${string}`);
const walletClient = createWalletClient({ account, chain: otomateViemChain('ink'), transport: http() });
// Your builder code earns you a fee on top of each trade you send (0 here; at most 200 bps).
const otomate = createOtomate({ chain: 'ink', walletClient, builder: null, apiKey: process.env.OTOMATE_API_KEY });

otomate.feed({ topics: ['launch', 'trade'], cursor: process.env.CURSOR })
  .on('launch', async e => {
    console.log(`new launch ${e.data.symbol} ${e.token} by ${e.data.creator}`);
    if (e.data.quote !== otomate.chain.weth) return;                       // WETH pairs: we pay in ETH
    // The launch protection charges buys in the first seconds: wait it out.
    const until = (e.data.launchedAt + e.data.surcharge.duration + 1) * 1000;
    await new Promise(r => setTimeout(r, Math.max(0, until - Date.now())));
    const r = await otomate.buy(e.token as Address, 10n ** 15n);            // 0.001 ETH, 1 % slippage
    console.log(`bought ${r.tokenAmount} for ${r.quoteAmount} wei (fee ${r.quoteFee}, burned ${r.burn}) ${r.hash}`);
  })
  .on('trade', e => console.log(`${e.data.side} ${e.token} ${e.data.quoteRaw} wei, progress ${e.data.progressBps / 100} %`))
  .on('reorg', e => console.log(`reorg: drop what you stored above block ${e.afterBlock}`))
  .on('final', e => console.log(`final up to block ${e.block}`))
  .on('error', e => console.error(e.message))
  .start();