polymarket-terminal/src/sniper.js

/**
 * sniper.js
 * Entry point for the Orderbook Sniper bot.
 * Places tiny GTC BUY orders at $0.01 on both sides of ETH/SOL/XRP 5-min markets.
 *
 * Run with: npm run sniper       (live)
 *           npm run sniper-sim   (simulation)
 */

import { validateMMConfig } from './config/index.js';
import config from './config/index.js';
import logger from './utils/logger.js';
import { initClient } from './services/client.js';
import { getUsdcBalance } from './services/client.js';
import { initDashboard, appendLog, updateStatus, isDashboardActive } from './ui/dashboard.js';
import { startSniperDetector, stopSniperDetector } from './services/sniperDetector.js';
import { executeSnipe, getActiveSnipes } from './services/sniperExecutor.js';
import { redeemMMPositions } from './services/ctf.js';

// ── Validate config ────────────────────────────────────────────────────────────

try {
    validateMMConfig();
} catch (err) {
    console.error(`Config error: ${err.message}`);
    process.exit(1);
}

if (config.sniperAssets.length === 0) {
    console.error('SNIPER_ASSETS is empty. Set e.g. SNIPER_ASSETS=eth,sol,xrp in .env');
    process.exit(1);
}

// ── Init TUI ──────────────────────────────────────────────────────────────────

initDashboard();
logger.setOutput(appendLog);

// ── Init CLOB client ──────────────────────────────────────────────────────────

try {
    await initClient();
} catch (err) {
    logger.error(`Client init error: ${err.message}`);
    process.exit(1);
}

// ── Status panel ──────────────────────────────────────────────────────────────

async function buildStatusContent() {
    const lines = [];

    // Balance
    let balance = '?';
    if (!config.dryRun) {
        try { balance = (await getUsdcBalance()).toFixed(2); } catch { /* ignore */ }
    } else {
        balance = '{yellow-fg}SIM{/yellow-fg}';
    }
    lines.push('{bold}BALANCE{/bold}');
    lines.push(`  USDC.e: {green-fg}$${balance}{/green-fg}`);
    lines.push('');

    lines.push('{bold}MODE{/bold}');
    lines.push(`  ${config.dryRun ? '{yellow-fg}SIMULATION{/yellow-fg}' : '{green-fg}LIVE{/green-fg}'}`);
    lines.push('');

    lines.push('{bold}SNIPER CONFIG{/bold}');
    lines.push(`  Assets : ${config.sniperAssets.join(', ').toUpperCase()}`);
    lines.push(`  Price  : $${config.sniperPrice} per share`);
    lines.push(`  Shares : ${config.sniperShares} per side`);
    lines.push(`  Cost   : $${(config.sniperPrice * config.sniperShares * 2 * config.sniperAssets.length).toFixed(3)} per slot`);
    lines.push('');

    // Recent snipe orders
    const snipes = getActiveSnipes();
    lines.push(`{bold}SNIPE ORDERS (${snipes.length} total){/bold}`);

    if (snipes.length === 0) {
        lines.push('  {gray-fg}Waiting for next slot...{/gray-fg}');
    } else {
        // Show last 10 orders (most recent first)
        const recent = snipes.slice(-10).reverse();
        for (const s of recent) {
            const payout = s.potentialPayout.toFixed(2);
            lines.push(`  {cyan-fg}${s.asset}{/cyan-fg} ${s.side} @ $${s.price} × ${s.shares}sh | pay $${payout} if win`);
        }
    }

    return '\n' + lines.join('\n');
}

let refreshTimer = null;
let redeemTimer  = null;

function startRefresh() {
    refreshTimer = setInterval(async () => {
        if (!isDashboardActive()) return;
        updateStatus(await buildStatusContent());
    }, 3000);
    buildStatusContent().then(updateStatus);
}

function startRedeemer() {
    redeemMMPositions().catch((err) => logger.error('Sniper redeemer error:', err.message));
    redeemTimer = setInterval(
        () => redeemMMPositions().catch((err) => logger.error('Sniper redeemer error:', err.message)),
        config.redeemInterval,
    );
    logger.info(`Sniper redeemer started — checking every ${config.redeemInterval / 1000}s`);
}

// ── Market handler ────────────────────────────────────────────────────────────

async function handleNewMarket(market) {
    executeSnipe(market).catch((err) =>
        logger.error(`SNIPER execute error (${market.asset}): ${err.message}`)
    );
}

// ── Graceful shutdown ─────────────────────────────────────────────────────────

function shutdown() {
    logger.warn('SNIPER: shutting down...');
    stopSniperDetector();
    if (refreshTimer) clearInterval(refreshTimer);
    if (redeemTimer)  clearInterval(redeemTimer);
    process.exit(0);
}

process.on('SIGINT',  shutdown);
process.on('SIGTERM', shutdown);

// ── Start ─────────────────────────────────────────────────────────────────────

const costPerSlot = (config.sniperPrice * config.sniperShares * 2 * config.sniperAssets.length).toFixed(3);
logger.info(`SNIPER starting — ${config.dryRun ? 'SIMULATION' : 'LIVE'}`);
logger.info(`Assets: ${config.sniperAssets.join(', ').toUpperCase()} | $${config.sniperPrice} × ${config.sniperShares}sh = $${costPerSlot}/slot`);

startRefresh();
startRedeemer();
startSniperDetector(handleNewMarket);