1#!/usr/bin/env node
2// trading-signal CLI — self-contained, zero-dep, Node >= 22
3// Usage: node cli.mjs <command> '<json_params>'
4//
5// Commands:
6//   smart-money  POST  on-chain Smart Money trading signals (BSC + Solana)
7 
8// ---- inline HTTP helper (self-contained, zero dependency) ----
9const TIMEOUT_MS = 10_000;
10const UA = { 'Accept-Encoding': 'identity', 'User-Agent': 'binance-web3/2.0 (Skill)' };
11 
12const qs = (p) => Object.entries(p)
13  .filter(([, v]) => v != null)
14  .map(([k, v]) => `${encodeURIComponent(k)}=${encodeURIComponent(v)}`)
15  .join('&');
16 
17async function call({ url, method = 'GET', body, headers = {} }) {
18  const ctrl = new AbortController();
19  const timer = setTimeout(() => ctrl.abort(), TIMEOUT_MS);
20  const opts = { method, headers: { ...UA, ...headers }, signal: ctrl.signal };
21  if (method === 'POST') { opts.headers['content-type'] = 'application/json'; opts.body = JSON.stringify(body || {}); }
22  let res;
23  try { res = await fetch(url, opts); }
24  catch { clearTimeout(timer); throw Object.assign(new Error('Network request failed'), { exitCode: 3 }); }
25  clearTimeout(timer);
26  const data = await res.json();
27  if (res.status >= 400) throw Object.assign(new Error(`HTTP ${res.status}`), { exitCode: 1, body: data });
28  return data;
29}
30 
31// ---- per-command supported chains (client-side fail-fast) ----
32const CHAINS = {
33  'smart-money': new Set(['56', 'CT_501']),
34};
35 
36function validateChainId(cmd, chainId) {
37  const allowed = CHAINS[cmd];
38  if (!allowed) return;
39  const id = String(chainId ?? '');
40  if (!allowed.has(id)) {
41    const supported = [...allowed].map((c) => `"${c}"`).join(', ');
42    throw Object.assign(
43      new Error(`${cmd}: unsupported chainId "${chainId}". Supported: ${supported}`),
44      { exitCode: 1 },
45    );
46  }
47}
48 
49// ---- commands: (params) => { url, method?, body?, headers? } ----
50const COMMANDS = {
51  'smart-money': (p) => {
52    validateChainId('smart-money', p.chainId);
53    return {
54      url: 'https://web3.binance.com/bapi/defi/v1/public/wallet-direct/buw/wallet/web/signal/smart-money/ai',
55      method: 'POST',
56      body: p,
57    };
58  },
59};
60 
61// ---- exports (for unit testing; direct execution still works — see dispatch below) ----
62export { COMMANDS, call, qs, UA, TIMEOUT_MS, CHAINS, validateChainId };
63 
64// ---- CLI dispatch (only runs when executed directly, not when imported) ----
65if (import.meta.url === `file://${process.argv[1]}`) {
66  const [cmd, paramsStr] = process.argv.slice(2);
67 
68  if (!cmd || cmd === '--help' || cmd === '-h') {
69    console.log("Usage: node cli.mjs <command> '<json_params>'\n\nCommands:");
70    for (const name of Object.keys(COMMANDS)) console.log(`  ${name}`);
71    process.exit(0);
72  }
73 
74  const builder = COMMANDS[cmd];
75  if (!builder) { console.error(`Unknown command: ${cmd}\nRun with --help to see available commands.`); process.exit(1); }
76 
77  let params = {};
78  if (paramsStr) {
79    try { params = JSON.parse(paramsStr); }
80    catch { console.error('Invalid JSON params'); process.exit(1); }
81  }
82 
83  try {
84    const result = await call(builder(params));
85    console.log(JSON.stringify(result, null, 2));
86  } catch (err) {
87    console.error(err.message);
88    if (err.body) console.log(JSON.stringify(err.body, null, 2));
89    process.exit(err.exitCode || 1);
90  }
91}
92