const { Client } = require('ssh2');
const c = new Client();
c.on('ready', () => {
  const cmd = [
    "echo '=== RECENT KB RELATED LOGS ==='",
    "grep -E 'searchKnowledge|Ark KB|rewritten|classifyKnowledge|tryKnowledge|shouldForce|Chat.*User|Chat.*Assistant|基础三合一|三合一|胡辣汤' /var/log/bigwo/server-out.log | tail -80",
    "echo ''",
    "echo '=== RECENT CHAT LOGS ==='",
    "grep -E '\\[Chat\\]' /var/log/bigwo/server-out.log | tail -30",
    "echo ''",
    "echo '=== RECENT ERRORS ==='",
    "grep -iE 'error|failed|timeout' /var/log/bigwo/server-out.log | tail -20",
  ].join(' && ');
  c.exec(cmd, (err, s) => {
    if (err) { console.error(err); c.end(); return; }
    let o = '';
    s.on('data', (d) => (o += d));
    s.stderr.on('data', (d) => (o += d));
    s.on('close', () => { console.log(o); c.end(); });
  });
}).connect({ host: '119.45.10.34', port: 22, username: 'root', password: '#xyzh%CS#2512@28' });