const { Client } = require('pg');
const fs = require('fs');
const path = require('path');

const client = new Client({
  host: '192.168.110.252',
  port: 15432,
  database: 'postgresql',
  user: 'postgresql',
  password: 'Jchl1528',
});

async function main() {
  await client.connect();
  await client.query('SET search_path TO healthlink_his');

  // Get all department names
  const res = await client.query(
    "SELECT DISTINCT dept_name FROM sys_dept WHERE dept_name IS NOT NULL AND dept_name != '' ORDER BY dept_name"
  );
  const names = res.rows.map(r => r.dept_name);
  fs.writeFileSync(path.join(__dirname, 'dept_names.json'), JSON.stringify(names, null, 2), 'utf8');
  console.log('Total departments:', names.length);
  names.forEach(n => console.log(n));

  await client.end();
}

main().catch(e => { console.error(e.message); process.exit(1); });