const { Pool } = require('pg');
require('dotenv').config();

const pool = new Pool({
  connectionString: process.env.DATABASE_URL || 'postgres://postgres:csh%402018@localhost:5433/ai_pharmacy'
});

async function run() {
  try {
    await pool.query('ALTER TABLE stock_movements ADD COLUMN IF NOT EXISTS reason_code VARCHAR(100)');
    await pool.query('ALTER TABLE stock_movements ADD COLUMN IF NOT EXISTS notes TEXT');
    await pool.query('ALTER TABLE products ADD COLUMN IF NOT EXISTS hsn_code VARCHAR(20)');
    await pool.query('ALTER TABLE products ADD COLUMN IF NOT EXISTS tenant_id VARCHAR(50)');
    await pool.query('ALTER TABLE drugs ADD COLUMN IF NOT EXISTS tenant_id VARCHAR(50)');
    console.log('Successfully added missing database columns.');
  } catch (err) {
    console.error('Error altering database:', err);
  } finally {
    pool.end();
  }
}
run();