import { drizzle } from 'drizzle-orm/node-postgres';
import pg from 'pg';
const { Pool } = pg;
let singletonPool = null;
export const getPool = () => singletonPool;
export const getDb = () => {
    const databaseUrl = process.env.DATABASE_URL;
    if (!databaseUrl) {
        throw new Error('DATABASE_URL is required');
    }
    if (!singletonPool) {
        singletonPool = new Pool({
            connectionString: databaseUrl,
            max: 10,
            idleTimeoutMillis: 30_000,
            connectionTimeoutMillis: 5_000
        });
        singletonPool.on('error', (err) => {
            console.error('[db] Pool background error', err.message);
        });
    }
    return drizzle(singletonPool);
};