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

const pool = new Pool({
    host: process.env.DB_HOST,
    port: process.env.DB_PORT,
    database: process.env.DB_NAME,
    user: process.env.DB_USER,
    password: process.env.DB_PASSWORD,
    max: 20,
    idleTimeoutMillis: 30000,
    connectionTimeoutMillis: 2000,
});

pool.on('error', (err) => {
    console.error('Erro inesperado no PostgreSQL:', err);
});

const query = async (text, params) => {
    const start = Date.now();
    try {
        const res = await pool.query(text, params);
        const duration = Date.now() - start;
        console.log('Query:', { text: text.substring(0, 80), duration, rows: res.rowCount });
        return res;
    } catch (error) {
        console.error('Erro na query:', error);
        throw error;
    }
};

module.exports = { query, pool };