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

const pool = new Pool({
  connectionString: process.env.DATABASE_URL
});

async function main() {
  try {
    const tablesRes = await pool.query(`
      SELECT table_name 
      FROM information_schema.tables 
      WHERE table_schema = 'escola'
      ORDER BY table_name;
    `);
    
    console.log('--- TABELAS NO ESQUEMA escola ---');
    for (const row of tablesRes.rows) {
      console.log(`\nTabela: ${row.table_name}`);
      const columnsRes = await pool.query(`
        SELECT column_name, data_type, is_nullable, column_default
        FROM information_schema.columns
        WHERE table_schema = 'escola' AND table_name = $1
        ORDER BY ordinal_position;
      `, [row.table_name]);
      
      for (const col of columnsRes.rows) {
        console.log(`  - ${col.column_name}: ${col.data_type} (null: ${col.is_nullable}, default: ${col.column_default})`);
      }
    }
  } catch (err) {
    console.error('Erro ao ler tabelas:', err);
  } finally {
    await pool.end();
  }
}

main();