const { Pool } = require('pg');

const pool = new Pool({
  connectionString: 'postgresql://edumanager:EduManager2026!Seguro@150.230.87.131:5432/edumanager'
});

async function run() {
  const client = await pool.connect();
  try {
    const res = await client.query(`
      DELETE FROM frequencias a
      WHERE a.tipo = 'absence' AND a.id LIKE 'auto-abs-%'
      AND NOT EXISTS (
        SELECT 1 FROM school_data sd
        WHERE jsonb_path_exists(sd.data, ('$.attendance[*] ? (@.id == "' || a.id || '")')::jsonpath)
      ) RETURNING id;
    `);
    console.log(`Deleted ${res.rowCount} absences that are in SQL but NOT in JSON.`);
  } catch (err) {
    console.error(err);
  } finally {
    client.release();
    pool.end();
  }
}

run();