const db = require('./backend/db-sqlite');
async function fix() {
  // Drop the failed new table first
  try { await db.query('DROP TABLE IF EXISTS payment_plans_new'); } catch(e) {}
  
  // Get current columns
  const info = await db.query("PRAGMA table_info(payment_plans)");
  const cols = info.rows.map(r => r.name);
  console.log('Current payment_plans columns:', cols.join(', '));
  
  // Create new table with all columns + nullable purchase_order_id
  const newCols = [...cols];
  if (!newCols.includes('purchase_order_id')) newCols.push('purchase_order_id');
  
  const colDefs = newCols.map(c => {
    if (c === 'id') return 'id INTEGER PRIMARY KEY AUTOINCREMENT';
    if (c === 'purchase_order_id') return 'purchase_order_id INTEGER DEFAULT 0';
    if (c === 'created_at' || c === 'updated_at') return `${c} DATETIME DEFAULT CURRENT_TIMESTAMP`;
    if (c.includes('amount')) return `${c} REAL DEFAULT 0`;
    return `${c} TEXT DEFAULT ''`;
  });
  
  try {
    await db.query(`CREATE TABLE payment_plans_new (${colDefs.join(', ')})`);
    // Copy data with column names
    const colList = cols.join(', ');
    await db.query(`INSERT INTO payment_plans_new (${colList}) SELECT ${colList} FROM payment_plans`);
    await db.query(`DROP TABLE payment_plans`);
    await db.query(`ALTER TABLE payment_plans_new RENAME TO payment_plans`);
    console.log('OK: payment_plans table fixed');
  } catch(e) {
    console.log('ERR:', e.message.substring(0, 150));
  }
  
  process.exit();
}
fix();