export default function handler(req, res) {
    // const sqlite3 = require('sqlite3').verbose();
  
    console.log(req.body)
const sqlite3 = require('sqlite3');
const argon2 = require('argon2');
const jwt = require('jsonwebtoken');

// Connect to the SQLite database
const db = new sqlite3.Database('your_database.db');

// Fetch the user record
const username = 'example_user';
const sql = 'SELECT password_hash FROM user_table WHERE username = ?';
db.get(sql, [username], async (err, userRecord) => {
  if (err) {
    console.error(err);
    return;
  }

  if (userRecord) {
    const storedHash = userRecord.password_hash;
    const providedPassword = 'example_password';

    try {
      // Verify the provided password with the stored hash
      const isPasswordValid = await argon2.verify(storedHash, providedPassword);

      if (isPasswordValid) {
        // Passwords match, generate JWT token
        const secretKey = 'your_secret_key';
        const tokenPayload = { username: username };
        const jwtToken = jwt.sign(tokenPayload, secretKey, { algorithm: 'HS256' });

        // Return the JWT token
        console.log(jwtToken);
      } else {
        console.log('Invalid password');
      }
    } catch (err) {
      console.error(err);
    }
  } else {
    console.log('User not found');
  }

  // Close the database connection
  db.close();
});

res.status(200).json({ name: 'John Doe' });
}