import { Router } from "express";
import jwt from 'jsonwebtoken';
import Database from "../db/database";
import User from "../types/User";

const db = new Database();
const router = Router();

router.post('/login', async (req, res) => {
    const { username, password } = req.body;

    const user = (await db.query('SELECT * FROM users WHERE username = ? AND password = ?', [username, password]))[0] as User | undefined;

    if (user) {
        const accessToken = jwt.sign({ userId: user.userId }, process.env.ACCESS_TOKEN_SECRET ?? "", { expiresIn: '7d' });

        res.json({
            code: 200,
            accessToken
        });
    } else {
        res.status(401).json({ code: 401, error: 'Username or password incorrect' });
    }
});

router.post('/register', async (req, res) => {
    const { username, email, password } = req.body;

    const user = (await db.query('SELECT * FROM users WHERE username = ? OR email = ?', [username, email]))[0] as User | undefined;

    if (user) {
        return res.status(409).json({ code: 409, error: 'Username already exists' });
    }

    await db.query('INSERT INTO users VALUES (NULL, ?, ?, ?, ?, ?, ?)', [username, password, email, 0, 0, new Date()]);

    res.status(201).json({ code: 201, message: 'User created' });
});

router.get('/users', async (req, res) => {
    const users = await db.query('SELECT * FROM users', []);

    res.json({ code: 200, users });
});

export default router;