const { getUserData } = require('../Middlewares/watcherMiddleware');
let userData = getUserData();

async function checkUserExistsDiscord(req, res, next) {
    if (!req.user || (!req.user.username && !req.user.id)) {
        return res.status(500).send('Internal Server Error');
    }

    try {
        let users = userData;

        let existingUser;
        if (req.user.username) {
            existingUser = users.find(u => u.name === req.user.username);
        } else if (req.user.id) {
            existingUser = users.find(u => u.id === req.user.id);
        }

        if (existingUser) {
            req.user.id = existingUser.id;
            res.redirect('/dpanel/dashboard');
            return;
        }

        const newUser = {
            id: req.user.id,
            name: req.user.username,
            role: "user"
        };
        users.push(newUser);

        await fs.writeFile(filePath, JSON.stringify(users, null, 2), 'utf8');

        req.user.id = newUser.id;

        return next();
    } catch (error) {
        return next(error);
    }
}

module.exports = { checkUserExistsDiscord };