const fs = require('fs');
const { logger, logRequestInfo, ErrorLogger, authLogger } = require('../config/logs');

const authMiddleware = async (req, res, next) => {
    if (req.isAuthenticated() || (req.user && req.user.name)) {
        const data = await fs.promises.readFile('user.json', 'utf8');
        const users = JSON.parse(data);
        const user = users.find(user => user.name === req.user.name);

        if (!user) {
            authLogger.info('User is not authenticated and user name is not set');
            return res.redirect('/auth/login');
        }

        if (!req.session.user) {
            authLogger.info('User connection attempt in progress, verification in progress...');
            authLogger.info(`Login successfully completed, logged in user is: id=${user.id}, name=${user.name}, role=${user.role}, IP: ${req.ip}, User Agent: ${req.headers['user-agent']}`);
        }

        res.locals.user = user;
        req.session.user = user;
        req.userData = user;
        return next();
    } else {
        authLogger.info(`Authentication failed for IP: ${req.ip}, User Agent: ${req.headers['user-agent']}. Redirecting to login.`);
        res.redirect('/auth/login');
    }
};

module.exports = authMiddleware;