const express = require('express');
const fs = require('fs');
const path = require('path');
const router = express.Router();
const fileUpload = require('express-fileupload');
const authMiddleware = require('../../../Middlewares/authMiddleware');
const { loggers } = require('winston');
const ncp = require('ncp').ncp;
const configFile = fs.readFileSync(path.join(__dirname, '../../../data', 'setup.json'), 'utf-8')
const config = JSON.parse(configFile);
const bodyParser = require('body-parser');
const crypto = require('crypto');
const os = require('os');
const { getUserData, getSetupData } = require('../../../Middlewares/watcherMiddleware');
const { logger, logRequestInfo, ErrorLogger, authLogger } = require('../../../config/logs');

let setupData = getSetupData();
let userData = getUserData();
router.use(bodyParser.json());

function authenticateToken(req, res, next) {
    let token = null;
    const authHeader = req.headers['authorization'];
  
    if (authHeader) {
      token = authHeader.split(' ')[1];
    } else if (req.query.token) {
      token = req.query.token;
    }
  
    if (token == null) {
      if (req.user) {
        return next();
      } else {
        return res.status(401).json({ message: 'Unauthorized' });
      }
    }
  
    fs.readFile(path.join(__dirname, '../../../data', 'user.json'), 'utf8', (err, data) => {
      if (err) {
        console.error('Error reading user.json:', err);
        return res.status(401).json({ message: 'Unauthorized' });
      }
  
      const users = JSON.parse(data);
  
      const user = users.find(u => u.token === token);
  
      if (user) {
        req.user = user;
        req.userData = user;
        next();
      } else {
        return res.status(401).json({ message: 'Unauthorized' });
      }
    });
}

router.get('/', (req, res) => {
    res.status(400).json({ error: 'Bad Request. The request cannot be fulfilled due to bad syntax or missing parameters.' });
});

router.post('/', authenticateToken, (req, res) => {
    try {
        logger.info('Received POST request to create a new folder.');

        const userId = req.userData.name;
        let { folderName } = req.body;

        logger.info('Received folderName:', folderName);

        if (!folderName || typeof folderName !== 'string') {
            ErrorLogger.error('Invalid folderName:', folderName);
            return res.status(400).json({ message: 'Folder name cannot be empty.' });
        }

        folderName = path.basename(folderName.trim());

        if (!folderName) {
            return res.status(400).json({ message: 'Folder name cannot be empty.' });
        }

        const folderPath = path.join('cdn-files', userId, folderName);

        if (fs.existsSync(folderPath)) {
            logger.info('Folder already exists:', folderPath);
            return res.status(400).json({ message: 'Folder already exists.' });
        }

        fs.mkdir(folderPath, (err) => {
            if (err) {
                ErrorLogger.error(err);
                return res.status(500).json({ message: 'Error creating folder.', error: err });
            }
            logger.info('Folder created successfully:', folderPath);
            res.status(200).json({ message: 'Folder created successfully.' });
        });
    } catch (error) {
        ErrorLogger.error('Error creating folder:', error);
        return res.status(500).json({ message: 'Error creating folder.', error: error });
    }
});

module.exports = router;