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());

/**
 * @swagger
 * /dashboard/newfolder?token={token}:
 *   post:
 *     security:
 *       - bearerAuth: []
 *     tags:
 *       - Folder
 *     summary: Create a new folder
 *     description: This route allows you to create a new folder. It requires a valid JWT token in the Authorization header.
 *     requestBody:
 *       required: true
 *       content:
 *         application/json:
 *           schema:
 *             type: object
 *             properties:
 *               folderName:
 *                 type: string
 *                 description: The name of the new folder
 *     parameters:
 *       - in: header
 *         name: Authorization
 *         required: true
 *         schema:
 *           type: string
 *         description: The JWT token of your account to have access
 *     responses:
 *       200:
 *         description: Success
 *         content:
 *           application/json:
 *             schema:
 *               type: object
 *               properties:
 *                 message:
 *                   type: string
 *       400:
 *         description: Bad Request
 *         content:
 *           application/json:
 *             schema:
 *               type: object
 *               properties:
 *                 message:
 *                   type: string
 *       401:
 *         description: Unauthorized
 *         content:
 *           application/json:
 *             schema:
 *               type: object
 *               properties:
 *                 message:
 *                   type: string
 *       500:
 *         description: Error creating the folder
 *         content:
 *           application/json:
 *             schema:
 *               type: object
 *               properties:
 *                 message:
 *                   type: string
 *                 error:
 *                   type: string
 */

function authenticateToken(req, res, next) {
  authMiddleware(req, res, function(err) {
      if (!err) {
          return 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) {
          return res.status(401).json({ message: 'Unauthorized' });
      }

      fs.readFile(path.join(__dirname, '../../../data', 'user.jso,'), '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 {

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


        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)) {
            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 });
            }
            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;