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;
let configFile = fs.readFileSync(path.join(__dirname, '../../../data', 'setup.json'), 'utf-8')
let config = JSON.parse(configFile)[0];
const bodyParser = require('body-parser');
const crypto = require('crypto');
const os = require('os');
const { getUserData, getSetupData } = require('../../../Middlewares/watcherMiddleware');

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

/**
 * @swagger
 * /dashboard/getfile?token={token}:
 *   post:
 *     security:
 *       - bearerAuth: []
 *     tags:
 *       - File
 *     summary: Get files and folders in a specific folder
 *     description: This route allows you to delete a specific file for a user. It requires a valid JWT token in the Authorization header.
 *     requestBody:
 *       required: true
 *       content:
 *         application/json:
 *           schema:
 *             type: object
 *             properties:
 *               filename:
 *                 type: string
 *                 description: The name of the file to delete
 *     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:
 *                 status:
 *                   type: string
 *                 message:
 *                   type: string
 *       400:
 *         description: Bad Request
 *         content:
 *           application/json:
 *             schema:
 *               type: object
 *               properties:
 *                 error:
 *                   type: string
 *       401:
 *         description: Unauthorized
 *         content:
 *           application/json:
 *             schema:
 *               type: object
 *               properties:
 *                 message:
 *                   type: string
 *       404:
 *         description: The specified file does not exist
 *         content:
 *           application/json:
 *             schema:
 *               type: object
 *               properties:
 *                 status:
 *                   type: string
 *                 message:
 *                   type: string
 *       500:
 *         description: Internal server error
 *         content:
 *           application/json:
 *             schema:
 *               type: object
 *               properties:
 *                 error:
 *                   type: string
 */

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.post('/', authenticateToken, async (req, res) => {
    const userName = req.userData.name;
    const downloadDir = path.join('cdn-files', userName);

    if (!fs.existsSync(downloadDir)) {
        fs.mkdirSync(downloadDir, { recursive: true });
    }

    try {
        const files = await fs.promises.readdir(downloadDir);

        const fileDetails = files.map(file => {
            const filePath = path.join(downloadDir, file);
            const stats = fs.statSync(filePath);
            const fileType = stats.isDirectory() ? 'folder' : 'file';

            return {
                name: file,
                type: fileType
            };
        });

        res.json({ files: fileDetails });
    } catch (err) {
        console.error('Error reading directory:', err);
        res.status(500).json({ error: err.message });
    }
});

module.exports = router;