text: const express = require('express');
  const router = express.Router();
  const gravatar = require('gravatar');
  const bcrypt = require('bcryptjs');
  const jwt = require('jsonwebtoken');
  const config = require('config');
  const { check, validationResult } = require('express-validator');
  const normalize = require('normalize-url');
  
  const User = require('../../models/User');
  
  // @route    POST api/users
  // @desc     Register user
  // @access   Public
  router.post(
    '/',
    check('name', 'Name is required').notEmpty(),
    check('email', 'Please include a valid email').isEmail(),
    check(
      'password',
      'Please enter a password with 6 or more characters'
    ).isLength({ min: 6 }),
    async (req, res) => {
      const errors = validationResult(req);
      if (!errors.isEmpty()) {
        return res.status(400).json({ errors: errors.array() });
      }
  
      const { name, email, password } = req.body;
  
      try {
        let user = await User.findOne({ email });
  
        if (user) {
          return res
            .status(400)
            .json({ errors: [{ msg: 'User already exists' }] });
        }
  
        const avatar = normalize(
          gravatar.url(email, {
            s: '200',
            r: 'pg',
            d: 'mm'
          }),
          { forceHttps: true }
        );
  
        user = new User({
          name,
          email,
          avatar,
          password
        });
  
        const salt = await bcrypt.genSalt(10);
  
        user.password = await bcrypt.hash(password, salt);
  
        await user.save();
  
        const payload = {
          user: {
            id: user.id
          }
        };
  
        jwt.sign(
          payload,
          config.get('jwtSecret'),
          { expiresIn: '5 days' },
          (err, token) => {
            if (err) throw err;
            res.json({ token });
          }
        );
      } catch (err) {
        console.error(err.message);
        res.status(500).send('Server error');
      }
    }
  );
  
  module.exports = router;
  