const express = require('express');
const router = express.Router();
const passport = require('passport');
const jwt = require('jsonwebtoken');
const User = require('../models/user');
const config = require('../config/database');


//Register
router.post('/register',(req,res,next) => {
    let newUser = new User({
        name: req.body.name,
        email: req.body.email,
        username: req.body.username,
        password: req.body.password
    });

    User.addUser(newUser, (err)=>{
        if(err){
            res.json({
                success: false,
                msg:'Failed to register user'
            });
        } else{
            res.json({
                success: true,
                msg:'User registered'
            });
        }
    });

});


//Authenticate
router.post('/authenticate',(req,res,next) => {
    const username = req.body.username;
    const password = req.body.password;

    User.getUserByUsername(username, (err, user)=>{
        if(err) throw err;
        if(!user)
            return res.json({
                success: false,
                msg: 'User not found'
            });

        User.comparePassword(password, user.password, (err, isMatch) => {
            if(err) throw err;
            if(isMatch){
                const token = jwt.sign({ data: user },config.secret,{
                    expiresIn: 604800 // 1 week
                });

                res.json({
                    success: true,
                    toke: 'JWT ' + token,
                    user: {
                        id: user._id,
                        name: user.name,
                        username: user.username,
                        email: user.email
                    }
                });
            } else{
                return res.json({
                    success : false,
                    msg: 'Wrong password'
                });
            }

        })

    })
});

//Profile
router.get('/profile', passport.authenticate('jwt', {session:false}),(req,res,next) => {
    res.send({user: req.user});
});

/*//Validate
router.get('/validate',(req,res,next) => {
    res.send('VALIDATE');
})*/

module.exports = router;