var express = require('express');
var router = express.Router();
var User = require('../models/user');


router.get('/', function(req, res, next) {
    console.log('login request');

    res.render('login');
});

//login
router.post('/', function(req, res, next) {
    var username = req.body.username;
    var password = req.body.password;
    var isUser = checkuser(username, password);
    if (!isUser) {
        createuser(username, password);
    }
    req.session.user_id = username;
    res.send({
        redirect: '/calendars'
    });
});


var checkuser = function(username, password) {
    User.findOne({username: username}, 'username password', function(err, user) {
        if (user) {
            return true;
        } else {
            return false;
        }
    });
}

var createuser = function(username, password, callback) {
    var user = new User({
        _id: mongoose.Types.ObjectId(),
        username: username,
        password: password,
        following: [],
        created_at: new Date()
    });
    user.save( function(err, model) {
        if (err) throw new Error(err);
        console.log(model);
        if (callback) {
            callback();
        }
    });
}

module.exports = router;