var express = require('express');
var router = express.Router();
var utils = require('./utils');
var db = require('./DBManager');
var noteRouter = require('./noteRouter');
var userRouter = require('./userRouter');
var fileRouter = require('./fileRouter');


router.get('/status', (req, res) => {
  var d = new Date();
  res.send({
    Status: "OK",
    Mantra: "KISS - Yo!",
    Time: d.toString()
  });
});

router.use('/note', noteRouter);
router.use('/user', userRouter);
router.use('/file', fileRouter);

router.post('/login', (req, res) => {
  if (!req.body.username || !req.body.password) {
    utils.response_400(res, {
      username: "JhonSnow",
      password: "I-know_nothing"
    });
  } else {
    var query = db.createQuery('User')
      .filter('username', req.body.username)
      .filter('password', req.body.password);

    db.runQuery(query, (err, entities) => {
      if (err || entities.length !== 1) {
        res.send({
          status: "OK",
          user: null
        });
      } else {
        entities = entities.map(utils.convertToUserObj);
        res.send({
          status: "OK",
          user: entities[0]
        });
      }
    });
  }
});

router.post('/register', (req, res) => {
  if (!req.body.username || !req.body.password || !req.body.email) {
    utils.response_400(res, {
      username: "JhonSnow",
      password: "I-know_nothing",
      email: "jhon@nights_watch.com"
    });
  } else {
    var query = db.createQuery('User')
      .filter('username', req.body.username);

    db.runQuery(query, (err, entities) => {
      if (err || entities.length === 1) {
        res.send({
          status: "Error",
          message: "User name exists"
        });
      } else {
        db.save({
          key: db.key('User'),
          data: {
            username: req.body.username,
            password: req.body.password,
            email: req.body.email,
            creation_time: Date.now(),
            avatar: 'http://www.aljazeera.com/mritems/images/site/DefaultAvatar.jpg',
            liked_notes_id: []
          }
        }, function (err, user) {
          if (err) {
            utils.response_500(res, "DB Error");
          } else {
            res.statusCode = 201;
            res.send({
              status: "OK",
              message: "created"
            });
          }
        });
      }
    });
  }
});





module.exports = router;

// // about page route (http://localhost:8080/about)
// router.get('/about', function(req, res) {
//     res.send('im the about page!');
// });