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

router.post('/upsert', (req, res) => {
  if (!req.body || !req.body.id) {
    utils.response_400(res, {
      password: "TheKingOfTheN0rth_65bc",
      email: "jhon@nights_watch.com",
      avatar: "path/to/avatar",
      id: 123
    });
  } else {
    var key = db.key(['User', Number(req.body.id)]);
    db.get(key, (err, entity) => {
      if (err) {
        utils.response_500(res, "DB Error");
      } else {
        entity.data.email = req.body.email || entity.data.email;
        entity.data.avatar = req.body.avatar || entity.data.avatar;
        entity.data.password = req.body.password || entity.data.password;
        db.save(entity, (err, _resp) => {
          if (err) {
            utils.response_500(res, "DB Error");
          } else {
            if (!entity) {
              utils.response_400(res, {
                password: "TheKingOfTheN0rth_65bc",
                email: "jhon@nights_watch.com",
                avatar: "path/to/avatar",
                id: 123
              }, "id not valid - No User with that ID");
            } else {
              res.send({
                status: "OK",
                user: utils.convertToUserObj(entity)
              });
            }
          }
        });
      }
    });
  }
});

module.exports = router;