const express = require('express');
const router = express.Router();

var { User } = require('../models/user');

const _ = require('lodash');

var { authenticate } = require('../middleware/authenticate');


// POST /users
router.post('/', (req, res) => {
  console.log("POST /users");
  var body = _.pick(req.body, ['email', 'password', 'username', 'idapp', 'keyappid', 'lang']);
  var user = new User(body);

  // console.log("LANG PASSATO = " + user.lang);
  // console.log("IDAPP = " + user.idapp);

  user.linkreg = reg.getlinkregByEmail(body.email, body.username);
  user.verified_email = false;

  user.save().then(() => {
    User.findByUsername(user.username)
      .then((usertrovato) => {
        //console.log("USERNAME : " + user.username);
        //console.log("TROVATO USERNAME ? " + usertrovato);
        if (usertrovato !== null) {
          //console.log("Non esiste ancora");
          // Non esiste ancora, allora genero il TOKEN !
          return user.generateAuthToken();
        } else {
          //console.log("Esiste già! Quindi non creo lo user.");
          // Esiste già! Quindi non creo lo user.
          res.status(11100).send();
          return 0;
        }
      }).then((token) => {
      // passo il token in x-auth
      //console.log("USER");
      //console.log(user);
      console.log("TOKEN: ");
      console.log(token);
      res.header('x-auth', token).send(user);

      console.log("LINKREG = " + user.linkreg);
      // Invia un'email all'utente
      sendemail.sendEmail_Registration(getlang(res), user.email, user.username, user.idapp, user.linkreg);
    });
  }).catch((e) => {
    res.status(400).send(e);
  })
});

router.get('/:username', (req, res) => {
  var username = req.params.username;

  User.findByUsername(username).then((user) => {
    if (!user) {
      return res.status(404).send();
    }
    res.status(200).send();
  }).catch((e) => {
    res.status(400).send();
  });
});


router.post('/login', (req, res) => {
  var body = _.pick(req.body, ['username', 'password', 'idapp', 'keyappid', 'lang']);
  var user = new User(body);

  console.log("user: " + user.username + " pwd = " + user.password);

  if (body.keyappid !== process.env.KEY_APP_ID)
  // Se non faccio la richesa con la IDAPP giusta, allora esco!
    return res.status(400).send();


  User.findByCredentials(user.username, user.password)
    .then((user) => {
      console.log("CREDENZIALI ! ");
      if (!user) {
        console.log("NOT FOUND !");
        res.status(404).send({ code: server_constants.RIS_CODE_LOGIN_ERR });
      } else {
        return user.generateAuthToken().then((token) => {
          var usertosend = User();
          usertosend.username = user.username;
          usertosend.email = user.email;
          usertosend.userId = user._id.toHexString();
          usertosend.verified_email = user.verified_email;

          // console.log("user.verified_email:" + user.verified_email);
          // console.log("usertosend.userId", usertosend.userId);

          // console.log("usertosend:");
          // console.log(usertosend);
          res.header('x-auth', token).send(usertosend);
          // console.log("TROVATOOO!");
        });
      }
    }).catch((e) => {
    console.log("ERR: " + e);
    res.status(400).send({ code: server_constants.RIS_CODE_LOGIN_ERR_GENERIC });
  });
});

router.delete('/me/token', authenticate, (req, res) => {
  console.log("TOKENREM = " + req.token);
  req.user.removeToken(req.token).then(() => {
    res.status(200).send();
  }, () => {
    res.status(400).send();
  });
});

module.exports = router;