const passport = require("passport");
const path = require("path");
const User = require(path.join(__dirname + "/../schemas/User"));
const router = require("express").Router();

const register = (req, res, next) => {
  User.register(
    new User({ username: req.body.username }),
    req.body.password,
    function(err) {
      if (err) {
        if (err.name == "UserExistsError")
          res.status(409).send({ success: false, message: err.message })
        else if (err.name == "MissingUsernameError" || err.name == "MissingPasswordError")
          res.status(400).send({ success: false, message: err.message })
        return next(err);
      }

      return res.status(200).send({ message: "Bruker registrert. Velkommen " + req.body.username, success: true })
     }
  );
};

const login = (req, res, next) => {
  passport.authenticate("local", function(err, user, info) {
    if (err) {
      if (err.name == "MissingUsernameError" || err.name == "MissingPasswordError")
        return res.status(400).send({ message: err.message, success: false })
      return next(err);
    }

    if (!user) return res.status(404).send({ message: "Incorrect username or password", success: false })

    req.logIn(user, (err) => {
      if (err) { return next(err) }

      return res.status(200).send({ message: "Velkommen " + user.username, success: true })
    })
  })(req, res, next);
};

const logout = (req, res) => {
  req.logout();
  res.redirect("/");
};

module.exports = {
  register,
  login,
  logout
};