/**
 * Controllers: Users
 */

const jwt = require("jsonwebtoken");
const { users } = require("../models");
const { comparePassword } = require("../utils");

/**
 * Save
 * @param {*} req
 * @param {*} res
 * @param {*} next
 */
const register = async (req, res, next) => {
  try {
    await users.register(req.body);
  } catch (error) {
    return res.status(400).json({ error: error.message });
  }

  let user;
  try {
    user = await users.getByEmail(req.body.email);
  } catch (error) {
    console.log(error);
    return next(error, null);
  }

  const token = jwt.sign(user, process.env.tokenSecret, {
    expiresIn: 604800, // 1 week
  });

  res.json({ message: "Authentication successful", token });
};

/**
 * Sign a user in
 * @param {*} req
 * @param {*} res
 * @param {*} next
 */
const login = async (req, res, next) => {
  let user;
  try {
    user = await users.getByEmail(req.body.email);
  } catch (error) {
    return done(error, null);
  }

  if (!user) {
    return res
      .status(404)
      .send({ error: "Authentication failed. User not found." });
  }

  const isCorrect = comparePassword(req.body.password, user.password);
  if (!isCorrect) {
    return res
      .status(401)
      .send({ error: "Authentication failed. Wrong password." });
  }

  const token = jwt.sign(user, process.env.tokenSecret, {
    expiresIn: 604800, // 1 week
  });

  res.json({ message: "Authentication successful", token });
};

/**
 * Get a user
 * @param {*} req
 * @param {*} res
 * @param {*} next
 */
const get = async (req, res, next) => {
  const user = users.convertToPublicFormat(req.user);
  res.json({ user });
};

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