const db = require("../models");
const dev = require("deep-email-validator");
const ROLES = db.ROLES;
const User = db.user;

checkDuplicateUsernameOrEmail = (req, res, next) => {
  // Username
  User.findOne({
    username: req.body.username
  }).exec((err, user) => {
    if (err) {
      res.status(500).send({ message: err });
      return;
    }

    if (user) {
      res.status(400).send({ message: "oof! ce nom d'utilisateur est déjà utilisé" });
      return;
    }

    // Email
    User.findOne({
      email: req.body.email
    }).exec((err, user) => {
      if (err) {
        res.status(500).send({ message: err });
        return;
      }

      if (user) {
        res.status(400).send({ message: "oof! cette addresse courriel est déjà utilisé" });
        return;
      }

      next();
    });
  });
};

checkRolesExisted = (req, res, next) => {
  if (req.body.roles) {
    for (let i = 0; i < req.body.roles.length; i++) {
      if (!ROLES.includes(req.body.roles[i])) {
        res.status(400).send({
          message: `oof! ce role ${req.body.roles[i]} n'existe pas`
        });
        return;
      }
    }
  }

  next();
};

validateEmail = async (req, res, next) => {
  if (req.body.email) {
    const emailRes = await dev.validate({
      email: req.body.email,
      sender: req.body.email,
      validateRegex: true,
      valideMx: true,
      validateTypo: true,
      validateDisposable: true,
      validateSMTP: false,
    })
    console.log((emailRes.valid))
        if (!emailRes.valid) {
        res.status(400).send({
          message: "oof! ton email est pas valide loco"
        });
        return;
      }
  }

  next();
};


checkPassLimit = (req, res, next) => {

  function isUpperCase(str) {
    return str === str.toUpperCase();
  }

  if (req.body.password) {
      if (req.body.password.length <= 8) {
        res.status(400).send({
          message: "oof! ce password ne respecte pas la longueur minimal."
        });
        return;
      }
      else {
        var upper = 0;
        for (let c of req.body.password) {
          if (isUpperCase(c))
          {
            upper = 1;
          }
        }

        if (upper != 1)
        {
          res.status(400).send({
            message: "oof! ce password n'a aucune majuscule."
          });
          return;
        }
      }
  }

  next();
};

const verifySignUp = {
  checkDuplicateUsernameOrEmail,
  checkRolesExisted,
  validateEmail,
  checkPassLimit
};

module.exports = verifySignUp;