public async Task <IActionResult> Register(string PrimaEmail, ExtendedRegisterViewModel model, string returnUrl = null)
        {
            ViewData["ReturnUrl"] = returnUrl;
            if (ModelState.IsValid)
            {
                Korisnik korisnik = new Korisnik
                {
                    Ime     = model.Ime,
                    Prezime = model.Prezime,
                    Email   = model.Email,
                    Lozinka = model.Password,
                    TelBroj = model.TelBroj,
                    Oib     = model.Oib
                };

                if (PrimaEmail == "on")
                {
                    korisnik.PrimaEmail = true;
                }
                else
                {
                    korisnik.PrimaEmail = false;
                }
                _context.Korisnik.Add(korisnik);
                _context.SaveChanges();

                var user = new ApplicationUser {
                    UserName = model.Email, Email = model.Email, IdKorisnik = korisnik.Id
                };
                var result = await _userManager.CreateAsync(user, model.Password);

                if (model.Uloga == "N")
                {
                    Narucitelj narucitelj = new Narucitelj
                    {
                        IdKorisnik = korisnik.Id
                    };
                    _context.Narucitelj.Add(narucitelj);

                    await _userManager.AddToRoleAsync(user, "narucitelj");
                }
                else if (model.Uloga == "P")
                {
                    Prijevoznik prijevoznik = new Prijevoznik
                    {
                        IdKorisnik = korisnik.Id
                    };
                    _context.Prijevoznik.Add(prijevoznik);

                    await _userManager.AddToRoleAsync(user, "prijevoznik");
                }
                else if (model.Uloga == "A")
                {
                    await _userManager.AddToRoleAsync(user, "administrator");
                }

                _context.SaveChanges();


                if (result.Succeeded)
                {
                    // For more information on how to enable account confirmation and password reset please visit http://go.microsoft.com/fwlink/?LinkID=532713
                    // Send an email with this link
                    //var code = await _userManager.GenerateEmailConfirmationTokenAsync(user);
                    //var callbackUrl = Url.Action("ConfirmEmail", "Account", new { userId = user.Id, code = code }, protocol: HttpContext.Request.Scheme);
                    //await _emailSender.SendEmailAsync(model.Email, "Confirm your account",
                    //    $"Please confirm your account by clicking this link: <a href='{callbackUrl}'>link</a>");
                    await _signInManager.SignInAsync(user, isPersistent : false);

                    _logger.LogInformation(3, "User created a new account with password.");

                    if (PrimaEmail == "on")
                    {
                        var smtpClient = new SmtpClient
                        {
                            Host        = "smtp.gmail.com",
                            Port        = 587,
                            EnableSsl   = true,
                            Credentials = new NetworkCredential("*****@*****.**", "carryon1")
                        };

                        using (var message = new MailMessage("*****@*****.**", user.Email)
                        {
                            Subject = "Uspješna registracija",
                            Body = "Uspješno ste se registrirali."
                        })
                        {
                            await smtpClient.SendMailAsync(message);
                        }
                    }
                    return(RedirectToLocal(returnUrl));
                }
                AddErrors(result);
            }

            // If we got this far, something failed, redisplay form
            return(View(model));
        }