public ActionResult Login(LoginViewModel loginViewModel, string redirectUrl)
        {
            if (!ModelState.IsValid)
            {
                return(View(loginViewModel));
            }

            // This doesn't count login failures towards account lockout
            // To enable password failures to trigger account lockout, change to shouldLockout: true
            var result = _signInService.PasswordSignIn(loginViewModel);

            switch (result)
            {
            case SignInStatus.Success:
                return(RedirectToAction("Index", "Home"));

            case SignInStatus.LockedOut:
                return(View("_Lockout"));

            case SignInStatus.RequiresVerification:
                return(RedirectToAction("SendCode", new { ReturnUrl = redirectUrl, RememberMe = loginViewModel.RememberMe }));

            case SignInStatus.Failure:
            default:
                ModelState.AddModelError("", "Invalid login attempt.");
                return(View(loginViewModel));
            }
        }