public async Task<ActionResult> Login(LoginViewModel model, string returnUrl = "/home/index")
        {
            if (!ModelState.IsValid)
            {
                return View(model);
            }

            //Check for user by UserName and Email 
            var user = new ApplicationUser();
            if (model.LoginCredential.ToLowerInvariant().Contains('@'))
            {
                user = await UserManager.FindByEmailAsync(model.LoginCredential);
            }
            else
            {
                user = await UserManager.FindByNameAsync(model.LoginCredential);
            }

            if (user == null)
            {
                ModelState.AddModelError("", "The user you requested could not be found");
                return View(model);
            }

            // This doesn't count login failures towards account lockout
            // To enable password failures to trigger account lockout, change to shouldLockout: true
            var result = await SignInManager.PasswordSignInAsync(user.UserName, model.Password, 
                model.RememberMe, shouldLockout: false);

            switch (result)
            {
                case SignInStatus.Success:
                    return RedirectToLocal(returnUrl);                   
                case SignInStatus.LockedOut:
                    return View("Lockout");
                case SignInStatus.RequiresVerification:
                    return RedirectToAction("SendCode", "Account", new {
                        ReturnUrl = returnUrl,
                        RememberMe = model.RememberMe
                    });
                case SignInStatus.Failure:
                default:
                    ModelState.AddModelError("", "Invalid login attempt");
                    return View(model);
            }
        }
        public async Task<ActionResult> ExternalLoginConfirmation(ExternalLoginConfirmationViewModel model, string returnUrl)
        {
            if (User.Identity.IsAuthenticated)
            {
                return RedirectToAction("Index", "Manage");
            }

            if (ModelState.IsValid)
            {
                // Get the information about the user from the external login provider
                var info = await AuthenticationManager.GetExternalLoginInfoAsync();
                if (info == null)
                {
                    return View("ExternalLoginFailure");
                }
                var user = new ApplicationUser { UserName = model.Email, Email = model.Email };
                var result = await UserManager.CreateAsync(user);
                if (result.Succeeded)
                {
                    result = await UserManager.AddLoginAsync(user.Id, info.Login);
                    if (result.Succeeded)
                    {
                        await SignInManager.SignInAsync(user, isPersistent: false, rememberBrowser: false);
                        return RedirectToLocal(returnUrl);
                    }
                }
                AddErrors(result);
            }

            ViewBag.ReturnUrl = returnUrl;
            return View(model);
        }
        public async Task<ActionResult> Register(RegisterViewModel model)
        {
            if (ModelState.IsValid)
            {
                var user = new ApplicationUser
                {
                    UserName = model.UserName,
                    Email = model.Email
                };

                var result = await UserManager.CreateAsync(user, model.Password);
                if (result.Succeeded)
                {
                    await SignInManager.SignInAsync(user, isPersistent:false, rememberBrowser:false);

                    // For more information on how to enable account confirmation and password 
                    //reset please visit http://go.microsoft.com/fwlink/?LinkID=320771
                    // Send an email with this link
                    // string code = await UserManager.GenerateEmailConfirmationTokenAsync(user.Id);
                    // var callbackUrl = Url.Action("ConfirmEmail", "Account", new { userId = user.Id, code = code }, protocol: Request.Url.Scheme);
                    // await UserManager.SendEmailAsync(user.Id, "Confirm your account", "Please confirm your account by clicking <a href=\"" + callbackUrl + "\">here</a>");

                    //create a new chef
                    _chefService.CreateChef(user.Id, user.UserName);
                    return RedirectToAction("Index", "Home");
                }
                AddErrors(result);
            }

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