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 User { 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 User { UserName = model.UserName, Email = model.Email, FirstName = model.FirstName, LastName = model.LastName};
                
                var result = await UserManager.CreateAsync(user, model.Password);
                if (result.Succeeded)
                {
                    var dbContext = new Issues.Data.IssuesDbContext();
                    var role = user.UserName == "root" ? "Admin" : "Regular";
                    var newRole = dbContext.Roles.FirstOrDefault(r => r.Name == role);
                    if(newRole == null)
                    {
                        newRole = new IdentityRole(role);
                        dbContext.Roles.Add(newRole);
                        dbContext.SaveChanges();
                    }
                    var identityUserRole = new IdentityUserRole();
                    identityUserRole.UserId = user.Id;
                    identityUserRole.RoleId = newRole.Id;
                    newRole.Users.Add(identityUserRole);
                    dbContext.SaveChanges();
                    await SignInManager.SignInAsync(user, isPersistent:false, rememberBrowser:false);
                   
                    return RedirectToAction("Index", "Home");
                }
                AddErrors(result);
            }

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