/// <summary>
/// Gets the id of the current authenticated user, or logins/registers the current user by the specified parameters.
/// </summary>
/// <remarks>This modifies the ViewData also, if there are errors.</remarks>
/// <param name="signMethod">The sign method to use: login/register.</param>
/// <param name="loginVM">The login view model of the checkout view model.</param>
/// <param name="registerVM">The register view model of the checkout view model.</param>
/// <returns>Returns the user id if authentication succeeded, otherwise null.</returns>
private async Task <int?> GetOrAuthenticateUser(SignMethod?signMethod, CheckoutVM.ConditionalLoginVM loginVM, CheckoutVM.ConditionalRegisterVM registerVM)
{
// Checks if the user is already authenticated:
if (HttpContext.User.Identity.IsAuthenticated)
{
return(HttpContext.User.Identity.GetId().Value);
}
// Otherwise, needs to authenticate the user:
else
{
User user;
if (signMethod == SignMethod.Login)
{
user = await _authenticateService.LoginAsync(loginVM.EmailAddress, loginVM.Password, loginVM.RememberMe);
if (user == null)
{
ViewData["Error_Login"] = "******";
}
}
else if (signMethod == SignMethod.Register)
{
user = await _authenticateService.RegisterAsync(registerVM.FirstName, registerVM.LastName, registerVM.EmailAddress, registerVM.Password, registerVM.SubscribeNewsletter);
}
else
{
throw new ArgumentOutOfRangeException(nameof(signMethod), $"{nameof(signMethod)} is not defined.");
}
if (user != null)
{
return(user.Id);
}
else
{
return(null);
}
}
}
public async Task <JsonResult> CheckEmailAvailability(CheckoutVM.ConditionalRegisterVM registerVM)
{
bool isEmailAvailable = await _users.IsEmailAddressAvailable(registerVM.EmailAddress);
return(Json(isEmailAvailable));
}
