public async Task <OperationResult> ChangeEmail(string userId, string email, string password)
{
User user = await userManager.FindByIdAsync(userId);
if (!await userManager.CheckPasswordAsync(user, password))
{
return(OperationResult.Invalid("Invalid password"));
}
if (user.Email == email)
{
return(OperationResult.Invalid("The new e-mail address cannot be the same as your current e-mail."));
}
await emailConfirmationService.ProcessEmailChange(user, email);
return(OperationResult.Valid());
}