public Result CreateUser(User user)
{
FileContent content = _persister.ReadFileContent(DbConstants.userFileName);
Maybe <FileOperation> createUserOperation = _userDatabaseManager.AddUser(content, user);
if (createUserOperation.HasValue)
{
_persister.ApplyChanges(createUserOperation.Value);
return(Result.Ok());
}
return(Result.Fail("User already exists."));
}