using System.Collections.Immutable; namespace Phantom.Controller.Services.Users; public abstract record AddUserError { private AddUserError() {} public sealed record NameIsEmpty : AddUserError; public sealed record NameIsTooLong(int MaximumLength) : AddUserError; public sealed record NameAlreadyExists : AddUserError; public sealed record PasswordIsInvalid(ImmutableArray<PasswordRequirementViolation> Violations) : AddUserError; public sealed record UnknownError : AddUserError; }