package meta

func ReadStructGeneric(r Reader, createStruct StructFactory, field string) (Struct, error) {
	if err := r.BeginContainer(field); err != nil {
		return nil, err
	}

	var classId uint32
	if err := r.ReadUint32(&classId, ""); err != nil {
		return nil, err
	}

	s, err := createStruct(classId)
	if err != nil {
		return nil, err
	}

	if err := s.Read(r); err != nil {
		return nil, err
	}

	if err := r.EndContainer(); err != nil {
		return nil, err
	}

	return s, nil
}

func WriteStructGeneric(w Writer, s Struct, field string) error {
	if err := w.BeginCollection(2, field); err != nil {
		return err
	}
	if err := w.WriteUint32(s.ClassId(), ""); err != nil {
		return err
	}
	if err := s.Write(w); err != nil {
		return err
	}
	return w.EndCollection()
}