CONTINUOUS_DIE_STAMPING_METHOD = "连续模"


def clean_text(value: str | None) -> str:
    return str(value or "").strip()


def is_continuous_die_stamping_method(value: str | None) -> bool:
    return clean_text(value) == CONTINUOUS_DIE_STAMPING_METHOD


def is_continuous_die_product(product) -> bool:
    return bool(product) and is_continuous_die_stamping_method(getattr(product, "stamping_method", None))


def is_continuous_die_item(item) -> bool:
    return is_continuous_die_stamping_method(getattr(item, "stamping_method", None))