import re


MISC_PROCESS_NAME = "杂活"


def normalize_process_name(value: str | None) -> str:
    text = str(value or "").strip()
    if text == MISC_PROCESS_NAME:
        return MISC_PROCESS_NAME
    if not re.fullmatch(r"\d+", text):
        raise ValueError("工序只能填写正整数，或填写杂活")
    number = int(text)
    if number <= 0:
        raise ValueError("工序只能填写正整数，或填写杂活")
    return str(number)


def normalize_numeric_process_name(value: str | None) -> str:
    text = str(value or "").strip()
    if not re.fullmatch(r"\d+", text):
        raise ValueError("工序必须填写正整数")
    number = int(text)
    if number <= 0:
        raise ValueError("工序必须填写正整数")
    return str(number)


def export_process_name(value: str | None) -> str:
    text = str(value or "").strip()
    if text == MISC_PROCESS_NAME:
        return MISC_PROCESS_NAME
    legacy_match = re.fullmatch(r"0*(\d+)序", text)
    if legacy_match:
        return str(int(legacy_match.group(1)))
    if re.fullmatch(r"\d+", text):
        return str(int(text))
    return text


def process_order(process_name: str | None) -> tuple[int, str]:
    text = export_process_name(process_name)
    return (int(text), text) if re.fullmatch(r"\d+", text) else (0, text)