import re

from abc import ABC, abstractmethod

from django.conf import settings


class UAList(ABC):

    @abstractmethod
    def get_ua_list(self) -> list[str]:
        raise NotImplemented

    def __contains__(self, item):
        list = self.get_ua_list()
        pattern = "|".join(list)
        return re.search(pattern, item) is not None



class ConfigBackedUAList(UAList):
    def get_ua_list(self) -> list[str]:
        return list(getattr(settings, "AI_BLOCKER_CONF").get("ua_list", []))