from __future__ import annotations

import logging
from typing import Any

logger = logging.getLogger(__name__)


class GroupActivation:
    def __init__(self, config: dict):
        self._config = config
        self._session_overrides: dict[str, str] = {}

    def resolve_activation(self, group_openid: str) -> str:
        if group_openid in self._session_overrides:
            return self._session_overrides[group_openid]

        group_cfg = self._get_group_config(group_openid)
        return group_cfg.get("require_mention", True) and "mention" or "always"

    def set_session_override(self, group_openid: str, mode: str) -> None:
        self._session_overrides[group_openid] = mode

    def clear_session_override(self, group_openid: str) -> None:
        self._session_overrides.pop(group_openid, None)

    def _get_group_config(self, group_openid: str) -> dict:
        groups = self._config.get("channels", {}).get("qqbot", {}).get("groups", {})
        return groups.get(group_openid, {})