"""问数结果缓存主动失效（D-06 写侧钩子入口）。

事实表变更时 bump 表世代，fail-open（缓存失效失败不阻断业务写）。
"""
from __future__ import annotations

from app.service.cache_service import CacheService

_svc: CacheService | None = None


def _service() -> CacheService:
    global _svc
    if _svc is None:
        _svc = CacheService.auto()
    return _svc


def bump_analyst_cache(*tables: str) -> None:
    if not tables:
        return
    _service().invalidate_tables(tables)


def bump_analyst_cache_for_trade() -> None:
    bump_analyst_cache("core_trade")


def bump_analyst_cache_for_risk_alert() -> None:
    bump_analyst_cache("risk_alert")


def bump_analyst_cache_for_l3() -> None:
    bump_analyst_cache("customer_profile_l3")