# ============================================================
# 会话焦点（moduleId: core-session-focus, 可重生 ✅）
# 记住「刚查过的订单」等指代，支持「把这个订单排产」。
# ============================================================
from __future__ import annotations

import threading
from typing import Any

_lock = threading.Lock()
_focus: dict[str, dict[str, Any]] = {}


def set_focus(session_id: str, **kwargs: Any) -> None:
    if not session_id:
        return
    with _lock:
        cur = _focus.setdefault(session_id, {})
        for k, v in kwargs.items():
            if v is not None and v != "":
                cur[k] = v


def get_focus(session_id: str) -> dict[str, Any]:
    with _lock:
        return dict(_focus.get(session_id) or {})


def get_last_order_no(session_id: str) -> str | None:
    f = get_focus(session_id)
    return f.get("orderNo") or None