"""移动市场接口的严格菜单权限守卫。"""
from typing import Callable, Iterable

from fastapi import Depends, HTTPException
from sqlalchemy.orm import Session

from app.core.auth import get_current_user
from app.core.database import get_db
from app.services.web_auth_roles import (
    iter_user_menu_perm_codes,
    resolve_web_role_for_user,
)


def require_market_menu_permission(
    *,
    user_id: str,
    tenant_no: str,
    required: str,
    granted: Iterable[str],
) -> bool:
    """严格判断当前租户用户是否拥有指定移动市场权限码。"""
    uid = (user_id or "").strip()
    tenant = (tenant_no or "").strip()
    code = (required or "").strip()
    if not uid or not tenant or not code:
        return False
    return code in {(item or "").strip() for item in granted if item}


def user_has_tenant_menu_perm(
    db: Session,
    *,
    user_id: str,
    tenant_no: str,
    perm_code: str,
) -> bool:
    """按显式租户读取用户权限，不回退默认租户。"""
    tenant = (tenant_no or "").strip()
    uid = (user_id or "").strip()
    if not tenant or not uid:
        return False
    granted = iter_user_menu_perm_codes(db, uid, tenant_no=tenant)
    return require_market_menu_permission(
        user_id=uid,
        tenant_no=tenant,
        required=perm_code,
        granted=granted,
    )


def require_market_menu_code(menu_code: str) -> Callable:
    """为移动市场 API 提供租户化、精确匹配的菜单权限依赖。"""
    required = (menu_code or "").strip()

    async def dependency(
        user: dict = Depends(get_current_user),
        db: Session = Depends(get_db),
    ) -> dict:
        tenant_no = str(user.get("tenant_no") or "").strip()
        user_id = str(user.get("user_id") or "").strip()
        if not tenant_no or not user_id:
            raise HTTPException(status_code=403, detail="用户租户或身份信息缺失")
        tenant_role = resolve_web_role_for_user(
            db, user_id, tenant_no=tenant_no
        )
        if tenant_role != "super_admin" and not user_has_tenant_menu_perm(
            db,
            user_id=user_id,
            tenant_no=tenant_no,
            perm_code=required,
        ):
            raise HTTPException(status_code=403, detail="无移动端菜单权限")
        return user

    return dependency