import { useEffect, useMemo, useState } from "react";
import { useAuth } from "../components/auth/AuthProvider";
import { isSystemAdminForCategoryScope } from "../lib/categoryScopeAccess";
import { getTeamMemberById } from "../services/teamMemberService";

/**
 * 新增/编辑表单的门店范围：系统管理员手选公司；其它角色使用账号绑定的公司 Id。
 */
export function useCategoryScopeAuth() {
  const auth = useAuth();
  const requireCompanySelection = useMemo(
    () =>
      isSystemAdminForCategoryScope({
        roleCodes: auth.roleCodes,
        permissionCodes: auth.permissionCodes,
        userName: auth.user?.userName,
      }),
    [auth.roleCodes, auth.permissionCodes, auth.user?.userName],
  );

  const [fixedPartnerId, setFixedPartnerId] = useState("");
  const [loadingPartner, setLoadingPartner] = useState(false);

  useEffect(() => {
    if (requireCompanySelection) {
      setFixedPartnerId("");
      setLoadingPartner(false);
      return;
    }

    const uid = (auth.user?.id ?? "").trim();
    if (!uid) {
      setFixedPartnerId("");
      return;
    }

    let cancelled = false;
    setLoadingPartner(true);
    (async () => {
      try {
        const detail = await getTeamMemberById(uid);
        if (cancelled) return;
        const pid = String(detail.partnerId ?? detail.partnerIds?.[0] ?? "").trim();
        setFixedPartnerId(pid);
      } catch {
        if (!cancelled) setFixedPartnerId("");
      } finally {
        if (!cancelled) setLoadingPartner(false);
      }
    })();

    return () => {
      cancelled = true;
    };
  }, [requireCompanySelection, auth.user?.id]);

  return {
    requireCompanySelection,
    fixedPartnerId,
    loadingPartner,
  };
}