"use client";

import React, { createContext, useContext, useState, useEffect, ReactNode } from "react";
import type { MenuItem } from "@/lib/api/menu";
import { menuApi } from "@/lib/api/menu"; // API 호출 활성화
import { toast } from "sonner";
import { useAuth } from "@/hooks/useAuth"; // user 정보 가져오기

interface MenuContextType {
  adminMenus: MenuItem[];
  userMenus: MenuItem[];
  loading: boolean;
  refreshMenus: () => Promise<void>;
}

const MenuContext = createContext<MenuContextType | undefined>(undefined);

export function MenuProvider({ children }: { children: ReactNode }) {
  const [adminMenus, setAdminMenus] = useState<MenuItem[]>([]);
  const [userMenus, setUserMenus] = useState<MenuItem[]>([]);
  const [loading, setLoading] = useState(true);
  const { user } = useAuth(); // user 정보 가져오기

  const convertMenuData = (data: any[]): MenuItem[] => {
    return data.map((item) => ({
      objid: item.OBJID || item.objid,
      parent_obj_id: item.PARENT_OBJ_ID || item.parent_obj_id,
      menu_name_kor: item.MENU_NAME_KOR || item.menu_name_kor,
      menu_url: item.MENU_URL || item.menu_url,
      menu_desc: item.MENU_DESC || item.menu_desc,
      seq: item.SEQ || item.seq,
      menu_type: item.MENU_TYPE || item.menu_type,
      status: item.STATUS || item.status,
      lev: item.LEV || item.lev,
      lpad_menu_name_kor: item.LPAD_MENU_NAME_KOR || item.lpad_menu_name_kor,
      status_title: item.STATUS_TITLE || item.status_title,
      writer: item.WRITER || item.writer,
      regdate: item.REGDATE || item.regdate,
      company_code: item.COMPANY_CODE || item.company_code,
      company_name: item.COMPANY_NAME || item.company_name,
      // 다국어 관련 필드 추가
      lang_key: item.LANG_KEY || item.lang_key,
      lang_key_desc: item.LANG_KEY_DESC || item.lang_key_desc,
      translated_name: item.TRANSLATED_NAME || item.translated_name,
      translated_desc: item.TRANSLATED_DESC || item.translated_desc,
    }));
  };

  const loadMenus = async () => {
    try {
      setLoading(true);

      // 사용자 로케일이 로드될 때까지 잠시 대기
      let retryCount = 0;
      const maxRetries = 20; // 최대 2초 대기 (100ms * 20)

      while (retryCount < maxRetries) {
        if (typeof window !== "undefined") {
          const hasGlobalLang = !!(window as any).__GLOBAL_USER_LANG;
          const hasStoredLang = !!localStorage.getItem("userLocale");

          if (hasGlobalLang || hasStoredLang) {
            break;
          }
        }

        await new Promise((resolve) => setTimeout(resolve, 100));
        retryCount++;
      }

      if (retryCount >= maxRetries) {
        console.warn("⚠️ 사용자 로케일 로드 타임아웃, 기본값으로 진행");
      }

      // 관리자 메뉴와 사용자 메뉴를 병렬로 로드
      // 좌측 사이드바용: active만 표시
      const [adminResponse, userResponse] = await Promise.all([menuApi.getAdminMenus(), menuApi.getUserMenus()]);

      if (adminResponse.success && adminResponse.data) {
        const convertedAdminMenus = convertMenuData(adminResponse.data);
        setAdminMenus(convertedAdminMenus);
      }

      if (userResponse.success && userResponse.data) {
        const convertedUserMenus = convertMenuData(userResponse.data);
        setUserMenus(convertedUserMenus);
      }
    } catch (error) {
      console.error("메뉴 로드 오류:", error);
      toast.error("메뉴 목록을 불러오는데 실패했습니다.");
    } finally {
      setLoading(false);
    }
  };

  const refreshMenus = async () => {
    await loadMenus();
  };

  useEffect(() => {
    // user.companyCode가 변경되면 메뉴 다시 로드
    // console.log("🔄 MenuContext: user.companyCode 변경 감지, 메뉴 재로드", user?.companyCode);
    loadMenus();
  }, [user?.companyCode]); // companyCode 변경 시 재로드

  return (
    <MenuContext.Provider value={{ adminMenus, userMenus, loading, refreshMenus }}>{children}</MenuContext.Provider>
  );
}

export function useMenu() {
  const context = useContext(MenuContext);
  if (context === undefined) {
    throw new Error("useMenu must be used within a MenuProvider");
  }
  return context;
}