import { create } from "zustand";

// MenuItem 타입 정의 (필요한 필드만 포함)
export interface MenuItem {
    menuCd: number;
    menuKornNm: string;
    menuEngNm: string;
    parentId: number | null;
    sortSeq: number;
    iconNm?: string;
    children: MenuItem[] | null;
    levelNo: number;
    urlPath: string;
    menuLnkgTypeCd: string;
    menuLnkgSn: number;
    menuPath: string;
    qrcd: string;
    useYn: string;
    otptYn: string;
    newWndwYn: string;
    requiredUrlPath: boolean;
    menuHlpCn: string;
}

export interface Tab {
    id: string; // 고유 ID (menuEngNm)
    label: string; // 탭에 표시될 이름
    path: string; // 메뉴 경로
    urlPath: string; // url 경로
    parentEngNm: string; // 부모 menuEngNm
    menuItem: MenuItem; // 메뉴 정보
}

interface TabStore {
    tabs: Tab[];
    activeTabId: string | null;
    menuList: MenuItem[] | null;
    addTab: (menuItem: MenuItem) => boolean;
    removeTab: (tabId: string) => void;
    setActiveTab: (tabId: string) => void;
    setMenuList: (menuList: MenuItem[] | null) => void;
    closeAllTabs: () => void;
    closeOtherTabs: (tabId: string) => void;
}

const useTabStoreHook = create<TabStore>((set, get) => ({
    tabs: [],
    activeTabId: null,
    menuList: null,
    addTab: (menuItem: MenuItem) => {
        const { tabs, menuList } = get();
        const tabId = menuItem.menuEngNm || '';

        // 이미 존재하는 탭인지 확인
        const existingTab = tabs.find((tab) => tab.id === tabId);

        if (existingTab) {
            // 이미 존재하면 활성화만
            set({ activeTabId: tabId });
            return true;
        }

        if (tabs.length < 100) {
            const newTab: Tab = {
                id: tabId,
                label: menuItem.menuKornNm,
                path: menuItem.menuPath,
                urlPath: menuItem.urlPath,
                parentEngNm: menuList?.find((m) => m.menuCd === menuItem.parentId)?.menuEngNm || '',
                menuItem,
            };
    
            set({
                tabs: [...tabs, newTab],
                activeTabId: tabId,
            });

            return true;
        } else {
            return false;
        }
    },
    removeTab: (tabId: string): void => {
        const { tabs, activeTabId } = get();
        const newTabs = tabs.filter((tab) => tab.id !== tabId);

        // 닫는 탭이 현재 활성 탭이면 다른 탭으로 전환
        let newActiveTabId = activeTabId;
        if (activeTabId === tabId) {
            const closedTabIndex = tabs.findIndex((tab) => tab.id === tabId);
            if (newTabs.length > 0) {
                // 닫힌 탭의 이전 탭을 활성화, 없으면 다음 탭
                if (closedTabIndex > 0) {
                    const prevTab = tabs[closedTabIndex - 1];
                    newActiveTabId = prevTab ? prevTab.id : null;
                } else {
                    const firstTab = newTabs[0];
                    newActiveTabId = firstTab ? firstTab.id : null;
                }
            } else {
                newActiveTabId = null;
            }
        }

        set({
            tabs: newTabs,
            activeTabId: newActiveTabId,
        });
    },
    setActiveTab: (tabId: string) => {
        set({ activeTabId: tabId });
    },
    setMenuList: (menuList: MenuItem[] | null) => {
        set({ menuList });
    },
    closeAllTabs: () => {
        set({
            tabs: [],
            activeTabId: null,
        });
    },
    closeOtherTabs: (tabId: string) => {
        const { tabs } = get();
        const tabToKeep = tabs.find((tab) => tab.id === tabId);

        if (tabToKeep) {
            set({
                tabs: [tabToKeep],
                activeTabId: tabId,
            });
        }
    },
}));

export const useTabStore = useTabStoreHook;
export const getTabStoreState = () => useTabStoreHook.getState();