import { RouteRecordRaw } from 'vue-router';
import { useUserInfo } from '/@/stores/userInfo';
// import { useRequestOldRoutes } from '/@/stores/requestOldRoutes';
import pinia from '/@/stores/index';
import { Session } from '/@/utils/storage';
import { NextLoading } from '/@/utils/loading';
import { dynamicRoutes, notFoundAndNoPower } from '/@/router/route';
import { formatTwoStageRoutes, formatFlatteningRoutes, router } from '/@/router/index';
import { useRoutesList } from '/@/stores/routesList';
import { useTagsViewRoutes } from '/@/stores/tagsViewRoutes';
import SysMenuApi from '/@/api/SysMenuApi';
import { accessTokenKey } from '/@/utils/request';

// 后端控制路由

/**
 * 获取目录下的 .vue、.tsx 全部文件
 * @method import.meta.glob
 * @link 参考：https://cn.vitejs.dev/guide/features.html#json
 */
const layouModules: any = import.meta.glob('../layout/routerView/*.{vue,tsx}');
const viewsModules: any = import.meta.glob('../views/**/*.{vue,tsx}');
const dynamicViewsModules: Record<string, Function> = Object.assign({}, { ...layouModules }, { ...viewsModules });

/**
 * 后端控制路由：初始化方法，防止刷新时路由丢失
 * @method NextLoading 界面 loading 动画开始执行
 * @method useUserInfo().setUserInfos() 触发初始化用户信息 pinia
 * @method useRequestOldRoutes().setRequestOldRoutes() 存储接口原始路由（未处理component），根据需求选择使用
 * @method setAddRoute 添加动态路由
 * @method setFilterMenuAndCacheTagsViewRoutes 设置路由到 pinia routesList 中（已处理成多级嵌套路由）及缓存多级嵌套数组处理后的一维数组
 */
export async function initBackEndControlRoutes() {
	// 界面 loading 动画开始执行
	if (window.nextLoading === undefined) NextLoading.start();
	// 无 token 停止执行下一步
	if (!Session.get(accessTokenKey)) return false;
	// 触发初始化用户信息 pinia
	// https://gitee.com/lyt-top/vue-next-admin/issues/I5F1HP
	await useUserInfo().getUserInfo();
	// 获取路由菜单数据
	const { data } = await getBackEndControlRoutes();
	// 无登录权限时，添加判断
	// https://gitee.com/lyt-top/vue-next-admin/issues/I64HVO
	const routeList = data ?? [];
	if (routeList.length === 0) return Promise.resolve(true);
	// 存储接口原始路由（未处理component），根据需求选择使用
	// useRequestOldRoutes().setRequestOldRoutes(JSON.parse(JSON.stringify(data ?? [])));
	// 处理路由（component），替换 dynamicRoutes（/@/router/route）第一个顶级 children 的路由

	//静态路由
	let staticRoute = [
		{
			path: '/personal',
			name: 'personal',
			component: 'personal/index',
			meta: {
				title: '个人中心',
				isHide: true,
				isKeepAlive: true,
			},
		},
		{
			path: '/system/config/design',
			name: 'configDesign',
			component: 'system/config/design',
			meta: {
				title: '配置设计',
				isKeepAlive: false,
				isHide: true,
			},
		},
		{
			path: '/system/config/render',
			name: 'configRender',
			component: 'system/config/render',
			meta: {
				title: '编辑配置项',
				isKeepAlive: false,
				isHide: true,
			},
		},
		{
			path: '/system/config/items',
			name: 'configItems',
			component: 'system/config/itemList',
			meta: {
				title: '配置项列表',
				isKeepAlive: false,
				isHide: true,
			},
		},
		{
			path: '/blog/article/operate',
			name: 'articleOperate',
			component: 'blog/article/operate',
			meta: {
				title: '新增文章',
				isKeepAlive: false,
				isHide: true,
			},
		},
	];
	// 工作台业务页需要携带赛事上下文，不能依赖菜单接口是否已经下发全部子菜单。
	// 这些路由只作为隐藏的运行路由注册，左侧菜单仍以后端权限菜单为准。
	// 兼容已部署数据库里的旧菜单数据：旧版“秩序册”曾错误复用 launcher 路由。
	// 前端按稳定的路由名称/菜单编码修正运行地址，避免用户必须等待菜单种子重新入库。
	const normalizedRouteList = normalizeScoringMenuRoutes(routeList);
	const routesWithScoringFallback = ensureScoringOperationalRoutes(normalizedRouteList);
	dynamicRoutes[0].children = await backEndComponent([...routesWithScoringFallback, ...staticRoute]);
	// dynamicRoutes[0].children = await backEndComponent(routeList);
	// 添加动态路由
	await setAddRoute();
	// 设置路由到 pinia routesList 中（已处理成多级嵌套路由）及缓存多级嵌套数组处理后的一维数组
	setFilterMenuAndCacheTagsViewRoutes();
}

/**
 * 设置路由到 pinia routesList 中（已处理成多级嵌套路由）及缓存多级嵌套数组处理后的一维数组
 * @description 用于左侧菜单、横向菜单的显示
 * @description 用于 tagsView、菜单搜索中：未过滤隐藏的(isHide)
 */
export async function setFilterMenuAndCacheTagsViewRoutes() {
	const storesRoutesList = useRoutesList(pinia);
	storesRoutesList.setRoutesList(dynamicRoutes[0].children as any);
	setCacheTagsViewRoutes();
}

/**
 * 缓存多级嵌套数组处理后的一维数组
 * @description 用于 tagsView、菜单搜索中：未过滤隐藏的(isHide)
 */
export function setCacheTagsViewRoutes() {
	const storesTagsView = useTagsViewRoutes(pinia);
	storesTagsView.setTagsViewRoutes(formatTwoStageRoutes(formatFlatteningRoutes(dynamicRoutes))[0].children);
}

/**
 * 处理路由格式及添加捕获所有路由或 404 Not found 路由
 * @description 替换 dynamicRoutes（/@/router/route）第一个顶级 children 的路由
 * @returns 返回替换后的路由数组
 */
export function setFilterRouteEnd() {
	let filterRouteEnd: any = formatTwoStageRoutes(formatFlatteningRoutes(dynamicRoutes));
	// notFoundAndNoPower 防止 404、401 不在 layout 布局中，不设置的话，404、401 界面将全屏显示
	// 关联问题 No match found for location with path 'xxx'
	filterRouteEnd[0].children = [...filterRouteEnd[0].children, ...notFoundAndNoPower];
	return filterRouteEnd;
}

/**
 * 添加动态路由
 * @method router.addRoute
 * @description 此处循环为 dynamicRoutes（/@/router/route）第一个顶级 children 的路由一维数组，非多级嵌套
 * @link 参考：https://next.router.vuejs.org/zh/api/#addroute
 */
export async function setAddRoute() {
	await setFilterRouteEnd().forEach((route: RouteRecordRaw) => {
		router.addRoute(route);
	});
}

/**
 * 请求后端路由菜单接口
 * @description isRequestRoutes 为 true，则开启后端控制路由
 * @returns 返回后端路由菜单数据
 */
export function getBackEndControlRoutes() {
	return SysMenuApi.getMenus();
}

function normalizeScoringMenuRoutes(routes: any[]) {
	return routes.map((item) => {
		const children = item?.children?.length ? normalizeScoringMenuRoutes(item.children) : item?.children;
		const routeName = String(item?.name || item?.routeName || '');
		const menuCode = String(item?.code || item?.meta?.code || '');
		const title = String(item?.meta?.title || '');
		const path = String(item?.path || '');
		const isScoringOrderBookTitle = title === '秩序册' && String(item?.path || '').startsWith('/scoring/');
		const isOrderBook = routeName === 'scoringOrderBook' || menuCode === 'scoring:orderbook' || isScoringOrderBookTitle;
		const isScoringCastTitle = title === '成绩投屏' && path.startsWith('/scoring/');
		const isScoringCast = routeName === 'scoringCast' || menuCode === 'scoring:cast' || path === '/scoring/cast' || isScoringCastTitle;
		if (isScoringCast) {
			return {
				...item,
				path: '/scoring/cast',
				component: 'scoring/screen/index',
				children,
			};
		}
		if (!isOrderBook) return children === item?.children ? item : { ...item, children };
		return {
			...item,
			path: '/scoring/orderbook',
			component: 'scoring/orderbook/index',
			children,
		};
	});
}

function ensureScoringOperationalRoutes(routes: any[]) {
	const paths = new Set<string>();
	const collectPaths = (items: any[]) => items.forEach((item) => {
		if (item?.path) paths.add(item.path);
		if (item?.children?.length) collectPaths(item.children);
	});
	collectPaths(routes);
	const scoringEnabled = paths.has('/scoring') || paths.has('/scoring/launcher') || paths.has('/scoring/workbench') || paths.has('/scoring/orderbook');
	if (!scoringEnabled) return routes;

	const fallbacks = [
		{ path: '/scoring/launcher', name: 'scoringLauncherFallback', component: 'scoring/launcher/index', meta: { title: '工作台', isKeepAlive: true } },
		{ path: '/scoring/orderbook', name: 'scoringOrderBookFallback', component: 'scoring/orderbook/index', meta: { title: '秩序册', isHide: true, isKeepAlive: true } },
		{ path: '/scoring/workbench', name: 'scoringWorkbenchFallback', component: 'scoring/workbench/index', meta: { title: '成绩管理', isHide: true, isKeepAlive: true } },
		{ path: '/scoring/cast', name: 'scoringCastFallback', component: 'scoring/screen/index', meta: { title: '成绩投屏', isHide: true, isKeepAlive: true } },
	].filter((item) => !paths.has(item.path));
	return [...routes, ...fallbacks];
}

/**
 * 重新请求后端路由菜单接口
 * @description 用于菜单管理界面刷新菜单（未进行测试）
 * @description 路径：/src/views/system/menu/component/addMenu.vue
 */
export async function setBackEndControlRefreshRoutes() {
	await getBackEndControlRoutes();
}

/**
 * 后端路由 component 转换
 * @param routes 后端返回的路由表数组
 * @returns 返回处理成函数后的 component
 */
export function backEndComponent(routes: any) {
	if (!routes) return;
	return routes.map((item: any) => {
		if (item.component === '') {
			item.component = 'layout/routerView/parent';
		}
		if (item.component) item.component = dynamicImport(dynamicViewsModules, item.component as string);
		item.children && item.children.length > 0 && backEndComponent(item.children);
		return item;
	});
}

/**
 * 后端路由 component 转换函数
 * @param dynamicViewsModules 获取目录下的 .vue、.tsx 全部文件
 * @param component 当前要处理项 component
 * @returns 返回处理成函数后的 component
 */
export function dynamicImport(dynamicViewsModules: Record<string, Function>, component: string) {
	const keys = Object.keys(dynamicViewsModules);
	const matchKeys = keys.filter((key) => {
		const k = key.replace(/..\/views|../, '');
		return k.startsWith(`${component}`) || k.startsWith(`/${component}`);
	});
	if (matchKeys?.length === 1) {
		const matchKey = matchKeys[0];
		return dynamicViewsModules[matchKey];
	}
	if (matchKeys?.length > 1) {
		const exactKey = matchKeys.find((key) => {
			const k = key.replace(/..\/views|../, '');
			return k === `${component}.vue` || k === `/${component}.vue` || k === `${component}.tsx` || k === `/${component}.tsx`;
		});
		if (exactKey) return dynamicViewsModules[exactKey];
		return false;
	}
}