import NotPermission from '@/components/error/403.tsx'
import NotFound from '@/components/error/404.tsx'
import ErrorPage from '@/components/error/error.tsx'
import FetchLoading from '@/components/loading/FetchLoading.tsx'
import PageLoading from '@/components/page-loading'
import { Route as AuthenticatedImport } from '@/layout/_authenticated.tsx'
import EmptyLayout from '@/layout/EmptyLayout.tsx'
import ListPageLayout from '@/layout/ListPageLayout.tsx'
import { Route as DashboardImport } from '@/pages/dashboard'
import { Route as LoginRouteImport } from '@/pages/login'
import { generateUUID } from '@/utils/uuid.ts'
import { QueryClient, QueryClientProvider } from '@tanstack/react-query'
import {
  AnyRoute,
  createLazyRoute,
  createRootRouteWithContext,
  createRoute,
  createRouter,
  Outlet,
  redirect,
  RouterProvider,
} from '@tanstack/react-router'
import { TanStackRouterDevtools } from '@tanstack/router-devtools'
import { memo } from 'react'
import RootLayout from './layout/RootLayout'
import { IRootContext, MenuItem } from './types'
import { DevTools } from 'jotai-devtools'


export const queryClient = new QueryClient({
  defaultOptions: {
    queries: {
      retry: false,
    }
  }
})


const rootRoute = createRootRouteWithContext<IRootContext>()({
  component: () => (

    <div>
      <FetchLoading/>
      <Outlet/>
      <DevTools />
      <TanStackRouterDevtools position={'bottom-right'}/>
    </div>
  ),
  beforeLoad: ({ location }) => {
    if (location.pathname === '/') {
      return redirect({ to: '/dashboard' })
    }
  },
  loader: () => {

  },
  notFoundComponent: NotFound,
  pendingComponent: PageLoading,
  errorComponent: ({ error }) => <ErrorPage error={error}/>,
})

const emptyRoute = createRoute({
  getParentRoute: () => rootRoute,
  id: '/_empty',
  component: EmptyLayout,
})

const authRoute = AuthenticatedImport.update({
  getParentRoute: () => rootRoute,
  id: '/_authenticated',
} as any)

const layoutNormalRoute = createRoute({
  getParentRoute: () => rootRoute,
  id: '/_normal_layout',
  component: RootLayout,
})

const layoutAuthRoute = createRoute({
  getParentRoute: () => authRoute,
  id: '/_auth_layout',
  component: RootLayout,
})

const notAuthRoute = createRoute({
  getParentRoute: () => layoutNormalRoute,
  path: '/not-auth',
  component: NotPermission
})

// const dashboardRoute = DashboardImport.update({
//   path: '/dashboard',
//   getParentRoute: () => layoutAuthRoute,
// } as any)

const loginRoute = LoginRouteImport.update({
  path: '/login',
  getParentRoute: () => emptyRoute,
} as any)

const menusRoute = createRoute({
  getParentRoute: () => layoutAuthRoute,
  path: '/system/menus',
}).lazy(async () => await import('@/pages/system/menus').then(d => d.Route))

const departmentsRoute = createRoute({
  getParentRoute: () => layoutAuthRoute,
  path: '/system/departments',
}).lazy(async () => await import('@/pages/system/departments').then(d => d.Route))

const usersRoute = createRoute({
  getParentRoute: () => layoutAuthRoute,
  path: '/system/users',
}).lazy(async () => await import('@/pages/system/users').then(d => d.Route))

const rolesRoute = createRoute({
  getParentRoute: () => layoutAuthRoute,
  path: '/system/roles',
}).lazy(async () => await import('@/pages/system/roles').then(d => d.Route))


declare module '@tanstack/react-router' {
  interface FileRoutesByPath {
    '/_authenticated': {
      preLoaderRoute: typeof AuthenticatedImport
      parentRoute: typeof rootRoute
    },
    '/_normal_layout': {
      preLoaderRoute: typeof layoutNormalRoute
      parentRoute: typeof rootRoute
    },
    '/_layout': {
      preLoaderRoute: typeof layoutAuthRoute
      parentRoute: typeof rootRoute
    },
    '/': {
      preLoaderRoute: typeof DashboardImport
      parentRoute: typeof layoutAuthRoute
    },
    '/dashboard': {
      preLoaderRoute: typeof DashboardImport
      parentRoute: typeof layoutAuthRoute
    },
    '/login': {
      preLoaderRoute: typeof LoginRouteImport
      parentRoute: typeof rootRoute
    },
    '/system/menus': {
      preLoaderRoute: typeof menusRoute
      parentRoute: typeof layoutAuthRoute
    },
    '/system/departments': {
      preLoaderRoute: typeof departmentsRoute
      parentRoute: typeof layoutAuthRoute
    },
    '/system/users': {
      preLoaderRoute: typeof usersRoute
      parentRoute: typeof layoutAuthRoute
    },
    '/system/roles': {
      preLoaderRoute: typeof rolesRoute
      parentRoute: typeof layoutAuthRoute
    },
    '/welcome': {
      preLoaderRoute: typeof rootRoute
      parentRoute: typeof layoutAuthRoute
    },
  }
}

export const generateDynamicRoutes = (menuData: MenuItem[], parentRoute: AnyRoute) => {
  // 递归生成路由，如果有routes则递归生成子路由

  const generateRoutes = (menu: MenuItem, parentRoute: AnyRoute) => {
    console.log('gen route', menu)
    const path = menu.path?.replace(parentRoute.options?.path, '')
    const isLayout = menu.children && menu.children.length > 0 && menu.type === 'menu'

    if (isLayout && (!menu.path || !menu.component)) {
      //没有component的layout，直接返回
      console.log('no-page')
      return createRoute({
        getParentRoute: () => layoutAuthRoute,
        id: `/layout-no-path-${generateUUID()}`,
        component: RootLayout,
      })
    }

    // @ts-ignore 添加menu属性，方便后面获取
    const options = {
      getParentRoute: () => parentRoute,
      menu,
    } as any

    if (isLayout) {
      options.id = path ?? `/layout-${generateUUID()}`
    } else {
      if (!path) {
        console.log(`${menu.name}没有设置视图`)
      } else {
        options.path = path
      }
    }

    console.log('gen route', options)

    //删除掉parentRoute的path，避免重复
    const route = createRoute(options).lazy(async () => {

      // @ts-ignore 获取route中的menu属性
      const menu = route.options.menu as MenuItem
      let component = menu.component

      // menu.type
      // 1,组件(页面)，2，IFrame，3，外链接，4，按钮
      if (menu.type === 'iframe') {
        component = '@/components/Iframe'
      }

      if (!component) {
        return createLazyRoute(options.path)({
          component: () => <div>404 Not Found</div>
        })
      }

      //处理component路径
      component = component.replace(/^\/pages/, '')
      component = component.replace(/^\//, '')

      console.log('load', `/pages/${component}`)
      /* @vite-ignore */
      const d = await import(`/pages/${component}`)
      if (d.Route) {
        console.log(d.Route)
        return d.Route
      }
      if (d.GenRoute) {
        return d.GenRoute(options.path)
      }
      return createLazyRoute(options.path)({
        component: d.default || d
      })
    })

    return route
  }

  // 对menuData递归生成路由，只处理type =1 的菜单
  const did = (menus: MenuItem[], parentRoute: AnyRoute) => {
    return menus.filter((item) => item.type === 'menu').map((item, index) => {
      // 如果有children则递归生成子路由，同样只处理type =1 的菜单
      const route = generateRoutes(item, parentRoute)

      // console.log(route)
      if (item.children && item.children.length > 0) {
        const children = did(item.children, route)
        if (children.length > 0) {
          route.addChildren(children)
        }
      }
      route.init({ originalIndex: index })
      return route
    })
  }

  const routes = did(menuData, parentRoute)

  parentRoute.addChildren(routes)

}
const routeTree = rootRoute.addChildren(
  [
    //非Layout
    loginRoute,
    emptyRoute,

    //不带权限Layout
    layoutNormalRoute.addChildren([
      notAuthRoute,
    ]),

    //带权限Layout
    // dashboardRoute,
    authRoute.addChildren(
      [
        layoutAuthRoute
        /*.addChildren(
          [
            menusRoute,
            departmentsRoute,
            usersRoute,
            rolesRoute,
          ]
        ),*/
      ]),
  ]
)


export const RootProvider = memo((props: { context: Partial<IRootContext> }) => {

  generateDynamicRoutes(props.context.menuData ?? [], layoutAuthRoute)

  const router = createRouter({
    routeTree,
    context: { queryClient, menuData: [] },
    defaultPreload: 'intent'
  })

  return (
    <QueryClientProvider client={queryClient}>
      <RouterProvider router={router} context={{ ...props.context, queryClient }}/>
    </QueryClientProvider>
  )
})