import {
  createRouter,
  createWebHashHistory,
  RouteLocationRaw,
  RouteLocationNormalizedLoaded,
} from 'vue-router'
import NProgress from 'nprogress'
import 'nprogress/nprogress.css'
import {
  STATIC_ROUTES,
  NO_LOGIN_ROUTES,
  ROOT_ROUTER,
  ADMIN_ROUTE,
  findFirstValidRoute,
} from './routers'
import { language } from '@/lang'
import useSystemStore from '@/stores/modules/system'
import useUserStore from '@/stores/modules/user'
import { setWindowTitle, getAppType, urlToRouteRaw } from '@/utils/common'

const router = createRouter({
  history: createWebHashHistory(import.meta.env.BASE_URL),
  routes: [ADMIN_ROUTE, ...STATIC_ROUTES],
})

/**
 * 重写push方法
 */
const originPush = router.push
router.push = (to: RouteLocationRaw) => {
  const route: any = typeof to == 'string' ? urlToRouteRaw(to) : to
  if (route.path) {
    const paths = route.path.split('/').filter((item: string) => {
      return item
    })
    route.path =
      ['admin'].indexOf(paths[0]) == -1
        ? `/${getAppType()}${route.path}`
        : route.path
  }
  return originPush(route)
}

/**
 * 重写resolve方法
 */
const originResolve = router.resolve
router.resolve = (
  to: RouteLocationRaw,
  currentLocation?: RouteLocationNormalizedLoaded
) => {
  const route: any = typeof to == 'string' ? urlToRouteRaw(to) : to
  if (route.path) {
    const paths = route.path.split('/').filter((item: string) => {
      return item
    })
    route.path =
      ['admin'].indexOf(paths[0]) == -1
        ? `/${getAppType()}${route.path}`
        : route.path
  }
  return originResolve(route, currentLocation)
}

// 全局前置守卫
router.beforeEach(async (to: any, from, next) => {
  NProgress.configure({ showSpinner: false })
  NProgress.start()

  to.redirectedFrom && (to.query = to.redirectedFrom.query)

  const userStore = useUserStore()
  const systemStore = useSystemStore()

  let title: string = to.meta.title ?? ''

  // 设置网站标题
  setWindowTitle(title)

  // 加载语言包
  await language.loadLocaleMessages(
    to.meta.addon || '',
    to.meta.view || to.path,
    systemStore.lang
  )

  const loginPath = '/admin/login'

  // 判断是否需登录
  if (NO_LOGIN_ROUTES.includes(to.path)) {
    next()
  } else if (userStore.token) {
    // 如果已加载路由
    if (userStore.routers.length) {
      console.log('路由守卫: 已加载路由数量=', userStore.routers.length, '目标路径=', to.path)

      if (to.path === loginPath) {
        console.log('路由守卫: 从登录页跳转到应用根路径')
        next(`/${getAppType()}`)
      } else if (to.path === `/${getAppType()}`) {
        // 如果访问的是应用根路径，重定向到第一个有效路由
        const firstRoute = findFirstValidRoute(userStore.routers)
        console.log('路由守卫: 访问根路径，找到的第一个路由=', firstRoute)
        if (firstRoute) {
          console.log('路由守卫: 重定向到第一个路由', { name: firstRoute })
          next({ name: firstRoute })
        } else {
          console.log('路由守卫: 没有找到有效路由')
          next()
        }
      } else {
        console.log('路由守卫: 正常访问', to.path)
        next()
      }
    } else {
      console.log('路由守卫: 未加载路由，开始加载...')
      try {
        if (!systemStore.apps.length) {
          await systemStore.getInstallAddons()
        }
        await userStore.getAuthMenusFn()

        // 设置首页路由
        let firstRoute: symbol | string | undefined = findFirstValidRoute(
          userStore.routers
        )
        if (systemStore.apps[0]) {
          firstRoute = userStore.addonIndexRoute[systemStore.apps[0].key]
        }

        console.log('路由守卫: 首个路由=', firstRoute, '路由列表=', userStore.routers)

        // 如果没有找到有效路由，使用默认的登录页面或404页面
        if (!firstRoute) {
          console.warn('未找到有效的菜单路由，请检查用户权限配置')
          // 清除token并重新登录
          userStore.logout()
          return
        }

        ROOT_ROUTER.redirect = { name: firstRoute }
        router.addRoute(ROOT_ROUTER)

        // 设置应用首页路由
        ADMIN_ROUTE.children[0].redirect = { name: firstRoute }
        router.addRoute(ADMIN_ROUTE)

        // 添加动态路由
        userStore.routers.forEach((route) => {
          if (!route.children) {
            router.addRoute(ADMIN_ROUTE.name, route)
            return
          }

          // 动态添加可访问路由表
          router.addRoute(ADMIN_ROUTE.name, route)
        })

        console.log('路由守卫: 动态路由已添加，目标路径=', to.path)

        // 如果访问的是登录页或应用根路径，跳转到第一个有效路由
        if (to.path === loginPath || to.path === `/${getAppType()}`) {
          console.log('路由守卫: 跳转到首个路由', { name: firstRoute })
          next({ name: firstRoute })
        } else {
          console.log('路由守卫: 继续访问目标页面', to.path)
          next(to)
        }
      } catch (err) {
        console.error('路由守卫: 加载路由失败', err)
        next({ path: loginPath, query: { redirect: to.fullPath } })
      }
    }
  } else {
    if (to.path === loginPath) {
      next()
    } else {
      next({ path: loginPath, query: { redirect: to.fullPath } })
    }
  }
})

// 全局后置钩子
router.afterEach(() => {
  NProgress.done()
})

export default router