import { Router } from 'vue-router';
import { PageEnum, PreviewEnum } from '@/enums/pageEnum'
import { useSystemStore } from '@/store/modules/systemStore/systemStore'
import { SystemStoreUserInfoEnum, SystemStoreEnum } from '@/store/modules/systemStore/systemStore.d'
import { useDesignStore } from '@/store/modules/designStore/designStore'
import { ThemeEnum } from '@/enums/styleEnum'
import { setHtmlTheme } from '@/utils'

/**
 * 从 URL 参数中提取 token 并自动登录
 */
function autoLoginFromUrlToken(query: any) {
  const token = query.token
  if (token) {
    const systemStore = useSystemStore()
    // 存储 token 到 store
    systemStore.setItem(SystemStoreEnum.USER_INFO, {
      [SystemStoreUserInfoEnum.USER_TOKEN]: token,
      [SystemStoreUserInfoEnum.TOKEN_NAME]: 'token',
      [SystemStoreUserInfoEnum.USER_ID]: 'iframe-user',
      [SystemStoreUserInfoEnum.USER_NAME]: 'iframe-user',
      [SystemStoreUserInfoEnum.NICK_NAME]: 'iframe-user',
    })
    console.log('[GoView] 已从 URL 参数中获取 token 并自动登录')
    return true
  }
  return false
}

/**
 * 从 URL 参数中提取 mode 并切换主题
 */
function autoSwitchThemeFromUrlMode(query: any) {
  const mode = query.mode
  if (mode) {
    const designStore = useDesignStore()
    const isDark = mode === 'dark'
    const themeName = isDark ? ThemeEnum.DARK : ThemeEnum.LIGHT
    
    // 如果主题不同，则设置并持久化到localStorage
    if (designStore.themeName !== themeName) {
      designStore.setTheme(isDark)
      setHtmlTheme(themeName)
      console.log(`[GoView] 已切换主题为 ${mode} 并存储到本地`)
    }
  }
}

export function createRouterGuards(router: Router) {
  // 前置
  router.beforeEach(async (to, from, next) => {
    // http://localhost:3000/#/chart/preview/792622755697790976?t=123
    // 把外部动态参数放入window.route.params，后续API动态接口可以用window.route?.params?.t来拼接参数
    // @ts-ignore
    if (!window.route) window.route = {params: {}}
    // @ts-ignore
    Object.assign(window.route.params, to.query)

    const Loading = window['$loading'];
    Loading && Loading.start();
    const isErrorPage = router.getRoutes().findIndex((item) => item.name === to.name);
    if (isErrorPage === -1) {
      next({ name: PageEnum.ERROR_PAGE_NAME_404 })
      return
    }

    // iframe 嵌入模式：自动从 URL 参数中提取 token 并登录
    autoLoginFromUrlToken(to.query)
    
    // iframe 嵌入模式：自动从 URL 参数中提取 mode 并切换主题
    autoSwitchThemeFromUrlMode(to.query)
    
    // iframe 嵌入模式：完全跳过登录验证，允许所有路由访问
    next()
  })

  router.afterEach((to, _, failure) => {
    const Loading = window['$loading'];
    document.title = (to?.meta?.title as string) || document.title;
    Loading && Loading.finish();
  })

  // 错误
  router.onError((error) => {
    console.log(error, '路由错误');
  });
}