import { useStorage } from '@vueuse/core'
import { acceptHMRUpdate, defineStore } from 'pinia'
import { ref } from 'vue'

import router from '@/router'
import { resolveMenu, resolveRoute } from '@/router/helper'
import { routeRecordRaw } from '@/router/record'

import type { MergeMenuMixedOptions } from '@/router/helper'
import type { MenuProps } from 'naive-ui'
import type { RouteRecordRaw } from 'vue-router'
import { parseJwtToken, type JwtPayload } from '@/utils/casdoor/token'

interface User {
  avatar?: string
  id?: string
  name?: string
  role?: 'admin' | 'user'
  permissions: UserPermissions
}

interface UserPermissions {
  isAdmin: boolean
  items: UserPermissionsItems
}

interface UserPermissionsItems {
  xlog?: boolean // xlog操作权限
  autoUpdate?: boolean // 自动升级配置页面操作权限
  faultRecord?: boolean // 故障录波操作权限
}

const DEFAULT_USER: User = {
  avatar: '',
  id: '2000',
  name: 'FWH User',
  role: 'user',
  permissions: {
    isAdmin: false,
    items: {},
  },
}

// 特权菜单定义
const adminMenuNames: string[] = [
  'backgroundTask', // 后台任务管理
] as const

const xlogMenuNames: string[] = [
  'xlogManage', // XLOG管理
  'xlogTerminal', // XLOG终端
] as const

const autoUpdateMenuNames: string[] = [
  'autoUpdate', // 自动升级
  'autoUpdatePackage', // 升级包管理
  'autoUpdateAPowerVersion', // aPower版本管理
  'autoUpdateConfig', // 自动升级配置
  'autoUpdateConfigFile', // 配置文件管理
] as const

const faultRecordMenuNames: string[] = [
  'faultRecord', // 故障录波主菜单
  'faultRecordRead', // 故障录波参数读界面
  'faultRecordWrite', // 故障录波参数写界面
] as const

const parsePermissions = (payload: JwtPayload): User => {
  return {
    avatar: '',
    id: payload.id,
    name: payload.name,
    role: payload.isAdmin ? 'admin' : 'user',
    permissions: {
      isAdmin: payload.isAdmin,
      items: payload.permissions.reduce<UserPermissionsItems>((acc, cur) => {
        switch (cur.name) {
          case 'xlog':
            acc.xlog = true
            break
          case 'autoUpdate':
            acc.autoUpdate = true
            break
          case 'faultRecord':
            acc.faultRecord = true
            break
        }
        return acc
      }, {}),
    },
  }
}

export const useUserStore = defineStore('userStore', () => {
  const user = useStorage<User>('user', DEFAULT_USER)

  const token = useStorage<string | undefined>('token', undefined)

  const tokenPayload = useStorage<JwtPayload | undefined>('tokenPayload', undefined, undefined, {
    serializer: {
      read: (v: string) => (v ? (v !== '' ? JSON.parse(v) : undefined) : undefined),
      write: (v: JwtPayload | undefined) => (v ? JSON.stringify(v) : ''),
    },
  })

  const menuList = ref<MenuProps['options']>([])

  const routeList = ref<RouteRecordRaw[]>([])

  const getUserInfo = (): User => {
    return user.value
  }

  const setToken = (value: string | undefined) => {
    token.value = value
    if (value !== undefined) {
      const jwtData = parseJwtToken(value)
      console.log({ jwtData, jwtDataStr: JSON.stringify(jwtData) })
      tokenPayload.value = jwtData
      user.value = parsePermissions(jwtData)
    } else {
      tokenPayload.value = undefined
      user.value = DEFAULT_USER
    }
  }

  async function resolveMenuList() {
    const res = await new Promise<MergeMenuMixedOptions[]>((resolve) => {
      if (tokenPayload.value !== undefined) {
        if (user.value.permissions.isAdmin) {
          resolve(routeRecordRaw)
        } else {
          // const allowedRoutes = tokenPayload.value.roles.map((role) => role.domains).flat()
          // const filterRoutes = (routeRecord: MergeMenuMixedOptions[]) => {
          //   return routeRecord
          //     .map((route): MergeMenuMixedOptions | undefined => {
          //       const selfAllowed =
          //         !route.type && route.name && allowedRoutes.includes(route.name as string)
          //       if (selfAllowed) return route

          //       // 先递归处理 children
          //       if (!('children' in route) || route.children === undefined) {
          //         return undefined
          //       }
          //       const result = { ...route }
          //       result.children = filterRoutes(route.children)
          //       return result
          //     })
          //     .filter((item): item is MergeMenuMixedOptions => Boolean(item))
          // }
          // resolve(filterRoutes(routeRecordRaw))
          const permissionsItems = user.value.permissions.items
          resolve(
            routeRecordRaw.filter((route) => {
              if (route.type === undefined && typeof route.name === 'string') {
                // 清除admin权限页面
                if (adminMenuNames.includes(route.name)) {
                  return false
                }

                // xlog界面控制
                if (permissionsItems.xlog !== true) {
                  if (xlogMenuNames.includes(route.name)) {
                    return false
                  }
                }

                // autoUpdate界面控制
                if (permissionsItems.autoUpdate !== true) {
                  if (autoUpdateMenuNames.includes(route.name)) {
                    return false
                  }
                }

                // faultRecord界面控制
                if (permissionsItems.faultRecord !== true) {
                  if (faultRecordMenuNames.includes(route.name)) {
                    return false
                  }
                }
              }
              return true
            }),
          )
        }
      } else {
        cleanup()
        resolve([])
      }

      // if (token.value?.includes('admin')) {
      //   resolve(routeRecordRaw)
      // } else {
      //   const allowedRoutes = ['dashboard', 'dataShow', 'notfoundPage', 'about']
      //   const filteredRoutes = routeRecordRaw.filter((route) => {
      //     return !route.type && route.name && allowedRoutes.includes(route.name as string)
      //   })
      //   resolve(filteredRoutes)
      // }
      // 暂时没有管理员权限
      // resolve(routeRecordRaw)
    })

    menuList.value = resolveMenu(res) || []
    routeList.value = resolveRoute(res) || []
  }

  function cleanup(redirectPath?: string) {
    router.replace({
      name: 'signin',
      ...(redirectPath ? { query: { r: redirectPath } } : {}),
    })

    token.value = undefined

    if (router.hasRoute('layout')) {
      router.removeRoute('layout')
    }

    menuList.value = []

    routeList.value = []
  }

  return {
    user,
    token,
    tokenPayload,
    menuList,
    routeList,
    resolveMenuList,
    getUserInfo,
    setToken,
    cleanup,
  }
})

if (import.meta.hot) {
  import.meta.hot.accept(acceptHMRUpdate(useUserStore, import.meta.hot))
}