import { ref, computed, watch } from 'vue'
import { defineStore } from 'pinia'
import { getJSON, setJSON, remove } from '@/utils/storage'
import tokenManager from '@gold/utils/token-manager'
import { getUserInfo, clearUserInfoCache } from '@/api/userinfo'
import { getUserProfile } from '@/api/auth'

const STORAGE_KEY = 'user_store_v1'

/**
 * @typedef {Object} UserProfile
 * @property {string} [registerTime]
 * @property {string} [createTime]
 * @property {string} [mobile]
 * @property {number} [remainingPoints]
 * @property {number} [remainingStorage]
 * @property {number} [usedStorage]
 * @property {number} [totalStorage]
 * @property {number} [totalRecharge]
 */

export const useUserStore = defineStore('user', () => {
  const isLoggedIn = ref(false)
  const isHydrated = ref(false)

  // 基础信息
  const userId = ref('')
  const nickname = ref('')
  const avatar = ref('')
  const mobile = ref('')

  // 档案数据（来自 MemberUserProfile）
  /** @type {import('vue').Ref<UserProfile|null>} */
  const profile = ref(null)
  const remainingPoints = computed(() => profile.value?.remainingPoints ?? 0)
  const remainingStorage = computed(() => profile.value?.remainingStorage ?? 10) // GB
  const usedStorage = computed(() => profile.value?.usedStorage ?? 0) // GB
  const totalStorage = computed(() => profile.value?.totalStorage ?? 10) // GB
  const totalRecharge = computed(() => profile.value?.totalRecharge ?? 0) // 充值金额

  const displayName = computed(() => nickname.value || '未命名用户')
  const displayAvatar = computed(() => avatar.value || '')

  // 持久化数据
  const userData = computed(() => ({
    isLoggedIn: isLoggedIn.value,
    userId: userId.value,
    nickname: nickname.value,
    avatar: avatar.value,
    mobile: mobile.value,
    profile: profile.value,
  }))

  // 自动持久化
  watch(userData, (data) => setJSON(STORAGE_KEY, data), { deep: true })

  // 初始化从本地恢复
  const hydrateFromStorage = async () => {
    const saved = await getJSON(STORAGE_KEY)
    if (!saved) return
    isLoggedIn.value = !!saved.isLoggedIn
    userId.value = saved.userId || ''
    nickname.value = saved.nickname || ''
    avatar.value = saved.avatar || ''
    mobile.value = saved.mobile || ''
    profile.value = saved.profile || null
  }

  hydrateFromStorage().then(() => {
    isHydrated.value = true
  })

  // 登录
  const login = (data) => {
    isLoggedIn.value = true
    userId.value = String(data.userId || data.id || '')
    nickname.value = data.nickname || ''
    avatar.value = data.avatar || ''
    mobile.value = data.mobile || ''
  }

  // 获取用户信息
  const fetchUserInfo = async () => {
    try {
      const userInfo = await getUserInfo()
      if (userInfo) {
        userId.value = String(userInfo.id || userInfo.userId || '')
        nickname.value = userInfo.nickname || ''
        avatar.value = userInfo.avatar || ''
        mobile.value = userInfo.mobile || ''
        isLoggedIn.value = true
      }
    } catch (error) {
      console.error('获取用户信息失败:', error)
    }
  }

  // 获取用户档案
  const fetchUserProfile = async () => {
    try {
      const profileData = await getUserProfile()
      if (profileData) {
        profile.value = profileData
      }
    } catch (error) {
      console.error('获取用户档案失败:', error)
    }
  }

  // 登出
  const logout = async () => {
    try {
      tokenManager.clearTokens()
      clearUserInfoCache()
    } catch (e) {
      console.error('清空 token 失败:', e)
    }

    isLoggedIn.value = false
    userId.value = ''
    nickname.value = ''
    avatar.value = ''
    mobile.value = ''
    profile.value = null

    await remove(STORAGE_KEY)
  }

  return {
    isHydrated,
    isLoggedIn,
    userId,
    nickname,
    avatar,
    mobile,
    profile,
    remainingPoints,
    remainingStorage,
    usedStorage,
    totalStorage,
    totalRecharge,
    displayName,
    displayAvatar,
    login,
    fetchUserInfo,
    fetchUserProfile,
    logout,
  }
})

export default useUserStore