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 '@gold/hooks/web/useUserInfo'

const STORAGE_KEY = 'user_store_v1'

export const useUserStore = defineStore('user', () => {
  const isLoggedIn = ref(false)
  const userId = ref('')
  const nickname = ref('')
  const avatar = ref('')
  const wechat = ref({ openId: '', unionId: '', nickname: '', avatar: '' })
  const balance = ref(0)
  const vipLevel = ref(0)
  const credits = ref(0)
  const isHydrated = ref(false)

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

  // 持久化数据
  const userData = computed(() => ({
    isLoggedIn: isLoggedIn.value,
    userId: userId.value,
    nickname: nickname.value,
    avatar: avatar.value,
    wechat: wechat.value,
    balance: balance.value,
    vipLevel: vipLevel.value,
    credits: credits.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 || ''
    wechat.value = saved.wechat || { openId: '', unionId: '', nickname: '', avatar: '' }
    balance.value = Number(saved.balance || 0)
    vipLevel.value = Number(saved.vipLevel || 0)
    credits.value = Number(saved.credits || 0)
  }

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

  // 登录
  const login = (profile) => {
    isLoggedIn.value = true
    userId.value = String(profile.userId || profile.id || '')
    nickname.value = profile.nickname || ''
    avatar.value = profile.avatar || ''
    if (profile.wechat) {
      wechat.value = profile.wechat
    }
    balance.value = Number(profile.balance || 0)
    vipLevel.value = Number(profile.vipLevel || 0)
    credits.value = Number(profile.credits || 0)
  }

  // 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 || ''
        if (userInfo.point !== undefined) credits.value = Number(userInfo.point || 0)
        isLoggedIn.value = true
      }
    } catch (error) {
      console.error('获取用户信息失败:', 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 = ''
    wechat.value = { openId: '', unionId: '', nickname: '', avatar: '' }
    balance.value = 0
    vipLevel.value = 0
    credits.value = 0

    await remove(STORAGE_KEY)
  }

  return {
    isHydrated,
    isLoggedIn,
    userId,
    nickname,
    avatar,
    wechat: wechat.value,
    balance,
    vipLevel,
    credits,
    displayName,
    displayAvatar,
    login,
    fetchUserInfo,
    logout,
  }
})

export default useUserStore