/**
 * 用户状态管理模块
 */

import { defineStore } from 'pinia'
import { 
  getToken, setToken, removeToken,
  getRefreshToken, setRefreshToken, removeRefreshToken,
  getUserInfo, setUserInfo, removeUserInfo
} from '../utils/storage.js'
import { getUserInfo as fetchUserInfoApi } from '../api/user.js'

/** 用户等级常量 */
export const USER_LEVEL = {
  NORMAL: 1,      // 普通用户
  PARTNER: 2,     // 合伙人
  CHANNEL: 3      // 渠道合伙人
}

export const useUserStore = defineStore('user', {
  state: () => ({
    token: getToken() || '',
    refreshToken: getRefreshToken() || '',
    userId: 0,
    uid: '',
    nickname: '',
    avatar: '',
    phone: '',
    userLevel: USER_LEVEL.NORMAL
  }),

  getters: {
    /**
     * 是否已登录
     */
    isLoggedIn: (state) => !!state.token && state.token.length > 0,
    
    /**
     * 是否是合伙人（合伙人或渠道合伙人）
     */
    isPartner: (state) => state.userLevel >= USER_LEVEL.PARTNER,
    
    /**
     * 是否是渠道合伙人
     */
    isChannelPartner: (state) => state.userLevel === USER_LEVEL.CHANNEL
  },

  actions: {
    /**
     * 登录 - 设置token和用户信息
     * @param {Object} loginData - 登录数据
     * @param {string} loginData.token - 访问令牌
     * @param {string} loginData.refreshToken - 刷新令牌
     * @param {Object} loginData.userInfo - 用户信息
     */
    login(loginData) {
      const { token, refreshToken, userInfo } = loginData
      
      this.token = token
      setToken(token)
      
      if (refreshToken) {
        this.refreshToken = refreshToken
        setRefreshToken(refreshToken)
      }
      
      if (userInfo) {
        this.updateUserInfo(userInfo)
      }
    },

    /**
     * 登出 - 清除所有用户状态
     */
    logout() {
      this.token = ''
      this.refreshToken = ''
      removeToken()
      removeRefreshToken()
      
      this.userId = 0
      this.uid = ''
      this.nickname = ''
      this.avatar = ''
      this.phone = ''
      this.userLevel = USER_LEVEL.NORMAL
      removeUserInfo()
    },

    /**
     * 更新用户信息
     * @param {Object} userInfo - 用户信息
     */
    updateUserInfo(userInfo) {
      if (!userInfo) return
      
      if (userInfo.userId !== undefined) this.userId = userInfo.userId
      if (userInfo.uid !== undefined) this.uid = userInfo.uid
      if (userInfo.nickname !== undefined) this.nickname = userInfo.nickname
      if (userInfo.avatar !== undefined) this.avatar = userInfo.avatar
      if (userInfo.phone !== undefined) this.phone = userInfo.phone
      if (userInfo.userLevel !== undefined) this.userLevel = userInfo.userLevel
      
      setUserInfo({
        userId: this.userId,
        uid: this.uid,
        nickname: this.nickname,
        avatar: this.avatar,
        phone: this.phone,
        userLevel: this.userLevel
      })
    },

    /**
     * 从服务器获取用户信息
     * 登录后、App启动时、下拉刷新时调用
     */
    async fetchUserInfo() {
      try {
        const res = await fetchUserInfoApi()
        if (res && res.code === 0 && res.data) {
          const d = res.data
          this.updateUserInfo({
            userId: d.Id ?? d.id,
            uid: d.Uid ?? d.uid,
            nickname: d.Nickname ?? d.nickname,
            avatar: d.Headimg ?? d.headimg,
            phone: d.Mobile ?? d.mobile,
            userLevel: d.Vip ?? d.vip ?? USER_LEVEL.NORMAL
          })
        }
      } catch (e) {
        console.warn('获取用户信息失败:', e)
      }
    },

    /**
     * 从存储恢复用户状态
     */
    restoreFromStorage() {
      const token = getToken()
      const refreshToken = getRefreshToken()
      const userInfo = getUserInfo()
      
      if (token) {
        this.token = token
      }
      
      if (refreshToken) {
        this.refreshToken = refreshToken
      }
      
      if (userInfo) {
        this.userId = userInfo.userId || 0
        this.uid = userInfo.uid || ''
        this.nickname = userInfo.nickname || ''
        this.avatar = userInfo.avatar || ''
        this.phone = userInfo.phone || ''
        this.userLevel = userInfo.userLevel || USER_LEVEL.NORMAL
      }
    }
  }
})