/**
 * 用户状态管理模块
 * Requirements: 1.2, 9.1, 9.2
 */

import { defineStore } from 'pinia'
import { 
  getToken, setToken, removeToken,
  getUserInfo, setUserInfo, removeUserInfo,
  getGenderPreference, setGenderPreference
} from '../utils/storage.js'

/**
 * 用户状态定义
 * @typedef {Object} UserState
 * @property {string} token - JWT token
 * @property {number} userId - 用户ID
 * @property {string} nickname - 昵称
 * @property {string} avatar - 头像
 * @property {string} xiangQinNo - 相亲号
 * @property {boolean} isProfileCompleted - 资料是否完成
 * @property {boolean} isMember - 是否会员
 * @property {number} memberLevel - 会员等级
 * @property {boolean} isRealName - 是否实名
 * @property {number} genderPreference - 性别偏好 (1男 2女)
 */

export const useUserStore = defineStore('user', {
  state: () => ({
    token: getToken() || '',
    userId: 0,
    nickname: '',
    avatar: '',
    xiangQinNo: '',
    isProfileCompleted: false,
    isMember: false,
    memberLevel: 0,
    isRealName: false,
    genderPreference: getGenderPreference() || 0
  }),

  getters: {
    /**
     * 是否已登录
     * Property 17: Login State UI - token为空或无效时显示登录提示
     */
    isLoggedIn: (state) => !!state.token && state.token.length > 0,

    /**
     * 是否需要完善资料
     * Property 18: Profile Completion UI - 资料未完成时显示"立即填写"按钮
     */
    needCompleteProfile: (state) => !state.isProfileCompleted,

    /**
     * 是否需要选择性别偏好
     */
    needSelectGender: (state) => state.genderPreference === 0
  },

  actions: {
    /**
     * 登录 - 设置token和用户信息
     * @param {Object} loginData - 登录返回数据
     * @param {string} loginData.token - JWT token
     * @param {Object} loginData.userInfo - 用户信息
     */
    login(loginData) {
      const { token, userInfo } = loginData
      
      // 存储token
      this.token = token
      setToken(token)
      
      // 更新用户信息
      if (userInfo) {
        this.updateUserInfo(userInfo)
      }
    },

    /**
     * 登出 - 清除所有用户状态
     */
    logout() {
      // 清除token
      this.token = ''
      removeToken()
      
      // 清除用户信息
      this.userId = 0
      this.nickname = ''
      this.avatar = ''
      this.xiangQinNo = ''
      this.isProfileCompleted = false
      this.isMember = false
      this.memberLevel = 0
      this.isRealName = false
      removeUserInfo()
    },

    /**
     * 更新用户信息
     * @param {Object} userInfo - 用户信息对象
     */
    updateUserInfo(userInfo) {
      if (!userInfo) return
      
      if (userInfo.userId !== undefined) this.userId = userInfo.userId
      if (userInfo.nickname !== undefined) this.nickname = userInfo.nickname
      if (userInfo.avatar !== undefined) this.avatar = userInfo.avatar
      if (userInfo.xiangQinNo !== undefined) this.xiangQinNo = userInfo.xiangQinNo
      if (userInfo.isProfileCompleted !== undefined) this.isProfileCompleted = userInfo.isProfileCompleted
      if (userInfo.isMember !== undefined) this.isMember = userInfo.isMember
      if (userInfo.memberLevel !== undefined) this.memberLevel = userInfo.memberLevel
      if (userInfo.isRealName !== undefined) this.isRealName = userInfo.isRealName
      
      // 持久化用户信息
      setUserInfo({
        userId: this.userId,
        nickname: this.nickname,
        avatar: this.avatar,
        xiangQinNo: this.xiangQinNo,
        isProfileCompleted: this.isProfileCompleted,
        isMember: this.isMember,
        memberLevel: this.memberLevel,
        isRealName: this.isRealName
      })
    },

    /**
     * 设置性别偏好
     * @param {number} gender - 1男 2女
     */
    setGenderPref(gender) {
      this.genderPreference = gender
      setGenderPreference(gender)
    },

    /**
     * 从存储恢复用户状态
     */
    restoreFromStorage() {
      const token = getToken()
      const userInfo = getUserInfo()
      const genderPref = getGenderPreference()
      
      if (token) {
        this.token = token
      }
      
      if (userInfo) {
        this.userId = userInfo.userId || 0
        this.nickname = userInfo.nickname || ''
        this.avatar = userInfo.avatar || ''
        this.xiangQinNo = userInfo.xiangQinNo || ''
        this.isProfileCompleted = userInfo.isProfileCompleted || false
        this.isMember = userInfo.isMember || false
        this.memberLevel = userInfo.memberLevel || 0
        this.isRealName = userInfo.isRealName || false
      }
      
      if (genderPref) {
        this.genderPreference = genderPref
      }
    },

    /**
     * 设置资料完成状态
     * @param {boolean} completed - 是否完成
     */
    setProfileCompleted(completed) {
      this.isProfileCompleted = completed
      this.updateUserInfo({ isProfileCompleted: completed })
    },

    /**
     * 设置会员状态
     * @param {boolean} isMember - 是否会员
     * @param {number} level - 会员等级
     */
    setMemberStatus(isMember, level = 0) {
      this.isMember = isMember
      this.memberLevel = level
      this.updateUserInfo({ isMember, memberLevel: level })
    },

    /**
     * 设置实名状态
     * @param {boolean} isRealName - 是否实名
     */
    setRealNameStatus(isRealName) {
      this.isRealName = isRealName
      this.updateUserInfo({ isRealName })
    }
  }
})