import Vue from 'vue'
import Vuex from 'vuex'

import tianpan from './modules/tianpan'
import feedback from './feedback'
import healthAlert from './health-alert'
import healthScore from './health-score'
import { switchBackVerify } from '../utils/api.js'

Vue.use(Vuex)

const store = new Vuex.Store({
  state: {
    token: '',
    userId: '',
    role: 'parent', // 用户的实际角色（数据库中的角色）
    currentRole: 'parent', // 当前视图模式（用于切换查看家长/孩子界面）
    familyId: '',
    nickname: '',
    currentChildId: '',
    currentMemberId: '', // 当前切换到的家庭成员ID（family_members表）
    currentMemberRole: '', // 当前切换到的家庭成员effectiveRole
    children: [],
    isSwitchedChild: false, // 家长切换到孩子状态的标记（已废弃，使用 currentView）
    isSwitchedMember: false, // 通过family_members切换的标记（已废弃，使用 currentView）
    currentView: 'self' // 当前视角: 'self' | 'member'
  },
  getters: {
    hasFamily: function(state) {
      return state.familyId !== '' && state.familyId !== null && state.familyId !== 0
    }
  },
  mutations: {
    setToken(state, token) {
      state.token = token
      uni.setStorageSync('token', token)
    },
    setUserInfo(state, userInfo) {
      state.userId = userInfo.userId
      state.role = userInfo.role
      state.currentRole = userInfo.role
      state.familyId = userInfo.familyId
      state.nickname = userInfo.nickname
      uni.setStorageSync('userId', userInfo.userId)
      uni.setStorageSync('role', userInfo.role)
      uni.setStorageSync('currentRole', userInfo.role)
      state.isSwitchedChild = false
      state.currentView = 'self'
      uni.setStorageSync('isSwitchedChild', false)
      uni.setStorageSync('currentView', 'self')
    },
    setChildren(state, children) {
      state.children = children
      if (children.length > 0 && !state.currentChildId) {
        state.currentChildId = children[0].id
      }
    },
    setCurrentChild(state, memberId) {
      state.currentChildId = memberId
      uni.setStorageSync('currentChildId', memberId)
    },
    // 切换到孩子模式（家长切换）
    switchToChild(state, memberId) {
      state.currentRole = 'child'
      state.currentChildId = memberId
      state.isSwitchedChild = true
      state.currentView = 'member'
      uni.setStorageSync('currentRole', 'child')
      uni.setStorageSync('currentChildId', memberId)
      uni.setStorageSync('isSwitchedChild', true)
      uni.setStorageSync('currentView', 'member')
    },
    // 切换回家长模式
    switchBackToParent(state) {
      state.currentRole = 'parent'
      state.currentChildId = ''
      state.isSwitchedChild = false
      state.currentView = 'self'
      uni.setStorageSync('currentRole', 'parent')
      uni.removeStorageSync('currentChildId')
      uni.setStorageSync('isSwitchedChild', false)
      uni.setStorageSync('currentView', 'self')
    },
    // 通过family_members切换到某个成员（member 语义统一入口）
    // 注：effectiveRole 为 'child' 时同步设置 currentChildId/isSwitchedChild 兼容旧页面
    switchToMember(state, payload) {
      state.currentRole = payload.effectiveRole
      state.currentMemberId = payload.memberId
      state.currentMemberRole = payload.effectiveRole
      state.isSwitchedMember = true
      state.currentView = 'member'
      if (payload.effectiveRole === 'child') {
        state.isSwitchedChild = true
        state.currentChildId = payload.memberId
      }
      uni.setStorageSync('currentRole', payload.effectiveRole)
      uni.setStorageSync('currentMemberId', payload.memberId)
      uni.setStorageSync('currentMemberRole', payload.effectiveRole)
      uni.setStorageSync('isSwitchedMember', true)
      uni.setStorageSync('currentView', 'member')
      if (payload.effectiveRole === 'child') {
        uni.setStorageSync('currentChildId', payload.memberId)
        uni.setStorageSync('isSwitchedChild', true)
      }
    },
    // 从family_members切换回自己
    switchBackFromMember(state) {
      var originalRole = uni.getStorageSync('role') || 'parent'
      state.currentRole = originalRole
      state.currentMemberId = ''
      state.currentMemberRole = ''
      state.isSwitchedMember = false
      state.isSwitchedChild = false
      state.currentChildId = ''
      state.currentView = 'self'
      uni.setStorageSync('currentRole', originalRole)
      uni.removeStorageSync('currentMemberId')
      uni.removeStorageSync('currentMemberRole')
      uni.setStorageSync('isSwitchedMember', false)
      uni.removeStorageSync('currentChildId')
      uni.setStorageSync('isSwitchedChild', false)
      uni.setStorageSync('currentView', 'self')
    },
    // 切换视图模式（不修改数据库中的实际角色）
    switchViewMode(state, role) {
      state.currentRole = role
      uni.setStorageSync('currentRole', role)
    },
    // 兼容旧的方法名
    switchRole(state, role) {
      state.currentRole = role
      uni.setStorageSync('currentRole', role)
    },
    logout(state) {
      state.token = ''
      state.userId = ''
      state.role = 'parent'
      state.currentRole = 'parent'
      state.familyId = ''
      state.nickname = ''
      state.currentChildId = ''
      state.currentMemberId = ''
      state.currentMemberRole = ''
      state.children = []
      state.isSwitchedChild = false
      state.isSwitchedMember = false
      state.isSwitchedTeacher = false
      state.currentView = 'self'
      uni.removeStorageSync('token')
      uni.removeStorageSync('currentRole')
      uni.removeStorageSync('isSwitchedChild')
      uni.removeStorageSync('isSwitchedTeacher')
      uni.removeStorageSync('userId')
      uni.removeStorageSync('role')
      uni.removeStorageSync('openid')
      uni.removeStorageSync('userInfo')
      uni.removeStorageSync('nickname')
      uni.removeStorageSync('currentChildId')
      uni.removeStorageSync('currentMemberId')
      uni.removeStorageSync('currentMemberRole')
      uni.removeStorageSync('isSwitchedMember')
      uni.removeStorageSync('currentView')
      uni.removeStorageSync('familyId')
    },
    markNoFamily: function(state) {
      if (state.familyId !== '' && state.familyId !== null && state.familyId !== 0) {
        console.warn('[STORE] 后端返回 5001 但本地 familyId 非空，已同步本地为无家庭态', state.familyId)
      }
      state.familyId = ''
      uni.removeStorageSync('familyId')
    },
    setFamilyId: function(state, familyId) {
      state.familyId = familyId
      // 持久化供冷启动恢复（hasFamily getter 依赖 state.familyId）
      uni.setStorageSync('familyId', familyId || '')
    }
  },
  actions: {
    login({ commit }, userInfo) {
      commit('setToken', userInfo.token)
      commit('setUserInfo', userInfo)
    },
    updateChildren({ commit }, children) {
      commit('setChildren', children)
    },
    // 兼容旧 action：切换成员前检查（effectiveRole 年龄语义保留，用于过滤未成年成员）
    switchToChildWithCheck({ commit }, { memberId, members }) {
      var hasChildren = members && members.some(function(m) {
        return m.effectiveRole === 'child'
      })
      if (!hasChildren) {
        uni.showToast({ title: '家庭中暂无可切换的未成年成员', icon: 'none' })
        return false
      }
      commit('switchToChild', memberId)
      return true
    },
    // 切换到家庭成员前检查（仅不可登录成员可切换）
    switchToMemberWithCheck({ commit }, payload) {
      var member = payload.member || {}
      if (member.isSwitchable === false) {
        uni.showToast({ title: '该成员可通过微信登录，不能切换为TA的身份', icon: 'none' })
        return false
      }
      commit('switchToMember', payload)
      return true
    },
    // 带密码校验退出成员切换（返回原用户身份）
    async switchBackWithPassword({ commit }, password) {
      if (!password) {
        uni.showToast({ title: '请输入原用户密码', icon: 'none' })
        return false
      }
      try {
        const res = await switchBackVerify(password)
        if (res.code === 200) {
          commit('switchBackFromMember')
          return true
        }
        uni.showToast({ title: res.message || '密码错误', icon: 'none' })
        return false
      } catch (e) {
        uni.showToast({ title: '校验失败', icon: 'none' })
        return false
      }
    }
  }
,
  modules: { tianpan, feedback, healthAlert, healthScore }
})

export default store