import { getPermit, login, logout } from '@/api'
import {
  getToken,
  setToken,
  removeToken,
  setUserData,
  getUserData,
  removeUserData,
  removeUserPermit
} from '@/utils/auth'
import router, { resetRouter } from '@/router'

const getDefaultState = () => {
  return {
    token: getToken(),
    name: '',
    avatar: '',
    introduction: '',
    permits: [],
    userData: getUserData()
  }
}

const state = getDefaultState()

const mutations = {
  RESET_STATE: (state) => {
    Object.assign(state, getDefaultState())
  },
  SET_TOKEN: (state, token) => {
    state.token = token
  },
  SET_NAME: (state, name) => {
    state.name = name
  },
  SET_INTRODUCTION: (state, introduction) => {
    state.introduction = introduction
  },
  SET_AVATAR: (state, avatar) => {
    state.avatar = avatar
  },
  SET_PERMIT: (state, permits) => {
    state.permits = permits
  },
  SET_USERDATA: (state, userData) => {
    state.userData = userData
  }
}

const actions = {
  // user login
  login({ commit }, userInfo) {
    const { username, password } = userInfo
    return new Promise((resolve, reject) => {
      const f = new FormData()
      f.append('username', username)
      f.append('password', password)
      login(f).then(response => {
        const { data } = response
        data.user.licExpiredTime = data.licExpiredTime
        commit('SET_TOKEN', data.accessToken)
        commit('SET_NAME', data.user.userName)
        commit('SET_AVATAR', data.user.userAvatar)
        commit('SET_INTRODUCTION', data.user.userName)
        commit('SET_USERDATA', data.user)
        setToken(data.accessToken)
        setUserData(data.user)
        resolve()
      }).catch(error => {
        reject(error)
      })
    })
  },

  updateUserData({ commit }, userData) {
    commit('SET_USERDATA', userData)
    setUserData(userData)
  },
  // get user routes
  async getRoute({ commit, state }) {
    return new Promise((resolve, reject) => {
      getPermit(state.token).then(response => {
        const { code, data } = response
        if (code !== 200) {
          reject('用户信息验证失败，请重新登录！')
          return
        }
        // setUserPermit(data)
        commit('SET_PERMIT', data.permitList || data)
        resolve(data)
      }).catch(error => {
        reject(error)
      })
    })
  },

  // user logout
  logout({ commit }) {
    return new Promise((resolve, reject) => {
      logout().then(response => {
        const { code, data } = response
        if (code !== 200) {
          reject('退出系统出错，请联系管理员！')
          return
        }
        commit('SET_TOKEN', '')
        commit('SET_PERMIT', [])
        removeToken() // must remove  token  first
        removeUserData()
        removeUserPermit()
        resetRouter()
        resolve(data)
      }).catch(error => {
        reject(error)
      })
    })
  },

  // remove token
  resetToken({ commit }) {
    return new Promise(resolve => {
      commit('SET_TOKEN', '')
      commit('SET_PERMIT', [])
      removeToken() // must remove  token  first
      removeUserData()
      removeUserPermit()
      resetRouter()

      resolve()
    })
  },

  // dynamically modify permission
  async refreshPermit({ commit, dispatch }, permit) {
    // reset routes
    resetRouter()

    // get user permits
    const permits = await dispatch('user/getRoute')

    // generate accessible routes mapLayer based on permits
    const accessRoutes = await dispatch('permission/generateRoutes', permits)

    // dynamically add accessible routes
    router.addRoutes(accessRoutes)
  }
}

export default {
  namespaced: true,
  state,
  mutations,
  actions
}