import { login, getUserInfo } from '@/api/user'
import { getToken, setToken, removeToken } from '@/utils/auth'
import router, { resetRouter } from '@/router'
import Cookies from 'js-cookie'

const state = {
  token: getToken(),
  name: '',
  avatar: '',
  introduction: '',
  roles: [],
  menus: [],
  username: Cookies.get('username') || ''
}

const mutations = {
  SET_TOKEN: (state, token) => {
    state.token = token
  },
  SET_INTRODUCTION: (state, introduction) => {
    state.introduction = introduction
  },
  SET_NAME: (state, name) => {
    state.name = name
  },
  SET_AVATAR: (state, avatar) => {
    state.avatar = avatar
  },
  SET_MENUS: (state, menus) => {
    state.menus = menus
  },
  SET_ROLES: (state, roles) => {
    state.roles = roles
  },
  SET_USERNAME: (state, username) => {
    state.username = username
  }
}

const actions = {
  // user login
  login({ commit }, userInfo) {
    const { username, password } = userInfo
    return new Promise((resolve, reject) => {
      login({ mobile: String(username).trim(), password }).then(res => {
        console.log(res)
        if (res.code === 0) {
          const { token, name } = res.data
          commit('SET_TOKEN', token)
          commit('SET_USERNAME', name)
          Cookies.set('username', name)
          setToken(token)
          resolve()
        } else {
          reject(res)
        }
      }).catch(error => {
        reject(error)
      })
    })
  },

  // get user info
  getInfo({ commit, state }) {
    return new Promise((resolve, reject) => {
      getUserInfo(state.token).then(response => {
        const { data } = response

        if (!data) {
          reject('Verification failed, please Login again.')
        }

        const { roles, name, avatar, introduction, menus } = data

        // roles must be a non-empty array
        if (!menus || menus.length <= 0) {
          reject('getInfo: menus must be a non-null array!')
        }

        commit('SET_ROLES', roles || [])
        commit('SET_NAME', name)
        commit('SET_AVATAR', avatar)
        commit('SET_MENUS', menus)
        commit('SET_INTRODUCTION', introduction)
        resolve(data)
      }).catch(error => {
        reject(error)
      })
    })
  },

  // user logout
  logout({ commit, state, dispatch }) {
    return new Promise((resolve, reject) => {
      removeToken()
      resetRouter()
      dispatch('tagsView/delAllViews', null, { root: true })
      commit('SET_TOKEN', '')
      commit('SET_ROLES', [])
      commit('SET_MENUS', [])
      commit('SET_USERNAME')
      Cookies.set('username', '')
      localStorage.clear()
      resolve()
      // logout(state.token).then(() => {
      //   commit('SET_TOKEN', '')
      //   commit('SET_ROLES', [])
      //   removeToken()
      //   resetRouter()

      //   // reset visited views and cached views
      //   // to fixed https://github.com/PanJiaChen/vue-element-admin/issues/2485
      //   dispatch('tagsView/delAllViews', null, { root: true })

      //   resolve()
      // }).catch(error => {
      //   reject(error)
      // })
    })
  },

  // remove token
  resetToken({ commit }) {
    return new Promise(resolve => {
      commit('SET_TOKEN', '')
      commit('SET_ROLES', [])
      removeToken()
      resolve()
    })
  },

  // dynamically modify permissions
  changeRoles({ commit, dispatch }, role) {
    return new Promise(async resolve => {
      const token = role + '-token'

      commit('SET_TOKEN', token)
      setToken(token)

      const { roles } = await dispatch('getInfo')

      resetRouter()

      // generate accessible routes map based on roles
      const accessRoutes = await dispatch('permission/generateRoutes', roles, { root: true })

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

      // reset visited views and cached views
      dispatch('tagsView/delAllViews', null, { root: true })

      resolve()
    })
  }
}

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