import {
    login,
    logout,
    getInfo
  } from '@/api/user'
  import {
    getToken,
    setToken,
    removeToken
  } from '@/utils/auth'
  import {
    resetRouter
  } from '@/router'

  
  const getDefaultState = () => {
    return {
      token: getToken(),
      name: '',

      avatar: '',
      roles: []

    }
  }
  
  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_AVATAR: (state, avatar) => {
      state.avatar = avatar

    },
    SET_ROLES: (state, roles) => {
      state.roles = roles

    }
  }
  
  const actions = {
    // user login

    login({
      commit
    }, userInfo) {
      const {
        username,
        password
      } = userInfo

      return new Promise((resolve, reject) => {

        login({
          username: username.trim(),
          password: password
        }).then(response => {
          console.log('返回的数据-- step 3------>', response);
          // const { token, name, id, password } = response

          const {
            token,
            name
          } = response

          console.log('返回的数据-- step 4------>', response);
          commit('SET_TOKEN', token)
          setToken(token)

          resolve()
        }).catch(error => {

          console.log('返回的数据-- step 4.1------>', error);

          reject(error)
        })
      })
    },
  
    // get user info

    getInfo({
      commit,
      state
    }) {

      return new Promise((resolve, reject) => {
        getInfo(state.token).then(response => {

          console.log('返回的数据-- step 5------>', state);
          console.log('返回的数据-- step 5.1------>', response);

          const {
            avatar,
            id,
            name,
            password,
            roles,
            token
          } = response

          if (!roles) {

            reject('Verification failed, please Login again.')
          }

          console.error('返回的数据-- step 5.2------>', response);

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

          commit('SET_ROLES', roles)

          commit('SET_NAME', name)
          commit('SET_AVATAR', avatar)

          resolve(response)

        }).catch(error => {

          console.log('返回的数据-- step 5.3------>', error);

          reject(error)
        })
      })
    },
  
    // user logout

    logout({
      commit,
      state
    }) {

      return new Promise((resolve, reject) => {
        logout(state.token).then(() => {
          removeToken() // must remove  token  first
          resetRouter()
          commit('RESET_STATE')
          resolve()
        }).catch(error => {
          reject(error)
        })
      })
    },
  
    // remove token

    resetToken({
      commit
    }) {

      return new Promise(resolve => {
        removeToken() // must remove  token  first
        commit('RESET_STATE')
        resolve()
      })
    }
  }
  
  export default {
    namespaced: true,
    state,
    mutations,
    actions
  }