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: ''
    }
  }
  
  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
    }
  }
  
  const actions = {
    // user login
    login({ commit }, userInfo) {
      const { username, password } = userInfo
      return new Promise((resolve, reject) => {
        login({ username: username.trim(), password: password }).then(response => {
          const { data } = response
          commit('SET_TOKEN', data.token)
          setToken(data.token)
          resolve()
        }).catch(error => {
          reject(error)
        })
      })
    },
  
    // get user info
    getInfo({ commit, state }) {
      return new Promise((resolve, reject) => {
        getInfo(state.token).then(response => {
          const { data } = response
  
          if (!data) {
            reject('Verification failed, please Login again.')
          }
  
          const { name, avatar } = data
  
          commit('SET_NAME', name)
          commit('SET_AVATAR', avatar)
          resolve(data)
        }).catch(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
  }