// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements.  See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership.  The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License.  You may obtain a copy of the License at
//
//   http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied.  See the License for the
// specific language governing permissions and limitations
// under the License.

// import Vue from 'vue'
import { deviceEnquire, DEVICE_TYPE } from '@/utils/device'
import { mapState } from 'vuex'

// const mixinsComputed = Vue.config.optionMergeStrategies.computed
// const mixinsMethods = Vue.config.optionMergeStrategies.methods

const mixin = {
  computed: {
    ...mapState({
      layoutMode: state => state.app.layout,
      navTheme: state => state.app.theme,
      primaryColor: state => state.app.color,
      invertedMode: state => state.app.inverted,
      fixedHeader: state => state.app.fixedHeader,
      fixSiderbar: state => state.app.fixSiderbar,
      fixSidebar: state => state.app.fixSiderbar,
      contentWidth: state => state.app.contentWidth,
      autoHideHeader: state => state.app.autoHideHeader,
      sidebarOpened: state => state.app.sidebar,
      multiTab: state => state.app.multiTab
    })
  },
  methods: {
    isTopMenu () {
      return this.layoutMode === 'topmenu'
    },
    isSideMenu () {
      return !this.isTopMenu()
    }
  }
}

const mixinDevice = {
  computed: {
    ...mapState({
      device: state => state.app.device
    })
  },
  methods: {
    isMobile () {
      return this.device === DEVICE_TYPE.MOBILE
    },
    isDesktop () {
      return this.device === DEVICE_TYPE.DESKTOP
    },
    isTablet () {
      return this.device === DEVICE_TYPE.TABLET
    }
  }
}

const AppDeviceEnquire = {
  mounted () {
    const { $store } = this
    deviceEnquire(deviceType => {
      switch (deviceType) {
        case DEVICE_TYPE.DESKTOP:
          $store.commit('TOGGLE_DEVICE', 'desktop')
          $store.dispatch('setSidebar', true)
          break
        case DEVICE_TYPE.TABLET:
          $store.commit('TOGGLE_DEVICE', 'tablet')
          $store.dispatch('setSidebar', false)
          break
        case DEVICE_TYPE.MOBILE:
        default:
          $store.commit('TOGGLE_DEVICE', 'mobile')
          $store.dispatch('setSidebar', true)
          break
      }
    })
  }
}

const mixinForm = {
  methods: {
    handleRemoveFields (form) {
      const formResult = {}
      Object.keys(form).forEach(field => {
        if (field in this.$refs && this.$refs[field] === null || this.$refs[field] === undefined) {
          return true
        }
        formResult[field] = form[field]
      })

      return formResult
    }
  }
}

export { mixin, AppDeviceEnquire, mixinDevice, mixinForm }