import defaultSettings from '@/settings'

const { sideTheme, showSettings, tagsView, fixedHeader, sidebarLogo, dynamicTitle, fontSize } = defaultSettings

const storageSetting = JSON.parse(localStorage.getItem('layout-setting')) || ''
const isPrototypeLayout = storageSetting.layoutVersion === 'prototype-v1'
const state = {
  title: '',
  theme: isPrototypeLayout ? (storageSetting.theme || '#1890ff') : '#1890ff',
  // Old saved settings belong to the former top-navigation layout. Start the
  // new left-menu layout with the light theme, then persist later selections.
  sideTheme: isPrototypeLayout ? (storageSetting.sideTheme || sideTheme) : sideTheme,
  showSettings: showSettings,
  // The project now uses a fixed left navigation layout. Ignore the old
  // persisted TopNav value so existing users are switched to the new layout.
  topNav: false,
  tagsView: isPrototypeLayout && storageSetting.tagsView !== undefined ? storageSetting.tagsView : tagsView,
  fixedHeader: isPrototypeLayout && storageSetting.fixedHeader !== undefined ? storageSetting.fixedHeader : fixedHeader,
  sidebarLogo: isPrototypeLayout && storageSetting.sidebarLogo !== undefined ? storageSetting.sidebarLogo : sidebarLogo,
  dynamicTitle: storageSetting.dynamicTitle === undefined ? dynamicTitle : storageSetting.dynamicTitle,
  fontSize: isPrototypeLayout && storageSetting.fontSize !== undefined ? storageSetting.fontSize : fontSize
}
const mutations = {
  CHANGE_SETTING: (state, { key, value }) => {
    if (state.hasOwnProperty(key)) {
      state[key] = value
    }
  }
}

const actions = {
  // 修改布局设置
  changeSetting({ commit }, data) {
    commit('CHANGE_SETTING', data)
  },
  // 设置网页标题
  setTitle({ commit }, title) {
    state.title = title
  }
}

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