import * as Vue from 'vue'
import Main from '@/components/main'
import config from '@/config'
import { forEach, hasOneOf, objEqual } from '@/libs/tools'
const { title, cookieExpires, useI18n } = config
import lazyLoading from '@/libs/lazyLoading'

export const hasChild = (item) => {
  return item.children && item.children.length !== 0
}

const showThisMenuEle = (item, access) => {
  if (item.meta && item.meta.access && item.meta.access.length) {
    if (hasOneOf(item.meta.access, access)) return true
    else return false
  } else return true
}
/**
 * @param {Array} list 通过路由列表得到菜单列表
 * @returns {Array}
 */
export const getMenuByRouter = (list, access) => {
  let res = []
  forEach(list, (item) => {
    if (!item.meta || (item.meta && !item.meta.hideInMenu)) {
      let obj = {
        icon: (item.meta && item.meta.icon) || '',
        name: item.name,
        meta: item.meta,
      }
      if (
        (hasChild(item) || (item.meta && item.meta.showAlways)) &&
        showThisMenuEle(item, access)
      ) {
        obj.children = getMenuByRouter(item.children, access)
      }
      if (item.meta && item.meta.href) obj.href = item.meta.href
      if (showThisMenuEle(item, access)) res.push(obj)
    }
  })

  return res
}

/**
 * @param {Array} routeMetched 当前路由metched
 * @returns {Array}
 */
export const getBreadCrumbList = (route, homeRoute) => {
  let homeItem = { ...homeRoute, icon: homeRoute.meta.icon }
  let routeMetched = route.matched
  if (routeMetched.some((item) => item.name === homeRoute.name))
    return [homeItem]
  let res = routeMetched
    .filter((item) => {
      return item.meta === undefined || !item.meta.hideInBread
    })
    .map((item) => {
      let meta = { ...item.meta }
      if (meta.title && typeof meta.title === 'function') {
        meta.__titleIsFunction__ = true
        meta.title = meta.title(route)
      }
      let obj = {
        icon: (item.meta && item.meta.icon) || '',
        name: item.name,
        meta: meta,
      }
      return obj
    })
  res = res.filter((item) => {
    return !item.meta.hideInMenu
  })
  return [{ ...homeItem, to: homeRoute.path }, ...res]
}

export const getRouteTitleHandled = (route) => {
  let router = { ...route }
  let meta = { ...route.meta }
  let title = ''
  if (meta.title) {
    if (typeof meta.title === 'function') {
      meta.__titleIsFunction__ = true
      title = meta.title(router)
    } else title = meta.title
  }
  meta.title = title
  router.meta = meta
  return router
}

export const showTitle = (item, vm) => {
  let { title, __titleIsFunction__ } = item.meta
  if (!title) return
  if (useI18n) {
    if (title.includes('{{') && title.includes('}}') && useI18n)
      title = title.replace(/({{[\s\S]+?}})/, (m, str) =>
        str.replace(/{{([\s\S]*)}}/, (m, _) => vm.$t(_.trim()))
      )
    else if (__titleIsFunction__) title = item.meta.title
    else title = vm.$t(item.name)
  } else title = (item.meta && item.meta.title) || item.name
  return title
}

/**
 * @description 本地存储和获取标签导航列表
 */
export const setTagNavListInLocalstorage = (list) => {
  localStorage.tagNaveList = JSON.stringify(list)
}
/**
 * @returns {Array} 其中的每个元素只包含路由原信息中的name, path, meta三项
 */
export const getTagNavListFromLocalstorage = () => {
  const list = localStorage.tagNaveList
  return list ? JSON.parse(list) : []
}

/**
 * @description 本地存储路由列表
 */
export const setRouteListInLocalstorage = (list) => {
  console.log(list)
  localStorage.routeList = JSON.stringify(list)
}
/**
 * @returns {Array} 获取本地存储的路由列表
 */
export const getRouteListFromLocalstorage = () => {
  const list = localStorage.routeList
  return list ? JSON.parse(list) : []
}

/**
 * @param {Array} routers 路由列表数组
 * @description 用于找到路由列表中name为home的对象
 */
export const getHomeRoute = (routers, homeName = 'home') => {
  let i = -1
  let len = routers.length
  let homeRoute = {}
  while (++i < len) {
    let item = routers[i]
    if (item.children && item.children.length) {
      let res = getHomeRoute(item.children, homeName)
      if (res.name) return res
    } else {
      if (item.name === homeName) homeRoute = item
    }
  }
  return homeRoute
}

/**
 * @param {*} list 现有标签导航列表
 * @param {*} newRoute 新添加的路由原信息对象
 * @description 如果该newRoute已经存在则不再添加
 */
export const getNewTagList = (list, newRoute) => {
  const { name, path, meta } = newRoute
  let newList = [...list]
  if (newList.findIndex((item) => item.name === name) >= 0) return newList
  else newList.push({ name, path, meta })
  return newList
}

/**
 * @param {*} access 用户权限数组，如 ['super_admin', 'admin']
 * @param {*} route 路由列表
 */
const hasAccess = (access, route) => {
  if (route.meta && route.meta.access)
    return hasOneOf(access, route.meta.access)
  else return true
}

/**
 * 权鉴
 * @param {*} name 即将跳转的路由name
 * @param {*} access 用户权限数组
 * @param {*} routes 路由列表
 * @description 用户是否可跳转到该页
 */
export const canTurnTo = (name, access, routes) => {
  const routePermissionJudge = (list) => {
    return list.some((item) => {
      if (item.children && item.children.length) {
        return routePermissionJudge(item.children)
      } else if (item.name === name) {
        return hasAccess(access, item)
      }
    })
  }

  return routePermissionJudge(routes)
}

/**
 * @param {String} url
 * @description 从URL中解析参数
 */
export const getParams = (url) => {
  const keyValueArr = url.split('?')[1].split('&')
  let paramObj = {}
  keyValueArr.forEach((item) => {
    const keyValue = item.split('=')
    paramObj[keyValue[0]] = keyValue[1]
  })
  return paramObj
}

/**
 * @param {Array} list 标签列表
 * @param {String} name 当前关闭的标签的name
 */
export const getNextRoute = (list, route) => {
  let res = {}
  if (list.length === 2) {
    res = getHomeRoute(list)
  } else {
    const index = list.findIndex((item) => routeEqual(item, route))
    if (index === list.length - 1) res = list[list.length - 2]
    else res = list[index + 1]
  }
  return res
}

/**
 * @param {Number} times 回调函数需要执行的次数
 * @param {Function} callback 回调函数
 */
export const doCustomTimes = (times, callback) => {
  let i = -1
  while (++i < times) {
    callback(i)
  }
}

/**
 * @param {Object} file 从上传组件得到的文件对象
 * @returns {Promise} resolve参数是解析后的二维数组
 * @description 从Csv文件中解析出表格，解析成二维数组
 */
export const getArrayFromFile = (file) => {
  let nameSplit = file.name.split('.')
  let format = nameSplit[nameSplit.length - 1]
  return new Promise((resolve, reject) => {
    let reader = new FileReader()
    reader.readAsText(file) // 以文本格式读取
    let arr = []
    reader.onload = function (evt) {
      let data = evt.target.result // 读到的数据
      let pasteData = data.trim()
      arr = pasteData
        .split(/[\n\u0085\u2028\u2029]|\r\n?/g)
        .map((row) => {
          return row.split('\t')
        })
        .map((item) => {
          return item[0].split(',')
        })
      if (format === 'csv') resolve(arr)
      else reject(new Error('[Format Error]:你上传的不是Csv文件'))
    }
  })
}

/**
 * @param {Array} array 表格数据二维数组
 * @returns {Object} { columns, tableData }
 * @description 从二维数组中获取表头和表格数据，将第一行作为表头，用于在iView的表格中展示数据
 */
export const getTableDataFromArray = (array) => {
  let columns = []
  let tableData = []
  if (array.length > 1) {
    let titles = array.shift()
    columns = titles.map((item) => {
      return {
        title: item,
        key: item,
      }
    })
    tableData = array.map((item) => {
      let res = {}
      item.forEach((col, i) => {
        res[titles[i]] = col
      })
      return res
    })
  }
  return {
    columns,
    tableData,
  }
}

export const findNodeUpper = (ele, tag) => {
  if (ele.parentNode) {
    if (ele.parentNode.tagName === tag.toUpperCase()) {
      return ele.parentNode
    } else {
      return findNodeUpper(ele.parentNode, tag)
    }
  }
}

export const findNodeUpperByClasses = (ele, classes) => {
  let parentNode = ele.parentNode
  if (parentNode) {
    let classList = parentNode.classList
    if (
      classList &&
      classes.every((className) => classList.contains(className))
    ) {
      return parentNode
    } else {
      return findNodeUpperByClasses(parentNode, classes)
    }
  }
}

export const findNodeDownward = (ele, tag) => {
  const tagName = tag.toUpperCase()
  if (ele.childNodes.length) {
    let i = -1
    let len = ele.childNodes.length
    while (++i < len) {
      let child = ele.childNodes[i]
      if (child.tagName === tagName) return child
      else return findNodeDownward(child, tag)
    }
  }
}

export const showByAccess = (access, canViewAccess) => {
  return hasOneOf(canViewAccess, access)
}

/**
 * @description 根据name/params/query判断两个路由对象是否相等
 * @param {*} route1 路由对象
 * @param {*} route2 路由对象
 */
export const routeEqual = (route1, route2) => {
  const params1 = route1.params || {}
  const params2 = route2.params || {}
  const query1 = route1.query || {}
  const query2 = route2.query || {}
  return (
    route1.name === route2.name
  ) /*&& objEqual(params1, params2) && objEqual(query1, query2)*/
}

/**
 * 判断打开的标签列表里是否已存在这个新添加的路由对象
 */
export const routeHasExist = (tagNavList, routeItem) => {
  //debugger
  let len = tagNavList.length
  let res = false
  doCustomTimes(len, (index) => {
    if (routeEqual(tagNavList[index], routeItem)) res = true
  })
  return res
}

export const localSave = (key, value) => {
  localStorage.setItem(key, value)
}

export const localRead = (key) => {
  return localStorage.getItem(key) || ''
}

// scrollTop animation
export const scrollTop = (el, from = 0, to, duration = 500, endCallback) => {
  if (!window.requestAnimationFrame) {
    window.requestAnimationFrame =
      window.webkitRequestAnimationFrame ||
      window.mozRequestAnimationFrame ||
      window.msRequestAnimationFrame ||
      function (callback) {
        return window.setTimeout(callback, 1000 / 60)
      }
  }
  const difference = Math.abs(from - to)
  const step = Math.ceil((difference / duration) * 50)

  const scroll = (start, end, step) => {
    if (start === end) {
      endCallback && endCallback()
      return
    }

    let d = start + step > end ? end : start + step
    if (start > end) {
      d = start - step < end ? end : start - step
    }

    if (el === window) {
      window.scrollTo(d, d)
    } else {
      el.scrollTop = d
    }
    window.requestAnimationFrame(() => scroll(d, end, step))
  }
  scroll(from, to, step)
}

/**
 * @description 根据当前跳转的路由设置显示在浏览器标签的title
 * @param {Object} routeItem 路由对象
 * @param {Object} vm Vue实例
 */
export const setTitle = (routeItem, vm) => {
  const handledRoute = getRouteTitleHandled(routeItem)
  const pageTitle = showTitle(handledRoute, vm)
  const resTitle = pageTitle ? `${title} - ${pageTitle}` : title
  window.document.title = resTitle
}

//---------------------------分割线---------------------------------------------//

/**
 * 动态的初始化路由
 * @param vm
 */
export const initRouter = (vm, data) => {
  const constRoutes = []
  const otherRoutes = []

  // 404路由需要和动态路由一起加载
  const otherRouter = [
    /*{
    path: '/!*',
    name: 'error_404',
    meta: {
      title: '404-页面不存在'
    },
    component: import('@/view/error-page/404.vue')
  },
   {
    path: '/401',
    name: 'error_401',
    meta: {
      hideInMenu: true
    },
    component: () => import('@/view/error-page/401.vue')
  },
    {
      path: '/500',
      name: 'error_500',
      meta: {
        hideInMenu: true
      },
      component: () => import('@/view/error-page/500.vue')
    }*/
  ]

  // 判断用户是否登录
  let userInfo = vm.$store.state.user
  if (userInfo == null || userInfo == '' || userInfo == undefined) {
    // 未登录
    return
  }
  // 加载菜单
  let menuData = data
  if (menuData == null || menuData == '' || menuData == undefined) {
    return
  }
  // 顶部菜单
  let navList = []
  menuData.forEach((e) => {
    let nav = {
      name: e.name,
      title: e.name,
      icon: e.icon,
    }
    navList.push(nav)
  })
  if (navList.length < 1) {
    return
  }
  // 存入vuex
  //vm.$store.commit('addTag', {route:navList,type:'push'});
  //vm.$store.commit('setTagNavList');
  /*let currNav = window.localStorage.getItem('currNav')
  if (currNav) {
    // 读取缓存title
    for (var item of navList) {
      if (item.name == currNav) {
        vm.$store.commit('setCurrNavTitle', item.title);
        break;
      }
    }
  } else {
    // 默认第一个
    currNav = navList[0].name;
    vm.$store.commit('setCurrNavTitle', navList[0].title);
  }
  vm.$store.commit('setCurrNav', currNav);
  for (var item of menuData) {
    if (item.name == currNav) {
      // 过滤
      menuData = item.children;
      break;
    }
  }*/
  initRouterNode(constRoutes, menuData)
  /*initRouterNode(otherRoutes, otherRouter);*/
  // 添加主界面路由
  vm.$store.commit('updateAppRouter', constRoutes)
  // 添加全局路由
  //vm.$store.commit('updateDefaultRouter', otherRoutes);
  // 刷新界面菜单
  //vm.$store.commit('updateMenulist', constRoutes);

  /*let tagsList = [];
  vm.$store.state.app.realRoutes.map((item) => {
    if (item.children.length <= 1) {
      tagsList.push(item.children[0]);
    } else {
      tagsList.push(...item.children);
    }
  });*/
  //vm.$store.commit('setTagsList', tagsList);
  //vm.$store.commit('setTagNavList', tagsList);
}

// 生成路由节点
/*const initRouterNode = (routers, data) => {

  for (var item of data) {
    let menu = Object.assign({}, item);
    // menu.component = import(`@/views/${menu.component}.vue`);
    menu.component = lazyLoading(menu.component);

    if (item.children && item.children.length > 0) {
      menu.children = [];
      initRouterNode(menu.children, item.children);
    }

    let meta = {};
    // 给页面添加权限、标题、第三方网页链接
    meta.permTypes = menu.permTypes ? menu.permTypes : null;
    meta.title = menu.title ? menu.title + " - XBoot前后端分离开发平台 By: Exrick" : null;
    meta.url = menu.url ? menu.url : null;
    menu.meta = meta;

    routers.push(menu);
  }
};*/
const initRouterNode = (routers, menuList) => {
  let menuTmp = {} //临时对象,key是菜单id.用来收集菜单父子关系的
  //避免使用嵌套循环.先循环一次,将菜单的pid做key保存起来
  menuList.forEach((menu) => {
    //debugger
    if (menuTmp[menu.pid]) {
      //已存在key,
      menuTmp[menu.pid].push(menu)
    } else {
      menuTmp[menu.pid] = [menu]
    }
  })
  menuList.forEach((menu) => {
    let route = {}
    if (menu.type == 1) {
      //一级菜单
      route = {
        path: '',
        name: menu.code,
        component: Main,
        meta: {
          /*hideInMenu: true,*/
          /*notCache: true,*/
          icon: 'logo-buffer',
          showAlways: true,
          title: menu.name,
        },
        children: [],
      }
      //debugger
      if (menuTmp[menu.id]) {
        //将子菜单循环配置一下
        menuTmp[menu.id].forEach((childMenu) => {
          let link_href = null
          if (childMenu.type == 3) {
            link_href = childMenu.href
          }
          let obj = {
            path: childMenu.code,
            name: childMenu.code,
            meta: {
              /* hideInMenu: false,*/
              title: childMenu.name,
              /*notCache: true,*/
              icon: childMenu.icon,
              href: link_href,
            },
            component: Vue.defineAsyncComponent(
              () => import('@/view/' + childMenu.href)
            ),
          }
          route.children.push(obj)
        })
      }
      routers.push(route)
    }
  })
}
