import PerfectScrollbar from "perfect-scrollbar";

//top置顶按钮公共方法
export function toTop(type, wrap) {
  if (type == 'el') {
    let currentTop = wrap.scrollTop;
    let interval = currentTop/10;
    let intervalFunc = setInterval(function(){ //花200ms分10次回到顶部，模拟动画效果
      if (currentTop == 0) {
        clearInterval(intervalFunc);
      } else {
        currentTop = (currentTop - interval) < interval*0.5 ? 0 : currentTop - interval;
        wrap.scrollTop = currentTop;
      }
    }, 20);
  } else {
    let els = document.querySelectorAll(".el-table__body-wrapper");
    if (wrap || wrap == 0) { //指定index的table__body
      let currentTop = els[wrap].scrollTop;
      let interval = currentTop/10;
      let intervalFunc = setInterval(function(){ //花200ms分10次回到顶部，模拟动画效果
        if (currentTop == 0) {
          clearInterval(intervalFunc);
        } else {
          currentTop = (currentTop - interval) < interval*0.5 ? 0 : currentTop - interval;
          els[wrap].scrollTop = currentTop;
        }
      }, 20);
    } else { //所有table__body
      for (let i = 0; i < els.length; i++) {
        let currentTop = els[i].scrollTop;
        let interval = currentTop/10;
        let intervalFunc = setInterval(function(){ //花200ms分10次回到顶部，模拟动画效果
          if (currentTop == 0) {
            clearInterval(intervalFunc);
          } else {
            currentTop = (currentTop - interval) < interval*0.5 ? 0 : currentTop - interval;
            els[i].scrollTop = currentTop;
          }
        }, 20);
      }
    }
  }
}

/*弹窗点击外部后关闭*/
const exceptClassName = ["config-dropdown", "nz-pop", "el-picker", "chart-box-dropdown", 'metric-dropdown', 'el-cascader__dropdown', "asset-dropdown", "no-style-class", 'el-message-box','nz-dashboard-dropdown']; //clickoutside排除的class(白名单)  no-style-class：没有任何样式的class
export const clickoutside = {
  // 初始化指令
  bind(el, binding, vnode) {
    function documentHandler(e) {
      if (el.contains(e.target)) {
        return false;
      } else {
        let flag = true;
        top: for (let i = 0; i < e.path.length; i++) {
          for (let j = 0; j < exceptClassName.length; j++) {
            if (e.path[i].className && e.path[i].className.indexOf(exceptClassName[j]) != -1) {
              flag = false;
              break top;
            }
          }
        }
        if (!flag) {
          return false;
        }
      }
      // 判断指令中是否绑定了函数
      if (binding.expression) {
        // 如果绑定了函数 则调用那个函数，此处binding.value就是handleClose方法
        if (binding.arg) {
          binding.value(e, binding.arg);
        } else {
          binding.value(e);
        }

      }
    }

    // 给当前元素绑定个私有变量，方便在unbind中可以解除事件监听
    el.__vueClickOutside__ = documentHandler;
    document.addEventListener('mousedown', documentHandler);
  },
  unbind(el, binding) {
    // 解除事件监听
    document.removeEventListener('mousedown', el.__vueClickOutside__);
    delete el.__vueClickOutside__;
  },
};

/*el-table自定义滚动条*/
const el_scrollBar = el => {
  if (el._ps_ instanceof PerfectScrollbar) {
    el._ps_.update();
  } else {
    //el上挂一份属性
    el._ps_ = new PerfectScrollbar(el, {minScrollbarLength: 25});
  }
};
export const scrollBar = {
  inserted(el, binding, vnode) {
    const { arg } = binding;
    if (arg === "el-table") {
      el = el.querySelector(".el-table__body-wrapper");
      !el && console.warn("未发现className为el-table__body-wrapper的dom");
    } else if (arg === "el-dropdown") {
      el = document.querySelector(".el-dropdown-menu");
      !el && console.warn("未发现className为el-dropdown-menu的dom");
    } else if (arg == "legend") {
      el = el.querySelector(".legend-container");
      !el && console.warn("未发现className为legend-container的dom");
    }

    // 启用x轴后不让原生滚动条出来作乱
    if (el) {
      vnode.context.$nextTick(() => {
        if (arg === "xterm") {
          el = el.querySelector(".xterm-viewport");
          !el && console.warn("未发现className为xterm-viewport的dom");
        }
        if(arg==="metric-label-cascader"){
          el = el.querySelector(".el-cascader__tags");
          !el && console.warn("未发现className为el-cascader__tags的dom");
        }
        el.classList.add("ps");
        el.addEventListener("ps-scroll-y", () => {
          el.classList.add("ps");
        });
        el.addEventListener("ps-scroll-x", () => {
          el.classList.add("ps");
        });
        //el上挂一份属性
        el_scrollBar(el);
      });

      const rules = ["fixed", "absolute", "relative"];
      if (!rules.includes(window.getComputedStyle(el, null).position)) {
        console.error(
          `perfect-scrollbar所在的容器的position属性必须是以下之一：${rules.join(
            "、"
          )}`
        );
      }
    }
  },
  componentUpdated(el, binding, vnode, oldVnode) {
    const { arg, value } = binding;
    if (arg === "el-table") {
      el = el.querySelector(".el-table__body-wrapper");
      !el && console.warn("未发现className为el-table__body-wrapper的dom");
    } else if (arg === "el-dropdown") {
      el = document.querySelector(".el-dropdown-menu");
      !el && console.warn("未发现className为el-dropdown-menu的dom");
    }else if (arg === "xterm") {
      el = el.querySelector(".xterm-viewport");
      !el && console.warn("未发现className为xterm-viewport的dom");
    }else if(arg==="metric-label-cascader"){
      el = el.querySelector(".el-cascader__tags");
      !el && console.warn("未发现className为el-cascader__tags的dom");
    }
    setTimeout(() => {
      el.classList.add("ps");
      el.classList.add("ps--active-y");
      el._ps_.update();
    }, 1500)

    try {
      vnode.context.$nextTick(() => {
        el_scrollBar(el);
        if (value) {
          el.querySelector(".ps__rail-x").classList.add("ps-scroll-" + value);
          el.querySelector(".ps__rail-y").classList.add("ps-scroll-" + value);
        }
      });
    } catch (error) {
      console.error(error);
      el_scrollBar(el);
    }
  },
};

// 底部上滑框窗口控制
export const bottomBoxWindow = {
  // 鼠标拖动二级列表
  listResize(vm, e) {
    window.resizing = true;
    let mainListDom = document.querySelector(".main-list-with-sub"); //主列表
    let subListDom = document.querySelector(".sub-list"); //副列表
    let contentRightDom = document.querySelector(".content-right"); //右侧内容区
    let contentRightHeight = contentRightDom.offsetHeight;//可视高度
    //得到点击时俩dom的初始高度：
    let mainInitialHeight = mainListDom.offsetHeight;
    let subInitialHeight = subListDom.offsetHeight;
    //点击时鼠标的Y轴位置
    let mouseInitialY = e.clientY;

    document.onmousemove = (e) => {
      window.resizing = true;
      mainListDom.classList.remove('main-and-sub-transition');
      subListDom.classList.remove('main-and-sub-transition');
      e.preventDefault();
      //得到鼠标拖动的距离
      let mouseMoveY = Math.abs(e.clientY - mouseInitialY);

      //往上方拖动：
      if (e.clientY < mouseInitialY) {
        vm.toTopBtnTop = mainInitialHeight-mouseMoveY+20+'px';
        mainListDom.style.height = mainInitialHeight-mouseMoveY+'px';
        subListDom.style.height = subInitialHeight+mouseMoveY+'px';
      }
      //往下方拖动：
      if (e.clientY > mouseInitialY) {
        vm.toTopBtnTop = mainInitialHeight+mouseMoveY+20+'px';
        mainListDom.style.height = mainInitialHeight+mouseMoveY+'px';
        subListDom.style.height = subInitialHeight-mouseMoveY+'px';
      }

      // 主、副列表最小高度限制为15px; 23是因为拖动区域有8的高度
      if(parseInt(mainListDom.style.height) > contentRightHeight-23){
        vm.toTopBtnTop = contentRightHeight+5+'px';
        mainListDom.style.height = contentRightHeight-23+'px';
      }
      if(parseInt(mainListDom.style.height) <= 15){
        vm.toTopBtnTop = '35px';
        mainListDom.style.height = '15px';
      }
      if(parseInt(subListDom.style.height) > contentRightHeight-23){
        subListDom.style.height = contentRightHeight-23+'px';
      }
      if(parseInt(subListDom.style.height) <= 15){
        subListDom.style.height = '15px';
      }
      //当主副列表可视区域小于一定值时，不展示内容
      if(parseInt(mainListDom.style.height) <= 100){
        if (vm.mainResizeShow) {
          vm.mainResizeShow = false;
        }
      } else {
        if (!vm.mainResizeShow) {
          vm.mainResizeShow = true;
        }
      }
      if(parseInt(subListDom.offsetHeight) <= 100){
        if (vm.subResizeShow) {
          vm.subResizeShow = false;
        }
      } else {
        if (!vm.subResizeShow) {
          vm.subResizeShow = true;
        }
      }
    };
    document.onmouseup = () => {
      window.resizing = false;
      mainListDom.classList.add('main-and-sub-transition');
      subListDom.classList.add('main-and-sub-transition');
      document.onmousemove = null;
    }
  },
  exitFullScreen(vm) {
    window.resizing = true;
    let contentRightDom = document.querySelector(".content-right"); //右侧内容区
    let contentRightHeight = contentRightDom.offsetHeight;//可视高度
    //主列表
    document.querySelector(".main-list-with-sub").style.height = vm.mainListHeight ? vm.mainListHeight + 'px' : 'calc(50% - 4px)';

    //副列表
    document.querySelector(".sub-list").style.height = vm.mainListHeight ? contentRightHeight-vm.mainListHeight-9 + 'px' : 'calc(50% - 4px)';
    setTimeout(() => {
      vm.isFullScreen = false;
      if (document.querySelector(".main-list-with-sub").offsetHeight >= 100) {
        vm.mainResizeShow = true;
      }
      if (document.querySelector(".sub-list").offsetHeight >= 100) {
        vm.subResizeShow = true;
      }
      window.resizing = false;
    }, 210);
  },
  fullScreen(vm) {
    window.resizing = true;
    let contentRightDom = document.querySelector(".content-right"); //右侧内容区
    let contentRightHeight = contentRightDom.offsetHeight;//可视高度
    vm.isFullScreen = true;
    //主列表
    vm.mainListHeight = document.querySelector(".main-list-with-sub").offsetHeight; //记录全屏前主列表的高度
    document.querySelector(".main-list-with-sub").style.height = '0';
    vm.mainResizeShow = false;
    //副列表
    document.querySelector(".sub-list").style.height = contentRightHeight + 'px';
    window.resizing = false;
  },
  showSubListWatch(vm, n) {
    vm.inTransform = n;
    if (!n) {
      vm.mainTableHeight = vm.$tableHeight.normal; //重置table的高度
      vm.toTopBtnTop = vm.$tableHeight.toTopBtnTop;
      vm.isFullScreen = false;
      //移动分页组件的位置
      let paginationTop = document.querySelector(".pagination-top");
      let paginationBottom = document.querySelector(".pagination-bottom");
      paginationTop.classList.remove("display-none");
      if (paginationTop.classList.contains("pagination-top-show")) {
        paginationTop.classList.remove("pagination-top-show");
      }
      if (!paginationTop.classList.contains("pagination-top-hide")) {
        paginationTop.classList.add("pagination-top-hide");
      }
      setTimeout(() => {
        paginationTop.classList.add("display-none");
        paginationBottom.appendChild(paginationTop.removeChild(document.querySelector(".pagination")));
      }, 210);

      // 主列表恢复全屏
      vm.mainResizeShow = vm.subResizeShow = true;
      document.querySelector('.main-list').style.height = "";
      //副列表高度清空
      document.querySelector(".sub-list").style.height = '';
    } else {
      vm.mainTableHeight = vm.$tableHeight.openSubList.mainList; //重置table高度
      vm.toTopBtnTop = vm.$tableHeight.openSubList.toTopBtnTop;
      //移动分页组件的位置
      let paginationTop = document.querySelector(".pagination-top");
      paginationTop.appendChild(document.querySelector(".pagination-bottom").removeChild(document.querySelector(".pagination")));
      paginationTop.classList.remove("display-none");
      setTimeout(() => {
        if (paginationTop.classList.contains("pagination-top-hide")) {
          paginationTop.classList.remove("pagination-top-hide");
        }
        if (!paginationTop.classList.contains("pagination-top-show")) {
          paginationTop.classList.add("pagination-top-show");
        }
      }, 210);
    }
  }
};
export function stringTimeParseToUnix(stringTime){
  let time=new Date(stringTime).getTime();
  return time/1000;
}

export function unixTimeParseToString(unixTime,fmt='yyyy-MM-dd hh:mm:ss'){
  let date=new Date(unixTime * 1000);
  var o = {
    "M+" : date.getMonth()+1,                 //月份
    "d+" : date.getDate(),                    //日
    "h+" : date.getHours(),                   //小时
    "m+" : date.getMinutes(),                 //分
    "s+" : date.getSeconds(),                 //秒
    "q+" : Math.floor((date.getMonth()+3)/3), //季度
    "S"  : date.getMilliseconds()             //毫秒
  };
  if(/(y+)/.test(fmt))
    fmt=fmt.replace(RegExp.$1, (date.getFullYear()+"").substr(4 - RegExp.$1.length));
  for(var k in o)
    if(new RegExp("("+ k +")").test(fmt))
      fmt = fmt.replace(RegExp.$1, (RegExp.$1.length==1) ? (o[k]) : (("00"+ o[k]).substr((""+ o[k]).length)));
  return fmt;
}