/* eslint-disable */
/* *
 * @Author: jianglei
 * @Date:   2017-10-12 12:06:49
 */
"use strict";
import Vue from "vue";
export default function treeToArray(data, expandAll, parent = null, level = null) {
  let tmp = [];
  Array.from(data).forEach(function(record) {
    if (record._expanded === undefined) {
      Vue.set(record, "_expanded", expandAll);
    }
    let _level = 1;
    if (level !== undefined && level !== null) {
      _level = level + 1;
    }
    Vue.set(record, "_level", _level);
    //  如果有父元素
    if (parent) {
      Vue.set(record, "parent", parent);
    }
    tmp.push(record);
    if (record.children && record.children.length > 0 && record._expanded) {
      const children = treeToArray(record.children, expandAll, record, _level);
      tmp = tmp.concat(children);
    }
  });
  return tmp;
}