Admin.UI/src/utils/index.js

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import dayjs from 'dayjs'

export function formatTime(date, pattern) {
  return dayjs(date).format(pattern)
}

export function deepClone(data) {
  return JSON.parse(JSON.stringify(data))
}

export function treeToList(tree = [], idValue = null, childrenField = 'children', idField = 'id', parentIdField = 'parentId') {
  const list = []
  if (!childrenField) childrenField = 'children'
  for (let i = 0, j = tree.length; i < j; i++) {
    const d = tree[i]
    const id = d[idField]
    if (!list.some(l => l[idField] === id)) {
      list.push(d)
    }
    if (parentIdField) d[parentIdField] = idValue
    const children = d[childrenField]
    if (children && children.length > 0) {
      const items = treeToList(children, id, childrenField, idField, parentIdField)
      const values = items.values()
      for (const v of values) {
        if (!list.some(l => l[idField] === v[idField])) {
          list.push(v)
        }
      }
    }
  }
  return list
}

export function listToTree(list = [], root = null, idField = 'id', parentIdField = 'parentId') {
  const tree = []
  const hash = {}
  const childrenField = 'children'
  for (let i = 0, l = list.length; i < l; i++) {
    const d = list[i]
    hash[d[idField]] = d
  }

  for (let i = 0, l = list.length; i < l; i++) {
    const d = list[i]
    const parentID = d[parentIdField]
    if (parentID === '' || parentID === 0) {
      tree.push(d)
      continue
    }

    const parent = hash[parentID]
    if (!parent) {
      tree.push(d)
      continue
    }

    let children = parent[childrenField]
    if (!children) {
      children = []