javascript natural sort collection

sorting.js

import naturalSort from 'javascript-natural-sort';
import emojiStrip from 'emoji-strip';
import {cloneDeep} from 'lodash';

import {isOrgLib, isPersonalLib} from './directory';
import {getTitle} from './properties';

naturalSort.insensitive = true;

/**
 * Sorts given list of Gems so that libraries come first
 * @param  {Object[]} gems Input list of Gems (any)
 * @param  {Boolean} [sortOnlyLibs=false] Flag whether only libraries should be sorted or all the input Gems
 * @return {Object[]} Sorted Gems list
 */
export function sortLibraries(gems, sortOnlyLibs = false) {
  const sortedLibs = cloneDeep(gems);

  return sortedLibs.sort((lib, nextLib) => {
    return getLibrariesSorter(lib, nextLib, sortOnlyLibs);
  });
}

/**
 * Get sorter function for libraries and groups
 * @param {Object} a First gem for comparison
 * @param {Object} b Second gem for comparison
 * @param  {Boolean} sortOnlyLibs Flag whether only libraries should be sorted or all the input Gems
 * @return {Number} Result of gems comparison
 */
export function getLibrariesSorter(a, b, sortOnlyLibs) {
  // Bubble personal and account library to the top
  if (isPersonalLib(a)) {
    return -1;
  }

  if (isPersonalLib(b)) {
    return 1;
  }

  if (isOrgLib(a)) {
    return -1;
  }

  if (isOrgLib(b)) {
    return 1;
  }

  if (sortOnlyLibs) {
    return -1;
  }

  // Slicing title to 16 chars as natural sorting takes ~30 sec on long strings
  const titleA = emojiStrip(getTitle(a)).slice(0, 16);
  const titleB = emojiStrip(getTitle(b)).slice(0, 16);

  return naturalSort(titleA, titleB);
}