text: import _defineProperty from "@babel/runtime/helpers/esm/defineProperty";
  
  function ownKeys(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); if (enumerableOnly) symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; }); keys.push.apply(keys, symbols); } return keys; }
  
  function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; if (i % 2) { ownKeys(Object(source), true).forEach(function (key) { _defineProperty(target, key, source[key]); }); } else if (Object.getOwnPropertyDescriptors) { Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)); } else { ownKeys(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } } return target; }
  
  /**
   * External dependencies
   */
  import { groupBy } from 'lodash';
  /**
   * Returns terms in a tree form.
   *
   * @param {Array} flatTerms  Array of terms in flat format.
   *
   * @return {Array} Array of terms in tree format.
   */
  
  export function buildTermsTree(flatTerms) {
    var flatTermsWithParentAndChildren = flatTerms.map(function (term) {
      return _objectSpread({
        children: [],
        parent: null
      }, term);
    });
    var termsByParent = groupBy(flatTermsWithParentAndChildren, 'parent');
  
    if (termsByParent.null && termsByParent.null.length) {
      return flatTermsWithParentAndChildren;
    }
  
    var fillWithChildren = function fillWithChildren(terms) {
      return terms.map(function (term) {
        var children = termsByParent[term.id];
        return _objectSpread({}, term, {
          children: children && children.length ? fillWithChildren(children) : []
        });
      });
    };
  
    return fillWithChildren(termsByParent['0'] || []);
  }
  //# sourceMappingURL=terms.js.map