import { transform, isEqual, isObject } from "lodash";

/**
 * Deep diff between two object, using lodash
 * @param  {Object} object Object compared
 * @param  {Object} base   Object to compare with
 * @return {Object}        Return a new object who represent the diff
 */
export const difference = (object, base) => {
  return changes(object, base);
};

const changes = (object, base) => {
  return transform(object, (result, value, key) => {
    if (!isEqual(value, base[key])) {
      result[key] =
        isObject(value) && isObject(base[key])
          ? changes(value, base[key])
          : value;
    }
  });
};