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/*
 This file is part of GNU Taler
 (C) 2021-2024 Taler Systems S.A.

 GNU Taler is free software; you can redistribute it and/or modify it under the
 terms of the GNU General Public License as published by the Free Software
 Foundation; either version 3, or (at your option) any later version.

 GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
 A PARTICULAR PURPOSE.  See the GNU General Public License for more details.

 You should have received a copy of the GNU General Public License along with
 GNU Taler; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
 */

/**
 *
 * @author Sebastian Javier Marchano (sebasjm)
 */

import { useFormContext } from "./FormProvider.js";

interface Use {
  hasError?: boolean;
}

export function useGroupField<T>(name: keyof T): Use {
  const f = useFormContext<T>();
  if (!f) return {};

  return {
    hasError: readField(f.errors, String(name)),
  };
}

const readField = (object: any, name: string) => {
  return name
    .split(".")
    .reduce((prev, current) => prev && prev[current], object);
};