/*
 This file is part of GNU Taler
 (C) 2022-2024 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/>
 */
import {
  ChallengerResultByMethod,
  TalerHttpError,
} from "@gnu-taler/taler-util";
import { useChallengerApiContext } from "@gnu-taler/web-util/browser";
import _useSWR, { SWRHook, mutate } from "swr";
import { SessionId } from "./session.js";
const useSWR = _useSWR as unknown as SWRHook;

export function revalidateChallengeSession() {
  return mutate(
    (key) => Array.isArray(key) && key[key.length - 1] === "login",
    undefined,
    { revalidate: true },
  );
}

export function useChallengeSession(
  nonce: string,
  session: SessionId | undefined,
) {
  const {
    lib: { bank: api },
  } = useChallengerApiContext();

  async function fetcher([n, c, r, s]: [string, string, string, string]) {
    return await api.login(n, c, r, s);
  }
  const { data, error } = useSWR<
    ChallengerResultByMethod<"login">,
    TalerHttpError
  >(
    !session
      ? undefined
      : [nonce, session.clientId, session.redirectURL, session.state, "login"],
    fetcher,
    {},
  );

  if (data) return data;
  if (error) return error;
  return undefined;
}