1 files changed, 58 insertions, 0 deletions
diff --git a/packages/challenger-ui/src/hooks/challenge.ts b/packages/challenger-ui/src/hooks/challenge.ts
new file mode 100644
index 000000000..3df10e21e
--- /dev/null
+++ b/packages/challenger-ui/src/hooks/challenge.ts
@@ -0,0 +1,58 @@
+/*
+ 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;
+}