/*
This file is part of GNU Taler
(C) 2022 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
*/
/**
*
* @author Sebastian Javier Marchano (sebasjm)
*/
import { StateUpdater } from "preact/hooks";
import { buildStorageKey, useLocalStorage } from "@gnu-taler/web-util/browser";
import { codecForBoolean } from "@gnu-taler/taler-util";
export type ValueOrFunction = T | ((p: T) => T);
const calculateRootPath = () => {
const rootPath =
typeof window !== undefined
? window.location.origin + window.location.pathname
: "/";
return rootPath;
};
const BACKEND_URL_KEY = buildStorageKey("backend-url");
const TRIED_LOGIN_KEY = buildStorageKey("tried-login", codecForBoolean());
export function useBackendURL(
url?: string,
): [string, boolean, StateUpdater, () => void] {
const { value, update: setter } = useLocalStorage(
BACKEND_URL_KEY,
url || calculateRootPath(),
);
const {
value: triedToLog,
update: setTriedToLog,
reset: resetBackend,
} = useLocalStorage(TRIED_LOGIN_KEY);
const checkedSetter = (v: ValueOrFunction) => {
setTriedToLog(true);
const computedValue =
v instanceof Function ? v(value) : v.replace(/\/$/, "");
return setter(computedValue);
};
return [value, !!triedToLog, checkedSetter, resetBackend];
}