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/*
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 <http://www.gnu.org/licenses/>
*/
/**
*
* @author Sebastian Javier Marchano (sebasjm)
*/
import { StateUpdater } from "preact/hooks";
import { useLocalStorage } from "@gnu-taler/web-util/lib/index.browser";
export type ValueOrFunction<T> = T | ((p: T) => T);
const calculateRootPath = () => {
const rootPath =
typeof window !== undefined
? window.location.origin + window.location.pathname
: "/";
return rootPath;
};
export function useBackendURL(
url?: string,
): [string, boolean, StateUpdater<string>, () => void] {
const { value, update: setter } = useLocalStorage(
"backend-url",
url || calculateRootPath(),
);
const {
value: triedToLog,
update: setTriedToLog,
reset: resetBackend,
} = useLocalStorage("tried-login");
const checkedSetter = (v: ValueOrFunction<string>) => {
setTriedToLog("yes");
const computedValue =
v instanceof Function ? v(value) : v.replace(/\/$/, "");
return setter(computedValue);
};
return [value, !!triedToLog, checkedSetter, resetBackend];
}
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