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/*
This file is part of GNU Taler
(C) 2021-2023 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 { createContext, h, VNode } from "preact";
import { useContext, useState } from "preact/hooks";
import { LoginToken } from "../declaration.js";
import { useBackendDefaultToken, useBackendURL } from "../hooks/index.js";
import { buildStorageKey, useLocalStorage } from "@gnu-taler/web-util/browser";
import { codecForBoolean } from "@gnu-taler/taler-util";
interface BackendContextType {
url: string,
selected: boolean;
token?: LoginToken;
updateToken: (token: LoginToken | undefined) => void;
changeBackend: (url: string) => void;
resetBackend: () => void;
}
const BackendContext = createContext<BackendContextType>({
url: "",
selected: false,
token: undefined,
updateToken: () => null,
changeBackend: () => null,
resetBackend: () => null,
});
const BACKEND_SELECTED = buildStorageKey("backend-selected", codecForBoolean());
function useBackendContextState(
defaultUrl?: string,
): BackendContextType {
const [url, changeBackend2] = useBackendURL(defaultUrl);
const [token, updateToken] = useBackendDefaultToken();
const {value, update} = useLocalStorage(BACKEND_SELECTED)
function changeBackend(s:string) {
changeBackend2(s)
update(true)
}
function resetBackend() {
update(false)
}
return {
url,
token,
selected: value ?? false,
updateToken,
changeBackend,
resetBackend
};
}
export const BackendContextProvider = ({
children,
defaultUrl,
}: {
children: any;
defaultUrl?: string;
}): VNode => {
const value = useBackendContextState(defaultUrl);
return h(BackendContext.Provider, { value, children });
};
export const useBackendContext = (): BackendContextType =>
useContext(BackendContext);
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