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/*
This file is part of GNU Taler
(C) 2021-2024 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/>
*/
/**
*
* @author Sebastian Javier Marchano (sebasjm)
*/
import { canonicalizeBaseUrl } from "@gnu-taler/taler-util";
import {
BrowserHashNavigationProvider,
MerchantApiProvider,
TalerWalletIntegrationBrowserProvider,
TranslationProvider
} from "@gnu-taler/web-util/browser";
import { Fragment, VNode, h } from "preact";
import { useEffect, useState } from "preact/hooks";
import { SWRConfig } from "swr";
import { Routing } from "./Routing.js";
import { Loading } from "./components/exception/loading.js";
import { SettingsProvider } from "./context/settings.js";
import { strings } from "./i18n/strings.js";
import { MerchantUiSettings, buildDefaultBackendBaseURL, fetchSettings } from "./settings.js";
const WITH_LOCAL_STORAGE_CACHE = false;
export function Application(): VNode {
const [settings, setSettings] = useState<MerchantUiSettings>();
useEffect(() => {
fetchSettings(setSettings);
}, []);
if (!settings) return <Loading />;
const baseUrl = getInitialBackendBaseURL(settings.backendBaseURL);
return (
<SettingsProvider value={settings}>
<TranslationProvider
source={strings}
completeness={{
es: strings["es"].completeness,
de: strings["de"].completeness,
}}
>
<MerchantApiProvider baseUrl={new URL("/", baseUrl)} frameOnError={({ children }) => <div>{children}</div>}>
<SWRConfig
value={{
provider: WITH_LOCAL_STORAGE_CACHE
? localStorageProvider
: undefined,
// normally, do not revalidate
revalidateOnFocus: false,
revalidateOnReconnect: false,
revalidateIfStale: false,
revalidateOnMount: undefined,
focusThrottleInterval: undefined,
// normally, do not refresh
refreshInterval: undefined,
dedupingInterval: 2000,
refreshWhenHidden: false,
refreshWhenOffline: false,
// ignore errors
shouldRetryOnError: false,
errorRetryCount: 0,
errorRetryInterval: undefined,
// do not go to loading again if already has data
keepPreviousData: true,
}}
>
<TalerWalletIntegrationBrowserProvider>
<BrowserHashNavigationProvider>
<Routing />
</BrowserHashNavigationProvider>
</TalerWalletIntegrationBrowserProvider>
</SWRConfig>
</MerchantApiProvider>
</TranslationProvider>
</SettingsProvider>
);
}
function getInitialBackendBaseURL(
backendFromSettings: string | undefined,
): string {
/**
* For testing purpose
*/
const overrideUrl =
typeof localStorage !== "undefined"
? localStorage.getItem("merchant-base-url")
: undefined;
let result: string;
if (overrideUrl) {
// testing/development path
result = overrideUrl;
} else {
// normal path
if (!backendFromSettings) {
console.error(
"ERROR: backendBaseURL was overridden by a setting file and missing. Setting value to 'window.origin'",
);
result = buildDefaultBackendBaseURL();
} else {
result = backendFromSettings;
}
}
try {
return canonicalizeBaseUrl(result);
} catch (e) {
// fall back
return canonicalizeBaseUrl(window.origin);
}
}
function localStorageProvider(): Map<unknown, unknown> {
const map = new Map(JSON.parse(localStorage.getItem("app-cache") || "[]"));
window.addEventListener("beforeunload", () => {
const appCache = JSON.stringify(Array.from(map.entries()));
localStorage.setItem("app-cache", appCache);
});
return map;
}
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