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/*
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 {
Codec,
buildCodecForObject,
canonicalizeBaseUrl,
codecForBoolean,
codecForMap,
codecForNumber,
codecForString,
codecOptional,
} from "@gnu-taler/taler-util";
export interface UiSettings {
// Where libeufin backend is localted
// default: window.origin without "webui/"
backendBaseURL?: string;
// Shows a button "create random account" in the registration form
// Useful for testing
// default: false
allowRandomAccountCreation?: boolean;
// Create all random accounts with password "123"
// Useful for testing
// default: false
simplePasswordForRandomAccounts?: boolean;
// URL where the user is going to be redirected after
// clicking in Taler Logo
// default: home page
iconLinkURL?: string;
// Mapping for every link shown in the top navitation bar
// - key: link label, what the user will read
// - value: link target, where the user is going to be redirected
// default: empty list
topNavSites?: Record<string, string>;
// When the withdrawal form use the suggested amount the bank
// will send a default value that the user can change.
// default: 10
defaultSuggestedAmount?: number;
}
/**
* Global settings for the bank UI.
*/
const defaultSettings: UiSettings = {
backendBaseURL: buildDefaultBackendBaseURL(),
iconLinkURL: undefined,
simplePasswordForRandomAccounts: false,
allowRandomAccountCreation: false,
topNavSites: {},
defaultSuggestedAmount: 10,
};
const codecForUISettings = (): Codec<UiSettings> =>
buildCodecForObject<UiSettings>()
.property("backendBaseURL", codecOptional(codecForString()))
.property("allowRandomAccountCreation", codecOptional(codecForBoolean()))
.property("defaultSuggestedAmount", codecOptional(codecForNumber()))
.property(
"simplePasswordForRandomAccounts",
codecOptional(codecForBoolean()),
)
.property("iconLinkURL", codecOptional(codecForString()))
.property("topNavSites", codecOptional(codecForMap(codecForString())))
.build("UiSettings");
function removeUndefineField<T extends object>(obj: T): T {
const keys = Object.keys(obj) as Array<keyof T>;
return keys.reduce((prev, cur) => {
if (typeof prev[cur] === "undefined") {
delete prev[cur];
}
return prev;
}, obj);
}
export function fetchSettings(listener: (s: UiSettings) => void): void {
fetch("./settings.json")
.then((resp) => resp.json())
.then((json) => codecForUISettings().decode(json))
.then((result) =>
listener({
...defaultSettings,
...removeUndefineField(result),
}),
)
.catch((e) => {
console.log("failed to fetch settings", e);
listener(defaultSettings);
});
}
function buildDefaultBackendBaseURL(): string | undefined {
if (typeof window !== "undefined") {
const currentLocation = new URL(
window.location.pathname,
window.location.origin,
).href;
/**
* By default, bank backend serves the html content
* from the /webui root.
*/
return canonicalizeBaseUrl(currentLocation.replace("/webui", ""));
}
throw Error("No default URL");
}
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