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path: root/packages/demobank-ui/src/settings.ts
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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/>
 */

import { Codec, buildCodecForObject, codecForBoolean, codecForList, codecForString, codecOptional } from "@gnu-taler/taler-util";

export interface BankUiSettings {
  // location of the backend API
  backendBaseURL?: string;
  // where the user is going to be redirected after clicking the Taler icon
  iconLinkURL?: string;
  // show demo nav
  showDemoNav?: boolean;
  // links of the demo nav. Array of tuples that contains [name,url]
  demoSites?: Array<Array<string>>;
  // show a button "create random account"
  allowRandomAccountCreation?: boolean;
  // every random account will have password "123"
  simplePasswordForRandomAccounts?: boolean;
  // bank name in the top
  bankName?: string;
}

/**
 * Global settings for the bank UI.
 */
const defaultSettings: BankUiSettings = {
  backendBaseURL: undefined,
  iconLinkURL: undefined,
  bankName: "Taler TESTING Bank",
  showDemoNav: false,
  simplePasswordForRandomAccounts: true,
  allowRandomAccountCreation: true,
  demoSites: [
    ["Demo", "https://demo.taler.net/"],
  ],
};

const codecForBankUISettings = (): Codec<BankUiSettings> =>
  buildCodecForObject<BankUiSettings>()
    .property("allowRandomAccountCreation", codecOptional(codecForBoolean()))
    .property("backendBaseURL", codecOptional(codecForString()))
    .property("bankName", codecOptional(codecForString()))
    .property("demoSites", codecOptional(codecForList(codecForList(codecForString()))))
    .property("iconLinkURL", codecOptional(codecForString()))
    .property("showDemoNav", codecOptional(codecForBoolean()))
    .property("simplePasswordForRandomAccounts", codecOptional(codecForBoolean()))
    .build("BankUiSettings");

export function fetchSettings(listener: (s: BankUiSettings) => void): void {
  fetch("./settings.json")
    .then(resp => resp.json())
    .then(json => codecForBankUISettings().decode(json))
    .then(listener)
    .catch(e => {
      console.log("failed to fetch settings", e)
      listener(defaultSettings)
    })
}