1 files changed, 95 insertions, 0 deletions
diff --git a/packages/demobank-ui/src/hooks/preferences.ts b/packages/demobank-ui/src/hooks/preferences.ts
new file mode 100644
index 000000000..a1525ac80
--- /dev/null
+++ b/packages/demobank-ui/src/hooks/preferences.ts
@@ -0,0 +1,95 @@
+/*
+ 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,
+  TranslatedString,
+  buildCodecForObject,
+  codecForBoolean,
+  codecForNumber,
+  codecForString,
+  codecOptional
+} from "@gnu-taler/taler-util";
+import { buildStorageKey, useLocalStorage, useTranslationContext } from "@gnu-taler/web-util/browser";
+
+interface Preferences {
+  currentWithdrawalOperationId: string | undefined;
+  showWithdrawalSuccess: boolean;
+  showDemoDescription: boolean;
+  showInstallWallet: boolean;
+  maxWithdrawalAmount: number;
+  fastWithdrawal: boolean;
+  showDebugInfo: boolean;
+
+}
+
+export function getAllBooleanPreferences(): Array<keyof Preferences> {
+  return ["fastWithdrawal", "showDebugInfo", "showDemoDescription", "showInstallWallet", "showWithdrawalSuccess"]
+}
+
+export function getLabelForPreferences(k: keyof Preferences, i18n: ReturnType<typeof useTranslationContext>["i18n"]): TranslatedString {
+  switch (k) {
+    case "currentWithdrawalOperationId": return i18n.str`Current withdrawal operation`
+    case "maxWithdrawalAmount": return i18n.str`Max withdrawal amount`
+    case "showWithdrawalSuccess": return i18n.str`Show withdrawal confirmation`
+    case "showDemoDescription": return i18n.str`Show demo description`
+    case "showInstallWallet": return i18n.str`Show install wallet first`
+    case "fastWithdrawal": return i18n.str`Use fast withdrawal form`
+    case "showDebugInfo": return i18n.str`Show debug info`
+  }
+}
+
+export const codecForPreferences = (): Codec<Preferences> =>
+  buildCodecForObject<Preferences>()
+    .property("currentWithdrawalOperationId", codecOptional(codecForString()))
+    .property("showWithdrawalSuccess", (codecForBoolean()))
+    .property("showDemoDescription", (codecForBoolean()))
+    .property("showInstallWallet", (codecForBoolean()))
+    .property("fastWithdrawal", (codecForBoolean()))
+    .property("showDebugInfo", (codecForBoolean()))
+    .property("maxWithdrawalAmount", codecForNumber())
+    .build("Settings");
+
+const defaultPreferences: Preferences = {
+  currentWithdrawalOperationId: undefined,
+  showWithdrawalSuccess: true,
+  showDemoDescription: true,
+  showInstallWallet: true,
+  maxWithdrawalAmount: 25,
+  fastWithdrawal: false,
+  showDebugInfo: false,
+};
+
+const BANK_PREFERENCES_KEY = buildStorageKey(
+  "bank-preferences",
+  codecForPreferences(),
+);
+
+export function usePreferences(): [
+  Readonly<Preferences>,
+  <T extends keyof Preferences>(key: T, value: Preferences[T]) => void,
+] {
+  const { value, update } = useLocalStorage(
+    BANK_PREFERENCES_KEY,
+    defaultPreferences,
+  );
+
+  function updateField<T extends keyof Preferences>(k: T, v: Preferences[T]) {
+    const newValue = { ...value, [k]: v };
+    update(newValue);
+  }
+  return [value, updateField];
+}