1 files changed, 112 insertions, 0 deletions
diff --git a/packages/bank-ui/src/hooks/preferences.ts b/packages/bank-ui/src/hooks/preferences.ts
new file mode 100644
index 000000000..454dc8d80
--- /dev/null
+++ b/packages/bank-ui/src/hooks/preferences.ts
@@ -0,0 +1,112 @@
+/*
+ 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,
+  TranslatedString,
+  buildCodecForObject,
+  codecForBoolean,
+  codecForNumber,
+} from "@gnu-taler/taler-util";
+import {
+  buildStorageKey,
+  useLocalStorage,
+  useTranslationContext,
+} from "@gnu-taler/web-util/browser";
+
+interface Preferences {
+  showWithdrawalSuccess: boolean;
+  showDemoDescription: boolean;
+  showInstallWallet: boolean;
+  maxWithdrawalAmount: number;
+  fastWithdrawal: boolean;
+  showDebugInfo: boolean;
+}
+
+export const codecForPreferences = (): Codec<Preferences> =>
+  buildCodecForObject<Preferences>()
+    .property("showWithdrawalSuccess", codecForBoolean())
+    .property("showDemoDescription", codecForBoolean())
+    .property("showInstallWallet", codecForBoolean())
+    .property("fastWithdrawal", codecForBoolean())
+    .property("showDebugInfo", codecForBoolean())
+    .property("maxWithdrawalAmount", codecForNumber())
+    .build("Settings");
+
+const defaultPreferences: Preferences = {
+  showWithdrawalSuccess: true,
+  showDemoDescription: true,
+  showInstallWallet: true,
+  maxWithdrawalAmount: 25,
+  fastWithdrawal: false,
+  showDebugInfo: false,
+};
+
+const BANK_PREFERENCES_KEY = buildStorageKey(
+  "bank-preferences",
+  codecForPreferences(),
+);
+/**
+ * User preferences.
+ * 
+ * @returns tuple of [state, update()]
+ */
+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];
+}
+
+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 "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`;
+  }
+}
+