2 files changed, 186 insertions, 0 deletions
diff --git a/packages/aml-backoffice-ui/src/context/ui-forms.ts b/packages/aml-backoffice-ui/src/context/ui-forms.ts
new file mode 100644
index 000000000..3a25234d2
--- /dev/null
+++ b/packages/aml-backoffice-ui/src/context/ui-forms.ts
@@ -0,0 +1,76 @@
+/*
+ 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 { codecForUIForms, UiForms } from "@gnu-taler/web-util/browser";
+import { ComponentChildren, createContext, h, VNode } from "preact";
+import { useContext } from "preact/hooks";
+
+/**
+ *
+ * @author Sebastian Javier Marchano (sebasjm)
+ */
+
+export type Type = UiForms;
+
+const defaultForms: UiForms = {
+  forms: [],
+};
+const Context = createContext<Type>(defaultForms);
+
+export type BaseForm = Record<string, unknown>;
+
+export const useUiFormsContext = (): Type => useContext(Context);
+
+export const UiFormsProvider = ({
+  children,
+  value,
+}: {
+  value: UiForms;
+  children: ComponentChildren;
+}): VNode => {
+  return h(Context.Provider, {
+    value,
+    children,
+  });
+};
+
+
+
+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 fetchUiForms(listener: (s: UiForms) => void): void {
+  fetch("./forms.json")
+    .then((resp) => resp.json())
+    .then((json) => codecForUIForms().decode(json))
+    .then((result) =>
+      listener({
+        ...defaultForms,
+        ...removeUndefineField(result),
+      }),
+    )
+    .catch((e) => {
+      console.log("failed to fetch forms", e);
+      listener(defaultForms);
+    });
+}
diff --git a/packages/aml-backoffice-ui/src/context/ui-settings.ts b/packages/aml-backoffice-ui/src/context/ui-settings.ts
new file mode 100644
index 000000000..aa318a918
--- /dev/null
+++ b/packages/aml-backoffice-ui/src/context/ui-settings.ts
@@ -0,0 +1,110 @@
+/*
+ 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 { buildCodecForObject, canonicalizeBaseUrl, Codec, codecForString, codecOptional } from "@gnu-taler/taler-util";
+import { ComponentChildren, createContext, h, VNode } from "preact";
+import { useContext } from "preact/hooks";
+
+/**
+ *
+ * @author Sebastian Javier Marchano (sebasjm)
+ */
+
+export type Type = UiSettings;
+
+/**
+ * Global settings for the UI.
+ */
+const defaultSettings: UiSettings = {
+  backendBaseURL: buildDefaultBackendBaseURL(),
+  signupEmail: undefined,
+};
+
+const Context = createContext<Type>(defaultSettings);
+
+export const useUiSettingsContext = (): Type => useContext(Context);
+
+export const UiSettingsProvider = ({
+  children,
+  value,
+}: {
+  value: UiSettings;
+  children: ComponentChildren;
+}): VNode => {
+  return h(Context.Provider, {
+    value,
+    children,
+  });
+};
+
+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
+  signupEmail?: string;
+}
+
+const codecForUISettings = (): Codec<UiSettings> =>
+  buildCodecForObject<UiSettings>()
+    .property("backendBaseURL", codecOptional(codecForString()))
+    .property("signupEmail", codecOptional(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 fetchUiSettings(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, backend serves the html content
+     * from the /webui root.
+     */
+    return canonicalizeBaseUrl(currentLocation.replace("/webui", ""));
+  }
+  throw Error("No default URL");
+}
+
+