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Diffstat (limited to 'packages/aml-backoffice-ui/src/context/ui-settings.ts')
-rw-r--r-- | packages/aml-backoffice-ui/src/context/ui-settings.ts | 110 |
1 files changed, 110 insertions, 0 deletions
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"); +} + + |