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/*
This file is part of TALER
(C) 2016 GNUnet e.V.
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.
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
TALER; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
*/
/**
* Translation helpers for React components and template literals.
*/
/**
* Imports.
*/
import { strings } from "./strings";
export { strings } from "./strings";
// @ts-ignore: no type decl for this library
import * as jedLib from "jed";
import { Logger } from "../util/logging";
const logger = new Logger("i18n/index.ts");
export let jed: any = undefined;
/**
* Set up jed library for internationalization,
* based on browser language settings.
*/
export function setupI18n(lang: string): any {
lang = lang.replace("_", "-");
if (!strings[lang]) {
lang = "en-US";
logger.warn(`language ${lang} not found, defaulting to english`);
}
jed = new jedLib.Jed(strings[lang]);
}
/**
* Use different translations for testing. Should not be used outside
* of test cases.
*/
export function internalSetStrings(langStrings: any): void {
jed = new jedLib.Jed(langStrings);
}
/**
* Convert template strings to a msgid
*/
function toI18nString(stringSeq: ReadonlyArray<string>): string {
let s = "";
for (let i = 0; i < stringSeq.length; i++) {
s += stringSeq[i];
if (i < stringSeq.length - 1) {
s += `%${i + 1}$s`;
}
}
return s;
}
/**
* Internationalize a string template with arbitrary serialized values.
*/
export function str(stringSeq: TemplateStringsArray, ...values: any[]): string {
const s = toI18nString(stringSeq);
const tr = jed
.translate(s)
.ifPlural(1, s)
.fetch(...values);
return tr;
}
/**
* Get an internationalized string (based on the globally set, current language)
* from a JSON object. Fall back to the default language of the JSON object
* if no match exists.
*/
export function getJsonI18n<K extends string>(
obj: Record<K, string>,
key: K,
): string {
return obj[key];
}
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