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/*
Fosscord: A FOSS re-implementation and extension of the Discord.com backend.
Copyright (C) 2023 Fosscord and Fosscord Contributors
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published
by the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program 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 Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
import fs from "fs";
import path from "path";
import i18next, { TFunction } from "i18next";
import i18nextBackend from "i18next-fs-backend";
import { Router } from "express";
declare global {
// eslint-disable-next-line @typescript-eslint/no-namespace
namespace Express {
interface Request {
t: TFunction;
language?: string;
}
}
}
const ASSET_FOLDER_PATH = path.join(__dirname, "..", "..", "..", "assets");
export async function initTranslation(router: Router) {
const languages = fs.readdirSync(path.join(ASSET_FOLDER_PATH, "locales"));
const namespaces = fs.readdirSync(
path.join(ASSET_FOLDER_PATH, "locales", "en"),
);
const ns = namespaces
.filter((x) => x.endsWith(".json"))
.map((x) => x.slice(0, x.length - 5));
await i18next.use(i18nextBackend).init({
preload: languages,
// debug: true,
fallbackLng: "en",
ns,
backend: {
loadPath:
path.join(ASSET_FOLDER_PATH, "locales") +
"/{{lng}}/{{ns}}.json",
},
load: "all",
});
router.use((req, res, next) => {
let lng = "en";
if (req.headers["accept-language"]) {
lng = req.headers["accept-language"].split(",")[0];
}
req.language = lng;
// eslint-disable-next-line @typescript-eslint/no-explicit-any
req.t = (key: string | string[], options?: any) => {
return i18next.t(key, {
...options,
lng,
});
};
next();
});
}
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