Files
outline/app/utils/i18n.ts
2024-08-09 16:11:35 +01:00

48 lines
1.3 KiB
TypeScript

import i18n from "i18next";
import backend from "i18next-http-backend";
import { initReactI18next } from "react-i18next";
import { languages } from "@shared/i18n";
import { unicodeCLDRtoBCP47, unicodeBCP47toCLDR } from "@shared/utils/date";
import Logger from "./Logger";
/**
* Initializes i18n library, loading all available translations from the
* API backend.
*
* @param defaultLanguage The default language to use if the user's language
* is not supported.
* @returns A promise resolving to the i18n instance
*/
export function initI18n(defaultLanguage = "en_US") {
const lng = unicodeCLDRtoBCP47(defaultLanguage);
void i18n
.use(backend)
.use(initReactI18next)
.init({
compatibilityJSON: "v3",
backend: {
// this must match the path defined in routes. It's the path that the
// frontend UI code will hit to load missing translations.
loadPath: (locale: string[]) =>
`/locales/${unicodeBCP47toCLDR(locale[0])}.json`,
},
interpolation: {
escapeValue: false,
},
react: {
useSuspense: false,
},
lng,
fallbackLng: lng,
supportedLngs: languages.map(unicodeCLDRtoBCP47),
keySeparator: false,
returnNull: false,
})
.catch((err) => {
Logger.error("Failed to initialize i18n", err);
});
return i18n;
}