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import i18n, { BackendModule, ResourceKey } from "i18next";
import LanguageDetector from "i18next-browser-languagedetector";
import { initReactI18next } from "react-i18next";
const backend: BackendModule = {
type: "backend",
read(language, namespace, callback) {
function error(message: string): void {
callback(new Error(message), false);
}
function success(result: ResourceKey): void {
callback(null, result);
}
const promise = (() => {
if (namespace === "translation") {
if (language === "en") {
return import("./locales/en/translation.json");
} else if (language === "zh") {
return import("./locales/zh/translation.json");
} else {
error(`Language ${language} is not supported.`);
}
} else if (namespace === "admin") {
if (language === "en") {
return import("./locales/en/admin.json");
} else if (language === "zh") {
return import("./locales/zh/admin.json");
} else {
error(`Language ${language} is not supported.`);
}
} else {
error(`Namespace ${namespace} is not supported.`);
}
})();
if (promise) {
void promise.then((d) => success(d.default));
}
},
init() {}, // eslint-disable-line @typescript-eslint/no-empty-function
create() {}, // eslint-disable-line @typescript-eslint/no-empty-function
};
export const i18nPromise = i18n
.use(LanguageDetector)
.use(backend)
.use(initReactI18next) // bind react-i18next to the instance
.init({
fallbackLng: false,
lowerCaseLng: true,
debug: import.meta.env.DEV,
interpolation: {
escapeValue: false, // not needed for react!!
},
// react i18next special options (optional)
// override if needed - omit if ok with defaults
/*
react: {
bindI18n: 'languageChanged',
bindI18nStore: '',
transEmptyNodeValue: '',
transSupportBasicHtmlNodes: true,
transKeepBasicHtmlNodesFor: ['br', 'strong', 'i'],
useSuspense: true,
}
*/
});
if (import.meta.hot) {
import.meta.hot.accept(
[
"./locales/en/translation.json",
"./locales/zh/translation.json",
"./locales/en/admin.json",
"./locales/zh/admin.json",
],
() => {
void i18n.reloadResources();
}
);
}
export default i18n;
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