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import i18n, { BackendModule } from "i18next";
import LanguageDetector from "i18next-browser-languagedetector";
import { initReactI18next } from "react-i18next";
const backend: BackendModule = {
type: "backend",
init() {
/* do nothing */
},
// eslint-disable-next-line @typescript-eslint/no-misused-promises
async read(language, namespace) {
if (namespace === "translation") {
if (language === "en") {
return await import("./locales/en/translation.json");
} else if (language === "zh") {
return await import("./locales/zh/translation.json");
} else {
throw Error(`Language ${language} is not supported.`);
}
} else if (namespace === "admin") {
if (language === "en") {
return await import("./locales/en/admin.json");
} else if (language === "zh") {
return await import("./locales/zh/admin.json");
} else {
throw Error(`Language ${language} is not supported.`);
}
} else {
throw Error(`Namespace ${namespace} is not supported.`);
}
},
};
export const i18nPromise = i18n
.use(LanguageDetector)
.use(backend)
.use(initReactI18next) // bind react-i18next to the instance
.init({
fallbackLng: false,
lowerCaseLng: true,
debug: process.env.NODE_ENV === "development",
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 (module.hot) {
module.hot.accept(
[
"./locales/en/translation.json",
"./locales/zh/translation.json",
"./locales/en/admin.json",
"./locales/zh/admin.json",
],
() => {
void i18n.reloadResources();
},
);
}
export default i18n;
export type I18nText =
| string
| { type: "text" | "custom"; value: string }
| { type: "i18n"; value: string };
type T = typeof i18n.t;
export function convertI18nText(text: I18nText, t: T): string;
export function convertI18nText(
text: I18nText | null | undefined,
t: T,
): string | null;
export function convertI18nText(
text: I18nText | null | undefined,
t: T,
): string | null {
if (text == null) {
return null;
} else if (typeof text === "string") {
return t(text);
} else if (text.type === "i18n") {
return t(text.value);
} else {
return text.value;
}
}
export interface C {
(text: I18nText): string;
(text: I18nText | null | undefined): string | null;
}
export function createC(t: T): C {
return ((text) => convertI18nText(text, t)) as C;
}
export const c = createC(i18n.t);
|
