add: locale and i18n

src/lib/i18n.js

@@ -0,0 +1,41 @@
+import { createInstance } from 'i18next';
+import { initReactI18next } from 'react-i18next/initReactI18next';
+import resourcesToBackend from 'i18next-resources-to-backend';
+import i18nConfig from '../../i18nConfig';
+
+export default async function initTranslations(
+  locale,
+  namespaces,
+  i18nInstance,
+  resources
+) {
+  i18nInstance = i18nInstance || createInstance();
+
+  i18nInstance.use(initReactI18next);
+
+  if (!resources) {
+    i18nInstance.use(
+      resourcesToBackend(
+        (language, namespace) =>
+          import(`@/locales/${language}/${namespace}.json`)
+      )
+    );
+  }
+
+  await i18nInstance.init({
+    lng: locale,
+    resources,
+    fallbackLng: i18nConfig.defaultLocale,
+    supportedLngs: i18nConfig.locales,
+    defaultNS: namespaces[0],
+    fallbackNS: namespaces[0],
+    ns: namespaces,
+    preload: resources ? [] : i18nConfig.locales
+  });
+
+  return {
+    i18n: i18nInstance,
+    resources: { [locale]: i18nInstance.services.resourceStore.data[locale] },
+    t: i18nInstance.t
+  };
+}