i18n 적용

src/features/i18n/LocaleProvider.tsx

@@ -0,0 +1,39 @@
+"use client";
+
+import type { ReactNode } from "react";
+import { createContext, useContext, useState } from "react";
+import type { AppLocale } from "./locale";
+import { DEFAULT_LOCALE } from "./locale";
+
+type LocaleContextValue = {
+  locale: AppLocale;
+  setLocale: (locale: AppLocale) => void;
+};
+
+const LocaleContext = createContext<LocaleContextValue>({
+  locale: DEFAULT_LOCALE,
+  setLocale: () => {
+    // no-op default
+  },
+});
+
+export function LocaleProvider({
+  initialLocale,
+  children,
+}: {
+  initialLocale: AppLocale;
+  children: ReactNode;
+}) {
+  const [locale, setLocale] = useState<AppLocale>(initialLocale);
+
+  return <LocaleContext.Provider value={{ locale, setLocale }}>{children}</LocaleContext.Provider>;
+}
+
+export function useAppLocale(): AppLocale {
+  return useContext(LocaleContext).locale;
+}
+
+export function useLocaleActions() {
+  const { setLocale } = useContext(LocaleContext);
+  return { setLocale };
+}