adminfront 상단 화면 i18n 정리

adminfront/src/lib/locale.ts

@@ -0,0 +1,32 @@
+import { DEFAULT_LOCALE, LOCALE_STORAGE_KEY, type Locale } from "../../../common/core/i18n";
+
+function isLocale(value: string): value is Locale {
+  return value === "ko" || value === "en";
+}
+
+export function getAdminLocale(): Locale {
+  if (typeof window === "undefined") {
+    return DEFAULT_LOCALE;
+  }
+
+  const stored = window.localStorage.getItem(LOCALE_STORAGE_KEY);
+  if (stored && isLocale(stored)) {
+    return stored;
+  }
+
+  const pathLocale = window.location.pathname.split("/")[1];
+  if (pathLocale && isLocale(pathLocale)) {
+    return pathLocale;
+  }
+
+  const browserLang = window.navigator.language.toLowerCase();
+  if (browserLang.startsWith("ko")) {
+    return "ko";
+  }
+
+  return DEFAULT_LOCALE;
+}
+
+export function getAdminDateLocale() {
+  return getAdminLocale() === "ko" ? "ko-KR" : "en-US";
+}