core&ui: i18n: fix serialize

packages/hydrooj/src/interface.ts

@@ -736,7 +736,7 @@ export interface HydroGlobal {
     error: typeof import('./error');
     Logger: typeof import('./logger').Logger;
     logger: typeof import('./logger').logger;
-    locales: Record<string, Record<string, string>>;
+    locales: Record<string, Record<string, string> | Record<symbol, Record<string, string>>>;
 }
 
 declare global {

packages/hydrooj/src/lib/i18n.ts

@@ -62,8 +62,11 @@ global.Hydro.locales = new Proxy(translations, {
     get(self, lang: string) {
         if (!self[lang]) return {};
         return new Proxy(self[lang], {
-            get(s, key: string) {
+            get(s, key) {
-                return app.i18n.get(key, lang);
+                if (typeof key === 'string') return app.i18n.get(key, lang);
+                const result = {};
+                for (let i = s.length - 1; i; i--) Object.assign(result, s[i]);
+                return result;
             },
         });
     },

packages/ui-default/index.ts

@@ -152,7 +152,7 @@ class UiConstantsHandler extends ResourceHandler {
 class LanguageHandler extends ResourceHandler {
   async all({ lang }) {
     if (!global.Hydro.locales[lang]) lang = SystemModel.get('server.language');
-    this.response.body = `window.LOCALES=${JSON.stringify(global.Hydro.locales[lang])};`;
+    this.response.body = `window.LOCALES=${JSON.stringify(global.Hydro.locales[lang][Symbol.for('iterate')])};`;
     this.response.type = 'application/javascript';
   }
 }