fix: namespace not loaded in registerTranslationLoader (#11)

Author: Pistonight

package.json

@@ -1,6 +1,6 @@
 {
     "name": "@pistonite/celera",
-    "version": "0.3.0",
+    "version": "0.3.1",
     "type": "module",
     "private": true,
     "description": "In-house UI framework",

src/i18n/init.ts

@@ -7,16 +7,12 @@ import type { LocaleOptions } from "./types.ts";
 import { createBackend } from "./backend.ts";
 import Strings from "./strings.yaml";
 import { registerTranslationLoader } from "./loaders.ts";
+import { once } from "@pistonite/pure/sync";
 
 export const CELERA_NAMESPACE = "celerans";
 
-/**
- * Initialize locale system in Pure and connect it with I18next
- *
- * This function calls `initLocale` internally, so you don't need to do that yourself.
- */
-export const initLocale = async <TLocale extends string>(options: LocaleOptions<TLocale>) => {
-    registerTranslationLoader(CELERA_NAMESPACE, loadCeleraTranslations);
+const initLocaleInternal = async <TLocale extends string>(options: LocaleOptions<TLocale>) => {
+    await registerTranslationLoader(CELERA_NAMESPACE, loadCeleraTranslations);
 
     const defaultLocale = options.default;
     let instance = i18next;
@@ -52,6 +48,11 @@ export const initLocale = async <TLocale extends string>(options: LocaleOptions<
         ns: [CELERA_NAMESPACE],
     });
 };
+/**
+ * Initialize locale system in Celera and connect it with I18next
+ * @function
+ */
+export const initLocale = once({ fn: initLocaleInternal });
 
 const loadCeleraTranslations = async (language: string): Promise<Record<string, string>> => {
     const SupportedLocales = [

src/i18n/loaders.ts

@@ -7,19 +7,21 @@ const namedspacedLoaders: Map<string, LoadLanguageFn> = new Map();
 const namespacedAwaiters: Map<string, ((loader: LoadLanguageFn) => void)[]> = new Map();
 
 /** Register a translation loader for a namespace */
-export const registerTranslationLoader = (namespace: string, loader: LoadLanguageFn) => {
+export const registerTranslationLoader = async (
+    namespace: string,
+    loader: LoadLanguageFn,
+): Promise<void> => {
     if (namedspacedLoaders.has(namespace)) {
         log.error(`translation namespace '${namespace}' is already registered`);
         return;
     }
     namedspacedLoaders.set(namespace, loader);
     const awaiters = namespacedAwaiters.get(namespace);
-    if (!awaiters) {
-        return;
+    if (awaiters) {
+        namespacedAwaiters.delete(namespace);
+        awaiters.forEach((x) => x(loader));
     }
-    namespacedAwaiters.delete(namespace);
-    awaiters.forEach((x) => x(loader));
-    void i18next.loadNamespaces(namespace);
+    await i18next.loadNamespaces(namespace);
 };
 
 export const getTranslationLoaderForNamespace = (namespace: string): Promise<LoadLanguageFn> => {