Tola Leng
48 lines
1.5 KiB
TypeScript
48 lines
1.5 KiB
TypeScript
import React, { createContext, useContext, useState, ReactNode } from "react";
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import { translations, Language, TranslationModule, TranslationKey } from "@/translations";
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type LanguageContextType = {
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language: Language;
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setLanguage: (language: Language) => void;
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t: <M extends TranslationModule>(key: string, module?: M) => string;
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};
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// ❗ Create the context with `undefined` to enforce provider usage
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const LanguageContext = createContext<LanguageContextType | undefined>(undefined);
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// ✅ Stable custom hook
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export const useLanguage = () => {
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const context = useContext(LanguageContext);
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if (!context) {
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throw new Error("useLanguage must be used within a LanguageProvider");
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}
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return context;
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};
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export const LanguageProvider = ({ children }: { children: ReactNode }) => {
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const [language, setLanguage] = useState<Language>("en");
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const t = <M extends TranslationModule>(key: string, module?: M): string => {
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if (module) {
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const translatedValue = translations[language][module][key as TranslationKey<M>];
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return typeof translatedValue === "string" ? translatedValue : key;
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}
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for (const mod in translations[language]) {
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const moduleKey = mod as TranslationModule;
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const translatedValue = translations[language][moduleKey][key as any];
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if (translatedValue && typeof translatedValue === "string") {
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return translatedValue;
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}
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}
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return key;
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};
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return (
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<LanguageContext.Provider value={{ language, setLanguage, t }}>
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{children}
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</LanguageContext.Provider>
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);
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};
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