bca6670390
- Introduced new translation files for medication, personal, and weight management in Chinese. - Updated the main index file to include the new translation modules. - Enhanced the medication type definitions to include 'ointment'. - Refactored workout type labels to utilize i18n for better localization support. - Improved sleep quality descriptions and recommendations with i18n integration.
77 lines
2.3 KiB
TypeScript
77 lines
2.3 KiB
TypeScript
import * as Localization from 'expo-localization';
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import i18n from 'i18next';
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import { initReactI18next } from 'react-i18next';
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import { getItemSync, setItem } from '@/utils/kvStore';
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import en from './en';
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import zh from './zh';
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export const LANGUAGE_PREFERENCE_KEY = 'app_language_preference';
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export const SUPPORTED_LANGUAGES = ['zh', 'en'] as const;
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export type AppLanguage = typeof SUPPORTED_LANGUAGES[number];
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const fallbackLanguage: AppLanguage = 'zh';
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const resources = {
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zh: {
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translation: zh,
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},
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en: {
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translation: en,
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},
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};
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export const isSupportedLanguage = (language?: string | null): language is AppLanguage => {
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if (!language) return false;
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return SUPPORTED_LANGUAGES.some((code) => language === code || language.startsWith(`${code}-`));
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};
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export const getNormalizedLanguage = (language?: string | null): AppLanguage => {
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if (!language) return fallbackLanguage;
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const normalized = SUPPORTED_LANGUAGES.find((code) => language === code || language.startsWith(`${code}-`));
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return normalized ?? fallbackLanguage;
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};
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const getStoredLanguage = (): AppLanguage | null => {
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try {
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const stored = getItemSync?.(LANGUAGE_PREFERENCE_KEY) as AppLanguage | null | undefined;
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if (stored && isSupportedLanguage(stored)) {
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return stored;
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}
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} catch (error) {
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// ignore storage errors and fall back to device preference
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}
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return null;
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};
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const getDeviceLanguage = (): AppLanguage | null => {
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try {
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const locales = Localization.getLocales();
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const preferred = locales.find((locale) => locale.languageCode && isSupportedLanguage(locale.languageCode));
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return preferred?.languageCode as AppLanguage | undefined || null;
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} catch (error) {
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return null;
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}
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};
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const initialLanguage = getStoredLanguage() ?? getDeviceLanguage() ?? fallbackLanguage;
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void i18n.use(initReactI18next).init({
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compatibilityJSON: 'v4',
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resources,
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lng: initialLanguage,
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fallbackLng: fallbackLanguage,
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interpolation: {
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escapeValue: false,
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},
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returnNull: false,
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});
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export const changeAppLanguage = async (language: AppLanguage) => {
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const nextLanguage = isSupportedLanguage(language) ? language : fallbackLanguage;
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await i18n.changeLanguage(nextLanguage);
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await setItem(LANGUAGE_PREFERENCE_KEY, nextLanguage);
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};
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export default i18n;
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