76 lines
2.2 KiB
TypeScript
76 lines
2.2 KiB
TypeScript
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import { Language, defaultLanguage, isValidLanguage } from './config';
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export const getLanguageFromPath = (pathname: string, search?: string): Language => {
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// 首页、产品页面和新闻页面支持 ?lang=xx
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if (
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(pathname === '/' || pathname === '' || pathname === '/products' || pathname === '/news') &&
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search
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) {
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const params = new URLSearchParams(search);
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const lang = params.get('lang');
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if (lang && isValidLanguage(lang)) {
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return lang as Language;
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}
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}
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const segments = pathname.split('/').filter(Boolean);
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const firstSegment = segments[0];
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if (firstSegment && isValidLanguage(firstSegment)) {
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return firstSegment;
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}
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return defaultLanguage;
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};
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export const removeLanguageFromPath = (pathname: string): string => {
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const segments = pathname.split('/').filter(Boolean);
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const firstSegment = segments[0];
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if (firstSegment && isValidLanguage(firstSegment)) {
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return '/' + segments.slice(1).join('/');
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}
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return pathname;
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};
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export const addLanguageToPath = (pathname: string, language: Language): string => {
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if (language === defaultLanguage) {
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return pathname;
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}
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const cleanPath = removeLanguageFromPath(pathname);
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return `/${language}${cleanPath === '/' ? '' : cleanPath}`;
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};
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export const getStoredLanguage = (): Language => {
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if (typeof window === 'undefined') return defaultLanguage;
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const stored = localStorage.getItem('preferred-language');
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if (stored && isValidLanguage(stored)) {
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return stored;
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}
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return defaultLanguage;
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};
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export const setStoredLanguage = (language: Language): void => {
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if (typeof window === 'undefined') return;
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localStorage.setItem('preferred-language', language);
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};
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export const getBrowserLanguage = (): Language => {
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if (typeof window === 'undefined') return defaultLanguage;
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const browserLang = navigator.language.toLowerCase();
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if (browserLang.startsWith('zh-cn') || browserLang.startsWith('zh-hans')) {
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return 'zh-CN';
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}
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if (browserLang.startsWith('zh-tw') || browserLang.startsWith('zh-hant')) {
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return 'zh-TW';
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}
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if (browserLang.startsWith('en')) {
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return 'en';
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}
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return defaultLanguage;
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};
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