website-client-Nigeria/server/middleware/i18n.global.ts

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export default defineEventHandler((event: any) => {
// 服务端中间件,直接执行
const cookie = getCookie(event, 'i18n_redirected');
const acceptLanguage = getHeader(event, 'accept-language') || '';
let detectedLang = 'en'; // 默认英文
// 优先检查 cookie如果有 cookie 就使用 cookie 中的语言
if (cookie && ['cn', 'en'].includes(cookie)) {
detectedLang = cookie;
}
// 如果没有 cookie则根据浏览器语言检测
else if (acceptLanguage.includes('zh')) {
detectedLang = 'cn';
}
// 设置到 context 供后续使用
event.context.locale = detectedLang;
// 设置响应头
setHeader(event, 'X-Detected-Language', detectedLang);
});