Files
manoon-headless/middleware.ts

52 lines
1.6 KiB
TypeScript

import { NextResponse } from "next/server";
import type { NextRequest } from "next/server";
import { SUPPORTED_LOCALES, DEFAULT_LOCALE, LOCALE_COOKIE, getPathWithoutLocale, buildLocalePath, isValidLocale } from "@/lib/i18n/locales";
import type { Locale } from "@/lib/i18n/locales";
const OLD_SERBIAN_PATHS = ["products", "about", "contact", "checkout"];
function detectLocale(cookieLocale: string | undefined, acceptLanguage: string): Locale {
if (cookieLocale && isValidLocale(cookieLocale)) {
return cookieLocale;
}
if (acceptLanguage.includes("en")) {
return "en";
}
return DEFAULT_LOCALE;
}
export default function middleware(request: NextRequest) {
const pathname = request.nextUrl.pathname;
const cookieLocale = request.cookies.get(LOCALE_COOKIE)?.value;
const acceptLanguage = request.headers.get("accept-language") || "";
if (pathname === "/" || pathname === "") {
const locale = detectLocale(cookieLocale, acceptLanguage);
const url = request.nextUrl.clone();
url.pathname = buildLocalePath(locale, "/");
return NextResponse.redirect(url, 301);
}
const isOldSerbianPath = OLD_SERBIAN_PATHS.some(
(path) => pathname === `/${path}` || pathname.startsWith(`/${path}/`)
);
if (isOldSerbianPath) {
const locale = detectLocale(cookieLocale, acceptLanguage);
const newPath = buildLocalePath(locale, pathname);
const url = request.nextUrl.clone();
url.pathname = newPath;
return NextResponse.redirect(url, 301);
}
return NextResponse.next();
}
export const config = {
matcher: [
"/",
"/(sr|en|de|fr)/:path*",
"/((?!api|_next|_vercel|.*\\..*).*)",
],
};