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