Files
ignum/middleware.ts
nabijonovdavronbek619@gmail.com de2554a2e7 language Switcher added
2026-01-27 17:36:09 +05:00

136 lines
3.7 KiB
TypeScript

import { NextRequest, NextResponse } from "next/server";
import { match as matchLocale } from "@formatjs/intl-localematcher";
import Negotiator from "negotiator";
const PUBLIC_PAGES = ["/login", "/register"];
const LOCALES = ["uz", "ru", "en"];
const DEFAULT_LOCALE = "uz";
type Locale = (typeof LOCALES)[number];
function getLocaleFromPathname(pathname: string): Locale | null {
const segments = pathname.split("/").filter(Boolean);
const firstSegment = segments[0];
if (firstSegment && LOCALES.includes(firstSegment as Locale)) {
return firstSegment as Locale;
}
return null;
}
function getLocaleFromCookie(request: NextRequest): Locale | null {
const cookieLocale = request.cookies.get("NEXT_LOCALE")?.value;
if (cookieLocale && LOCALES.includes(cookieLocale as Locale)) {
return cookieLocale as Locale;
}
return null;
}
function getLocaleFromHeaders(request: NextRequest): Locale {
const negotiatorHeaders: Record<string, string> = {};
request.headers.forEach((value, key) => {
negotiatorHeaders[key] = value;
});
const languages = new Negotiator({ headers: negotiatorHeaders }).languages();
try {
return matchLocale(
languages,
LOCALES as unknown as string[],
DEFAULT_LOCALE
) as Locale;
} catch {
return DEFAULT_LOCALE;
}
}
export function middleware(request: NextRequest) {
const { pathname, search } = request.nextUrl;
// Skip public files and API routes
if (
pathname.includes(".") ||
pathname.startsWith("/api") ||
pathname.startsWith("/_next")
) {
return NextResponse.next();
}
// 1. Check URL locale
const localeFromPath = getLocaleFromPathname(pathname);
// 2. Check cookie locale
const localeFromCookie = getLocaleFromCookie(request);
// 3. Check browser locale
const localeFromBrowser = getLocaleFromHeaders(request);
// Priority: URL > Cookie > Browser
const preferredLocale =
localeFromPath || localeFromCookie || localeFromBrowser;
// Faqat kerakli sahifalarni redirect qilamiz
const isPublicPage = PUBLIC_PAGES.some((page) => pathname === page);
if (isPublicPage) {
const url = request.nextUrl.clone();
url.pathname = `/${DEFAULT_LOCALE}/verify-otp`;
url.search = search; // ?code=1111&phone=...
return NextResponse.redirect(url);
}
// If URL has no locale, redirect with preferred locale
if (!localeFromPath) {
const newUrl = new URL(`/${preferredLocale}/${pathname}`, request.url);
return NextResponse.redirect(newUrl);
}
// If URL locale differs from cookie, update cookie
if (localeFromPath !== localeFromCookie) {
const response = NextResponse.next();
// ✅ Set cookie on server side
response.cookies.set("NEXT_LOCALE", localeFromPath, {
path: "/",
maxAge: 31536000, // 1 year
sameSite: "lax",
});
// ✅ Pass locale to request headers for server components
const requestHeaders = new Headers(request.headers);
requestHeaders.set("x-locale", localeFromPath);
requestHeaders.set("x-pathname", pathname);
return NextResponse.next({
request: {
headers: requestHeaders,
},
});
}
// Normal flow - just pass locale in headers
const response = NextResponse.next();
const requestHeaders = new Headers(request.headers);
requestHeaders.set("x-locale", localeFromPath);
requestHeaders.set("x-pathname", pathname);
return NextResponse.next({
request: {
headers: requestHeaders,
},
});
}
export const config = {
matcher: [
// Match all pathnames except for
// - … if they start with `/api`, `/_next` or `/_vercel`
// - … the ones containing a dot (e.g. `favicon.ico`)
'/((?!api|_next|_vercel|.*\\..*).*)',
],
};