Files
baya-monorepo/client/middleware.ts
T
2026-07-20 01:35:15 +03:30

79 lines
3.7 KiB
TypeScript

import createMiddleware from 'next-intl/middleware';
import { type NextRequest, NextResponse } from 'next/server';
import { routing } from './src/i18n/routing';
import { COOKIE_NAMES } from './src/lib/cookies';
import { isTokenAlive } from './src/lib/auth/token';
import { HEADER_NAMES, PUBLIC_PATHS, RETURN_URL_PARAM, ROUTES } from './src/constants';
const intlMiddleware = createMiddleware(routing);
export default function middleware(request: NextRequest) {
const i18nResponse = intlMiddleware(request);
// If next-intl is issuing a locale normalization redirect, let it through immediately
if (i18nResponse.status === 307 || i18nResponse.status === 308) {
return i18nResponse;
}
const { pathname } = request.nextUrl;
// Detect locale from the normalized URL (next-intl always puts it at position 1)
const locale = routing.locales.find(
(l) => pathname === `/${l}` || pathname.startsWith(`/${l}/`),
) ?? routing.defaultLocale;
// Strip the locale segment to get the actual path (e.g. /fa/login → /login)
const pathWithoutLocale = '/' + pathname.split('/').slice(2).join('/');
const isPublic = PUBLIC_PATHS.some((p) => pathWithoutLocale.startsWith(p));
const isAuthenticated = isTokenAlive(request.cookies.get(COOKIE_NAMES.ACCESS_TOKEN)?.value);
// Guest front door (ui-phase-13): an unauthenticated hit on the exact root is REWRITTEN — never
// redirected — to the public landing, so the URL/SEO canonical stays '/'. Exact match only:
// never add ROUTES.HOME ('/') to PUBLIC_PATHS itself, whose `startsWith` check below would
// otherwise silently un-gate every route (§ the routes.ts comment on PUBLIC_PATHS).
if (!isAuthenticated && pathWithoutLocale === ROUTES.HOME) {
return NextResponse.rewrite(new URL(`/${locale}${ROUTES.WELCOME}`, request.url));
}
// A signed-in visitor landing on the marketing page directly gets their real home instead.
if (isAuthenticated && pathWithoutLocale === ROUTES.WELCOME) {
return NextResponse.redirect(new URL(`/${locale}${ROUTES.HOME}`, request.url));
}
if (!isPublic && !isAuthenticated) {
const loginUrl = new URL(`/${locale}${ROUTES.LOGIN}`, request.url);
// Carry the attempted (locale-stripped) destination so a deep link — an SMS booking link, a
// shared nurse profile — survives the round trip through login instead of dumping the user
// on their role home. Validated same-origin + role-permitting on the way back out
// (resolvePostLoginDestination in services/auth/routing.ts); '/' is the default anyway.
const next = pathWithoutLocale + request.nextUrl.search;
if (next && next !== '/') {
loginUrl.searchParams.set(RETURN_URL_PARAM, next);
}
return NextResponse.redirect(loginUrl);
}
const requestHeaders = new Headers(request.headers);
requestHeaders.set(HEADER_NAMES.LOCALE, locale);
const response = NextResponse.next({ request: { headers: requestHeaders } });
// Preserve response headers set by next-intl (e.g. Link: alternate hreflang)
i18nResponse.headers.forEach((value, key) => {
response.headers.set(key, value);
});
return response;
}
export const config = {
// Match all pathnames except internal Next.js paths, API routes, and static files. The bare
// root '/' is listed explicitly alongside the catch-all regex — Next's matcher does not
// reliably invoke middleware for the literal root path through the negative-lookahead pattern
// alone (verified empirically in this Next 16/Turbopack build: '/' skipped middleware entirely
// and 404'd, while every other path matched fine). This is load-bearing for ui-phase-13's
// guest-front-door rewrite, which only fires on an exact '/' match.
matcher: ['/', '/((?!_next|_vercel|api|.*\\..*).*)'],
};