import type { NextRequest } from 'next/server';
import createMiddleware from 'next-intl/middleware';

import { routing } from './i18n/routing';

/**
 * Locale negotiation at the edge.
 *
 * Note the filename: Next.js 16 renamed the `middleware` convention to `proxy`.
 * `middleware.ts` still works but is deprecated, so this uses the current name.
 *
 * Responsibilities are deliberately narrow — resolve a locale, rewrite or
 * redirect, and nothing else. Proxy code runs on every request and may be
 * deployed to a CDN edge, so it must not reach for the database or shared
 * application state.
 */
const handleI18nRouting = createMiddleware(routing);

export function proxy(request: NextRequest) {
  return handleI18nRouting(request);
}

export const config = {
  /**
   * Everything except API routes, Next internals and files with an extension.
   * Matching static assets would add a proxy hop to every image and font for
   * no benefit.
   */
  matcher: '/((?!api|_next|_vercel|.*\\..*).*)',
};