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

// Create the internationalization middleware
const intlMiddleware = createMiddleware({
  // A list of all locales that are supported
  locales: ['en', 'de'],

  // Used when no locale matches
  defaultLocale: 'en'
});

// Main middleware that logs all requests
export default function middleware(request: NextRequest) {
  const startTime = Date.now();
  const { method, url, headers } = request;
  const userAgent = headers.get('user-agent') || 'unknown';
  const referer = headers.get('referer') || 'none';
  const ip = headers.get('x-forwarded-for') || headers.get('x-real-ip') || 'unknown';

  // Log incoming request
  console.log(`Incoming request: method=${method} url=${url}`);

  try {
    // Apply internationalization middleware
    const response = intlMiddleware(request);
    return response;
  } catch (error) {
    console.error(`Request failed: method=${method} url=${url}`, error);
    throw error;
  }
}

export const config = {
  // Match only internationalized pathnames
  matcher: ['/((?!api|_next|_vercel|health|.*\\..*).*)', '/', '/(de|en)/:path*']
};