middleware.ts

import { NextResponse, NextRequest } from 'next/server';
import { protectedRoutes, authRedirectRoutes, apiAuthPrefix } from './routes';
import { currentUserSession } from './shared/actions/auth';
import { match } from 'path-to-regexp';

/**
 * 인증 및 권한 부여 ,서버 측 리디렉션, 경로 재작성
 */
const middleware = async (request: NextRequest) => {
  const { nextUrl } = request;
  const session = await currentUserSession();
  const isLoggedIn = !!session;

  if (isApiAuthRequest(nextUrl.pathname)) {
    return NextResponse.next();
  }

  // 로그인이 필요한 경로에 대한 처리
  if (isProtectedRoute(nextUrl.pathname)) {
    if (!isLoggedIn) {
      return NextResponse.redirect(new URL('/auth/login', nextUrl));
    }

    // /bucket-landing으로 접속할 경우 tab=저축생활+1편으로 주소 바꿈
    if (nextUrl.pathname === '/bucket-landing' && !nextUrl.searchParams.get('tab')) {
      return NextResponse.redirect(new URL('/bucket-landing?tab=저축생활+1편', nextUrl));
    }

    return NextResponse.next();
  }

  // 로그인 한 사용자가 접근하면 홈으로 리디렉션
  if (isAuthRedirectRoute(nextUrl.pathname)) {
    if (isLoggedIn) {
      return NextResponse.redirect(new URL('/', nextUrl));
    }
    return NextResponse.next();
  }
};
export default middleware;

export const config = {
  matcher: ['/((?!.+\\.[\\w]+$|_next).*)', '/', '/(api|trpc)(.*)']
};

const isApiAuthRequest = (pathname: string) => pathname.startsWith(apiAuthPrefix);

const isProtectedRoute = (pathname: string) =>
  protectedRoutes.some((url) => Boolean(match(url)(pathname)));

const isAuthRedirectRoute = (pathname: string) =>
  authRedirectRoutes.some((url) => Boolean(match(url)(pathname)));