From 450975607bb7f6cc14abf13e4ea541503dab318f Mon Sep 17 00:00:00 2001
From: Lim dong hyeon <ilhai3@naver.com>
Date: Sat, 1 Jun 2024 01:47:38 +0900
Subject: [PATCH] =?UTF-8?q?[#39]=20Feat:=20middleware=20=EC=84=A4=EC=A0=95?=
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---
 middleware.ts | 43 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 43 insertions(+)
 create mode 100644 middleware.ts

diff --git a/middleware.ts b/middleware.ts
new file mode 100644
index 00000000..22b17f09
--- /dev/null
+++ b/middleware.ts
@@ -0,0 +1,43 @@
+import { NextResponse } from 'next/server';
+import type { NextRequest } from 'next/server';
+
+const PROTECTED_PAGES = ['/start-family'];
+const PUBLIC_PAGES = ['/login'];
+
+export default function middleware(request: NextRequest) {
+  const { cookies, nextUrl } = request;
+  const path = nextUrl.pathname;
+  const isProtectedPage = PROTECTED_PAGES.includes(path);
+  const isPublicPage = PUBLIC_PAGES.includes(path);
+
+  // 로그인 상태 확인
+  const hasCookie = cookies.has('accessToken');
+
+  // 쿼리 파라미터에서 token 값 확인
+  const hasToken = nextUrl.search.includes('token');
+
+  // /start-family 페이지로 접근하는데 token이 있을 경우 진행
+  // /start-family 페이지로 접근하는데 token이 없을 경우 리다이렉션
+  // 추후 배포됐을 때 수정.
+  if (path === '/start-family' && hasToken) {
+    return NextResponse.next();
+  } else if (path === '/start-family' && !hasToken) {
+    return NextResponse.redirect(new URL('/login', request.nextUrl));
+  }
+
+  // 비로그인 상태일 때 로그인이 필요한 페이지에 접근 시 리다이렉션
+  if (!hasCookie && isProtectedPage) {
+    return NextResponse.redirect(new URL('/login', request.nextUrl));
+  }
+
+  // 로그인 상태일 때 로그인 페이지에 접근 시 리다이렉션
+  if (hasCookie && isPublicPage) {
+    return NextResponse.redirect(new URL('/', request.nextUrl.origin));
+  }
+
+  return NextResponse.next();
+}
+
+export const config = {
+  matcher: ['/login', '/start-family'],
+};