Pre-loved-Project · ghdtnals · Nov 26, 2025 · Nov 21, 2025 · Nov 21, 2025 · Nov 21, 2025
diff --git a/src/app/detail/[postingId]/page.tsx b/src/app/detail/[postingId]/page.tsx
@@ -1,32 +1,29 @@
-"use client";
-
-import { useParams } from "next/navigation";
-import { useQuery } from "@tanstack/react-query";
+import {
+  QueryClient,
+  dehydrate,
+  HydrationBoundary,
+} from "@tanstack/react-query";
 import { getPostDetail } from "@/entities/post/api/getPostDetail";
-import { PostDetailSection } from "@/widgets/postDetail/ui/PostDetailSection";
-import { SellerPostsSection } from "@/widgets/postDetail/ui/SellerPostsSection";
+import PostDetailPageClient from "@/widgets/postDetail/ui/DetailPage.client";
 
-export default function PostDetailPage() {
-  const { postingId } = useParams<{ postingId: string }>();
+export default async function Page({
+  params,
+}: {
+  params: { postingId: string };
+}) {
+  const { postingId } = params;
   const id = Number(postingId);
+  const queryClient = new QueryClient();
 
-  const {
-    data: post,
-    isLoading,
-    isError,
-  } = useQuery({
+  await queryClient.prefetchQuery({
     queryKey: ["postDetail", id],
     queryFn: () => getPostDetail(id),
+    staleTime: Infinity,
   });
 
-  if (isLoading) return <p className="text-center text-white">로딩 중...</p>;
-  if (isError || !post)
-    return <p className="text-center text-white">게시글을 찾을 수 없습니다.</p>;
-
   return (
-    <main className="text-white">
-      <PostDetailSection post={post} />
-      <SellerPostsSection sellerId={post.sellerId} />
-    </main>
+    <HydrationBoundary state={dehydrate(queryClient)}>
+      <PostDetailPageClient postingId={postingId} />
+    </HydrationBoundary>
   );
 }
diff --git a/src/app/layout.tsx b/src/app/layout.tsx
@@ -6,7 +6,6 @@ import Header from "@/widgets/header/ui/Header";
 import { ModalContainer } from "@/shared/ui/ModalContainer/ModalContainer";
 import ChatContainer from "@/features/chat/ui/ChatContainer";
 import { ReactQueryProvider } from "@/shared/lib/provider";
-import { ClientLayout } from "@/shared/lib/ClientLayout";
 
 const myFont = localFont({
   src: "../shared/fonts/PretendardVariable.woff2",
@@ -24,29 +23,23 @@ export default function RootLayout({
 }) {
   return (
     <html lang="kr" className={myFont.className}>
-      <body className="mx-auto max-w-[1200px] bg-[#1c1c22] pt-[70px] md:pt-[80px] xl:pt-[100px]">
+      <body className="mx-auto max-w-[1200px] bg-[#1c1c22] pt-[70px] md:pt-20 xl:pt-[100px]">
         <ReactQueryProvider>
-          <ClientLayout>
-            <Suspense fallback={null}>
-              <Header />
-            </Suspense>
+          <Suspense fallback={null}>
+            <Header />
+          </Suspense>
 
-            <Suspense
-              fallback={<div className="p-4 text-gray-400">Loading...</div>}
-            >
-              {children}
-            </Suspense>
+          {children}
 
-            <div id="modal-root" />
+          <div id="modal-root" />
 
-            <Suspense fallback={null}>
-              <ChatContainer />
-            </Suspense>
+          <Suspense fallback={null}>
+            <ChatContainer />
+          </Suspense>
 
-            <Suspense fallback={null}>
-              <ModalContainer />
-            </Suspense>
-          </ClientLayout>
+          <Suspense fallback={null}>
+            <ModalContainer />
+          </Suspense>
         </ReactQueryProvider>
       </body>
     </html>

diff --git a/src/app/my/page.tsx b/src/app/my/page.tsx
@@ -1,12 +1,16 @@
 "use client";
-import { useState, useEffect } from "react";
+
+import { useState, useCallback } from "react";
+import { useQuery } from "@tanstack/react-query";
 import Profile, { ProfileProps } from "@/entities/user/ui/card/Profile";
+import ProfileSkeleton from "@/entities/user/ui/card/ProfileSkeleton";
 import PostCard from "@/entities/post/ui/card/PostCard";
 import { PostCreateButton } from "@/features/createPost/ui/PostCreateButton/PostCreateButton";
 import Tab from "@/widgets/mypage/ui/Tab.tsx/Tab";
-import { apiFetch } from "@/shared/api/fetcher";
 import { useModalStore } from "@/shared/model/modal.store";
 import { usePostCreateModal } from "@/features/createPost/lib/usePostCreateModal";
+import { getMyPosts, getMyProfile } from "@/entities/user/api/mypage";
+import type { Post } from "@/entities/post/model/types/post";
 
 const options = [
   { label: "판매중 상품", value: "selling" },
@@ -15,76 +19,42 @@ const options = [
   { label: "관심 상품", value: "favorite" },
 ];
 
-interface PostListItem {
-  postingId: number;
-  sellerId: number;
-  title: string;
-  price: number;
-  content: string;
-  category: string;
-  createdAt: string;
-  likeCount: number;
-  chatCount: number;
-  viewCount: number;
-  thumbnail: string;
-}
+const emptyMessageMap: Record<string, string> = {
+  selling: "등록되어 있는 상품이 없습니다.",
+  sold: "판매 완료된 상품이 없습니다.",
+  purchased: "구매 완료된 상품이 없습니다.",
+  favorite: "즐겨찾기한 상품이 없습니다.",
+};
 
-const Mypage = () => {
-  const [selected, setSelected] = useState(options[0].value);
-  const [userProfile, setUserProfile] = useState<ProfileProps | null>(null);
-  const [posts, setPosts] = useState<PostListItem[]>([]);
-  const [loading, setLoading] = useState(false);
+export default function Page() {
+  const [selectedTab, setSelectedTab] = useState(options[0].value);
   const { openModal, closeModal } = useModalStore();
+
+  const {
+    data: userProfile,
+    isLoading: profileLoading,
+    refetch: refetchUserProfile,
+  } = useQuery<ProfileProps>({
+    queryKey: ["userProfile"],
+    queryFn: getMyProfile,
+  });
+
+  const {
+    data: postsData,
+    isLoading: postsLoading,
+    refetch: refetchPosts,
+  } = useQuery<{ data: Post[] }>({
+    queryKey: ["myPosts", selectedTab],
+    queryFn: () => getMyPosts(selectedTab),
+  });
+
   const { openPostCreateModal } = usePostCreateModal({
     onSuccess: async () => {
-      await fetchPosts(selected);
+      await refetchPosts();
     },
   });
 
-  async function fetchUserProfile() {
-    try {
-      const data = await apiFetch<ProfileProps>("/api/users/me", {
-        method: "GET",
-      });
-      setUserProfile(data);
-    } catch (error) {
-      console.error("유저 정보 로딩 실패: ", error);
-    }
-  }
-
-  async function fetchPosts(status: string) {
-    //TODO: sold | purchase | favorite 기능 구현되면 지우기
-    if (status != "selling") {
-      setPosts([]);
-    }
-
-    try {
-      setLoading(true);
-      const res = await apiFetch<{ data: PostListItem[] }>(
-        `/api/postings/my?status=${status}`,
-        {
-          method: "GET",
-        },
-      );
-      setPosts(res.data);
-    } catch (error) {
-      console.error("현재 유저 관련 게시글 불러오기 실패 : ", error);
-      setPosts([]);
-    } finally {
-      setLoading(false);
-    }
-  }
-
-  useEffect(() => {
-    fetchUserProfile();
-  }, []);
-
-  useEffect(() => {
-    fetchPosts(selected);
-  }, [selected]);
-
-  // 프로필 수정 모달 열기 함수
-  const handleEditProfile = () => {
+  const handleEditProfile = useCallback(() => {
     if (!userProfile) return;
 
     openModal("editProfile", {
@@ -101,7 +71,7 @@ const Mypage = () => {
             },
           });
         }, 100);
-        await fetchUserProfile();
+        await refetchUserProfile();
       },
       onError: () => {
         closeModal();
@@ -114,35 +84,31 @@ const Mypage = () => {
         });
       },
     });
-  };
+  }, [userProfile, openModal, closeModal, refetchUserProfile]);
 
-  //카테고리별 빈 상태 문구
-  const emptyMessageMap: Record<string, string> = {
-    selling: "등록되어 있는 상품이 없습니다.",
-    sold: "판매 완료된 상품이 없습니다.",
-    purchased: "구매 완료된 상품이 없습니다.",
-    favorite: "즐겨찾기한 상품이 없습니다.",
-  };
+  const posts = postsData?.data || [];
 
   return (
-    <main className="m-auto flex max-w-[335px] flex-col items-center justify-center gap-[60px] py-[30px] md:max-w-[510px] md:py-[40px] xl:max-w-[1340px] xl:flex-row xl:items-start xl:justify-start xl:gap-[80px] xl:py-[60px]">
-      {userProfile && <Profile {...userProfile} onEdit={handleEditProfile} />}
+    <main className="m-auto flex max-w-[335px] flex-col items-center justify-center gap-[60px] py-[30px] md:max-w-[510px] md:py-10 xl:max-w-[1340px] xl:flex-row xl:items-start xl:justify-start xl:gap-20 xl:py-[60px]">
+      {profileLoading || !userProfile ? (
+        <ProfileSkeleton />
+      ) : (
+        <Profile {...userProfile} onEdit={handleEditProfile} />
+      )}
 
       <section className="flex flex-col gap-[30px]">
-        <Tab options={options} selected={selected} onChange={setSelected} />
-        {loading ? (
-          <p className="mt-10 text-center text-gray-400">로딩 중...</p>
-        ) : selected !== "selling" ? (
-          <p className="mt-10 text-center text-gray-400">
-            {emptyMessageMap[selected]} <br />
-            <span className="text-sm text-gray-500">(TODO: API 구현 예정)</span>
-          </p>
-        ) : posts.length == 0 ? (
+        <Tab
+          options={options}
+          selected={selectedTab}
+          onChange={setSelectedTab}
+        />
+
+        {postsLoading ? null : posts.length === 0 ? (
           <p className="mt-10 text-center text-gray-400">
-            {emptyMessageMap[selected]}
+            {emptyMessageMap[selectedTab]}
           </p>
         ) : (
-          <ul className="grid grid-cols-2 gap-[15px] xl:grid-cols-3 xl:gap-[20px]">
+          <ul className="grid grid-cols-2 gap-[15px] xl:grid-cols-3 xl:gap-5">
             {posts.map((post) => (
               <li key={post.postingId}>
                 <PostCard {...post} />
@@ -154,6 +120,4 @@ const Mypage = () => {
       </section>
     </main>
   );
-};
-
-export default Mypage;
+}
diff --git a/src/app/page.tsx b/src/app/page.tsx
@@ -6,7 +6,7 @@ import {
 import { getPosts } from "@/entities/post/api/getPosts";
 import HomePageClient from "@/widgets/main/ui/Client/HomePage.client";
 
-export default async function HomePage({
+export default async function Page({
   searchParams,
 }: {
   searchParams: Promise<Record<string, string>>;

diff --git a/src/entities/post/ui/card/PostCard.tsx b/src/entities/post/ui/card/PostCard.tsx
@@ -1,5 +1,10 @@
+"use client";
+
 import Image from "next/image";
 import Link from "next/link";
+import { useQueryClient } from "@tanstack/react-query";
+import { getPostDetail } from "@/entities/post/api/getPostDetail";
+import { useDebouncedCallback } from "@/shared/lib/useDebouncedCallback";
 
 interface PostCardProps {
   postingId: number;
@@ -23,8 +28,26 @@ const PostCard = ({
   viewCount,
   thumbnail,
 }: PostCardProps) => {
+  const queryClient = useQueryClient();
+
+  const { debouncedCallback: handleMouseEnter, cancel: handleMouseLeave } =
+    useDebouncedCallback(() => {
+      const cached = queryClient.getQueryData(["postDetail", postingId]);
+      if (cached) return;
+
+      queryClient.prefetchQuery({
+        queryKey: ["postDetail", postingId],
+        queryFn: () => getPostDetail(postingId),
+        staleTime: 1000 * 60 * 3,
+      });
+    }, 200);
+
   return (
-    <Link href={`/detail/${postingId}`}>
+    <Link
+      href={`/detail/${postingId}`}
+      onMouseEnter={handleMouseEnter}
+      onMouseLeave={handleMouseLeave}
+    >
       <article className="w-full rounded-lg border border-[#353542] bg-[#252530] p-2.5 md:pb-5 xl:pb-6">
         <div className="flex flex-col gap-2.5 md:gap-5 xl:gap-6">
           <div className="relative h-24 w-full overflow-hidden rounded-md md:h-40 xl:h-56">
@@ -49,14 +72,12 @@ const PostCard = ({
             </h1>
 
             <p className="text-xs text-[#9FA6B2] md:text-sm">
-              {price?.toLocaleString()} 원
+              {price.toLocaleString()} 원
             </p>
 
             <div className="flex w-full flex-col gap-1.5 text-xs leading-none font-light text-[#6E6E82] md:flex-row md:justify-between md:text-sm xl:text-base">
               <div className="flex gap-1.5">
-                <span aria-label="조회 수" title="조회 수">
-                  조회
-                </span>
+                <span>조회</span>
                 <span>{viewCount}</span>
               </div>