2025-RealCoding · Jaeho-Site · Jun 15, 2025 · Jun 15, 2025
diff --git a/package-lock.json b/package-lock.json
diff --git a/src/app/checkout/page.tsx b/src/app/checkout/page.tsx
@@ -1,21 +1,87 @@
-// CheckoutPage
-import { useState } from "react";
-import { ProductItem } from "@/types/Product";
+"use client";
+
+import { useState, useEffect } from "react";
+import Link from "next/link";
 
 interface CheckoutItem {
-  product: ProductItem;
+  productId: string;
+  title: string;
+  lprice: string;
   quantity: number;
 }
+
 //  과제 3
 export default function CheckoutPage() {
   const [items, setItems] = useState<CheckoutItem[]>([]);
-  // 3.1. 결제하기 구현
+  const [totalAmount, setTotalAmount] = useState(0);
+
+  // 3.1. 결제 완료 페이지 구현
+  useEffect(() => {
+    // localStorage에서 결제 아이템들 가져오기
+    const checkoutData = localStorage.getItem("checkoutItems");
+
+    if (checkoutData) {
+      const parsedItems: CheckoutItem[] = JSON.parse(checkoutData);
+      setItems(parsedItems);
+
+      // 총 금액 계산
+      const total = parsedItems.reduce((sum, item) => {
+        return sum + (Number(item.lprice) * item.quantity);
+      }, 0);
+      setTotalAmount(total);
+
+      // 결제 완료 후 localStorage에서 삭제
+      localStorage.removeItem("checkoutItems");
+    }
+  }, []);
+
   return (
     <div className="p-6 max-w-3xl mx-auto bg-white rounded shadow mt-6">
-      <h1 className="text-2xl font-bold mb-4">✅ 결제가 완료되었습니다!</h1>
+      <h1 className="text-2xl font-bold mb-4">결제가 완료되었습니다!</h1>
+
       {/* 3.1. 결제하기 구현 */}
-      <div></div>
+      {items.length === 0 ? (
+        <p className="text-gray-500 text-center py-8">결제된 아이템이 없습니다</p>
+      ) : (
+        <div>
+          <h2 className="text-lg font-semibold mb-4">주문 내역</h2>
+          <ul className="space-y-4 mb-6">
+            {items.map((item, index) => (
+              <li key={index} className="flex justify-between items-center border-b pb-2">
+                <div>
+                  <p className="font-medium" dangerouslySetInnerHTML={{ __html: item.title }}></p>
+                  <p className="text-sm text-gray-500">수량: {item.quantity}개</p>
+                </div>
+                <div className="text-right">
+                  <p className="font-bold text-red-500">
+                    {(Number(item.lprice) * item.quantity).toLocaleString()}원
+                  </p>
+                  <p className="text-xs text-gray-400">
+                    개당 {Number(item.lprice).toLocaleString()}원
+                  </p>
+                </div>
+              </li>
+            ))}
+          </ul>
+
+          <div className="border-t pt-4">
+            <div className="flex justify-between items-center text-xl font-bold">
+              <span>총 결제 금액:</span>
+              <span className="text-red-500">{totalAmount.toLocaleString()}원</span>
+            </div>
+          </div>
+        </div>
+      )}
+
       {/* 3.2. 홈으로 가기 버튼 구현 */}
+      <div className="flex justify-center mt-8">
+        <Link 
+          href="/"
+          className="px-6 py-3 bg-blue-600 text-white rounded-lg hover:bg-blue-700 transition-colors"
+        >
+          홈 화면으로 돌아가기
+        </Link>
+      </div>
     </div>
   );
 }
diff --git a/src/app/layout.tsx b/src/app/layout.tsx
@@ -1,6 +1,7 @@
 import type { Metadata } from "next";
 import { Geist, Geist_Mono } from "next/font/google";
 import "./globals.css";
+import { UserProvider } from "@/context/UserContext";
 
 const geistSans = Geist({
   variable: "--font-geist-sans",
@@ -27,7 +28,9 @@ export default function RootLayout({
       <body
         className={`${geistSans.variable} ${geistMono.variable} antialiased`}
       >
-        {children}
+        <UserProvider>
+          {children}
+        </UserProvider>
       </body>
     </html>
   );

diff --git a/src/app/mypage/page.tsx b/src/app/mypage/page.tsx
@@ -1,14 +1,41 @@
+"use client";
+
+import { useUser } from "@/context/UserContext";
+import Header from "@/component/layout/Header";
+import Link from "next/link";
+
 // 과제 1: 마이페이지 구현
 export default function MyPage() {
-  // 1.1. UserContext를 활용한 Mypage 구현 (UserContext에 아이디(userId: string), 나이(age: number), 핸드폰번호(phoneNumber: string) 추가)
+  const { user } = useUser();
 
   return (
     <div className="flex flex-col items-center min-h-screen bg-gray-50">
-      {/* 1.2. Header Component를 재활용하여 Mypage Header 표기 (title: 마이페이지) */}
-      <p>마이페이지</p>
-      {/* Mypage 정보를 UserContext 활용하여 표시 (이름, 아이디, 나이, 핸드폰번호 모두 포함) */}
+      <Header title="마이페이지" />
+
+      <div className="w-full max-w-md p-6 mt-8 bg-white rounded-lg shadow-md">
+        <h2 className="text-2xl font-bold mb-6">회원 정보</h2>
+        <div className="space-y-4">
+          <div>
+            <p className="text-gray-600">이름 : {user.name}</p>
+          </div>
+          <div>
+            <p className="text-gray-600">아이디 :{user.userId}</p>
+          </div>
+          <div>
+            <p className="text-gray-600">나이 :{user.age}</p>
+          </div>
+          <div>
+            <p className="text-gray-600">전화번호 :{user.phoneNumber} </p>
+          </div>
+        </div>
+      </div>
 
-      {/* 1.3. 홈으로 가기 버튼 구현(Link or Router 활용) */}
+      <Link 
+        href="/"
+        className="mt-8 px-6 py-2 bg-blue-600 text-white rounded-md hover:bg-blue-700 transition-colors"
+      >
+        홈으로 가기
+      </Link>
     </div>
   );
 }
diff --git a/src/app/search/layout.tsx b/src/app/search/layout.tsx
@@ -1,14 +1,11 @@
 import { SearchProvider } from "../../context/SearchContext";
-import { UserProvider } from "../../context/UserContext";
 
 export default function SearchLayout({
   children,
 }: {
   children: React.ReactNode;
 }) {
   return (
-    <UserProvider>
-      <SearchProvider>{children}</SearchProvider>
-    </UserProvider>
+    <SearchProvider>{children}</SearchProvider>
   );
 }
diff --git a/src/app/search/page.tsx b/src/app/search/page.tsx
@@ -5,19 +5,12 @@ import Footer from "../../component/layout/Footer";
 import SearchInput from "../../component/search/SearchInput";
 import ProductCart from "../../component/shopping/ProductCart";
 import { useUser } from "../../context/UserContext";
-import { useEffect } from "react";
 import { useSearch } from "../../context/SearchContext";
 
 export default function SearchHome() {
-  const { user, setUser } = useUser();
+  const { user } = useUser();
   const { result } = useSearch();
 
-  //  페이지 최초 렌더링 될 때, setUser로 이름 설정
-  useEffect(() => {
-    //  학번 + 이름 형태로 작성 (ex. 2025***** 내이름 )
-    setUser({ name: "" });
-  }, []);
-
   return (
     <div className="flex justify-center">
       <div className="w-[80%]">

diff --git a/src/component/search/SearchInput.tsx b/src/component/search/SearchInput.tsx
@@ -1,8 +1,17 @@
 "use client";
 import { useSearch } from "@/context/SearchContext";
+import { useRef, useEffect } from "react";
 
 export default function SearchInput() {
   const { query, setQuery, setResult } = useSearch();
+  const inputRef = useRef<HTMLInputElement>(null);
+
+  // 2.2. SearchInput 컴포넌트가 최초 렌더링 될 때, input tag에 포커스 되는 기능
+  useEffect(() => {
+    if (inputRef.current) {
+      inputRef.current.focus();
+    }
+  }, []);
 
   // 검색 기능
   const search = async () => {
@@ -18,14 +27,14 @@ export default function SearchInput() {
     }
   };
 
-  // 2.2. SearchInput 컴포넌트가 최초 렌더링 될 때, input tag에 포커스 되는 기능
-  const handleInputChange = () => {};
-
-  // 과제 1-2-3: 페이지 최초 렌더링 시, input에 포커스 되는 기능 (useRef)
+  const handleInputChange = (e: React.ChangeEvent<HTMLInputElement>) => {
+    setQuery(e.target.value);
+  };
 
   return (
     <div className="flex justify-center items-center gap-2 mt-4">
       <input
+        ref={inputRef}
         type="text"
         value={query}
         onChange={handleInputChange}

diff --git a/src/component/shopping/CartList.tsx b/src/component/shopping/CartList.tsx
@@ -1,5 +1,6 @@
 "use client";
 import { ProductItem } from "@/types/Product";
+import { useRouter } from "next/navigation";
 
 interface Props {
   cart: { [productId: string]: number };
@@ -8,6 +9,8 @@ interface Props {
 }
 
 export default function CartList({ cart, products, onRemove }: Props) {
+  const router = useRouter();
+
   const cartItems = Object.entries(cart)
     .map(([id, quantity]) => {
       const product = products.find((p) => p.productId === id);
@@ -21,7 +24,25 @@ export default function CartList({ cart, products, onRemove }: Props) {
   );
 
   // 2.4 결제하기: "결제하기" 버튼을 클릭하면, 현재 장바구니에 담긴 상품을 확인해 **localStorage**에 저장 후, 결제완료(/checkout) 페이지로 이동한다.
-  const handleCheckout = () => {};
+  const handleCheckout = () => {
+    if (cartItems.length === 0) {
+      alert("장바구니가 비어있습니다.");
+      return;
+    }
+
+    // 장바구니에 담긴 아이템들을 localStorage에 저장
+    const checkoutData = cartItems.map(item => ({
+      productId: item.productId,
+      title: item.title,
+      lprice: item.lprice,
+      quantity: item.quantity
+    }));
+
+    localStorage.setItem("checkoutItems", JSON.stringify(checkoutData));
+
+    // 결제완료 페이지로 이동
+    router.push("/checkout");
+  };
 
   return (
     <div className="p-4 bg-white rounded shadow mt-6">

diff --git a/src/component/shopping/ProductCart.tsx b/src/component/shopping/ProductCart.tsx
@@ -8,6 +8,12 @@ export default function ProductCart({ items }: { items: ProductItem[] }) {
   const [cart, setCart] = useState<{ [id: string]: number }>({}); // {"88159814281" : 1}
   const [showCart, setShowCart] = useState(false); //  과제 2.1
 
+  // 2.1. 장바구니에 아이템이 있을 때만 장바구니 영역 보이기
+  useEffect(() => {
+    const hasItems = Object.keys(cart).length > 0;
+    setShowCart(hasItems);
+  }, [cart]);
+
   //  카트에 담기
   const handleAddToCart = (item: ProductItem, quantity: number) => {
     setCart((prev) => ({
@@ -20,15 +26,24 @@ export default function ProductCart({ items }: { items: ProductItem[] }) {
   };
 
   /* 과제 2-3: Cart 아이템 지우기 */
-  const handleRemoveFromCart = () => {};
+  const handleRemoveFromCart = (productId: string) => {
+    setCart((prev) => {
+      const newCart = { ...prev };
+      delete newCart[productId];
+      return newCart;
+    });
+    localStorage.removeItem(productId);
+  };
 
   return (
     <div className="p-10">
       {/* 상품 리스트 */}
       <ProductList items={items} onAddToCart={handleAddToCart} />
       {/* 장바구니 */}
       {/* 2.1. 조건부 카트 보이기: 카트에 담긴 상품이 없으면 카트가 보이지 않고, 카트에 담긴 물건이 있으면 카트가 보인다 */}
-      <CartList cart={cart} products={items} onRemove={handleRemoveFromCart} />
+      {showCart && (
+        <CartList cart={cart} products={items} onRemove={handleRemoveFromCart} />
+      )}
     </div>
   );
 }
diff --git a/src/context/UserContext.tsx b/src/context/UserContext.tsx
@@ -1,12 +1,14 @@
 "use client";
-import { createContext, ReactNode, useContext, useState } from "react";
+import { createContext, ReactNode, useContext, useState, useEffect } from "react";
 
 // 과제 1.1 UserContext 구현
 
 // User
 interface User {
   name: string;
-  // age: number
+  userId: string;
+  age: number;
+  phoneNumber: string;
   // 추가하고 싶은 속성들 ...
 }
 // UserContextType
@@ -22,7 +24,13 @@ export const UserContext = createContext<UserContextType | undefined>(
 
 // 2. Provider 생성
 export const UserProvider = ({ children }: { children: ReactNode }) => {
-  const [user, setUser] = useState<User>({ name: "" });
+  const [user, setUser] = useState<User>({ 
+    name: "202102656 신재호", 
+    userId: "JaehoShin", 
+    age: 25, 
+    phoneNumber: "010-1234-5678" 
+  });
+
   return (
     <UserContext.Provider value={{ user, setUser }}>
       {children}