2025-RealCoding · SilverSupplier · Jun 15, 2025
diff --git a/src/app/checkout/page.tsx b/src/app/checkout/page.tsx
@@ -1,21 +1,75 @@
-// CheckoutPage
-import { useState } from "react";
+"use client";
+import { useEffect, useState } from "react";
 import { ProductItem } from "@/types/Product";
+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
+  useEffect(() => {
+    // localStorage에서 결제된 아이템 가져오기
+    const checkoutItems = localStorage.getItem('checkoutItems');
+    if (checkoutItems) {
+      setItems(JSON.parse(checkoutItems));
+      // 결제 완료 후 localStorage에서 데이터 삭제
+      localStorage.removeItem('checkoutItems');
+    }
+  }, []);
+
+  // 총 금액 계산
+  const total = items.reduce(
+    (sum, item) => sum + Number(item.lprice) * item.quantity,
+    0
+  );
+
   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>
-      {/* 3.1. 결제하기 구현 */}
-      <div></div>
-      {/* 3.2. 홈으로 가기 버튼 구현 */}
+
+      {items.length === 0 ? (
+        <p className="text-gray-500 text-center py-8">결제된 아이템이 없습니다</p>
+      ) : (
+        <div className="space-y-4">
+          {items.map((item) => (
+            <div key={item.productId} className="border-b pb-4">
+              <h3 className="font-medium" dangerouslySetInnerHTML={{ __html: item.title }}></h3>
+              <div className="flex justify-between text-sm text-gray-600 mt-2">
+                <span>수량: {item.quantity}개</span>
+                <span>가격: {Number(item.lprice).toLocaleString()}원</span>
+              </div>
+              <div className="text-right text-red-500 font-medium mt-1">
+                소계: {(Number(item.lprice) * item.quantity).toLocaleString()}원
+              </div>
+            </div>
+          ))}
+
+          <div className="border-t pt-4 mt-4">
+            <div className="flex justify-between items-center">
+              <span className="font-bold">총 결제 금액</span>
+              <span className="text-xl font-bold text-red-500">
+                {total.toLocaleString()}원
+              </span>
+            </div>
+          </div>
+        </div>
+      )}
+
+      <div className="mt-8">
+        <Link 
+          href="/"
+          className="block w-full text-center bg-blue-500 text-white py-3 rounded-lg hover:bg-blue-600 transition-colors"
+        >
+          홈으로 가기
+        </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 +1,48 @@
+"use client";
+import Header from "@/component/layout/Header";
+import { useUser } from "@/context/UserContext";
+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) */}
+    <div className="flex flex-col min-h-screen bg-gray-50">
+      <Header title="마이페이지" />
+
+      <div className="flex-1 p-8">
+        <div className="max-w-md mx-auto bg-white rounded-lg shadow p-6">
+          <h2 className="text-2xl font-bold mb-6">내 정보</h2>
+          <div className="space-y-4">
+            <div>
+              <p className="text-gray-600">이름</p>
+              <p className="font-medium">{user.name}</p>
+            </div>
+            <div>
+              <p className="text-gray-600">아이디</p>
+              <p className="font-medium">{user.userId}</p>
+            </div>
+            <div>
+              <p className="text-gray-600">나이</p>
+              <p className="font-medium">{user.age}세</p>
+            </div>
+            <div>
+              <p className="text-gray-600">핸드폰 번호</p>
+              <p className="font-medium">{user.phoneNumber}</p>
+            </div>
+          </div>
+        </div>
+      </div>
 
-      {/* 1.3. 홈으로 가기 버튼 구현(Link or Router 활용) */}
+      <div className="p-8">
+        <Link 
+          href="/"
+          className="block w-full max-w-md mx-auto bg-blue-500 text-white text-center py-3 rounded-lg hover:bg-blue-600 transition-colors"
+        >
+          홈으로 가기
+        </Link>
+      </div>
     </div>
   );
 }
diff --git a/src/component/search/SearchInput.tsx b/src/component/search/SearchInput.tsx
@@ -1,8 +1,10 @@
 "use client";
 import { useSearch } from "@/context/SearchContext";
+import { useEffect, useRef } from "react";
 
 export default function SearchInput() {
   const { query, setQuery, setResult } = useSearch();
+  const inputRef = useRef<HTMLInputElement>(null);
 
   // 검색 기능
   const search = async () => {
@@ -19,13 +21,18 @@ export default function SearchInput() {
   };
 
   // 2.2. SearchInput 컴포넌트가 최초 렌더링 될 때, input tag에 포커스 되는 기능
-  const handleInputChange = () => {};
+  useEffect(() => {
+    inputRef.current?.focus();
+  }, []);
 
-  // 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
@@ -1,13 +1,23 @@
 "use client";
 import { ProductItem } from "@/types/Product";
+import { useEffect, useState } from "react";
+import { useRouter } from "next/navigation";
 
 interface Props {
   cart: { [productId: string]: number };
   products: ProductItem[];
-  onRemove: (productId: string) => void; // 삭제 핸들러 추가
+  onRemove: (productId: string) => void;
 }
 
 export default function CartList({ cart, products, onRemove }: Props) {
+  const [showCart, setShowCart] = useState(true);
+  const router = useRouter();
+
+  // 2.1. 장바구니에 아이템이 없을 때, 장바구니 영역이 보이지 않는 기능
+  useEffect(() => {
+    setShowCart(Object.keys(cart).length > 0);
+  }, [cart]);
+
   const cartItems = Object.entries(cart)
     .map(([id, quantity]) => {
       const product = products.find((p) => p.productId === id);
@@ -21,7 +31,19 @@ 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 = () => {
+    const checkoutItems = cartItems.map(item => ({
+      productId: item.productId,
+      title: item.title,
+      lprice: item.lprice,
+      quantity: item.quantity
+    }));
+
+    localStorage.setItem('checkoutItems', JSON.stringify(checkoutItems));
+    router.push('/checkout');
+  };
+
+  if (!showCart) return null;
 
   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
@@ -20,7 +20,14 @@ 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];
+      localStorage.removeItem(productId);
+      return newCart;
+    });
+  };
 
   return (
     <div className="p-10">

diff --git a/src/context/UserContext.tsx b/src/context/UserContext.tsx
@@ -6,8 +6,9 @@ import { createContext, ReactNode, useContext, useState } from "react";
 // User
 interface User {
   name: string;
-  // age: number
-  // 추가하고 싶은 속성들 ...
+  userId: string;
+  age: number;
+  phoneNumber: string;
 }
 // UserContextType
 interface UserContextType {
@@ -22,7 +23,12 @@ 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: "홍길동", 
+    userId: "hong123", 
+    age: 25, 
+    phoneNumber: "010-1234-5678" 
+  });
   return (
     <UserContext.Provider value={{ user, setUser }}>
       {children}