Create Week6 Mission6

jengyoon/Starbuck/Starbuck.xcodeproj/project.pbxproj

@@ -26,6 +26,7 @@
 		C87EE176AD207D08A51D8E1C /* Pretendard-Thin.otf in Resources */ = {isa = PBXBuildFile; fileRef = 6F9415C82BD901C6AA812805 /* Pretendard-Thin.otf */; };
 		D137A0CE8238989E873328EF /* Pretendard-ExtraBold.otf in Resources */ = {isa = PBXBuildFile; fileRef = D2E6CFDB2FE55DB301BB7E93 /* Pretendard-ExtraBold.otf */; };
 		F9B59708E65FFDC479FA292D /* Pretendard-SemiBold.otf in Resources */ = {isa = PBXBuildFile; fileRef = 1C05EE3A01621AA71D5A3474 /* Pretendard-SemiBold.otf */; };
+		FF5FBBBF2DCCA35000646675 /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = FF5FBBBE2DCCA35000646675 /* AppDelegate.swift */; };
 /* End PBXBuildFile section */
 
 /* Begin PBXContainerItemProxy section */
@@ -85,9 +86,11 @@
 		F8D54BB8F383F5345CEFC4FB /* Pretendard-Bold.otf */ = {isa = PBXFileReference; lastKnownFileType = file; path = "Pretendard-Bold.otf"; sourceTree = "<group>"; };
 		F971E5B6815CB1BE429AAFDA /* CustomColor.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = CustomColor.xcassets; sourceTree = "<group>"; };
 		FB5860E6E14B3D180E9A7ABF /* Preview Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = "Preview Assets.xcassets"; sourceTree = "<group>"; };
+		FF5FBBBE2DCCA35000646675 /* AppDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
 /* End PBXFileReference section */
 
 /* Begin PBXFileSystemSynchronizedRootGroup section */
+		FF5FBBBB2DCC697500646675 /* Utillity */ = {isa = PBXFileSystemSynchronizedRootGroup; explicitFileTypes = {}; explicitFolders = (); path = Utillity; sourceTree = "<group>"; };
 		FF6F74DB2D9DAC70003079EE /* Home */ = {isa = PBXFileSystemSynchronizedRootGroup; explicitFileTypes = {}; explicitFolders = (); path = Home; sourceTree = "<group>"; };
 		FF6F75002D9E551F003079EE /* Home */ = {isa = PBXFileSystemSynchronizedRootGroup; explicitFileTypes = {}; explicitFolders = (); path = Home; sourceTree = "<group>"; };
 		FF6F75012D9E5529003079EE /* Login */ = {isa = PBXFileSystemSynchronizedRootGroup; explicitFileTypes = {}; explicitFolders = (); path = Login; sourceTree = "<group>"; };
@@ -159,6 +162,7 @@
 		3A2543C67DA0A3DAC99340AA /* Sources */ = {
 			isa = PBXGroup;
 			children = (
+				FF5FBBBB2DCC697500646675 /* Utillity */,
 				FF89C1842DA78559002BEBA9 /* Navigation */,
 				FF96846D2D932655009914B3 /* Components */,
 				BB0F89AD98F7C1411A6B3723 /* Extentions */,
@@ -167,6 +171,7 @@
 				D63F2DD2A4425E7FF0092A12 /* ViewModels */,
 				3CFD97B39B9B1F9402805C71 /* Views */,
 				CF9B6D9BD6286FD79B02F2D7 /* StarbuckApp.swift */,
+				FF5FBBBE2DCCA35000646675 /* AppDelegate.swift */,
 			);
 			path = Sources;
 			sourceTree = "<group>";
@@ -328,6 +333,7 @@
 			dependencies = (
 			);
 			fileSystemSynchronizedGroups = (
+				FF5FBBBB2DCC697500646675 /* Utillity */,
 				FF6F74DB2D9DAC70003079EE /* Home */,
 				FF6F75002D9E551F003079EE /* Home */,
 				FF6F75012D9E5529003079EE /* Login */,
@@ -448,6 +454,7 @@
 				9F4761109412ED75AEFC6F93 /* ColorExtension.swift in Sources */,
 				7840DC737DE4A9321BFA6B04 /* FontManager.swift in Sources */,
 				B2EECE92459A9FE846F262F6 /* StarbuckApp.swift in Sources */,
+				FF5FBBBF2DCCA35000646675 /* AppDelegate.swift in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};

jengyoon/Starbuck/Starbuck/Sources/AppDelegate.swift

@@ -0,0 +1,32 @@
+//
+//  AppDelegate.swift
+//  Starbuck
+//
+//  Created by 송승윤 on 5/8/25.
+//
+
+import UIKit
+
+final class AppDelegate: NSObject, UIApplicationDelegate {
+    func application(_ app: UIApplication, open url: URL,
+                     options: [UIApplication.OpenURLOptionsKey : Any] = [:]) -> Bool {
+        if url.scheme == "myapp", url.host == "oauth" {
+            if let code = URLComponents(string: url.absoluteString)?
+                .queryItems?.first(where: { $0.name == "code" })?.value {
+
+                // 인가 코드 Notification으로 전달
+                NotificationCenter.default.post(
+                    name: .didReceiveKakaoCode,
+                    object: nil,
+                    userInfo: ["code": code]
+                )
+            }
+            return true
+        }
+        return false
+    }
+}
+
+extension Notification.Name {
+    static let didReceiveKakaoCode = Notification.Name("didReceieveKakaoCode")
+}

jengyoon/Starbuck/Starbuck/Sources/Model/Login/KakaoToken.swift

@@ -0,0 +1,24 @@
+//
+//  KakaoToken.swift
+//  Starbuck
+//
+//  Created by 송승윤 on 5/8/25.
+//
+
+import Foundation
+
+struct KakaoToken: Decodable {
+    let access_token: String
+}
+
+struct KakaoUser: Decodable {
+    let kakao_account: KakaoAccount
+}
+
+struct KakaoAccount: Decodable {
+    let profile: KakaoProfile
+}
+
+struct KakaoProfile: Decodable {
+    let nickname: String
+}

jengyoon/Starbuck/Starbuck/Sources/StarbuckApp.swift

@@ -2,6 +2,8 @@ import SwiftUI
 
 @main
 struct StarbuckApp: App {
+    @UIApplicationDelegateAdaptor(AppDelegate.self) var appDelegate
+
     var body: some Scene {
         WindowGroup {
             AppRootView()

jengyoon/Starbuck/Starbuck/Sources/Utillity/KeychainWrapper.swift

@@ -0,0 +1,66 @@
+//
+//  KeychainWrapper.swift
+//  Starbuck
+//
+//  Created by 송승윤 on 5/8/25.
+//
+
+import Foundation
+import Security
+
+/// Keychain에 문자열 값을 저장, 불러오기, 삭제하는 유틸리티
+enum KeychainKey: String {
+    case email
+    case password
+    case nickname
+}
+
+class KeychainWrapper {
+
+    /// Keychain에 문자열 저장하기
+    @discardableResult
+    static func save(_ value: String, for key: KeychainKey) -> Bool {
+        guard let data = value.data(using: .utf8) else { return false }
+        let query: [String: Any] = [
+            kSecClass as String: kSecClassGenericPassword,
+            kSecAttrAccount as String: key.rawValue,
+            kSecValueData as String: data
+        ]
+
+        // 기존 항목 삭제 후 새로 저장 (중복 방지)
+        SecItemDelete(query as CFDictionary)
+        return SecItemAdd(query as CFDictionary, nil) == errSecSuccess
+    }
+
+    /// Keychain에서 문자열 불러오기
+    static func load(for key: KeychainKey) -> String? {
+        let query: [String: Any] = [
+            kSecClass as String: kSecClassGenericPassword,
+            kSecAttrAccount as String: key.rawValue,
+            kSecReturnData as String: true,
+            kSecMatchLimit as String: kSecMatchLimitOne
+        ]
+
+        var dataTypeRef: AnyObject?
+        let status = SecItemCopyMatching(query as NSDictionary, &dataTypeRef)
+
+        // 값이 존재하면 문자열로 변환하여 반환
+        if status == errSecSuccess,
+           let data = dataTypeRef as? Data,
+           let result = String(data: data, encoding: .utf8) {
+            return result
+        }
+
+        return nil
+    }
+
+    /// Keychain에서 항목 삭제
+    @discardableResult
+    static func delete(for key: KeychainKey) -> Bool {
+        let query: [String: Any] = [
+            kSecClass as String: kSecClassGenericPassword,
+            kSecAttrAccount as String: key.rawValue
+        ]
+        return SecItemDelete(query as CFDictionary) == errSecSuccess
+    }
+}

jengyoon/Starbuck/Starbuck/Sources/ViewModels/Home/HomeViewModel.swift

@@ -9,12 +9,11 @@ import Foundation
 import SwiftUI
 
 class HomeViewModel: ObservableObject {
-    /// 회원가입시 저장된 닉네임 불러오기
-    @AppStorage("userNickname") private var nickname: String = ""
-
+
     /// 뷰에서 접근하는 닉네임
     var displayName: String {
-        nickname.isEmpty ? "(설정 닉네임)" : nickname
+        let nickname = KeychainWrapper.load(for: .nickname) ?? ""
+        return nickname.isEmpty ? "(설정 닉네임)" : nickname
     }
 
     /// 추천 메뉴 더미 데이터

jengyoon/Starbuck/Starbuck/Sources/ViewModels/Login/KakaoLoginViewModel.swift

@@ -0,0 +1,82 @@
+//
+//  KakaoLoginViewModel.swift
+//  Starbuck
+//
+//  Created by 송승윤 on 5/8/25.
+//
+
+import Foundation
+import UIKit
+import Combine
+
+class KakaoLoginViewModel: ObservableObject {
+    var loginViewModel: LoginViewModel? // Login 상태를 갱신하기 위한 참조
+    private var cancellables = Set<AnyCancellable>()
+
+    // 초기화: 카카오 로그인 과정에서 받은 authorization code를 처리하기 위한 NotificationCenter 구독 설정
+    init() {
+        NotificationCenter.default.publisher(for: .didReceiveKakaoCode)
+            .compactMap { $0.userInfo?["code"] as? String }
+            .sink { [weak self] code in
+                self?.requestToken(with: code) // 받은 코드로 토큰 요청 시작
+            }
+            .store(in: &cancellables)
+    }
+
+    // 카카오 로그인 페이지로 이동하는 메서드
+    func loginWithKakao() {
+        let clientID = ""
+        let redirectURI = "https://songtarbuck.com/oauth"
+        let urlStr = "https://kauth.kakao.com/oauth/authorize?response_type=code&client_id=\(clientID)&redirect_uri=\(redirectURI)"
+
+        // URL이 유효하면 카카오 로그인 페이지를 열어 인증 진행
+        if let url = URL(string: urlStr) {
+            UIApplication.shared.open(url)
+        }
+    }
+
+    // authorization code를 이용해 asccess token을 요청
+    private func requestToken(with code: String) {
+        let url = URL(string: "")!
+        var request = URLRequest(url: url)
+        request.httpMethod = "POST"
+        request.setValue("application/x-www-form-urlencoded", forHTTPHeaderField: "Content-Type")
+
+        // 요청 파라미터 설정
+        let params = [
+            "grant_type": "authorization_code",
+            "client_id": "",
+            "redirect_uri": "https://songtarbuck.com/oauth",
+            "code": code
+        ]
+        request.httpBody = params.map { "\($0.key)=\($0.value)" }
+            .joined(separator: "&")
+            .data(using: .utf8)
+
+        // 토큰 요청을 비동기로 수행
+        URLSession.shared.dataTask(with: request) { data, _, _ in
+            guard let data = data,
+                  let token = try? JSONDecoder().decode(KakaoToken.self, from: data) else { return }
+            // 토큰을 성공적으로 받으면 사용자 정보 요청 시작
+            self.requestUserInfo(with: token.access_token)
+        }.resume()
+    }
+
+    private func requestUserInfo(with accessToken: String) {
+        var request = URLRequest(url: URL(string: "https://kapi.kakao.com/v2/user/me")!)
+        request.httpMethod = "GET"
+        request.setValue("Bearer \(accessToken)", forHTTPHeaderField: "Authorization")
+
+        // 사용자 정보 요청을 비동기로 수행
+        URLSession.shared.dataTask(with: request) { data, _, _ in
+            guard let data = data,
+                  let user = try? JSONDecoder().decode(KakaoUser.self, from: data) else { return }
+
+            // 메인 스레드에서 로그인 상태를 갱신
+            DispatchQueue.main.async {
+                let nickname = user.kakao_account.profile.nickname
+                self.loginViewModel?.loginWithKakao(nickname: nickname)
+            }
+        }.resume()
+    }
+}

jengyoon/Starbuck/Starbuck/Sources/ViewModels/Login/LoginViewModel.swift

@@ -16,16 +16,19 @@ class LoginViewModel: ObservableObject {
     @Published var inputEmail: String = ""
     @Published var inputPassword: String = ""
 
-    // MARK: - AppStorage에 저장된 회원 정보 불러오기
-    @AppStorage("userEmail") private var savedEmail: String = ""
-    @AppStorage("userPassword") private var savedPassword: String = ""
-
     // MARK: - 로그인 상태
     @Published var isLogin: Bool = false
     @Published var loginError: String? = nil
 
     // MARK: - 로그인 로직
     func login() {
+        guard let savedEmail = KeychainWrapper.load(for: .email),
+              let savedPassword = KeychainWrapper.load(for: .password) else {
+            loginError = "저장된 사용자 정보가 없습니다."
+            isLogin = false
+            return
+        }
+
         if (inputEmail == savedEmail && inputPassword == savedPassword) {
             isLogin = true
             loginError = nil
@@ -38,4 +41,12 @@ class LoginViewModel: ObservableObject {
     var buttonValid: Bool {
         !inputEmail.isEmpty && !inputPassword.isEmpty
     }
+
+    /// 카카오 로그인 성공 시 호출되는 메서드
+    /// 토큰 요청 및.사용자 정보 요청은 kakaoLovinViewModel에서 처리
+    func loginWithKakao(nickname: String) {
+        isLogin = true
+        loginError = nil
+        KeychainWrapper.save(nickname, for: .nickname)
+    }
 }

jengyoon/Starbuck/Starbuck/Sources/ViewModels/Login/SignupViewModel.swift

@@ -5,31 +5,47 @@
 //  Created by 송승윤 on 3/27/25.
 
 /// 회원가입 화면에서 사용하는 ViewModel
-/// 사용자 입력값을 AppStorage(UserDefaults)와 연동하여 저장
+/// 사용자 입력값을 Keychain에 저장
 import Foundation
 import SwiftUI
 
 class SignupViewModel: ObservableObject {
-    @AppStorage("userEmail") private var userEmail: String = ""
-    @AppStorage("userPassword") private var userPassword: String = ""
-    @AppStorage("userNickname") private var userNickname: String = ""
 
+    // 사용자 입력값
     @Published var email = ""
     @Published var password = ""
     @Published var nickname = ""
+
+    // 회원가입 완료 여부
     @Published var isSignupComplete = false
 
+    /// 입력 필드 검증 로직
     var isFormValid: Bool {
         !email.isEmpty && !password.isEmpty && !nickname.isEmpty
     }
 
+    /// 회원가입 처리 함수
+    /// 입력값을 Keychain에 저장한다.
     func signup() {
-        // AppStorage에 사용자 정보 저장
-        userEmail = email
-        userPassword = password
-        userNickname = nickname
+        KeychainWrapper.save(email, for: .email)
+        KeychainWrapper.save(password, for: .password)
+        KeychainWrapper.save(nickname, for: .nickname)
 
         // 회원가입 완료 처리
         isSignupComplete = true
     }
-} 
+
+    /// Keycahin에서 기존 사용자 데이터를 불러와 필드에 반영하기
+    func loadSavedUserData() {
+        email = KeychainWrapper.load(for: .email) ?? ""
+        password = KeychainWrapper.load(for: .password) ?? ""
+        nickname = KeychainWrapper.load(for: .nickname) ?? ""
+    }
+
+    /// Keychain에 저장된 사용자 정보 삭제
+    func clearUserData() {
+        KeychainWrapper.delete(for: .email)
+        KeychainWrapper.delete(for: .password)
+        KeychainWrapper.delete(for: .nickname)
+    }
+}

jengyoon/Starbuck/Starbuck/Sources/Views/Home/HomeView.swift

@@ -9,7 +9,6 @@ import SwiftUI
 
 struct HomeView: View {
     /// 관찰 가능한 객체를 HomeView에서 직접 생성후 소유한다.
-    /// AppStorage에 저장된 닉네임과 더미데이터 랜더링
     @StateObject private var viewModel = HomeViewModel()
 
     @State private var showAdvertisement = false