[Work 49] 로그인/로그아웃 기능을 구현했습니다.

WhereAreYou/WhereAreYou.xcodeproj/project.pbxproj

@@ -178,6 +178,7 @@
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
 				ASSETCATALOG_COMPILER_GLOBAL_ACCENT_COLOR_NAME = AccentColor;
+				CODE_SIGN_ENTITLEMENTS = WhereAreYou/WhereAreYou.entitlements;
 				CODE_SIGN_STYLE = Automatic;
 				CURRENT_PROJECT_VERSION = 1;
 				DEVELOPMENT_TEAM = 2ZF894QLGK;
@@ -218,6 +219,7 @@
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
 				ASSETCATALOG_COMPILER_GLOBAL_ACCENT_COLOR_NAME = AccentColor;
+				CODE_SIGN_ENTITLEMENTS = WhereAreYou/WhereAreYou.entitlements;
 				CODE_SIGN_STYLE = Automatic;
 				CURRENT_PROJECT_VERSION = 1;
 				DEVELOPMENT_TEAM = 2ZF894QLGK;

WhereAreYou/WhereAreYou/Core/AppDelegate.swift

@@ -26,16 +26,20 @@ class AppDelegate: UIResponder, UIApplicationDelegate {
         return true
     }
 
+    private static var emulatorHost: String {
+        ProcessInfo.processInfo.environment["FIREBASE_EMULATOR_HOST"] ?? "localhost"
+    }
+
     private func configureFirebaseEmulators() {
         #if DEBUG
-        Auth.auth().useEmulator(withHost: "localhost", port: 9099)
+        let host = Self.emulatorHost
         let firestoreSettings = Firestore.firestore().settings
-        firestoreSettings.host = "localhost:8080"
+        firestoreSettings.host = "\(host):8080"
         firestoreSettings.isSSLEnabled = false
         firestoreSettings.cacheSettings = MemoryCacheSettings()
         Firestore.firestore().settings = firestoreSettings
-        Database.database().useEmulator(withHost: "localhost", port: 9000)
-        Storage.storage().useEmulator(withHost: "localhost", port: 9199)
+        Database.database().useEmulator(withHost: host, port: 9000)
+        Storage.storage().useEmulator(withHost: host, port: 9199)
         #endif
     }
 

WhereAreYou/WhereAreYou/Core/Coordinator/Implementation/AppCoordinator.swift

@@ -11,7 +11,7 @@ import UIKit
 final class AppCoordinator: Coordinator {
 
     private let window: UIWindow
-    private let screenFactory: AppScreenFactory
+    private let screenFactory: ScreenFactory
     private var tabBarCoordinator: TabBarCoordinator?
 
     init(window: UIWindow, screenFactory: ScreenFactory = .shared) {
@@ -20,26 +20,97 @@ final class AppCoordinator: Coordinator {
     }
 
     func start() {
-        window.rootViewController = makeLoginViewController()
+        let authRepository: AuthRepository = screenFactory.container.resolve()
+        if authRepository.currentUserID != nil {
+            showHome()
+            validateUser()
+        } else {
+            showLogin()
+        }
         window.makeKeyAndVisible()
     }
 
-    private func makeLoginViewController() -> UIViewController {
-        let loginViewController = screenFactory.makeLoginViewController()
-        loginViewController.onAppleLoginTap = { [weak self] in
-            self?.switchToHome()
+    // MARK: - 자동 로그인 검증
+
+    private func validateUser() {
+        let authRepository: AuthRepository = screenFactory.container.resolve()
+        let userRepository: UserRepository = screenFactory.container.resolve()
+        guard let userID = authRepository.currentUserID else {
+            switchToLogin()
+            return
         }
-        return loginViewController
+        Task { @MainActor in
+            do {
+                _ = try await userRepository.fetchUser(userID: userID)
+            } catch AppError.network {
+                self.showNetworkErrorAlert()
+            } catch {
+                self.switchToLogin()
+            }
+        }
+    }
+
+    private func showNetworkErrorAlert() {
+        let alert = UIAlertController(
+            title: "연결 오류",
+            message: "네트워크 연결을 확인 후 다시 시도해 주세요.",
+            preferredStyle: .alert
+        )
+        alert.addAction(UIAlertAction(title: "재시도", style: .default) { [weak self] _ in
+            self?.validateUser()
+        })
+        alert.addAction(UIAlertAction(title: "로그아웃", style: .destructive) { [weak self] _ in
+            self?.switchToLogin()
+        })
+        window.rootViewController?.present(alert, animated: true)
+    }
+
+    // MARK: - 초기 화면 설정
+
+    private func showLogin() {
+        window.rootViewController = makeLoginViewController()
+    }
+
+    private func showHome() {
+        let coordinator = TabBarCoordinator()
+        tabBarCoordinator = coordinator
+        coordinator.onSignOut = { [weak self] in
+            self?.switchToLogin()
+        }
+        coordinator.start()
+        window.rootViewController = coordinator.tabBarController
     }
 
+    // MARK: - 화면 전환
+
     private func switchToHome() {
         let coordinator = TabBarCoordinator()
         tabBarCoordinator = coordinator
+        coordinator.onSignOut = { [weak self] in
+            self?.switchToLogin()
+        }
         coordinator.start()
 
         UIView.transition(with: window, duration: 0.3, options: .transitionCrossDissolve) {
             self.window.rootViewController = coordinator.tabBarController
         }
     }
 
+    private func switchToLogin() {
+        tabBarCoordinator = nil
+        let loginViewController = makeLoginViewController()
+
+        UIView.transition(with: window, duration: 0.3, options: .transitionCrossDissolve) {
+            self.window.rootViewController = loginViewController
+        }
+    }
+
+    private func makeLoginViewController() -> LoginViewController {
+        let loginViewController = screenFactory.makeLoginViewController()
+        loginViewController.onLoginSuccess = { [weak self] _ in
+            self?.switchToHome()
+        }
+        return loginViewController
+    }
+
 }

WhereAreYou/WhereAreYou/Core/Coordinator/Implementation/MyPageCoordinator.swift

@@ -11,6 +11,7 @@ final class MyPageCoordinator: NavigationCoordinator, MyPageCoordinating {
 
     let navigationController: UINavigationController
     private let screenFactory: MyPageScreenFactory
+    var onSignOut: (() -> Void)?
 
     init(
         navigationController: UINavigationController,
@@ -55,6 +56,12 @@ final class MyPageCoordinator: NavigationCoordinator, MyPageCoordinating {
         push(screenFactory.makeLocationPermissionViewController())
     }
 
+    // MARK: - Sign Out
+
+    func signOut() {
+        onSignOut?()
+    }
+
     // MARK: - Appointment Notification List
 
     func showAppointmentNotificationList(

WhereAreYou/WhereAreYou/Core/Coordinator/Implementation/TabBarCoordinator.swift

@@ -12,6 +12,7 @@ import UIKit
 final class TabBarCoordinator: Coordinator {
 
     let tabBarController = UITabBarController()
+    var onSignOut: (() -> Void)?
 
     private var homeCoordinator: HomeCoordinator?
     private var appointmentListCoordinator: AppointmentListCoordinator?
@@ -37,8 +38,12 @@ final class TabBarCoordinator: Coordinator {
         )
 
         let myPageNav = UINavigationController()
-        myPageCoordinator = MyPageCoordinator(navigationController: myPageNav)
-        myPageCoordinator?.start()
+        let myPageCoord = MyPageCoordinator(navigationController: myPageNav)
+        myPageCoord.onSignOut = { [weak self] in
+            self?.onSignOut?()
+        }
+        myPageCoordinator = myPageCoord
+        myPageCoord.start()
         myPageNav.tabBarItem = UITabBarItem(
             title: "마이페이지",
             image: UIImage(systemName: "person"),

WhereAreYou/WhereAreYou/Core/Coordinator/Protocol/MyPageCoordinating.swift

@@ -24,5 +24,6 @@ protocol MyPageCoordinating: AnyObject {
         fetchItems: @escaping () -> [AppointmentListItem],
         onToggle: @escaping (String) -> Void
     )
+    func signOut()
 
 }

WhereAreYou/WhereAreYou/Core/DI/Implementation/AppDIContainer+Register.swift

@@ -5,9 +5,23 @@
 //  Created by 김성훈 on 8/26/26.
 //
 
+import UIKit
+
 extension DIContainer {
 
     func registerDependencies() {
+        // 인증
+        register(AuthRepository.self, instance: FirebaseAuthRepository())
+        register(UserRepository.self, instance: FirestoreUserRepository())
+        register(SignInService.self, instance: AppleSignInProvider(
+            windowProvider: {
+                UIApplication.shared.connectedScenes
+                    .compactMap { $0 as? UIWindowScene }
+                    .flatMap { $0.windows }
+                    .first { $0.isKeyWindow }
+            }
+        ))
+
         // 위치
         let coreLocationRepository = CoreLocationRepository()
         register(LocationRepository.self, instance: coreLocationRepository)

WhereAreYou/WhereAreYou/Core/DI/Implementation/ScreenFactory+Login.swift

@@ -8,7 +8,16 @@
 extension ScreenFactory {
 
     func makeLoginViewController() -> LoginViewController {
-        LoginViewController()
+        let signInService: SignInService = container.resolve()
+        let authRepository: AuthRepository = container.resolve()
+        let userRepository: UserRepository = container.resolve()
+        let useCase = SignInUseCase(
+            signInService: signInService,
+            authRepository: authRepository,
+            userRepository: userRepository
+        )
+        let viewModel = LoginViewModel(signInUseCase: useCase)
+        return LoginViewController(viewModel: viewModel)
     }
 
 }

WhereAreYou/WhereAreYou/Core/DI/Implementation/ScreenFactory+MyPage.swift

@@ -11,6 +11,9 @@ extension ScreenFactory {
         let viewModel = MyPageViewModel(
             observeLocationPermissionUseCase: ObserveLocationPermissionUseCase(
                 repository: container.resolve(LocationPermissionRepository.self)
+            ),
+            signOutUseCase: SignOutUseCase(
+                authRepository: container.resolve(AuthRepository.self)
             )
         )
         return MyPageViewController(viewModel: viewModel)