feat(auth): Apple 로그인 구현 (#57)

Projects/App/DoriAppDebug.entitlements

@@ -4,5 +4,9 @@
 <dict>
 	<key>aps-environment</key>
 	<string>development</string>
+	<key>com.apple.developer.applesignin</key>
+	<array>
+		<string>Default</string>
+	</array>
 </dict>
 </plist>

Projects/App/Resources/DoriApp.entitlements

@@ -4,5 +4,9 @@
 <dict>
 	<key>aps-environment</key>
 	<string>development</string>
+	<key>com.apple.developer.applesignin</key>
+	<array>
+		<string>Default</string>
+	</array>
 </dict>
 </plist>

Projects/App/Sources/DoriApp.swift

@@ -70,6 +70,10 @@ struct DoriApp: App {
         networkService: networkService,
         tokenStore: tokenStore
       )
+      $0.appleServerLoginClient = .live(
+        networkService: networkService,
+        tokenStore: tokenStore
+      )
 
       $0.addDoriAPIClient = .live(networkService: networkService)
       $0.calendarClient = .live(networkService: networkService)

Projects/Feature/Onboarding/Sources/AppleServerLoginClient.swift

@@ -0,0 +1,92 @@
+//
+//  AppleServerLoginClient.swift
+//  Dori-iOS
+//
+//  Created by 강동영 on 6/25/26.
+//
+
+import Foundation
+import ComposableArchitecture
+import DoriNetwork
+
+public struct AppleServerLoginClient: Sendable {
+  public var login: @Sendable (_ identityToken: String, _ user: AppleLoginUserInfo?) async throws -> SocialLoginResponse
+
+  public init(login: @escaping @Sendable (_ identityToken: String, _ user: AppleLoginUserInfo?) async throws -> SocialLoginResponse) {
+    self.login = login
+  }
+}
+
+private enum AppleServerLoginClientError: LocalizedError {
+  case unconfigured
+  case invalidResponse
+  case backendError(String)
+
+  var errorDescription: String? {
+    switch self {
+    case .unconfigured:
+      return "AppleServerLoginClient가 구성되지 않았습니다."
+    case .invalidResponse:
+      return "서버 응답이 올바르지 않습니다."
+    case .backendError(let message):
+      return message
+    }
+  }
+}
+
+extension AppleServerLoginClient: DependencyKey {
+  public static let liveValue = Self(
+    login: { _, _ in
+      throw AppleServerLoginClientError.unconfigured
+    }
+  )
+
+  public static let testValue = Self(
+    login: { _, _ in
+      SocialLoginResponse(
+        accessToken: "test-jwt",
+        refreshToken: "test-refresh",
+        id: 1
+      )
+    }
+  )
+}
+
+public extension DependencyValues {
+  var appleServerLoginClient: AppleServerLoginClient {
+    get { self[AppleServerLoginClient.self] }
+    set { self[AppleServerLoginClient.self] = newValue }
+  }
+}
+
+public extension AppleServerLoginClient {
+  static func live(
+    networkService: any NetworkService,
+    tokenStore: any AuthTokenStoring
+  ) -> Self {
+    Self(
+      login: { identityToken, user in
+        let endpoint = AppleLoginEndpoint(identityToken: identityToken, user: user)
+        let response = try await networkService.request(
+          endpoint,
+          responseType: SuccessResponse<SocialLoginResponse>.self
+        )
+
+        if let apiError = response.error {
+          throw AppleServerLoginClientError.backendError(
+            apiError.message ?? apiError.code
+          )
+        }
+
+        guard response.success, let data = response.data else {
+          throw AppleServerLoginClientError.invalidResponse
+        }
+
+        print("token save accessToken: \(data.accessToken)")
+        print("token save refreshToken: \(data.refreshToken)")
+        try tokenStore.save(accessToken: data.accessToken, refreshToken: data.refreshToken)
+        return data
+      }
+    )
+  }
+}

Projects/Feature/Onboarding/Sources/IntroFeature.swift

@@ -7,6 +7,7 @@
 
 import Foundation
 import PlatformKakaoAuth
+import PlatformAppleAuth
 import DoriNetwork
 import ComposableArchitecture
 
@@ -26,6 +27,8 @@ public struct IntroFeature : Sendable {
   public enum Action: Equatable, Sendable {
     case kakaoLoginButtonTapped
     case kakaoLoginResponse(Result<SocialLoginResponse, KakaoLoginFailure>)
+    case appleLoginButtonTapped
+    case appleLoginResponse(Result<SocialLoginResponse, AppleLoginFailure>)
     case errorAlertDismissed
     case delegate(Delegate)
 
@@ -36,6 +39,8 @@ public struct IntroFeature : Sendable {
 
   @Dependency(KakaoAuthClient.self) var kakaoAuthClient
   @Dependency(KakaoServerLoginClient.self) var kakaoServerLoginClient
+  @Dependency(AppleAuthClient.self) var appleAuthClient
+  @Dependency(AppleServerLoginClient.self) var appleServerLoginClient
 
   public func reduce(into state: inout State, action: Action) -> Effect<Action> {
     switch action {
@@ -64,6 +69,35 @@ public struct IntroFeature : Sendable {
       state.errorMessage = error.message
       return .none
 
+    case .appleLoginButtonTapped:
+      guard !state.isLoading else { return .none }
+      state.isLoading = true
+      state.errorMessage = nil
+      return .run { send in
+        do {
+          let credential = try await appleAuthClient.login()
+          let user = AppleLoginUserInfo(
+            firstName: credential.firstName,
+            lastName: credential.lastName,
+            email: credential.email
+          )
+          let loginResponse = try await appleServerLoginClient.login(credential.identityToken, user)
+          await send(.appleLoginResponse(.success(loginResponse)))
+        } catch {
+          await send(.appleLoginResponse(.failure(AppleLoginFailure(error))))
+        }
+      }
+
+    case .appleLoginResponse(.success):
+      state.isLoading = false
+      state.loginSucceeded = true
+      return .send(.delegate(.loginSucceeded))
+
+    case let .appleLoginResponse(.failure(error)):
+      state.isLoading = false
+      state.errorMessage = error.message
+      return .none
+
     case .errorAlertDismissed:
       state.errorMessage = nil
       return .none
@@ -82,3 +116,12 @@ public struct KakaoLoginFailure: Error, Equatable, Sendable {
     self.message = description.isEmpty ? "로그인 중 오류가 발생했습니다." : description
   }
 }
+
+public struct AppleLoginFailure: Error, Equatable, Sendable {
+  public let message: String
+
+  public init(_ error: Error) {
+    let description = (error as NSError).localizedDescription.trimmingCharacters(in: .whitespacesAndNewlines)
+    self.message = description.isEmpty ? "로그인 중 오류가 발생했습니다." : description
+  }
+}

Projects/Feature/Onboarding/Sources/IntroView.swift

@@ -74,9 +74,10 @@ public struct IntroView: View {
         Spacer()
 
         kakaoLoginButton
+        appleLoginButton
       }
       .alert(
-        "카카오 로그인 실패",
+        "로그인 실패",
         isPresented: Binding(
           get: { store.errorMessage != nil },
           set: { isPresented in
@@ -166,7 +167,45 @@ public struct IntroView: View {
         }
     }
     .disabled(store.isLoading)
-    .padding()
+    .padding(.horizontal, 16)
+    .padding(.top, 16)
+    .padding(.bottom, 8)
+  }
+
+  var appleLoginButton: some View {
+    Button {
+      store.send(.appleLoginButtonTapped)
+    } label: {
+      Text("Apple로 시작하기")
+        .pretendard(.semiBold(.sb15))
+        .foregroundStyle(.bgPrimary)
+        .frame(maxWidth: .infinity)
+        .frame(height: 46)
+        .background(
+          RoundedRectangle(cornerRadius: 10)
+            .foregroundStyle(.textPrimary)
+        )
+        .overlay() {
+          HStack {
+            Image(systemName: "apple.logo")
+              .resizable()
+              .scaledToFit()
+              .foregroundStyle(.bgPrimary)
+              .frame(
+                width: 24,
+                height: 24
+              )
+              .padding(.leading, 16)
+
+            Spacer()
+          }
+
+        }
+    }
+    .disabled(store.isLoading)
+    .padding(.horizontal, 16)
+    .padding(.top, 8)
+    .padding(.bottom, 32)
   }
 }