구글 로그인 기능 추가

SodaLive/Sources/User/Login/LoginViewModel.swift

@@ -12,6 +12,7 @@ import AuthenticationServices
 import CryptoKit
 import Security
 import UIKit
+import GoogleSignIn
 
 final class LoginViewModel: NSObject, ObservableObject {
     private let appViewModel = AppViewModel()
@@ -68,6 +69,35 @@ final class LoginViewModel: NSObject, ObservableObject {
         controller.presentationContextProvider = self
         controller.performRequests()
     }
+
+    func loginWithGoogle() {
+        guard let presentingViewController = presentingViewController() else {
+            self.errorMessage = I18n.Login.Google.openFailed
+            self.isShowPopup = true
+            return
+        }
+
+        GIDSignIn.sharedInstance.configuration = GIDConfiguration(clientID: GID_CLIENT_ID, serverClientID: GID_SERVER_CLIENT_ID)
+
+        GIDSignIn.sharedInstance.signIn(withPresenting: presentingViewController) { result, error in
+            DispatchQueue.main.async {
+                if let error = error {
+                    ERROR_LOG(error.localizedDescription)
+                    self.errorMessage = I18n.Login.Google.signInFailed
+                    self.isShowPopup = true
+                    return
+                }
+
+                guard let idToken = result?.user.idToken?.tokenString else {
+                    self.errorMessage = I18n.Login.Google.tokenMissing
+                    self.isShowPopup = true
+                    return
+                }
+
+                self.loginWithGoogle(idToken: idToken)
+            }
+        }
+    }
     
     private func loginWithApple(identityToken: String, nonce: String) {
         let pushToken = UserDefaults.string(forKey: .pushToken)
@@ -95,6 +125,41 @@ final class LoginViewModel: NSObject, ObservableObject {
             }
             .store(in: &subscription)
     }
+
+    private func loginWithGoogle(idToken: String) {
+        let pushToken = UserDefaults.string(forKey: .pushToken)
+        let marketingPid = UserDefaults.string(forKey: .marketingPid)
+        let request = SocialLoginRequest(
+            container: "ios",
+            pushToken: pushToken.isEmpty ? nil : pushToken,
+            marketingPid: marketingPid.isEmpty ? nil : marketingPid,
+            identityToken: nil,
+            nonce: nil
+        )
+
+        isLoading = true
+        repository.loginGoogle(request: request, idToken: idToken)
+            .sink { result in
+                switch result {
+                case .finished:
+                    DEBUG_LOG("finish")
+                case .failure(let error):
+                    self.isLoading = false
+                    ERROR_LOG(error.localizedDescription)
+                }
+            } receiveValue: { response in
+                self.handleLoginResponse(response)
+            }
+            .store(in: &subscription)
+    }
+
+    private func presentingViewController() -> UIViewController? {
+        return UIApplication.shared.connectedScenes
+            .compactMap { $0 as? UIWindowScene }
+            .flatMap { $0.windows }
+            .first { $0.isKeyWindow }?
+            .rootViewController
+    }
     
     private func handleLoginResponse(_ response: Response) {
         self.isLoading = false