Update GoogleSignInManager.cs

Assets/GoogleSigninSDK/GoogleSignInManager.cs

@@ -23,7 +23,7 @@ public class GoogleSignInManager : MonoBehaviour
         {
             WebClientId = GameConstants.Web_ClientID,
             RequestEmail = true,
-            RequestAuthCode = true
+            RequestAuthCode = true,
         };
 
         GoogleSignIn.Configuration = configuration;
@@ -141,28 +141,43 @@ public class GoogleSignInManager : MonoBehaviour
     {
         Debug.Log("Attempting Google Silent Sign-In...");
 
-        GoogleSignIn.DefaultInstance.SignIn().ContinueWith(OnGoogleSignIn);
+        configuration = new GoogleSignInConfiguration
+        {
+            WebClientId = GameConstants.Web_ClientID,
+            RequestEmail = true,
+            RequestAuthCode = true,
+            ForceTokenRefresh =  true
+        };
+        
+        // GoogleSignIn.DefaultInstance.SignIn().ContinueWith(OnGoogleSignIn);
+        
+        GoogleSignIn.DefaultInstance.SignInSilently().ContinueWith(task =>
+        {
+            if (task.IsFaulted || task.IsCanceled)
+            {
+                Debug.LogWarning("Silent Sign-In failed. Showing login buttons.");
+                googleSignInButton.gameObject.SetActive(true);
+                googleSignInButton.interactable = true;
         
-        // GoogleSignIn.DefaultInstance.SignInSilently().ContinueWith(task =>
-        // {
-        //     if (task.IsFaulted || task.IsCanceled)
-        //     {
-        //         Debug.LogWarning("Silent Sign-In failed. Showing login buttons.");
-        //         googleSignInButton.gameObject.SetActive(true);
-        //         googleSignInButton.interactable = true;
-        //
-        //         guestLoginButton.gameObject.SetActive(true);
-        //         guestLoginButton.interactable = true;
-        //         return;
-        //     }
-        //
-        //     GoogleSignInUser user = task.Result;
-        //     string authCode = user.AuthCode;
-        //     SafePlayerPrefs.SetString("GoogleAuthCode", authCode);
-        //     PlayerPrefs.Save();
-        //
-        //     LoginToPlayFab(authCode);
-        // });
+                guestLoginButton.gameObject.SetActive(true);
+                guestLoginButton.interactable = true;
+                return;
+            }
+        
+            string authCode = task.Result.AuthCode;
+
+            if (string.IsNullOrEmpty(authCode))
+            {
+                Debug.LogError("Silent Sign-In succeeded but authCode is NULL!");
+            }
+            else
+            {
+                Debug.Log("[Silent Sign-In] AuthCode: " + authCode);
+                SafePlayerPrefs.SetString("GoogleAuthCode", authCode);
+                PlayerPrefs.Save();
+                LoginToPlayFab(authCode);
+            }
+        });
     }
 
     private void LoginToPlayFab(string authCode)