UI HUGE UPDATE

Assets/scripts/friendSystem/friendSystem.cs

@@ -64,6 +64,7 @@ public class friendSystem : MonoBehaviour
 
     [Header("text")]
     public Text defaultText;
+    public Text onlineFriendsCountText;
 
     [Header("sync")]
     [SerializeField] private float steamFriendResyncIntervalSeconds = 8f;
@@ -88,8 +89,10 @@ public class friendSystem : MonoBehaviour
     private bool _dropdownInitialized;
     private bool _isRefreshing;
     private bool _lastRefreshFailed;
+    private bool _hasResolvedFriendCounts;
     private Coroutine _resyncCoroutine;
     private bool _languageSubscribed;
+    private bool _chatStateSubscribed;
     private static List<string> _startupSteamFriendIds = new List<string>();
 
     [RuntimeInitializeOnLoadMethod(RuntimeInitializeLoadType.BeforeSceneLoad)]
@@ -102,9 +105,12 @@ public class friendSystem : MonoBehaviour
     {
         LocalizationService.EnsureInitialized();
         ClearDisplayedFriends();
+        _hasResolvedFriendCounts = false;
         SetDefaultText(DefaultStatusLoading);
+        UpdateOnlineFriendsCountText();
         InitializeDropdown();
         SubscribeLanguageChanged();
+        SubscribeChatStateChanged();
 
         if (ArenaRoomService.Instance != null)
         {
@@ -122,6 +128,7 @@ public class friendSystem : MonoBehaviour
     private void OnDisable()
     {
         UnsubscribeLanguageChanged();
+        UnsubscribeChatStateChanged();
         if (ArenaRoomService.Instance != null)
         {
             ArenaRoomService.Instance.OnFriendsListChanged -= HandleFriendsListChanged;
@@ -199,6 +206,7 @@ public class friendSystem : MonoBehaviour
                 && friendsTask.Result != null
                 && friendsTask.Result.success)
             {
+                _hasResolvedFriendCounts = true;
                 ReplaceGameFriends(friendsTask.Result.friends);
             }
             else
@@ -266,6 +274,7 @@ public class friendSystem : MonoBehaviour
     private void HandleFriendsListChanged(IReadOnlyList<SocialFriendEntry> friends)
     {
         _lastRefreshFailed = false;
+        _hasResolvedFriendCounts = true;
         RefreshSteamFriendCache();
         ReplaceGameFriends(friends);
         Render();
@@ -428,6 +437,7 @@ public class friendSystem : MonoBehaviour
         if (friendsDisplayContent == null || friendCardPrefab == null)
         {
             SetDefaultText(DefaultStatusServiceUnavailable);
+            UpdateOnlineFriendsCountText();
             return;
         }
 
@@ -467,6 +477,7 @@ public class friendSystem : MonoBehaviour
         }
 
         UpdateDefaultTextState(target.Count);
+        UpdateOnlineFriendsCountText();
     }
 
     private void UpdateDefaultTextState(int visibleCount)
@@ -496,6 +507,32 @@ public class friendSystem : MonoBehaviour
         defaultText.text = message ?? string.Empty;
     }
 
+    private void UpdateOnlineFriendsCountText()
+    {
+        if (onlineFriendsCountText == null)
+        {
+            return;
+        }
+
+        if (!_hasResolvedFriendCounts)
+        {
+            onlineFriendsCountText.text = "-/-";
+            return;
+        }
+
+        int totalCount = _mergedFriends.Count;
+        int onlineCount = 0;
+        foreach (FriendCardViewData friend in _mergedFriends.Values)
+        {
+            if (friend != null && friend.IsOnline)
+            {
+                onlineCount++;
+            }
+        }
+
+        onlineFriendsCountText.text = $"{onlineCount}/{totalCount}";
+    }
+
     private IEnumerable<FriendCardViewData> ApplyFilter(IEnumerable<FriendCardViewData> source)
     {
         FriendFilterType filter = GetSelectedFilter();
@@ -571,6 +608,38 @@ public class friendSystem : MonoBehaviour
         globalChatSystem.OpenPrivateConversation(steamId);
     }
 
+    private void SubscribeChatStateChanged()
+    {
+        if (_chatStateSubscribed)
+        {
+            return;
+        }
+
+        globalChatSystem.ActivePrivateConversationChanged += HandleActivePrivateConversationChanged;
+        _chatStateSubscribed = true;
+    }
+
+    private void UnsubscribeChatStateChanged()
+    {
+        if (!_chatStateSubscribed)
+        {
+            return;
+        }
+
+        globalChatSystem.ActivePrivateConversationChanged -= HandleActivePrivateConversationChanged;
+        _chatStateSubscribed = false;
+    }
+
+    private void HandleActivePrivateConversationChanged(string _)
+    {
+        if (!isActiveAndEnabled)
+        {
+            return;
+        }
+
+        Render();
+    }
+
     private void SubscribeLanguageChanged()
     {
         if (_languageSubscribed)