lightfinder nearby badge icon

LightlessSync/UI/TopTabMenu.cs

@@ -170,8 +170,22 @@ public class TopTabMenu
                 {
                     Selune.RegisterHighlight(ImGui.GetItemRectMin(), ImGui.GetItemRectMax(), SeluneHighlightMode.Both, true, buttonBorderThickness, exactSize: true, clipToElement: true, roundingOverride: buttonRounding);
                 }
+            }
 
-                
+            var nearbyCount = GetNearbySyncshellCount();
+            if (nearbyCount > 0)
+            {
+                var buttonMax = ImGui.GetItemRectMax();
+                var badgeRadius = 8f * ImGuiHelpers.GlobalScale;
+                var badgeCenter = new Vector2(buttonMax.X - badgeRadius * 0.5f, buttonMax.Y - buttonSize.Y + badgeRadius * 0.5f);
+                var badgeText = nearbyCount > 99 ? "99+" : nearbyCount.ToString();
+                var textSize = ImGui.CalcTextSize(badgeText);
+
+                drawList.AddCircleFilled(badgeCenter, badgeRadius + 1f, ImGui.GetColorU32(new Vector4(0, 0, 0, 0.6f)));
+                drawList.AddCircleFilled(badgeCenter, badgeRadius, ImGui.GetColorU32(UIColors.Get("LightlessPurple")));
+
+                var textPos = new Vector2(badgeCenter.X - textSize.X * 0.5f, badgeCenter.Y - textSize.Y * 0.5f);
+                drawList.AddText(textPos, ImGui.GetColorU32(new Vector4(1, 1, 1, 1)), badgeText);
             }
             UiSharedService.AttachToolTip(GetLightfinderTooltip());
 
@@ -805,6 +819,31 @@ public class TopTabMenu
         return nearbyCount > 0 ? $"Lightfinder ({nearbyCount} nearby)" : "Open Lightfinder";
     }
 
+    private int GetNearbySyncshellCount()
+    {
+        if (!_lightFinderService.IsBroadcasting)
+            return 0;
+
+        string? myHashedCid = null;
+        try
+        {
+            var cid = _dalamudUtilService.GetCID();
+            myHashedCid = cid.ToString().GetHash256();
+        }
+        catch (Exception)
+        {
+        }
+
+        return _lightFinderScannerService
+            .GetActiveSyncshellBroadcasts()
+            .Where(b =>
+                !string.IsNullOrEmpty(b.GID) &&
+                !string.Equals(b.HashedCID, myHashedCid, StringComparison.Ordinal))
+            .Select(b => b.GID!)
+            .Distinct(StringComparer.Ordinal)
+            .Count();
+    }
+
     private void DrawUserConfig(float availableWidth, float spacingX)
     {
         var buttonX = (availableWidth - spacingX) / 2f;