RT state managment and rectangle support

dotnet/AipsRT/Model/Whiteboard/WhiteboardManager.cs

@@ -0,0 +1,59 @@
+using System.Collections.Concurrent;
+using AipsCore.Application.Abstract;
+
+namespace AipsRT.Model.Whiteboard;
+
+public class WhiteboardManager
+{
+    private readonly IServiceScopeFactory _scopeFactory;
+    private readonly ConcurrentDictionary<Guid, Whiteboard> _whiteboards = new();
+    private readonly ConcurrentDictionary<Guid, Guid> _userInWhiteboards = new();
+    
+    public WhiteboardManager(IServiceScopeFactory scopeFactory)
+    {
+        _scopeFactory = scopeFactory;
+    }
+
+    public async Task AddWhiteboard(Guid whiteboardId)
+    {
+        var getWhiteboardService = _scopeFactory.CreateScope().ServiceProvider.GetRequiredService<GetWhiteboardService>();
+        var whiteboard = await getWhiteboardService.GetWhiteboard(whiteboardId);
+        
+        _whiteboards[whiteboardId] = whiteboard;
+    }
+
+    public bool WhiteboardExists(Guid whiteboardId)
+    {
+        return _whiteboards.ContainsKey(whiteboardId);
+    }
+
+    public void RemoveWhiteboard(Guid whiteboardId)
+    {
+        _whiteboards.TryRemove(whiteboardId, out _);
+    }
+
+    public Whiteboard? GetWhiteboard(Guid whiteboardId)
+    {
+        return _whiteboards.GetValueOrDefault(whiteboardId);
+    }
+
+    public void AddUserToWhiteboard(Guid userId, Guid whiteboardId)
+    {
+        _userInWhiteboards[userId] = whiteboardId;
+    }
+
+    public Guid GetUserWhiteboard(Guid userId)
+    {
+        return _userInWhiteboards[userId];
+    }
+
+    public void RemoveUserFromWhiteboard(Guid userId, Guid whiteboardId)
+    {
+        _userInWhiteboards.TryRemove(whiteboardId, out _);
+    }
+
+    public Whiteboard? GetWhiteboardForUser(Guid userId)
+    {
+        return GetWhiteboard(GetUserWhiteboard(userId));
+    }
+}