public override Task OnDisconnected(bool stopCalled)
{
string connection = Context.ConnectionId;
var rooms = Rooms.Where(r => r.User1.ConnectionId == connection || r.User2.ConnectionId == connection || r.User1.ConnectionId == connection || r.User2.ConnectionId == connection).ToList();
for (int i = 0; i < rooms.Count; i++)
{
Clients.Clients(new List <string> {
rooms[i].User1.ConnectionId, rooms[i].User2.ConnectionId
}).roomClosed();
Rooms.Remove(rooms[i]);
}
Users.RemoveAll(u => u.ConnectionId == connection);
LogUsers();
return(base.OnDisconnected(stopCalled));
}