ChangePrimaryNodeCommand.h

#pragma once
 
#include "Engine/Core/Types.h"
#include "Engine/Network/NetworkManager.h"
#include "Engine/UndoRedo/UndoCommand.h"
#include <optional>
 
namespace enzo::nt {
 
class ChangePrimaryNodeCommand : public UndoCommand
{
  public:
    ChangePrimaryNodeCommand(std::optional<NodeId> prev, NodeId next) : prev_(prev), next_(next) {}
 
    void undo() override
    {
        if (prev_.has_value())
        {
            if (!nm().isValidNode(*prev_)) return;
            nm().setPrimaryNode(*prev_);
        }
        else
        {
            nm().clearPrimaryNode();
        }
    }
 
    void redo() override
    {
        if (!nm().isValidNode(next_)) return;
        nm().setPrimaryNode(next_);
    }
 
    UndoCommandType type() const override { return UndoCommandType::ChangePrimaryNode; }
 
  private:
    std::optional<NodeId> prev_;
    NodeId next_;
};
 
} // namespace enzo::nt