#pragma once

#include "IRenderCommandNode.h"
#include "IUpdatable.h"
#include "IEngine.h"
#include "../Commands/CommandUserBase.h"


class RenderCommandNode
	: public IRenderCommandNode
	, public IRenderCommandNodeInternal
	, public CommandUserBase
	, public IUpdatable
{
public:
	RenderCommandNode(IEngine& argEngine);
	virtual ~RenderCommandNode();

	// IRenderCommandNode
	virtual const std::vector<ICommandUser*> get_CommandUsers() const;
	virtual void set_Parent(IRenderCommandNode* ar_Node_);
	virtual IRenderCommandNode* get_Parent() const;
	virtual bool IsDirty() const;
	virtual void MarkDirty();
	virtual void AddCommandUser(ICommandUser& argCommandUser);
	virtual void RemoveCommandUser(ICommandUser& argCommandUser);
	virtual void ReplaceCommandUser(ICommandUser& argWhatCommandUser, ICommandUser& argWhithCommandUser);

	virtual void ProcessCommands();

	// IUpdatable
	virtual void Update(bool argForceUpdate);
	virtual bool get_WantsUpdate() const;

	// ICommandUser
	virtual CommandExecuteResult::Enumeration ExecuteCommand(unsigned char argCommandType, ICommandBuffer& argCurrentBuffer, uint32 argCurrentPositon);
	virtual string8 get_UserName() const { return "RenderCommandNode"; }

protected:
	// IRenderCommandNodeInternal
	virtual void GenerateDeviceCommands();
	virtual ICommandBuffer* get_CommandBuffer() const;

private:
	IEngine& m_Engine;
	bool m_Dirty;
	IRenderCommandNode* m_ParentNode;
	std::vector<ICommandUser*> m_CommandUsers;
	ICommandBuffer* m_CommandBuffer;
};