#ifndef IShaderGraph_h__
#define IShaderGraph_h__

#include "shaders/IShaderGraphNodeFactory.h"
#include "delegate/Delegate.h"
#include <vector>
#include <IMemoryStream.h>

namespace LifeGraphics
{
	class IShaderGraph
	{
	public:
		EVENT1(GraphEvent, IShaderGraphNode*);
		GraphEvent Event_AddNode;

		IShaderGraph(IShaderGraphNodeFactory* factory);
		~IShaderGraph();
		IShaderGraphNode* AddNode(const String& name);
        bool DeleteNode(int id);
		void Serialize(LifeCore::IMemoryStream* stm);
		bool Deserialize(LifeCore::IMemoryStream* stm);
		void SerializeXML(LifeCore::IMemoryStream* stm);
		bool DeserializeXML(LifeCore::IMemoryStream* stm);
		IShaderGraphNode* GetNodeByID(int id);
		IShaderGraphNode* GetNodeByArrayID(int id);
		size_t GetNodeCount();
		void Clear();
	private:
		int texture_slots[16];
		int last_id;
		int GrabTextureSlot();
		int GetID(){return last_id++;}
		IShaderGraphNodeFactory* pFactory;
		typedef std::vector<IShaderGraphNode*> NodeCollection;
        typedef std::vector<IShaderGraphNode*>::iterator NodeCollectionIt;
		NodeCollection Nodes;
	};
}
#endif // IShaderGraph_h__