#pragma once

#include <toolkit/ILock.h>
#include "KSmartPtr.h"
//#include <vector>
#include <map>

const int c_nMaxTextureCount = 65535; ///< 타일값을 WORD형으로 저장하므로

class K3DRenderDevice;
DECL_SPTR(K3DTexture)

class CTerrainTextureInfo
{
public:
	CTerrainTextureInfo();
	virtual ~CTerrainTextureInfo();

	bool Initialize( const char* szTextureInfoFileName, K3DRenderDevice* pDevice );
	void Release();

	const std::vector<std::string>& GetTextureCategoryNames() const { return m_CategoryNames; }

	void EnumTextureNumberList( std::vector< WORD > & vList ) const
	{
		for( std::map< WORD, TEXINFO_STRUCT >::const_iterator it = m_mapTexInfo.begin(); it != m_mapTexInfo.end(); ++it )
			vList.push_back( (*it).first );	
	}

	bool IsValidTexture( WORD wTextureNum ) const
	{
		std::map< WORD, TEXINFO_STRUCT >::const_iterator it = m_mapTexInfo.find( wTextureNum );
		if( it == m_mapTexInfo.end() )
			return false;
		return (*it).second.spTexture != NULL ;
	}

	int GetTextureCategory( WORD wTextureNum ) const
	{
		std::map< WORD, TEXINFO_STRUCT >::const_iterator it = m_mapTexInfo.find( wTextureNum );
		if( it == m_mapTexInfo.end() )
			return -1;
		return (*it).second.nCategory;
	}

	float GetTextureDetailRatio( WORD wTextureNum ) const
	{
		std::map< WORD, TEXINFO_STRUCT >::const_iterator it = m_mapTexInfo.find( wTextureNum );
		if( it == m_mapTexInfo.end() )
			return 1.0f;
		return (*it).second.fDetailRatio;
	}	

	const char* GetTextureName( WORD wTextureNum, bool bNoReturnNull = true ) const
	{
		std::map< WORD, TEXINFO_STRUCT >::const_iterator it = m_mapTexInfo.find( wTextureNum );
		if( it == m_mapTexInfo.end() )
			return "";
		return (*it).second.strName.c_str();
	}

	K3DTexture* GetTexture( WORD wTextureNum );

	K3DTexture* GetNotFoundTexture();

	void RemoveUnnecessaryTexture();

private:
	K3DRenderDevice* m_pDevice;

	struct TEXINFO_STRUCT
	{
		TEXINFO_STRUCT()
		{
			bIsLoadFailed= false;
			nCategory    = 0;
			fDetailRatio = 1.f;
			dwLastAccessTime = 0;
		}

		bool			bIsLoadFailed;
		int				nCategory;
		DWORD			dwLastAccessTime;
		float			fDetailRatio;
		std::string		strName;
        K3DTextureSPtr	spTexture;
	};
	std::map< WORD, TEXINFO_STRUCT >	m_mapTexInfo;

	DWORD				m_dwLastTextureRemoveTime;

	std::vector<std::string> m_CategoryNames;

	K3DTextureSPtr		m_spDummyTexture;
	XCriticalSection	m_lckTexture;

	bool InitializeDummyTexture();
	void ReleaseDummyTexture();

};