#ifndef ENGINE_SHARED_GHOST_H
#define ENGINE_SHARED_GHOST_H

#include <engine/ghost.h>

enum
{
	MAX_ITEM_SIZE = 128,
	NUM_ITEMS_PER_CHUNK = 50,
};

class CGhostItem
{
public:
	unsigned char m_aData[MAX_ITEM_SIZE];
	int m_Type;

	CGhostItem() : m_Type(-1) {}
	CGhostItem(int Type) : m_Type(Type) {}
	void Reset() { m_Type = -1; }
};

class CGhostRecorder : public IGhostRecorder
{
	IOHANDLE m_File;
	class IConsole *m_pConsole;
	class IStorage *m_pStorage;

	CGhostItem m_LastItem;

	char m_aBuffer[MAX_ITEM_SIZE * NUM_ITEMS_PER_CHUNK];
	char *m_pBufferPos;
	int m_BufferNumItems;

	void ResetBuffer();
	void FlushChunk();

public:
	CGhostRecorder();

	void Init();

	int Start(const char *pFilename, const char *pMap, unsigned MapCrc, const char *pName);
	int Stop(int Ticks, int Time);

	void WriteData(int Type, const void *pData, int Size);
	bool IsRecording() const { return m_File != 0; }
};

class CGhostLoader : public IGhostLoader
{
	IOHANDLE m_File;
	class IConsole *m_pConsole;
	class IStorage *m_pStorage;

	CGhostHeader m_Header;

	CGhostItem m_LastItem;

	char m_aBuffer[MAX_ITEM_SIZE * NUM_ITEMS_PER_CHUNK];
	char *m_pBufferPos;
	int m_BufferNumItems;
	int m_BufferCurItem;
	int m_BufferPrevItem;

	void ResetBuffer();
	int ReadChunk(int *pType);

public:
	CGhostLoader();

	void Init();

	int Load(const char *pFilename, const char *pMap, unsigned Crc);
	void Close();
	const CGhostHeader *GetHeader() const { return &m_Header; }

	bool ReadNextType(int *pType);
	bool ReadData(int Type, void *pData, int Size);

	bool GetGhostInfo(const char *pFilename, CGhostHeader *pGhostHeader, const char *pMap, unsigned Crc);
};

class CGhostUpdater
{
	// all
	struct CGhostHeaderMain
	{
		unsigned char m_aMarker[8];
		unsigned char m_Version;
	};

	// version 2
	struct CGhostHeaderV2
	{
		unsigned char m_aMarker[8];
		unsigned char m_Version;
		char m_aOwner[MAX_NAME_LENGTH];
		char m_aMap[64];
		unsigned char m_aCrc[4];
		int m_NumShots;
		float m_Time;
	};

	static const int ms_SkinSizeV2 = 17 * sizeof(int);
	static const int ms_SkinOffsetV2 = 8 * sizeof(int);

	// version 3
	struct CGhostHeaderV3
	{
		unsigned char m_aMarker[8];
		unsigned char m_Version;
		char m_aOwner[MAX_NAME_LENGTH];
		char m_aSkinName[64];
		int m_UseCustomColor;
		int m_ColorBody;
		int m_ColorFeet;
		char m_aMap[64];
		unsigned char m_aCrc[4];
		int m_NumShots;
		float m_Time;
	};

	// actual version
	struct CGhostSkin
	{
		int m_Skin0;
		int m_Skin1;
		int m_Skin2;
		int m_Skin3;
		int m_Skin4;
		int m_Skin5;
		int m_UseCustomColor;
		int m_ColorBody;
		int m_ColorFeet;
	};

	static const int ms_GhostCharacterSize = 11 * sizeof(int);

public:
	static bool Update(class IGhostRecorder *pRecorder, class IStorage *pStorage, class IConsole *pConsole, const char *pFilename);
};

#endif