#ifndef REPLAY_H
#define REPLAY_H

#include "config.h"

namespace ygo {

// replay flag
#define REPLAY_COMPRESSED	0x1
#define REPLAY_TAG			0x2
#define REPLAY_DECODED		0x4
#define REPLAY_SINGLE_MODE	0x8
#define REPLAY_UNIFORM		0x10

// max size
#define MAX_REPLAY_SIZE	0x20000
#define MAX_COMP_SIZE	0x2000

struct ReplayHeader {
	unsigned int id{};
	unsigned int version{};
	unsigned int flag{};
	unsigned int seed{};
	unsigned int datasize{};
	unsigned int start_time{};
	unsigned char props[8]{};
};

class Replay {
public:
	Replay();
	~Replay();

	// record
	void BeginRecord();
	void WriteHeader(ReplayHeader& header);
	void WriteData(const void* data, int length, bool flush = true);
	void WriteInt32(int data, bool flush = true);
	void WriteInt16(short data, bool flush = true);
	void WriteInt8(char data, bool flush = true);
	void Flush();
	void EndRecord();
	void SaveReplay(const wchar_t* name);

	// play
	bool OpenReplay(const wchar_t* name);
	static bool CheckReplay(const wchar_t* name);
	static bool DeleteReplay(const wchar_t* name);
	static bool RenameReplay(const wchar_t* oldname, const wchar_t* newname);
	bool ReadNextResponse(unsigned char resp[]);
	void ReadName(wchar_t* data);
	//void ReadHeader(ReplayHeader& header);
	bool ReadData(void* data, int length);
	template<typename T>
	T ReadValue();
	int ReadInt32();
	short ReadInt16();
	char ReadInt8();
	void Rewind();

	FILE* fp{ nullptr };
#ifdef _WIN32
	HANDLE recording_fp{ nullptr };
#endif

	ReplayHeader pheader;
	unsigned char* comp_data;
	size_t comp_size{};

private:
	unsigned char* replay_data;
	size_t replay_size{};
	unsigned char* pwrite{};
	unsigned char* pdata{};
	bool is_recording{};
	bool is_replaying{};
};

}

#endif
