#pragma once

#include <stdint.h>
#include "libNPK.h"


struct LuaNPKFileItemBaseInfo : public NPK::FileItemBaseInfo
{
	const char* c_keyName() const { return keyName.c_str(); }
};

struct LuaNPKFileItemFullInfo : public NPK::FileItemFullInfo
{
	const char* c_npkName() const { return npkName.c_str(); }
	const char* c_npkBase() const { return npkBase.c_str(); }
	const char* c_keyName() const { return keyName.c_str(); }
};

class LuaNPKFileStream
{
public:
	const char* name(void) const;
	uint32_t size(void) const;
	uint32_t read(void* buffer, uint32_t size);
	bool seek(uint32_t offset);
	uint32_t tell(void) const;
	uint32_t crc32(void);
	bool isEOF(void) const;

	//write total file content to local disk file, wszFileName(utf8)
	bool writeToDiskFile(const char* wszFileName);
public:
	NPK::IFileStream* m_pFileStream = nullptr;
};

class LuaNPKFileList
{
public:
	static LuaNPKFileList* createEmpty();
	static void destroy(LuaNPKFileList* instance);
public:
	int32_t getFileCounts(void) const;
	LuaNPKFileItemFullInfo getFileItem(int32_t index) const;

public:
	NPK::IFileList* m_pFileList = nullptr;
};

class LuaNPKFile
{
public:
	static LuaNPKFile* create();
	static void destroy(LuaNPKFile* instance);

public:
	bool openPakFile(const char* szPackFileName);
	bool closePakFile(void);
	int32_t getFileCounts(void) const;

	LuaNPKFileList* generateFullInfoList();

	LuaNPKFileItemBaseInfo getFileNode(int32_t index) const;
	LuaNPKFileStream* openFileStream(const char* szFileName);
	void closeFileStream(LuaNPKFileStream* fileStream);

public:
	NPK::INPKFile* m_pNPKFile = nullptr;

public:
	LuaNPKFile();
	~LuaNPKFile();
};

void registerNPKLuaLibs(struct lua_State* L);