#pragma once
#include "ApiLoader.h"
#include "utils.h"

class Packer
{
	DWORD size;
	DWORD capacity;
	BYTE* buffer;
	DWORD index;

public:
	Packer();
	Packer(BYTE* buffer, ULONG size);
	~Packer();

	VOID Set32(ULONG index, ULONG value);
	VOID EnsureCapacity(ULONG needed);

	VOID Pack64(ULONG64 value);
	VOID Pack32(ULONG value);
	VOID Pack16(WORD value);
	VOID Pack8(BYTE value);
	VOID PackBytes(PBYTE data, ULONG data_size);
	VOID PackFlatBytes(PBYTE data, ULONG data_size);
	VOID PackStringA(LPSTR str);

	BYTE  Unpack8();
	ULONG Unpack32();
	BYTE* UnpackBytes(ULONG* size);
	BYTE* UnpackBytesCopy(ULONG* size);

	VOID  Clear(BOOL renew);
	PBYTE data();
	ULONG datasize();

	static void* operator new(size_t sz);
	static void operator delete(void* p) noexcept;
};