#ifndef RAGNAROK_SOURCE_UTILITY_GGHASH_H
#define RAGNAROK_SOURCE_UTILITY_GGHASH_H

#include <cstdlib>
#include <windows.h>

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

  DWORD GetSize() const;
  DWORD GetError() const;
  __declspec(noinline) BOOL Load(const wchar_t* filename);
  BOOL Load(const char* filename);
  int Check();
  int VerifyHash(const wchar_t* name, DWORD hash);
  __declspec(noinline) int VerifyBuffer(const wchar_t* name, const unsigned char* buf, unsigned int size);
  int VerifyBuffer(const char* name, const unsigned char* buf, unsigned int size);
  __declspec(noinline) int VerifyFile(const wchar_t* filename);
  int VerifyFile(const char* filename);

protected:
  // INLINED
  void Clear() {
    this->m_error = 0;
    this->m_size = 0;
    if (this->m_data) {
      std::free(this->m_data);
      this->m_data = nullptr;
    }
  }

  /* 0004 */ DWORD m_error;
  /* 0008 */ DWORD m_size;
  /* 000C */ BYTE* m_data;
};

#if defined(_WIN32) && !defined(_WIN64)
static_assert(sizeof(CGGHash) == 16);
#endif

#endif