#pragma once
#include <string>

#ifdef AECRXBASE_EXPORT
#define AECDLLIMPEXP __declspec(dllexport)
#else
#define AECDLLIMPEXP __declspec(dllimport)
#endif

class AECDLLIMPEXP Base64
{
public:
	static std::string EncodeF2S(CFile *pFile);
	static std::string Encode(const char *pBuffer, const ULONGLONG &length);
	static std::string Encode(const std::string &plaintext);
	static std::string Decode(const std::string &ciphertext);
	static ULONGLONG Decode(const std::string &ciphertext, char *&pBuffer);
	static ULONGLONG DecodeS2F(const std::string &ciphertext, CFile *pFile);

public:
	/*注意：
		plaintext 会在内部转成 utf-8 格式进行base64编码
		ciphertext 实际上是ANSII编码，会在内部转为ANSII码
	*/ 
	static std::wstring Encode(const std::wstring &plaintext);
	static std::wstring Decode(const std::wstring &ciphertext);
	static std::wstring EncodeF2W(CFile *pFile);
	static ULONGLONG DecodeW2F(const std::wstring &ciphertext, CFile *pFile);

	static std::string unicode2Ansii(LPCTSTR psz, const DWORD &codePage);
	static std::wstring ansii2Unicode(LPCSTR psz, const DWORD &codePage);
};