#ifndef _ENCRYPT_ENGINE_H_
#define _ENCRYPT_ENGINE_H_

#include <string>
#include "DataCommons.h"
#include "xxtea.h"

class EncryptEngine
{
public:
	//encrypt value of [DataType] type to string
	std::string encrypt(int number, Jumpeleon::DataType type);

	//decrypt value with [Save] type
	int decrypt(std::string tempStr, Jumpeleon::DataType type);

	//singleton getInstance
	static EncryptEngine* getInstance();
	static void destroyInstance();

private:
	const xxtea_long keyLen = 8;
	unsigned char key[8];

	static bool init();

	static EncryptEngine* instance;
	//disallow for singleton
	EncryptEngine() {};
	EncryptEngine(const EncryptEngine&) {};
	EncryptEngine& operator= (const EncryptEngine&) {};
	~EncryptEngine() { if (instance) destroyInstance(); }
};

#endif