/*
 *  CERT_License.h
 *
 *  Created by Andrew Salamon on 9/15/08.
 *  Copyright 2008 Machine Perception Laboratory, University of California San Diego. All rights reserved.
 *
 */

#ifndef __CERT_LICENSE_H__
#define __CERT_LICENSE_H__

#include <string>
#include <vector>
#include <iostream>

#include <boost/date_time/posix_time/posix_time.hpp>
#include <boost/date_time/gregorian/gregorian.hpp>

namespace bg = boost::gregorian;

#include "CERT_LicenseVerifier.h"

namespace CERT
{

class License
{
public:
	static bg::date stringToDate( const std::string &dtStr );

	static const int invalid;
	static const int internal;
	static const int evaluation;
	static const int licensed;
	
public:
	License();
	License( const std::string &filepath );
	
	void clear();

	int getType();
	void setType( int _type );
	
	std::string getName();
	void setName( const std::string &name );
	
	bg::date getStartDate();
	void setStartDate( const bg::date &dt );
	
	bg::date getEndDate();
	void setEndDate( const bg::date &dt );  ///< Will adjust duration to match.
	
	unsigned int getDuration();
	void setDuration( unsigned int dur ); ///< Will adjust end date to match.
	
	std::string toString(); ///< Newline delimited. Primarily for use by encryption code to verify a license hasn't been tampered with.
	
	void fromStream( std::istream &is );
	void toStream( std::ostream &os );
	
	void setPrivateKeyPath( const std::string &path );
	
	int daysLeft(); ///< <= 0 means the license has expired.
	
private:
	int type;
	std::string name;
	bg::date start;
	unsigned int duration;
	
	LicenseVerifier verifier;
};
} // end namespace CERT

std::istream &operator>>( std::istream &is, CERT::License &license );
std::ostream &operator<<( std::ostream &os, CERT::License &license );

#endif