// COMPILE_LINE: g++ -o test_pgp_handler test_pgp_handler.cc -I../../../openpgpsdk/include  -I../ -L../lib -lretroshare ../../../openpgpsdk/lib/libops.a -lssl -lcrypto -lbz2
//
#include <iostream>
#include "pgphandler.h"

static std::string passphrase_callback(const std::string& what)
{
	return std::string(getpass(what.c_str())) ;
}

int main(int argc,char *argv[])
{
	// test pgp ids.
	//
	PGPIdType id("3e5b22140ef56abb") ;

	std::cerr << "Id is : " << std::hex << id.toUInt64() << std::endl;
	std::cerr << "Id st : " << id.toStdString() << std::endl;

	// test PGPHandler
	//
	// 0 - init

	static const std::string pubring = "pubring.gpg" ;
	static const std::string secring = "secring.gpg" ;

	PGPHandler pgph(pubring,secring,&passphrase_callback) ;
	pgph.printKeys() ;

	std::cerr << std::endl ;
	std::cerr << std::endl ;

	std::cerr << "Looking for keys with complete secret/public key pair: " << std::endl;

	std::list<PGPIdType> lst ;	
	pgph.availableGPGCertificatesWithPrivateKeys(lst) ;

	for(std::list<PGPIdType>::const_iterator it(lst.begin());it!=lst.end();++it)
		std::cerr << "Found id : " << (*it).toStdString() << std::endl;

	std::string email_str("test@gmail.com") ;
	std::string  name_str("test") ;
	std::string passw_str("test00") ;

	std::cerr << "Now generating a new PGP certificate: " << std::endl;
	std::cerr << "   email: " << email_str << std::endl;
	std::cerr << "   passw: " << passw_str << std::endl;
	std::cerr << "   name : " <<  name_str << std::endl;

	PGPIdType newid ;
	std::string errString ;

	if(!pgph.GeneratePGPCertificate(name_str, email_str, passw_str, newid, errString))
		std::cerr << "Generation of certificate returned error: " << errString << std::endl;
	else
		std::cerr << "Certificate generation success. New id = " << newid.toStdString() << std::endl;

	PGPIdType id2(std::string("618E54CF7670FF5E")) ;
	std::cerr << "Now extracting key " << id2.toStdString() << " from keyring:" << std::endl ;
	std::string cert = pgph.SaveCertificateToString(id2,false) ;

	std::cerr << "Now, trying to re-read this cert from the string:" << std::endl;

	PGPIdType id3 ;
	std::string error_string ;
	pgph.LoadCertificateFromString(cert,id3,error_string) ;

	std::cerr << "Loaded cert id: " << id3.toStdString() << ", Error string=\"" << error_string << "\"" << std::endl;

	std::cerr << cert << std::endl;

	std::cerr << "Testing password callback: " << std::endl;
	std::string pass = passphrase_callback("Please enter password: ") ;

	std::cerr << "Password = \"" << pass << "\"" << std::endl;

	std::cerr << "Testing signature with keypair " << newid.toStdString() << std::endl;
	char test_bin[14] = "34f4fhuif3489" ;

	unsigned char sign[100] ;
	uint32_t signlen = 100 ;

	if(!pgph.SignDataBin(newid,test_bin,13,sign,&signlen))
		std::cerr << "Signature error." << std::endl;
	else
		std::cerr << "Signature success." << std::endl;

	return 0 ;
}