/*
  gpgagentgetinfoassuantransaction.cpp - Assuan Transaction to get information from gpg-agent
  Copyright (C) 2009 Klarälvdalens Datakonsult AB

  This file is part of GPGME++.

  GPGME++ is free software; you can redistribute it and/or
  modify it under the terms of the GNU Library General Public
  License as published by the Free Software Foundation; either
  version 2 of the License, or (at your option) any later version.

  GPGME++ is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU Library General Public License for more details.

  You should have received a copy of the GNU Library General Public License
  along with GPGME++; see the file COPYING.LIB.  If not, write to the
  Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  Boston, MA 02110-1301, USA.
*/

#include <config-gpgme++.h>

#include "gpgagentgetinfoassuantransaction.h"
#include "error.h"
#include "data.h"

#include <boost/algorithm/string/split.hpp>
#include <boost/algorithm/string/classification.hpp>
#include <boost/static_assert.hpp>

#include <sstream>

using namespace GpgME;
using namespace boost;

GpgAgentGetInfoAssuanTransaction::GpgAgentGetInfoAssuanTransaction( InfoItem item )
    : AssuanTransaction(),
      m_item( item ),
      m_command(),
      m_data()
{

}

GpgAgentGetInfoAssuanTransaction::~GpgAgentGetInfoAssuanTransaction() {}

static unsigned long to_pid( const std::string & s ) {
    std::stringstream ss( s );
    unsigned int result;
    if ( ss >> result )
        return result;
    else
        return 0U;
}

std::string GpgAgentGetInfoAssuanTransaction::version() const {
    if ( m_item == Version )
        return m_data;
    else
        return std::string();
}

unsigned int GpgAgentGetInfoAssuanTransaction::pid() const {
    if ( m_item == Pid )
        return to_pid( m_data );
    else
        return 0U;
}

std::string GpgAgentGetInfoAssuanTransaction::socketName() const {
    if ( m_item == SocketName )
        return m_data;
    else
        return std::string();
}

std::string GpgAgentGetInfoAssuanTransaction::sshSocketName() const {
    if ( m_item == SshSocketName )
        return m_data;
    else
        return std::string();
}

static const char * tokens[] = {
    "version",
    "pid",
    "socket_name",
    "ssh_socket_name",
    "scd_running",
};
BOOST_STATIC_ASSERT(( sizeof tokens / sizeof *tokens == GpgAgentGetInfoAssuanTransaction::LastInfoItem ));

void GpgAgentGetInfoAssuanTransaction::makeCommand() const {
    assert( m_item >= 0 );
    assert( m_item < LastInfoItem );
    m_command = "GETINFO ";
    m_command += tokens[m_item];
}

const char * GpgAgentGetInfoAssuanTransaction::command() const {
    makeCommand();
    return m_command.c_str();
}

Error GpgAgentGetInfoAssuanTransaction::data( const char * data, size_t len ) {
    m_data.append( data, len );
    return Error();
}

Data GpgAgentGetInfoAssuanTransaction::inquire( const char * name, const char * args, Error & err ) {
    (void)name; (void)args; (void)err;
    return Data::null;
}

Error GpgAgentGetInfoAssuanTransaction::status( const char * status, const char * args ) {
    (void)status; (void)args;
    return Error();
}
