// $Id$
//
// Copyright (C) 2008 
// Fraunhofer Institute for Open Communication Systems (FOKUS)
// Competence Center NETwork research (NET), St. Augustin, GERMANY
//     Stefan Bund <g0dil@berlios.de>
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the
// Free Software Foundation, Inc.,
// 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.

/** \file
    \brief Traits internal header */

#ifndef IH_SENF_Scheduler_Console_Traits_
#define IH_SENF_Scheduler_Console_Traits_ 1

// Custom includes
#include <string>
#include <boost/preprocessor/seq/for_each.hpp>
#include <boost/preprocessor/stringize.hpp>
#include <boost/preprocessor/facilities/empty.hpp>
#include <boost/bimap.hpp>
#include <boost/assign/list_inserter.hpp>
#include "../../Utils/singleton.hh"

///////////////////////////////ih.p////////////////////////////////////////

namespace senf {
namespace console {
namespace detail {

#ifndef DOXYGEN

    typedef boost::bimap<std::string, long> EnumTable;

    long parseEnum(EnumTable const & table, ParseCommandInfo::TokensRange const & tokens);
    std::string formatEnum(EnumTable const & table, long value);

    template <class EnumType>
    struct EnumTraits : public senf::singleton< EnumTraits<EnumType> >
    {
        using senf::singleton< EnumTraits<EnumType> >::instance;
        EnumTable table;
    };

#   define SENF_CONSOLE_REGISTER_ENUM_ELT(r,d,e) \
        (BOOST_PP_STRINGIZE(e), static_cast<long>(d e))

#   define SENF_CONSOLE_REGISTER_ENUM_(Prefix, Type, Values)                                      \
        void senf_console_init_enum_table(Prefix Type)                                            \
        {                                                                                         \
            senf::console::detail::EnumTraits<Prefix Type> & traits (                             \
                senf::console::detail::EnumTraits<Prefix Type>::instance() );                     \
            if (traits.table.empty())                                                             \
                boost::assign::insert(traits.table)                                               \
                    BOOST_PP_SEQ_FOR_EACH( SENF_CONSOLE_REGISTER_ENUM_ELT, Prefix, Values );      \
        }                                                                                         \
        void senf_console_parse_argument(                                                         \
            senf::console::ParseCommandInfo::TokensRange const & tokens, Prefix Type & out)       \
        {                                                                                         \
            senf_console_init_enum_table( Prefix Type() );                                        \
            out = static_cast<Prefix Type>(                                                       \
                senf::console::detail::parseEnum(                                                 \
                    senf::console::detail::EnumTraits<Prefix Type>::instance().table, tokens));   \
        }                                                                                         \
        void senf_console_format_value(Prefix Type value, std::ostream & os)                      \
        {                                                                                         \
            senf_console_init_enum_table( Prefix Type() );                                        \
            os << senf::console::detail::formatEnum(                                              \
                senf::console::detail::EnumTraits<Prefix Type>::instance().table,                 \
                static_cast<long>(value) );                                                       \
        }

#endif

}}}

///////////////////////////////ih.e////////////////////////////////////////
#endif


// Local Variables:
// mode: c++
// fill-column: 100
// comment-column: 40
// c-file-style: "senf"
// indent-tabs-mode: nil
// ispell-local-dictionary: "american"
// compile-command: "scons -u test"
// End: