/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2022 Mikolaj Wielgus
 * Copyright (C) 2022 KiCad Developers, see AUTHORS.txt for contributors.
 *
 * 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 3
 * 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, you may find one here:
 * https://www.gnu.org/licenses/gpl-3.0.html
 * or you may search the http://www.gnu.org website for the version 3 license,
 * or you may write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
 */

#include <sim/sim_library_spice.h>
#include <sim/spice_grammar.h>
#include <locale_io.h>
#include <pegtl.hpp>
#include <pegtl/contrib/parse_tree.hpp>


namespace SIM_LIBRARY_SPICE_PARSER
{
    using namespace SPICE_GRAMMAR;

    struct unknownLine : until<newline> {};

    struct library : star<sor<spiceUnit,
                              unknownLine>> {};

    struct libraryGrammar : must<library, eof> {};


    template <typename Rule> struct librarySelector : std::false_type {};

    template <> struct librarySelector<modelUnit> : std::true_type {};
    template <> struct librarySelector<modelName> : std::true_type {};
    
    // For debugging.
    template <> struct librarySelector<unknownLine> : std::true_type {};
};


bool SIM_LIBRARY_SPICE::ReadFile( const wxString& aFilename )
{
    if( !SIM_LIBRARY::ReadFile( aFilename ) )
        return false;

    LOCALE_IO toggle;

    tao::pegtl::file_input in( aFilename.ToStdString() );
    std::unique_ptr<tao::pegtl::parse_tree::node> root;

    try
    {
        root = tao::pegtl::parse_tree::parse<SIM_LIBRARY_SPICE_PARSER::libraryGrammar,
                                             SIM_LIBRARY_SPICE_PARSER::librarySelector>
            ( in );
    }
    catch( tao::pegtl::parse_error& e )
    {
        m_errorMessage = wxString::Format( "Parsing failed: %s", e.what() );
        return false;
    }

    wxASSERT( root );

    for( const auto& node : root->children )
    {
        if( node->is_type<SIM_LIBRARY_SPICE_PARSER::modelUnit>() )
        {
            m_models.push_back( SIM_MODEL::Create( node->string() ) );

            if( node->children.size() != 1 )
            {
                m_errorMessage = wxString::Format( 
                        "Captured %d name tokens, expected one", node->children.size() );
                return false;
            }

            m_modelNames.emplace_back( node->children.at( 0 )->string() );
        }
        else if( node->is_type<SIM_LIBRARY_SPICE_PARSER::unknownLine>() )
        {
            // Do nothing.
        }
        else
        {
            m_errorMessage = wxString::Format( "Unhandled parse tree node: '%s'", node->string() );
            return false;
        }
    }

    return true;
}


void SIM_LIBRARY_SPICE::WriteFile( const wxString& aFileName )
{
    
}