/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2004 Jean-Pierre Charras, jaen-pierre.charras@gipsa-lab.inpg.com
 * Copyright (C) 2008-2011 Wayne Stambaugh <stambaughw@verizon.net>
 * Copyright (C) 2004-2011 KiCad Developers, see change_log.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 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, you may find one here:
 * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
 * or you may search the http://www.gnu.org website for the version 2 license,
 * or you may write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
 */

/**
 * @file backanno.cpp
 * @brief Functions for backannotating footprint information.
 */

#include <fctsys.h>
#include <confirm.h>
#include <kicad_string.h>
#include <gestfich.h>
#include <appl_wxstruct.h>
#include <wxEeschemaStruct.h>
#include <build_version.h>

#include <general.h>
#include <sch_sheet_path.h>
#include <sch_component.h>
#include <netlist.h>


const wxString BackAnnotateFileWildcard( wxT( "Eeschema Back Annotation File (*.stf)|*.stf" ) );


bool SCH_EDIT_FRAME::ProcessStuffFile( FILE* aFile, bool aSetFieldAttributeToVisible  )
{
    int   LineNum = 0;
    char* cp, Ref[256], FootPrint[256], Line[1024];
    SCH_SHEET_LIST SheetList;
    wxString reference;
    wxString footprint;

    // Build a flat list of components in schematic:
    SCH_REFERENCE_LIST referencesList;
    SheetList.GetComponents( referencesList, false );

    // Now, foe each component found in file,
    // replace footprint field value by the new value:
    while( GetLine( aFile, Line, &LineNum, sizeof(Line) ) )
    {
        if( sscanf( Line, "comp = \"%s module = \"%s", Ref, FootPrint ) == 2 )
        {
            for( cp = Ref; *cp; cp++ )
                if( *cp == '"' )
                    *cp = 0;

            for( cp = FootPrint; *cp; cp++ )
                if( *cp == '"' )
                    *cp = 0;

            reference = FROM_UTF8( Ref );
            footprint = FROM_UTF8( FootPrint );

            // Search the component in the flat list
            for( unsigned ii = 0; ii < referencesList.GetCount(); ii++ )
            {
                if( reference.CmpNoCase( referencesList[ii].GetRef() ) == 0 )
                {
                    // We have found a candidate.
                    // Note: it can be not unique (multiple parts per package)
                    // So we do not stop the search here
                    SCH_COMPONENT* component = referencesList[ii].GetComponent();
                    SCH_FIELD * fpfield = component->GetField( FOOTPRINT );
                    /* Give a reasonable value to the field position and
                     * orientation, if the text is empty at position 0, because
                     * it is probably not yet initialized
                     */
                    if( fpfield->m_Text.IsEmpty()
                      && ( fpfield->GetPosition() == component->GetPosition() ) )
                    {
                        fpfield->m_Orient = component->GetField( VALUE )->m_Orient;
                        fpfield->SetPosition( component->GetField( VALUE )->GetPosition() );
                        fpfield->m_Size   = component->GetField( VALUE )->m_Size;

                        if( fpfield->m_Orient == 0 )
                            fpfield->m_Pos.y += 100;
                        else
                            fpfield->m_Pos.x += 100;
                    }

                    fpfield->m_Text = footprint;

                    if( aSetFieldAttributeToVisible )
                        component->GetField( FOOTPRINT )->m_Attributs &= ~TEXT_NO_VISIBLE;
                    else
                        component->GetField( FOOTPRINT )->m_Attributs |= TEXT_NO_VISIBLE;
                }
            }
        }
    }

    fclose( aFile );
    return true;
}


bool SCH_EDIT_FRAME::ReadInputStuffFile()
{
    wxString title, filename;
    FILE*    file;
    wxString msg;
    bool     visible = false;

    wxFileDialog dlg( this, _( "Load Back Annotate File" ), wxEmptyString, wxEmptyString,
                      BackAnnotateFileWildcard, wxFD_OPEN | wxFD_FILE_MUST_EXIST );

    if( dlg.ShowModal() == wxID_CANCEL )
        return false;

    filename = dlg.GetPath();
    title  = wxGetApp().GetAppName() + wxT( " " ) + GetBuildVersion();
    title += wxT( " " ) + filename;
    SetTitle( title );

    int response = wxMessageBox( _( "Do you want to make all the foot print fields visible?" ),
                                 _( "Field Display Option" ),
                                 wxYES_NO | wxICON_QUESTION | wxCANCEL, this );

    if( response == wxCANCEL )
        return false;

    if( response == wxYES )
        visible = true;

    file = wxFopen( filename, wxT( "rt" ) );

    if( file == NULL )
    {
        msg.Printf( _( "Failed to open back annotate file <%s>" ), filename.GetData() );
        DisplayError( this, msg );
        return false;
    }

    ProcessStuffFile( file, visible );

    return true;
}