/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2004-2015 Jean-Pierre Charras, jp.charras at wanadoo.fr
 * Copyright (C) 2011 Wayne Stambaugh <stambaughw@gmail.com>
 * Copyright (C) 2016-2023 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 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
 */

#include <string>

#include <confirm.h>
#include <core/arraydim.h>
#include <gestfich.h>
#include <pcb_edit_frame.h>
#include <board_design_settings.h>
#include <3d_viewer/eda_3d_viewer_frame.h>
#include <widgets/msgpanel.h>
#include <fp_lib_table.h>
#include <kiface_base.h>
#include <macros.h>
#include <trace_helpers.h>
#include <lockfile.h>
#include <wx/snglinst.h>
#include <netlist_reader/pcb_netlist.h>
#include <pcbnew_id.h>
#include <io_mgr.h>
#include <wildcards_and_files_ext.h>
#include <tool/tool_manager.h>
#include <board.h>
#include <wx/checkbox.h>
#include <wx/stdpaths.h>
#include <ratsnest/ratsnest_data.h>
#include <kiplatform/app.h>
#include <widgets/appearance_controls.h>
#include <widgets/wx_infobar.h>
#include <widgets/wx_progress_reporters.h>
#include <settings/settings_manager.h>
#include <paths.h>
#include <pgm_base.h>
#include <project/project_file.h>
#include <project/project_local_settings.h>
#include <project/net_settings.h>
#include <plugins/cadstar/cadstar_pcb_archive_plugin.h>
#include <plugins/kicad/pcb_plugin.h>
#include <dialogs/dialog_imported_layers.h>
#include <tools/pcb_actions.h>
#include "footprint_info_impl.h"
#include "board_commit.h"
#include "zone_filler.h"
#include <wx_filename.h>  // For ::ResolvePossibleSymlinks()

#include <kiplatform/io.h>

#include <wx/wupdlock.h>
#include <wx/filedlg.h>
#include <wx/wfstream.h>
#include <wx/txtstrm.h>

#if wxCHECK_VERSION( 3, 1, 7 )
#include "widgets/filedlg_hook_save_project.h"
#else
#include "widgets/legacyfiledlg_save_project.h"
#endif

//#define     USE_INSTRUMENTATION     1
#define     USE_INSTRUMENTATION     0


/**
 * Show a wxFileDialog asking for a #BOARD filename to open.
 *
 * @param aParent is a wxFrame passed to wxFileDialog.
 * @param aCtl is where to put the OpenProjectFiles() control bits.
 * @param aFileName on entry is a probable choice, on return is the chosen filename.
 * @param aKicadFilesOnly true to list KiCad pcb files plugins only, false to list import plugins.
 * @return  true if chosen, else false if user aborted.
 */
bool AskLoadBoardFileName( PCB_EDIT_FRAME* aParent, int* aCtl, wxString* aFileName,
                           bool aKicadFilesOnly )
{
    // This is a subset of all PLUGINs which are trusted to be able to
    // load a BOARD. User may occasionally use the wrong plugin to load a
    // *.brd file (since both legacy and eagle use *.brd extension),
    // but eventually *.kicad_pcb will be more common than legacy *.brd files.

    // clang-format off
    static const struct
    {
        const wxString&     filter;
        IO_MGR::PCB_FILE_T  pluginType;
    } loaders[] =
    {
        // Current Kicad board files.
        { PcbFileWildcard(),                    IO_MGR::KICAD_SEXP },

        // Old Kicad board files.
        { LegacyPcbFileWildcard(),              IO_MGR::LEGACY },

        // Import Altium Circuit Maker board files.
        { AltiumCircuitMakerPcbFileWildcard(),  IO_MGR::ALTIUM_CIRCUIT_MAKER },

        // Import Altium Circuit Studio board files.
        { AltiumCircuitStudioPcbFileWildcard(), IO_MGR::ALTIUM_CIRCUIT_STUDIO },

        // Import Altium Designer board files.
        { AltiumDesignerPcbFileWildcard(),      IO_MGR::ALTIUM_DESIGNER },

        // Import Cadstar PCB Archive board files.
        { CadstarPcbArchiveFileWildcard(),      IO_MGR::CADSTAR_PCB_ARCHIVE },

        // Import Eagle board files.
        { EaglePcbFileWildcard(),               IO_MGR::EAGLE },

        // Import PCAD board files.
        { PCadPcbFileWildcard(),                IO_MGR::PCAD },

        // Import Fabmaster board files.
        { FabmasterPcbFileWildcard(),           IO_MGR::FABMASTER },
    };
    // clang-format on

    wxFileName  fileName( *aFileName );
    wxString    fileFilters;

    if( aKicadFilesOnly )
    {
        std::vector<std::string> fileExtensions;

        for( unsigned ii = 0; ii < 2; ++ii )
        {
            if( !fileFilters.IsEmpty() )
                fileFilters += wxChar( '|' );

            fileFilters += wxGetTranslation( loaders[ii].filter );

            PLUGIN::RELEASER plugin( IO_MGR::PluginFind( loaders[ii].pluginType ) );
            wxCHECK( plugin, false );
            fileExtensions.push_back( plugin->GetFileExtension().ToStdString() );
        }

        fileFilters = _( "All KiCad Board Files" ) + AddFileExtListToFilter( fileExtensions )
                        + wxT( "|" ) + fileFilters;
    }
    else
    {
        wxString allWildcards;

        for( unsigned ii = 2; ii < arrayDim( loaders ); ++ii )
        {
            if( !fileFilters.IsEmpty() )
                fileFilters += wxChar( '|' );

            fileFilters += wxGetTranslation( loaders[ii].filter );

            PLUGIN::RELEASER plugin( IO_MGR::PluginFind( loaders[ii].pluginType ) );
            wxCHECK( plugin, false );
            allWildcards += wxT( "*." ) + formatWildcardExt( plugin->GetFileExtension() ) +
                            wxT( ";" );
        }

        fileFilters = _( "All supported formats" ) + wxT( "|" ) + allWildcards + wxT( "|" ) +
                      fileFilters;
    }


    wxString    path;
    wxString    name;

    if( fileName.FileExists() )
    {
        path = fileName.GetPath();
        name = fileName.GetFullName();
    }
    else
    {
        path = aParent->GetMruPath();

        if( path.IsEmpty() )
            path = PATHS::GetDefaultUserProjectsPath();
        // leave name empty
    }

    wxFileDialog dlg( aParent,
                      aKicadFilesOnly ? _( "Open Board File" ) : _( "Import Non KiCad Board File" ),
                      path, name, fileFilters, wxFD_OPEN | wxFD_FILE_MUST_EXIST );

    if( dlg.ShowModal() == wxID_OK )
    {
        // For import option, if Eagle (*.brd files), tell OpenProjectFiles() to use Eagle plugin.
        // It's the only special case because of the duplicate use of the *.brd file extension.
        // Other cases are clear because of unique file extensions.
        *aCtl = aKicadFilesOnly ? 0 : KICTL_EAGLE_BRD;
        *aFileName = dlg.GetPath();
        aParent->SetMruPath( wxFileName( dlg.GetPath() ).GetPath() );
        return true;
    }
    else
    {
        return false;
    }
}


/**
 * Put up a wxFileDialog asking for a BOARD filename to save.
 *
 * @param aParent is a wxFrame passed to wxFileDialog.
 * @param aFileName on entry is a probable choice, on return is the chosen full filename
 *                  (includes path).
 * @param aCreateProject will be filled with the state of the Create Project? checkbox if relevant.
 * @return true if chosen, else false if user aborted.
 */
bool AskSaveBoardFileName( PCB_EDIT_FRAME* aParent, wxString* aFileName, bool* aCreateProject )
{
    wxString    wildcard =  PcbFileWildcard();
    wxFileName  fn = *aFileName;

    fn.SetExt( KiCadPcbFileExtension );

    wxFileDialog dlg( aParent, _( "Save Board File As" ), fn.GetPath(), fn.GetFullName(), wildcard,
                      wxFD_SAVE | wxFD_OVERWRITE_PROMPT );

// Add a "Create a project" checkbox in standalone mode and one isn't loaded
#if wxCHECK_VERSION( 3, 1, 7 )
    FILEDLG_HOOK_SAVE_PROJECT newProjectHook;

    if( Kiface().IsSingle() && aParent->Prj().IsNullProject() )
        dlg.SetCustomizeHook( newProjectHook );
#else
    if( Kiface().IsSingle() && aParent->Prj().IsNullProject() )
        dlg.SetExtraControlCreator( &LEGACYFILEDLG_SAVE_PROJECT::Create );
#endif


    if( dlg.ShowModal() != wxID_OK )
        return false;

    fn = dlg.GetPath();

    // always enforce filename extension, user may not have entered it.
    fn.SetExt( KiCadPcbFileExtension );

    *aFileName = fn.GetFullPath();

#if wxCHECK_VERSION( 3, 1, 7 )
    if( newProjectHook.IsAttachedToDialog() )
        *aCreateProject = newProjectHook.GetCreateNewProject();
    else if( !aParent->Prj().IsNullProject() )
        *aCreateProject = true;
#else
    if( wxWindow* ec = dlg.GetExtraControl() )
        *aCreateProject = static_cast<LEGACYFILEDLG_SAVE_PROJECT*>( ec )->GetValue();
    else if( !aParent->Prj().IsNullProject() )
        *aCreateProject = true;
#endif

    return true;
}


void PCB_EDIT_FRAME::OnFileHistory( wxCommandEvent& event )
{
    wxString fn = GetFileFromHistory( event.GetId(), _( "Printed circuit board" ) );

    if( !!fn )
    {
        int open_ctl = 0;

        if( !wxFileName::IsFileReadable( fn ) )
        {
            if( !AskLoadBoardFileName( this, &open_ctl, &fn, true ) )
                return;
        }

        OpenProjectFiles( std::vector<wxString>( 1, fn ), open_ctl );
    }
}


void PCB_EDIT_FRAME::OnClearFileHistory( wxCommandEvent& aEvent )
{
    ClearFileHistory();
}


void PCB_EDIT_FRAME::Files_io( wxCommandEvent& event )
{
    int        id = event.GetId();
    Files_io_from_id( id );
}


bool PCB_EDIT_FRAME::Files_io_from_id( int id )
{
    wxString   msg;

    switch( id )
    {
    case ID_LOAD_FILE:
    {
        int         open_ctl = 0;
        wxString    fileName = Prj().AbsolutePath( GetBoard()->GetFileName() );

        return AskLoadBoardFileName( this, &open_ctl, &fileName, true )
                   && OpenProjectFiles( std::vector<wxString>( 1, fileName ), open_ctl );
    }

    case ID_IMPORT_NON_KICAD_BOARD:
    {
        int         open_ctl = 1;
        wxString    fileName; // = Prj().AbsolutePath( GetBoard()->GetFileName() );

        return AskLoadBoardFileName( this, &open_ctl, &fileName, false )
                   && OpenProjectFiles( std::vector<wxString>( 1, fileName ), open_ctl );
    }

    case ID_MENU_RECOVER_BOARD_AUTOSAVE:
    {
        wxFileName currfn = Prj().AbsolutePath( GetBoard()->GetFileName() );
        wxFileName fn = currfn;

        wxString rec_name = GetAutoSaveFilePrefix() + fn.GetName();
        fn.SetName( rec_name );

        if( !fn.FileExists() )
        {
            msg.Printf( _( "Recovery file '%s' not found." ), fn.GetFullPath() );
            DisplayInfoMessage( this, msg );
            return false;
        }

        msg.Printf( _( "OK to load recovery file '%s'?" ), fn.GetFullPath() );

        if( !IsOK( this, msg ) )
            return false;

        GetScreen()->SetContentModified( false );    // do not prompt the user for changes

        if( OpenProjectFiles( std::vector<wxString>( 1, fn.GetFullPath() ) ) )
        {
            // Re-set the name since name or extension was changed
            GetBoard()->SetFileName( currfn.GetFullPath() );
            UpdateTitle();
            return true;
        }

        return false;
    }

    case ID_REVERT_BOARD:
    {
        wxFileName fn = Prj().AbsolutePath( GetBoard()->GetFileName() );

        msg.Printf( _( "Revert '%s' to last version saved?" ), fn.GetFullPath() );

        if( !IsOK( this, msg ) )
            return false;

        GetScreen()->SetContentModified( false );    // do not prompt the user for changes

        ReleaseFile();

        return OpenProjectFiles( std::vector<wxString>( 1, fn.GetFullPath() ) );
    }

    case ID_NEW_BOARD:
    {
        if( IsContentModified() )
        {
            wxFileName fileName = GetBoard()->GetFileName();
            wxString   saveMsg = _( "Current board will be closed, save changes to '%s' before "
                                    "continuing?" );

            if( !HandleUnsavedChanges( this, wxString::Format( saveMsg, fileName.GetFullName() ),
                                       [&]()->bool
                                       {
                                           return Files_io_from_id( ID_SAVE_BOARD );
                                       } ) )
            {
                return false;
            }
        }
        else if( !GetBoard()->IsEmpty() )
        {
            if( !IsOK( this, _( "Current Board will be closed. Continue?" ) ) )
                return false;
        }

        SaveProjectLocalSettings();

        GetBoard()->ClearProject();

        SETTINGS_MANAGER* mgr = GetSettingsManager();
        mgr->UnloadProject( &mgr->Prj() );

        if( !Clear_Pcb( false ) )
            return false;

        LoadProjectSettings();

        onBoardLoaded();

        OnModify();
        return true;
    }

    case ID_SAVE_BOARD:
        if( !GetBoard()->GetFileName().IsEmpty() )
        {
            if( SavePcbFile( Prj().AbsolutePath( GetBoard()->GetFileName() ) ) )
            {
                m_autoSaveRequired = false;
                return true;
            }

            return false;
        }

        KI_FALLTHROUGH;

    case ID_COPY_BOARD_AS:
    case ID_SAVE_BOARD_AS:
    {
        bool     addToHistory = ( id == ID_SAVE_BOARD_AS );
        wxString orig_name;

        wxFileName::SplitPath( GetBoard()->GetFileName(), nullptr, nullptr, &orig_name, nullptr );

        if( orig_name.IsEmpty() )
            orig_name = NAMELESS_PROJECT;

        wxFileName savePath( Prj().GetProjectFullName() );

        if( !savePath.IsOk() || !savePath.IsDirWritable() )
        {
            savePath = GetMruPath();

            if( !savePath.IsOk() || !savePath.IsDirWritable() )
                savePath = PATHS::GetDefaultUserProjectsPath();
        }

        wxFileName  fn( savePath.GetPath(), orig_name, KiCadPcbFileExtension );
        wxString    filename = fn.GetFullPath();
        bool        createProject = false;
        bool        success = false;

        if( AskSaveBoardFileName( this, &filename, &createProject ) )
        {
            if( id == ID_COPY_BOARD_AS )
            {
                success = SavePcbCopy( filename, createProject );
            }
            else
            {
                success = SavePcbFile( filename, addToHistory, createProject );

                if( success )
                    m_autoSaveRequired = false;
            }
        }

        return success;
    }

    default:
        return false;
    }
}


// The KIWAY_PLAYER::OpenProjectFiles() API knows nothing about plugins, so
// determine how to load the BOARD here, with minor assistance from KICTL_EAGLE_BRD
// bit flag.
IO_MGR::PCB_FILE_T plugin_type( const wxString& aFileName, int aCtl )
{
    IO_MGR::PCB_FILE_T  pluginType;

    wxFileName fn = aFileName;

    // Note: file extensions are expected to be in lower case.
    // This is not always true, especially when importing files, so the string
    // comparisons are case insensitive to try to find the suitable plugin.

    if( fn.GetExt().CmpNoCase( IO_MGR::GetFileExtension( IO_MGR::LEGACY ) ) == 0 )
    {
        wxFileInputStream input( aFileName );
        bool is_legacy = true;

        if(input.IsOk() && !input.Eof() )
        {
            wxTextInputStream text( input );
            wxString line = text.ReadLine();

            if( !line.StartsWith( wxT( "PCBNEW" ) ) )
                is_legacy = false;
        }

        // both legacy and eagle share a common file extension.
        pluginType = ( aCtl & KICTL_EAGLE_BRD ) || !is_legacy ? IO_MGR::EAGLE : IO_MGR::LEGACY;
    }
    else if( fn.GetExt().CmpNoCase( IO_MGR::GetFileExtension( IO_MGR::PCAD ) ) == 0 )
    {
        pluginType = IO_MGR::PCAD;
    }
    else if( fn.GetExt().CmpNoCase( IO_MGR::GetFileExtension( IO_MGR::ALTIUM_DESIGNER ) ) == 0 )
    {
        pluginType = IO_MGR::ALTIUM_DESIGNER;
    }
    else if( fn.GetExt().CmpNoCase( IO_MGR::GetFileExtension( IO_MGR::ALTIUM_CIRCUIT_STUDIO ) ) == 0 )
    {
        pluginType = IO_MGR::ALTIUM_CIRCUIT_STUDIO;
    }
    else if( fn.GetExt().CmpNoCase( IO_MGR::GetFileExtension( IO_MGR::ALTIUM_CIRCUIT_MAKER ) ) == 0 )
    {
        pluginType = IO_MGR::ALTIUM_CIRCUIT_MAKER;
    }
    else if( fn.GetExt().CmpNoCase( IO_MGR::GetFileExtension( IO_MGR::CADSTAR_PCB_ARCHIVE ) ) == 0 )
    {
        pluginType = IO_MGR::CADSTAR_PCB_ARCHIVE;
    }
    else if( fn.GetExt().CmpNoCase( IO_MGR::GetFileExtension( IO_MGR::FABMASTER ) ) == 0 )
    {
        pluginType = IO_MGR::FABMASTER;
    }
    else
    {
        pluginType = IO_MGR::KICAD_SEXP;
    }

    return pluginType;
}


int PCB_EDIT_FRAME::inferLegacyEdgeClearance( BOARD* aBoard )
{
    PCB_LAYER_COLLECTOR collector;

    collector.SetLayerId( Edge_Cuts );
    collector.Collect( aBoard, GENERAL_COLLECTOR::AllBoardItems );

    int  edgeWidth = -1;
    bool mixed = false;

    for( int i = 0; i < collector.GetCount(); i++ )
    {
        if( collector[i]->Type() == PCB_SHAPE_T )
        {
            int itemWidth = static_cast<PCB_SHAPE*>( collector[i] )->GetWidth();

            if( edgeWidth != -1 && edgeWidth != itemWidth )
            {
                mixed = true;
                edgeWidth = std::max( edgeWidth, itemWidth );
            }
            else
            {
                edgeWidth = itemWidth;
            }
        }
    }

    if( mixed )
    {
        // If they had different widths then we can't ensure that fills will be the same.
        DisplayInfoMessage( this, _( "If the zones on this board are refilled the Copper Edge Clearance "
                         "setting will be used (see Board Setup > Design Rules > Constraints).\n"
                         "This may result in different fills from previous KiCad versions which "
                         "used the line thicknesses of the board boundary on the Edge Cuts "
                          "layer." ) );
    }

    return std::max( 0, edgeWidth / 2 );
}


bool PCB_EDIT_FRAME::OpenProjectFiles( const std::vector<wxString>& aFileSet, int aCtl )
{
    // This is for python:
    if( aFileSet.size() != 1 )
    {
        UTF8 msg = StrPrintf( "Pcbnew:%s() takes a single filename", __func__ );
        DisplayError( this, msg );
        return false;
    }

    wxString   fullFileName( aFileSet[0] );
    wxFileName wx_filename( fullFileName );
    wxString   msg;

    if( Kiface().IsSingle() )
        KIPLATFORM::APP::RegisterApplicationRestart( fullFileName );

    // We insist on caller sending us an absolute path, if it does not, we say it's a bug.
    wxASSERT_MSG( wx_filename.IsAbsolute(), wxT( "Path is not absolute!" ) );

    std::unique_ptr<LOCKFILE> lock = std::make_unique<LOCKFILE>( fullFileName );

    if( !lock->Valid() && lock->IsLockedByMe() )
    {
        // If we cannot acquire the lock but we appear to be the one who
        // locked it, check to see if there is another KiCad instance running.
        // If there is not, then we can override the lock.  This could happen if
        // KiCad crashed or was interrupted

        if( !Pgm().SingleInstance()->IsAnotherRunning() )
            lock->OverrideLock();
    }

    if( !lock->Valid() )
    {
        msg.Printf( _( "PCB '%s' is already open by '%s' at '%s'." ), wx_filename.GetFullName(),
                lock->GetUsername(), lock->GetHostname() );

        if( !AskOverrideLock( this, msg ) )
            return false;

        lock->OverrideLock();
    }

    if( IsContentModified() )
    {
        if( !HandleUnsavedChanges( this, _( "The current PCB has been modified.  Save changes?" ),
                                   [&]() -> bool
                                   {
                                       return SavePcbFile( GetBoard()->GetFileName() );
                                   } ) )
        {
            return false;
        }
    }

    wxFileName pro = fullFileName;
    pro.SetExt( ProjectFileExtension );

    bool is_new = !wxFileName::IsFileReadable( fullFileName );

    // If its a non-existent schematic and caller thinks it exists
    if( is_new && !( aCtl & KICTL_CREATE ) )
    {
        // notify user that fullFileName does not exist, ask if user wants to create it.
        msg.Printf( _( "PCB '%s' does not exist. Do you wish to create it?" ), fullFileName );

        if( !IsOK( this, msg ) )
            return false;
    }

    // Get rid of any existing warnings about the old board
    GetInfoBar()->Dismiss();

    WX_PROGRESS_REPORTER progressReporter( this, is_new ? _( "Creating PCB" )
                                                        : _( "Loading PCB" ), 1 );

    // No save prompt (we already prompted above), and only reset to a new blank board if new
    Clear_Pcb( false, !is_new );

    IO_MGR::PCB_FILE_T  pluginType = plugin_type( fullFileName, aCtl );

    bool converted =  pluginType != IO_MGR::LEGACY && pluginType != IO_MGR::KICAD_SEXP;

    // Loading a project should only be done under carefully considered circumstances.

    // The calling code should know not to ask me here to change projects unless
    // it knows what consequences that will have on other KIFACEs running and using
    // this same PROJECT.  It can be very harmful if that calling code is stupid.
    SETTINGS_MANAGER* mgr = GetSettingsManager();

    if( pro.GetFullPath() != mgr->Prj().GetProjectFullName() )
    {
        // calls SaveProject
        SaveProjectLocalSettings();

        GetBoard()->ClearProject();
        mgr->UnloadProject( &mgr->Prj() );

        mgr->LoadProject( pro.GetFullPath() );

        // Do not allow saving a project if one doesn't exist.  This normally happens if we are
        // standalone and opening a board that has been moved from its project folder.
        // For converted projects, we don't want to set the read-only flag because we want a project
        // to be saved for the new file in case things like netclasses got migrated.
        Prj().SetReadOnly( !pro.Exists() && !converted );
    }

    // Clear the cache footprint list which may be project specific
    GFootprintList.Clear();

    if( is_new )
    {
        // Link the existing blank board to the new project
        GetBoard()->SetProject( &Prj() );

        GetBoard()->SetFileName( fullFileName );

        OnModify();
    }
    else
    {
        BOARD*           loadedBoard = nullptr;   // it will be set to non-NULL if loaded OK
        PLUGIN::RELEASER pi( IO_MGR::PluginFind( pluginType ) );

        LAYER_REMAPPABLE_PLUGIN* layerRemappablePlugin =
            dynamic_cast< LAYER_REMAPPABLE_PLUGIN* >( (PLUGIN*) pi );

        if( layerRemappablePlugin )
        {
            layerRemappablePlugin->RegisterLayerMappingCallback(
                    std::bind( DIALOG_IMPORTED_LAYERS::GetMapModal, this, std::placeholders::_1 ) );
        }

        // This will rename the file if there is an autosave and the user want to recover
		CheckForAutoSaveFile( fullFileName );

        bool failedLoad = false;

        try
        {
            STRING_UTF8_MAP props;
            char        xbuf[30];
            char        ybuf[30];

            // EAGLE_PLUGIN can use this info to center the BOARD, but it does not yet.
            snprintf( xbuf, sizeof(xbuf), "%d", GetPageSizeIU().x );
            snprintf( ybuf, sizeof(ybuf), "%d", GetPageSizeIU().y );

            props["page_width"]  = xbuf;
            props["page_height"] = ybuf;

            pi->SetQueryUserCallback(
                    [&]( wxString aTitle, int aIcon, wxString aMessage, wxString aAction ) -> bool
                    {
                        KIDIALOG dlg( nullptr, aMessage, aTitle, wxOK | wxCANCEL | aIcon );

                        if( !aAction.IsEmpty() )
                            dlg.SetOKLabel( aAction );

                        dlg.DoNotShowCheckbox( aMessage, 0 );

                        return dlg.ShowModal() == wxID_OK;
                    } );

#if USE_INSTRUMENTATION
            // measure the time to load a BOARD.
            unsigned startTime = GetRunningMicroSecs();
#endif

            loadedBoard = pi->Load( fullFileName, nullptr, &props, &Prj(), &progressReporter );

#if USE_INSTRUMENTATION
            unsigned stopTime = GetRunningMicroSecs();
            printf( "PLUGIN::Load(): %u usecs\n", stopTime - startTime );
#endif
        }
        catch( const FUTURE_FORMAT_ERROR& ffe )
        {
            msg.Printf( _( "Error loading PCB '%s'." ), fullFileName );
            progressReporter.Hide();
            DisplayErrorMessage( this, msg, ffe.Problem() );

            failedLoad = true;
        }
        catch( const IO_ERROR& ioe )
        {
            if( ioe.Problem() != wxT( "CANCEL" ) )
            {
                msg.Printf( _( "Error loading PCB '%s'." ), fullFileName );
                progressReporter.Hide();
                DisplayErrorMessage( this, msg, ioe.What() );
            }

            failedLoad = true;
        }
        catch( const std::bad_alloc& )
        {
            msg.Printf( _( "Memory exhausted loading PCB '%s'" ), fullFileName );
            progressReporter.Hide();
            DisplayErrorMessage( this, msg, wxEmptyString );

            failedLoad = true;
        }

        if( failedLoad )
        {
            // We didn't create a new blank board above, so do that now
            Clear_Pcb( false );

            return false;
        }

        // This fixes a focus issue after the progress reporter is done on GTK.  It shouldn't
        // cause any issues on macOS and Windows.  If it does, it will have to be conditionally
        // compiled.
        Raise();

        // Skip (possibly expensive) connectivity build here; we build it below after load
        SetBoard( loadedBoard, false, &progressReporter );

        if( GFootprintList.GetCount() == 0 )
            GFootprintList.ReadCacheFromFile( Prj().GetProjectPath() + wxT( "fp-info-cache" ) );

        if( loadedBoard->m_LegacyDesignSettingsLoaded )
        {
            Prj().SetReadOnly( false );

            // Before we had a copper edge clearance setting, the edge line widths could be used
            // as a kludge to control them.  So if there's no setting then infer it from the
            // edge widths.
            if( !loadedBoard->m_LegacyCopperEdgeClearanceLoaded )
            {
                int edgeClearance = inferLegacyEdgeClearance( loadedBoard );
                loadedBoard->GetDesignSettings().m_CopperEdgeClearance = edgeClearance;
            }

            // On save; design settings will be removed from the board
            loadedBoard->SetModified();
        }

        // Move legacy view settings to local project settings
        if( !loadedBoard->m_LegacyVisibleLayers.test( Rescue ) )
        {
            Prj().GetLocalSettings().m_VisibleLayers = loadedBoard->m_LegacyVisibleLayers;
            loadedBoard->SetModified();
        }

        if( !loadedBoard->m_LegacyVisibleItems.test( GAL_LAYER_INDEX( GAL_LAYER_ID_BITMASK_END ) ) )
        {
            Prj().GetLocalSettings().m_VisibleItems = loadedBoard->m_LegacyVisibleItems;
            loadedBoard->SetModified();
        }

        // we should not ask PLUGINs to do these items:
        loadedBoard->BuildListOfNets();
        ResolveDRCExclusions( true );
        m_toolManager->RunAction( PCB_ACTIONS::repairBoard, true, true);

        if( loadedBoard->IsModified() )
            OnModify();
        else
            GetScreen()->SetContentModified( false );

        if( ( pluginType == IO_MGR::LEGACY )
         || ( pluginType == IO_MGR::KICAD_SEXP
                && loadedBoard->GetFileFormatVersionAtLoad() < SEXPR_BOARD_FILE_VERSION
                && loadedBoard->GetGenerator().Lower() != wxT( "gerbview" ) ) )
        {
            m_infoBar->RemoveAllButtons();
            m_infoBar->AddCloseButton();
            m_infoBar->ShowMessage( _( "This file was created by an older version of KiCad. "
                                       "It will be converted to the new format when saved." ),
                                    wxICON_WARNING, WX_INFOBAR::MESSAGE_TYPE::OUTDATED_SAVE );
        }

        // Import footprints into a project-specific library
        //==================================================
        // TODO: This should be refactored out of here into somewhere specific to the Project Import
        // E.g. KICAD_MANAGER_FRAME::ImportNonKiCadProject
        if( aCtl & KICTL_IMPORT_LIB )
        {
            wxFileName loadedBoardFn( fullFileName );
            wxString   libNickName = loadedBoardFn.GetName();

            // Extract a footprint library from the design and add it to the fp-lib-table
            // The footprints are saved in a new .pretty library.
            // If this library already exists, all previous footprints will be deleted
            std::vector<FOOTPRINT*> loadedFootprints = pi->GetImportedCachedLibraryFootprints();
            wxString                newLibPath = CreateNewProjectLibrary( libNickName );

            // Only create the new library if CreateNewLibrary succeeded (note that this fails if
            // the library already exists and the user aborts after seeing the warning message
            // which prompts the user to continue with overwrite or abort)
            if( newLibPath.Length() > 0 )
            {
                PLUGIN::RELEASER piSexpr( IO_MGR::PluginFind( IO_MGR::KICAD_SEXP ) );

                for( FOOTPRINT* footprint : loadedFootprints )
                {
                    try
                    {
                        if( !footprint->GetFPID().GetLibItemName().empty() ) // Handle old boards.
                        {
                            footprint->SetReference( "REF**" );
                            piSexpr->FootprintSave( newLibPath, footprint );
                            delete footprint;
                        }
                    }
                    catch( const IO_ERROR& ioe )
                    {
                        wxLogError( _( "Error saving footprint %s to project specific library." )
                                    + wxS( "\n%s" ),
                                    footprint->GetFPID().GetUniStringLibItemName(),
                                    ioe.What() );
                    }
                }

                FP_LIB_TABLE*   prjlibtable = Prj().PcbFootprintLibs();
                const wxString& project_env = PROJECT_VAR_NAME;
                wxString        rel_path, env_path;

                wxASSERT_MSG( wxGetEnv( project_env, &env_path ),
                              wxT( "There is no project variable?" ) );

                wxString result( newLibPath );

                if( result.Replace( env_path, wxT( "$(" ) + project_env + wxT( ")" ) ) )
                    rel_path = result;

                FP_LIB_TABLE_ROW* row = new FP_LIB_TABLE_ROW( libNickName, rel_path,
                                                              wxT( "KiCad" ), wxEmptyString );
                prjlibtable->InsertRow( row );

                wxString tblName = Prj().FootprintLibTblName();

                try
                {
                    Prj().PcbFootprintLibs()->Save( tblName );
                }
                catch( const IO_ERROR& ioe )
                {
                    wxLogError( _( "Error saving project specific footprint library table." )
                                + wxS( "\n%s" ),
                                ioe.What() );
                }

                // Update footprint LIB_IDs to point to the just imported library
                for( FOOTPRINT* footprint : GetBoard()->Footprints() )
                {
                    LIB_ID libId = footprint->GetFPID();

                    if( libId.GetLibItemName().empty() )
                        continue;

                    libId.SetLibNickname( libNickName );
                    footprint->SetFPID( libId );
                }
            }
        }
    }

    {
        wxFileName fn = fullFileName;

        if( converted )
            fn.SetExt( PcbFileExtension );

        wxString fname = fn.GetFullPath();

        fname.Replace( WIN_STRING_DIR_SEP, UNIX_STRING_DIR_SEP );

        GetBoard()->SetFileName( fname );
    }

    // Lock the file newly opened:
    m_file_checker.reset( lock.release() );

    if( !converted )
        UpdateFileHistory( GetBoard()->GetFileName() );

    std::vector<ZONE*> toFill;

    // Rebuild list of nets (full ratsnest rebuild)
    GetBoard()->BuildConnectivity( &progressReporter );

    // Load project settings after setting up board; some of them depend on the nets list
    LoadProjectSettings();

    // Syncs the UI (appearance panel, etc) with the loaded board and project
    onBoardLoaded();

    // Refresh the 3D view, if any
    EDA_3D_VIEWER_FRAME* draw3DFrame = Get3DViewerFrame();

    if( draw3DFrame )
        draw3DFrame->NewDisplay();
#if 0 && defined(DEBUG)
    // Output the board object tree to stdout, but please run from command prompt:
    GetBoard()->Show( 0, std::cout );
#endif

    // from EDA_APPL which was first loaded BOARD only:
    {
        /* For an obscure reason the focus is lost after loading a board file
         * when starting up the process.
         * (seems due to the recreation of the layer manager after loading the file)
         * Give focus to main window and Drawpanel
         * must be done for these 2 windows (for an obscure reason ...)
         * Linux specific
         * This is more a workaround than a fix.
         */
        SetFocus();
        GetCanvas()->SetFocus();
    }

    return true;
}


bool PCB_EDIT_FRAME::SavePcbFile( const wxString& aFileName, bool addToHistory,
                                  bool aChangeProject )
{
    // please, keep it simple.  prompting goes elsewhere.
    wxFileName pcbFileName = aFileName;

    if( pcbFileName.GetExt() == LegacyPcbFileExtension )
        pcbFileName.SetExt( KiCadPcbFileExtension );

    // Write through symlinks, don't replace them
    WX_FILENAME::ResolvePossibleSymlinks( pcbFileName );

    if( !IsWritable( pcbFileName ) )
    {
        wxString msg = wxString::Format( _( "Insufficient permissions to write file '%s'." ),
                                         pcbFileName.GetFullPath() );

        DisplayError( this, msg );
        return false;
    }

    // TODO: these will break if we ever go multi-board
    wxFileName projectFile( pcbFileName );
    wxFileName rulesFile( pcbFileName );
    wxString   msg;

    projectFile.SetExt( ProjectFileExtension );
    rulesFile.SetExt( DesignRulesFileExtension );

    if( projectFile.FileExists() )
    {
        GetSettingsManager()->SaveProject();
    }
    else if( aChangeProject )
    {
        Prj().SetReadOnly( false );
        GetSettingsManager()->SaveProjectAs( projectFile.GetFullPath() );
    }

    wxFileName currentRules( GetDesignRulesPath() );

    if( currentRules.FileExists() && !rulesFile.FileExists() && aChangeProject )
        KiCopyFile( currentRules.GetFullPath(), rulesFile.GetFullPath(), msg );

    if( !msg.IsEmpty() )
    {
        DisplayError( this, wxString::Format( _( "Error saving custom rules file '%s'." ),
                                              rulesFile.GetFullPath() ) );
    }

    if( projectFile.FileExists() )
    {
        // Save various DRC parameters, such as violation severities (which may have been
        // edited via the DRC dialog as well as the Board Setup dialog), DRC exclusions, etc.
        saveProjectSettings();

        GetBoard()->SynchronizeProperties();
        GetBoard()->SynchronizeNetsAndNetClasses( false );
    }

    wxString   tempFile = wxFileName::CreateTempFileName( wxS( "pcbnew" ) );
    wxString   upperTxt;
    wxString   lowerTxt;

    try
    {
        PLUGIN::RELEASER    pi( IO_MGR::PluginFind( IO_MGR::KICAD_SEXP ) );

        pi->Save( tempFile, GetBoard(), nullptr );
    }
    catch( const IO_ERROR& ioe )
    {
        DisplayError( this, wxString::Format( _( "Error saving board file '%s'.\n%s" ),
                                              pcbFileName.GetFullPath(),
                                              ioe.What() ) );

        lowerTxt.Printf( _( "Failed to create temporary file '%s'." ), tempFile );

        SetMsgPanel( upperTxt, lowerTxt );

        // In case we started a file but didn't fully write it, clean up
        wxRemoveFile( tempFile );

        return false;
    }

    // Preserve the permissions of the current file
    KIPLATFORM::IO::DuplicatePermissions( pcbFileName.GetFullPath(), tempFile );

    // If save succeeded, replace the original with what we just wrote
    if( !wxRenameFile( tempFile, pcbFileName.GetFullPath() ) )
    {
        DisplayError( this, wxString::Format( _( "Error saving board file '%s'.\n"
                                                 "Failed to rename temporary file '%s." ),
                                              pcbFileName.GetFullPath(),
                                              tempFile ) );

        lowerTxt.Printf( _( "Failed to rename temporary file '%s'." ),
                         tempFile );

        SetMsgPanel( upperTxt, lowerTxt );

        return false;
    }

    if( !Kiface().IsSingle() )
    {
        WX_STRING_REPORTER backupReporter( &upperTxt );

        if( GetSettingsManager()->TriggerBackupIfNeeded( backupReporter ) )
            upperTxt.clear();
    }

    GetBoard()->SetFileName( pcbFileName.GetFullPath() );

    // Update the lock in case it was a Save As
    LockFile( pcbFileName.GetFullPath() );

    // Put the saved file in File History if requested
    if( addToHistory )
        UpdateFileHistory( GetBoard()->GetFileName() );

    // Delete auto save file on successful save.
    wxFileName autoSaveFileName = pcbFileName;

    autoSaveFileName.SetName( GetAutoSaveFilePrefix() + pcbFileName.GetName() );

    if( autoSaveFileName.FileExists() )
        wxRemoveFile( autoSaveFileName.GetFullPath() );

    lowerTxt.Printf( _( "File '%s' saved." ), pcbFileName.GetFullPath() );

    SetStatusText( lowerTxt, 0 );

    // Get rid of the old version conversion warning, or any other dismissable warning :)
    if( m_infoBar->GetMessageType() == WX_INFOBAR::MESSAGE_TYPE::OUTDATED_SAVE )
        m_infoBar->Dismiss();

    if( m_infoBar->IsShown() && m_infoBar->HasCloseButton() )
        m_infoBar->Dismiss();

    GetScreen()->SetContentModified( false );
    UpdateTitle();
    return true;
}


bool PCB_EDIT_FRAME::SavePcbCopy( const wxString& aFileName, bool aCreateProject )
{
    wxFileName  pcbFileName = aFileName;

    // Ensure the file ext is the right ext:
    pcbFileName.SetExt( KiCadPcbFileExtension );

    if( !IsWritable( pcbFileName ) )
    {
        DisplayError( this, wxString::Format( _( "Insufficient permissions to write file '%s'." ),
                                              pcbFileName.GetFullPath() ) );
        return false;
    }

    // Save various DRC parameters, such as violation severities (which may have been
    // edited via the DRC dialog as well as the Board Setup dialog), DRC exclusions, etc.
    SaveProjectLocalSettings();

    GetBoard()->SynchronizeNetsAndNetClasses( false );

    try
    {
        PLUGIN::RELEASER    pi( IO_MGR::PluginFind( IO_MGR::KICAD_SEXP ) );

        wxASSERT( pcbFileName.IsAbsolute() );

        pi->Save( pcbFileName.GetFullPath(), GetBoard(), nullptr );
    }
    catch( const IO_ERROR& ioe )
    {
        DisplayError( this, wxString::Format( _( "Error saving board file '%s'.\n%s" ),
                                              pcbFileName.GetFullPath(),
                                              ioe.What() ) );

        return false;
    }

    wxFileName projectFile( pcbFileName );
    wxFileName rulesFile( pcbFileName );
    wxString   msg;

    projectFile.SetExt( ProjectFileExtension );
    rulesFile.SetExt( DesignRulesFileExtension );

    if( aCreateProject && !projectFile.FileExists() )
        GetSettingsManager()->SaveProjectCopy( projectFile.GetFullPath() );

    wxFileName currentRules( GetDesignRulesPath() );

    if( aCreateProject && currentRules.FileExists() && !rulesFile.FileExists() )
        KiCopyFile( currentRules.GetFullPath(), rulesFile.GetFullPath(), msg );

    if( !msg.IsEmpty() )
    {
        DisplayError( this, wxString::Format( _( "Error saving custom rules file '%s'." ),
                                              rulesFile.GetFullPath() ) );
    }

    DisplayInfoMessage( this, wxString::Format( _( "Board copied to:\n%s" ),
                                                pcbFileName.GetFullPath() ) );

    return true;
}


bool PCB_EDIT_FRAME::doAutoSave()
{
    wxFileName tmpFileName;

    // Don't run autosave if content has not been modified
    if( !IsContentModified() )
        return true;

    wxString title = GetTitle();    // Save frame title, that can be modified by the save process

    if( GetBoard()->GetFileName().IsEmpty() )
    {
        tmpFileName = wxFileName( PATHS::GetDefaultUserProjectsPath(), NAMELESS_PROJECT,
                                  KiCadPcbFileExtension );
        GetBoard()->SetFileName( tmpFileName.GetFullPath() );
    }
    else
    {
        tmpFileName = Prj().AbsolutePath( GetBoard()->GetFileName() );
    }

    wxFileName autoSaveFileName = tmpFileName;

    // Auto save file name is the board file name prepended with autosaveFilePrefix string.
    autoSaveFileName.SetName( GetAutoSaveFilePrefix() + autoSaveFileName.GetName() );

    if( !autoSaveFileName.IsOk() )
        return false;

    // If the board file path is not writable, try writing to a platform specific temp file
    // path.  If that path isn't writable, give up.
    if( !autoSaveFileName.IsDirWritable() )
    {
        autoSaveFileName.SetPath( wxFileName::GetTempDir() );

        if( !autoSaveFileName.IsOk() || !autoSaveFileName.IsDirWritable() )
            return false;
    }

    wxLogTrace( traceAutoSave,
                wxT( "Creating auto save file <" ) + autoSaveFileName.GetFullPath() + wxT( ">" ) );

    if( SavePcbFile( autoSaveFileName.GetFullPath(), false, false ) )
    {
        GetScreen()->SetContentModified();
        GetBoard()->SetFileName( tmpFileName.GetFullPath() );
        UpdateTitle();
        m_autoSaveRequired = false;
        m_autoSavePending = false;

        if( !Kiface().IsSingle() &&
            GetSettingsManager()->GetCommonSettings()->m_Backup.backup_on_autosave )
        {
            GetSettingsManager()->TriggerBackupIfNeeded( NULL_REPORTER::GetInstance() );
        }

        SetTitle( title );      // Restore initial frame title

        return true;
    }

    GetBoard()->SetFileName( tmpFileName.GetFullPath() );

    SetTitle( title );      // Restore initial frame title

    return false;
}


bool PCB_EDIT_FRAME::importFile( const wxString& aFileName, int aFileType )
{
    switch( (IO_MGR::PCB_FILE_T) aFileType )
    {
    case IO_MGR::CADSTAR_PCB_ARCHIVE:
    case IO_MGR::EAGLE:
        return OpenProjectFiles( std::vector<wxString>( 1, aFileName ),
                                 KICTL_EAGLE_BRD | KICTL_IMPORT_LIB );

    default:
        return false;
    }

    return false;
}