/*
 * 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 Wayne Stambaugh <stambaughw@gmail.com>
 * Copyright (C) 1992-2021 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
 */

/**
 * @file gestfich.cpp
 * @brief Functions for file management
 */

#include <wx/mimetype.h>
#include <wx/filename.h>
#include <wx/dir.h>

#include <pgm_base.h>
#include <confirm.h>
#include <core/arraydim.h>
#include <gestfich.h>
#include <string_utils.h>
#include <launch_ext.h>
#include "wx/tokenzr.h"

#include <filesystem>

void QuoteString( wxString& string )
{
    if( !string.StartsWith( wxT( "\"" ) ) )
    {
        string.Prepend ( wxT( "\"" ) );
        string.Append ( wxT( "\"" ) );
    }
}


wxString FindKicadFile( const wxString& shortname )
{
    // Test the presence of the file in the directory shortname of
    // the KiCad binary path.
#ifndef __WXMAC__
    wxString fullFileName = Pgm().GetExecutablePath() + shortname;
#else
    wxString fullFileName = Pgm().GetExecutablePath() + wxT( "Contents/MacOS/" ) + shortname;
#endif
    if( wxFileExists( fullFileName ) )
        return fullFileName;

    if( wxGetEnv( wxT( "KICAD_RUN_FROM_BUILD_DIR" ), nullptr ) )
    {
        wxFileName buildDir( Pgm().GetExecutablePath(), shortname );
        buildDir.RemoveLastDir();
#ifndef __WXMSW__
        buildDir.AppendDir( shortname );
#else
        buildDir.AppendDir( shortname.BeforeLast( '.' ) );
#endif

        if( buildDir.GetDirs().Last() == "pl_editor" )
        {
            buildDir.RemoveLastDir();
            buildDir.AppendDir( "pagelayout_editor" );
        }

        if( wxFileExists( buildDir.GetFullPath() ) )
            return buildDir.GetFullPath();
    }

    // Test the presence of the file in the directory shortname
    // defined by the environment variable KiCad.
    if( Pgm().IsKicadEnvVariableDefined() )
    {
        fullFileName = Pgm().GetKicadEnvVariable() + shortname;

        if( wxFileExists( fullFileName ) )
            return fullFileName;
    }

#if defined( __WINDOWS__ )
    // kicad can be installed highly portably on Windows, anywhere and concurrently
    // either the "kicad file" is immediately adjacent to the exe or it's not a valid install
    return shortname;
#else

    // Path list for KiCad binary files
    const static wxChar* possibilities[] = {
#if defined( __WXMAC__ )
        // all internal paths are relative to main bundle kicad.app
        wxT( "Contents/Applications/pcbnew.app/Contents/MacOS/" ),
        wxT( "Contents/Applications/eeschema.app/Contents/MacOS/" ),
        wxT( "Contents/Applications/gerbview.app/Contents/MacOS/" ),
        wxT( "Contents/Applications/bitmap2component.app/Contents/MacOS/" ),
        wxT( "Contents/Applications/pcb_calculator.app/Contents/MacOS/" ),
        wxT( "Contents/Applications/pl_editor.app/Contents/MacOS/" ),
#else
        wxT( "/usr/bin/" ),
        wxT( "/usr/local/bin/" ),
        wxT( "/usr/local/kicad/bin/" ),
#endif
    };

    // find binary file from possibilities list:
    for( unsigned i=0;  i<arrayDim(possibilities);  ++i )
    {
#ifndef __WXMAC__
        fullFileName = possibilities[i] + shortname;
#else
        // make relative paths absolute
        fullFileName = Pgm().GetExecutablePath() + possibilities[i] + shortname;
#endif

        if( wxFileExists( fullFileName ) )
            return fullFileName;
    }

    return shortname;

#endif
}


int ExecuteFile( const wxString& aEditorName, const wxString& aFileName, wxProcess *aCallback )
{
    wxString              fullEditorName;
    std::vector<wxString> params;

#ifdef __UNIX__
    wxString param;
    bool     inSingleQuotes = false;
    bool     inDoubleQuotes = false;

    auto pushParam =
            [&]()
            {
                if( !param.IsEmpty() )
                {
                    params.push_back( param );
                    param.clear();
                }
            };

    for( wxUniChar ch : aEditorName )
    {
        if( inSingleQuotes )
        {
            if( ch == '\'' )
            {
                pushParam();
                inSingleQuotes = false;
                continue;
            }
            else
            {
                param += ch;
            }
        }
        else if( inDoubleQuotes )
        {
            if( ch == '"' )
            {
                pushParam();
                inDoubleQuotes = false;
            }
            else
            {
                param += ch;
            }
        }
        else if( ch == '\'' )
        {
            pushParam();
            inSingleQuotes = true;
        }
        else if( ch == '"' )
        {
            pushParam();
            inDoubleQuotes = true;
        }
        else if( ch == ' ' )
        {
            pushParam();
        }
        else
        {
            param += ch;
        }
    }

    pushParam();

    fullEditorName = FindKicadFile( params[0] );
    params.erase( params.begin() );
#else
    fullEditorName = FindKicadFile( aEditorName );
#endif

    if( wxFileExists( fullEditorName ) )
    {
        std::vector<const wchar_t*> args;

        args.emplace_back( fullEditorName.wc_str() );

        if( !params.empty() )
        {
            for( const wxString& p : params )
                args.emplace_back( p.wc_str() );
        }

        if( !aFileName.IsEmpty() )
            args.emplace_back( aFileName.wc_str() );

        args.emplace_back( nullptr );

        return wxExecute( const_cast<wchar_t**>( args.data() ), wxEXEC_ASYNC, aCallback );
    }

    wxString msg;
    msg.Printf( _( "Command '%s' could not be found." ), fullEditorName );
    DisplayError( nullptr, msg, 20 );
    return -1;
}


bool OpenPDF( const wxString& file )
{
    wxString msg;
    wxString filename = file;

    Pgm().ReadPdfBrowserInfos();

    if( Pgm().UseSystemPdfBrowser() )
    {
        if( !LaunchExternal( filename ) )
        {
            msg.Printf( _( "Unable to find a PDF viewer for '%s'." ), filename );
            DisplayError( nullptr, msg );
            return false;
        }
    }
    else
    {
        const wchar_t* args[3];

        args[0] = Pgm().GetPdfBrowserName().wc_str();
        args[1] = filename.wc_str();
        args[2] = nullptr;

        if( wxExecute( const_cast<wchar_t**>( args ) ) == -1 )
        {
            msg.Printf( _( "Problem while running the PDF viewer '%s'." ), args[0] );
            DisplayError( nullptr, msg );
            return false;
        }
    }

    return true;
}


void OpenFile( const wxString& file )
{
    wxFileName  fileName( file );
    wxFileType* filetype = wxTheMimeTypesManager->GetFileTypeFromExtension( fileName.GetExt() );

    if( !filetype )
        return;

    wxString    command;
    wxFileType::MessageParameters params( file );

    filetype->GetOpenCommand( &command, params );
    delete filetype;

    if( !command.IsEmpty() )
        wxExecute( command );
}


void KiCopyFile( const wxString& aSrcPath, const wxString& aDestPath, wxString& aErrors )
{
    if( !wxCopyFile( aSrcPath, aDestPath ) )
    {
        wxString msg;

        if( !aErrors.IsEmpty() )
            aErrors += "\n";

        msg.Printf( _( "Cannot copy file '%s'." ), aDestPath );
        aErrors += msg;
    }
}


wxString QuoteFullPath( wxFileName& fn, wxPathFormat format )
{
    return wxT( "\"" ) + fn.GetFullPath( format ) + wxT( "\"" );
}


bool RmDirRecursive( const wxString& aFileName, wxString* aErrors )
{
    namespace fs = std::filesystem;

    std::string rmDir = aFileName.ToStdString();

    if( rmDir.length() < 3 )
    {
        if( aErrors )
            *aErrors = _( "Invalid directory name, cannot remove root" );

        return false;
    }

    if( !fs::exists( rmDir ) )
    {
        if( aErrors )
            *aErrors = wxString::Format( _( "Directory '%s' does not exist" ), aFileName );

        return false;
    }

    fs::path path( rmDir );

    if( !fs::is_directory( path ) )
    {
        if( aErrors )
            *aErrors = wxString::Format( _( "'%s' is not a directory" ), aFileName );

        return false;
    }

    try
    {
        fs::remove_all( path );
    }
    catch( const fs::filesystem_error& e )
    {
        if( aErrors )
            *aErrors = wxString::Format( _( "Error removing directory '%s': %s" ), aFileName, e.what() );

        return false;
    }

    return true;
}