/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright The KiCad Developers, see AUTHORS.txt for contributors.
 * Author: SYSUEric <jzzhuang666@gmail.com>.
 *
 * 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, see <http://www.gnu.org/licenses/>.
 */

#include <string>
#include <algorithm>
#include <locale>
#include "odb_util.h"
#include <wx/chartype.h>
#include <wx/dir.h>
#include <wx/regex.h>
#include "idf_helpers.h"
#include "odb_defines.h"
#include "pcb_io_odbpp.h"

namespace ODB
{

wxString GenODBString( const wxString& aStr )
{
    wxString str;

    for( size_t ii = 0; ii < aStr.Len(); ++ii )
    {
        // Rule: we can only use the standard ASCII, control excluded
        wxUniChar ch = aStr[ii];

        if( ch > 126 || !std::isgraph( static_cast<unsigned char>( ch ) ) )
            ch = '?';

        str += ch;
    }

    // Rule: only uppercase
    str.MakeUpper();

    return str;
}


wxString GenLegalNetName( const wxString& aStr )
{
    std::string str = aStr.ToStdString();
    wxString    out;
    out.reserve( str.size() );

    for( auto c : str )
    {
        if( ( c >= 33 && c <= 126 ) && c != ';' )
        {
            out.append( 1, c );
        }
        else
        {
            out.append( 1, '_' ); // Replace invalid characters with underscore
        }
    }

    return out;
}


// The names of these ODB++ entities must comply with
// the rules for legal entity names:
// product, model, step, layer, symbol, and attribute.
wxString GenLegalEntityName( const wxString& aStr )
{
    std::string str = aStr.ToStdString();
    wxString    out;
    out.reserve( str.size() );

    for( auto c : str )
    {
        if( isalpha( c ) )
            c = tolower( c );
        else if( isdigit( c ) || c == '-' || c == '_' || c == '+' || c == '.' )
            ;
        else
            c = '_';

        out.append( 1, c );
    }

    if( out.length() > 64 )
    {
        out.Truncate( 64 );
    }

    while( !out.IsEmpty() && ( out[0] == '.' || out[0] == '-' || out[0] == '+' ) )
    {
        out.erase( 0, 1 );
    }

    while( !out.IsEmpty() && out.Last() == '.' )
    {
        out.RemoveLast();
    }

    return out;
}


void RemoveWhitespace( wxString& aStr )
{
    aStr.Trim().Trim( false );
    wxRegEx spaces( "\\s" );
    spaces.Replace( &aStr, "_" );
}


wxString Double2String( double aVal )
{
    // We don't want to output -0.0 as this value is just 0 for fabs
    if( aVal == -0.0 )
        aVal = 0.0;

    wxString str = wxString::FromCDouble( aVal, PCB_IO_ODBPP::m_sigfig );

    // Remove all but the last trailing zeros from str
    while( str.EndsWith( wxT( "00" ) ) )
        str.RemoveLast();

    return str;
}


std::string Double2String( double aVal, int32_t aDigits )
{
    // We don't want to output -0.0 as this value is just 0 for fabs
    if( aVal == -0.0 )
        aVal = 0.0;

    wxString str = wxString::FromCDouble( aVal, aDigits );

    return str.ToStdString();
}


wxString SymDouble2String( double aVal )
{
    return Double2String( PCB_IO_ODBPP::m_symbolScale * aVal );
}


wxString Data2String( double aVal )
{
    return Double2String( PCB_IO_ODBPP::m_scale * aVal );
}


std::pair<wxString, wxString> AddXY( const VECTOR2I& aVec )
{
    // TODO: to deal with user preference x y increment setting
    std::pair<wxString, wxString> xy =
            std::pair<wxString, wxString>( Double2String( PCB_IO_ODBPP::m_scale * aVec.x ),
                                           Double2String( -PCB_IO_ODBPP::m_scale * aVec.y ) );

    return xy;
}


VECTOR2I GetShapePosition( const PCB_SHAPE& aShape )
{
    VECTOR2D pos{};

    switch( aShape.GetShape() )
    {
    // Rectangles in KiCad are mapped by their corner while ODBPP uses the center
    case SHAPE_T::RECTANGLE:
        pos = aShape.GetPosition()
              + VECTOR2I( aShape.GetRectangleWidth() / 2.0, aShape.GetRectangleHeight() / 2.0 );
        break;
    // Both KiCad and ODBPP use the center of the circle
    case SHAPE_T::CIRCLE:
    // KiCad uses the exact points on the board
    case SHAPE_T::POLY:
    case SHAPE_T::BEZIER:
    case SHAPE_T::SEGMENT:
    case SHAPE_T::ARC:
    case SHAPE_T::UNDEFINED:
        pos = aShape.GetPosition();
        break;
    }

    return pos;
}
} // namespace ODB


void ODB_TREE_WRITER::CreateEntityDirectory( const wxString& aPareDir,
                                             const wxString& aSubDir /*= wxEmptyString*/ )
{
    wxFileName path = wxFileName::DirName( aPareDir );

    wxArrayString subDirs = wxFileName::DirName( aSubDir.Lower() ).GetDirs();

    for( size_t i = 0; i < subDirs.GetCount(); i++ )
        path.AppendDir( subDirs[i] );

    if( !path.DirExists() )
    {
        if( !path.Mkdir( wxS_DIR_DEFAULT, wxPATH_MKDIR_FULL ) )
        {
            throw( std::runtime_error( "Could not create directory" + path.GetPath() ) );
        }
    }

    m_currentPath = path.GetPath();
}


ODB_FILE_WRITER::ODB_FILE_WRITER( ODB_TREE_WRITER& aTreeWriter, const wxString& aFileName ) :
        m_treeWriter( aTreeWriter )
{
    CreateFile( aFileName );
}


void ODB_FILE_WRITER::CreateFile( const wxString& aFileName )
{
    if( aFileName.IsEmpty() || m_treeWriter.GetCurrentPath().IsEmpty() )
        return;

    wxFileName fn;
    fn.SetPath( m_treeWriter.GetCurrentPath() );
    fn.SetFullName( aFileName );

    wxString dirPath = fn.GetPath();

    if( !wxDir::Exists( dirPath ) )
    {
        if( !wxDir::Make( dirPath ) )
            throw( std::runtime_error( "Could not create directory" + dirPath ) );
    }

    if( !fn.IsDirWritable() || ( fn.Exists() && !fn.IsFileWritable() ) )
        return;

    if( m_ostream.is_open() )
        m_ostream.close();

    m_ostream.open( TO_UTF8( fn.GetFullPath() ),
                    std::ios_base::out | std::ios_base::trunc | std::ios_base::binary );

    m_ostream.imbue( std::locale::classic() );

    if( !m_ostream.is_open() || !m_ostream.good() )
        throw std::runtime_error( "Failed to open file: " + fn.GetFullPath() );
}


bool ODB_FILE_WRITER::CloseFile()
{
    if( m_ostream.is_open() )
    {
        m_ostream.close();

        if( !m_ostream.good() )
        {
            throw std::runtime_error( "close file failed" );
            return false;
        }
    }

    return true;
}


void ODB_TEXT_WRITER::WriteEquationLine( const std::string& var, int value )
{
    WriteIndent();
    m_ostream << var << "=" << value << std::endl;
}


void ODB_TEXT_WRITER::WriteEquationLine( const wxString& var, const wxString& value )
{
    WriteIndent();
    m_ostream << var << "=" << value << std::endl;
}


void ODB_TEXT_WRITER::WriteIndent()
{
    if( in_array )
        m_ostream << "    ";
}


void ODB_TEXT_WRITER::BeginArray( const std::string& a )
{
    if( in_array )
        throw std::runtime_error( "already in array" );
    in_array = true;
    m_ostream << a << " {" << std::endl;
}


void ODB_TEXT_WRITER::EndArray()
{
    if( !in_array )
        throw std::runtime_error( "not in array" );
    in_array = false;
    m_ostream << "}" << std::endl << std::endl;
}


ODB_TEXT_WRITER::ARRAY_PROXY::ARRAY_PROXY( ODB_TEXT_WRITER& aWriter, const std::string& aStr ) :
        m_writer( aWriter )
{
    m_writer.BeginArray( aStr );
}


ODB_TEXT_WRITER::ARRAY_PROXY::~ARRAY_PROXY()
{
    m_writer.EndArray();
}


ODB_DRILL_TOOLS::ODB_DRILL_TOOLS( const wxString& aUnits, const wxString& aThickness,
                                  const wxString& aUserParams ) :
        m_units( aUnits ), m_thickness( aThickness ), m_userParams( aUserParams )
{
}


void ODB_DRILL_TOOLS::GenerateFile( std::ostream& aStream )
{
    ODB_TEXT_WRITER twriter( aStream );

    twriter.WriteEquationLine( "UNITS", m_units );
    twriter.WriteEquationLine( "THICKNESS", m_thickness );
    twriter.WriteEquationLine( "USER_PARAMS", m_userParams );

    for( const auto& tool : m_tools )
    {
        const auto array_proxy = twriter.MakeArrayProxy( "TOOLS" );
        twriter.WriteEquationLine( "NUM", tool.m_num );
        twriter.WriteEquationLine( "TYPE", tool.m_type );
        twriter.WriteEquationLine( "TYPE2", tool.m_type2 );
        twriter.WriteEquationLine( "MIN_TOL", tool.m_minTol );
        twriter.WriteEquationLine( "MAX_TOL", tool.m_maxTol );
        twriter.WriteEquationLine( "BIT", tool.m_bit );
        twriter.WriteEquationLine( "FINISH_SIZE", tool.m_finishSize );
        twriter.WriteEquationLine( "DRILL_SIZE", tool.m_drillSize );
    }
}