/******************************************************************************
**  libDXFrw - Library to read/write DXF files (ascii & binary)              **
**                                                                           **
**  Copyright (C) 2011-2015 José F. Soriano, rallazz@gmail.com               **
**                                                                           **
**  This library is free software, licensed 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.  **
**  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 "drw_classes.h"

#include "intern/dxfreader.h"
#include "intern/dxfwriter.h"
#include "intern/dwgbuffer.h"
#include "intern/drw_dbg.h"

void DRW_Class::parseCode( int code, dxfReader *reader )
{
  switch ( code )
  {
    case 1:
      recName = reader->getUtf8String();
      break;
    case 2:
      className = reader->getUtf8String();
      break;
    case 3:
      appName = reader->getUtf8String();
      break;
    case 90:
      proxyFlag = reader->getInt32();
      break;
    case 91:
      instanceCount = reader->getInt32();
      break;
    case 280:
      wasaProxyFlag = reader->getInt32();
      break;
    case 281:
      entityFlag = reader->getInt32();
      break;
    default:
      break;
  }
}

bool DRW_Class::parseDwg( DRW::Version version, dwgBuffer *buf, dwgBuffer *strBuf )
{
    DRW_DBG("\n***************************** parsing Class *********************************************\n");

  classNum = buf->getBitShort();
    DRW_DBG("Class number: "); DRW_DBG(classNum);
  proxyFlag = buf->getBitShort(); //in dwg specs says "version"

  appName = strBuf->getVariableText( version, false );
  className = strBuf->getVariableText( version, false );
  recName = strBuf->getVariableText( version, false );

  DRW_DBG("\napp name: "); DRW_DBG(appName.c_str());
  DRW_DBG("\nclass name: "); DRW_DBG(className.c_str());
  DRW_DBG("\ndxf rec name: "); DRW_DBG(recName.c_str());
  wasaProxyFlag = buf->getBit(); //in dwg says wasazombie
  entityFlag = buf->getBitShort();
  entityFlag = entityFlag == 0x1F2 ? 1 : 0;

  DRW_DBG("\nProxy capabilities flag: "); DRW_DBG(proxyFlag);
  DRW_DBG(", proxy flag (280): "); DRW_DBG(wasaProxyFlag);
  DRW_DBG(", entity flag: "); DRW_DBGH(entityFlag);

  if ( version > DRW::AC1015 )  //2004+
  {
      instanceCount = buf->getBitLong();
      DRW_DBG("\nInstance Count: "); DRW_DBG(instanceCount);
      duint32 dwgVersion = buf->getBitLong();
      DRW_DBG("\nDWG version: "); DRW_DBG(dwgVersion);
      DRW_DBG("\nmaintenance version: "); DRW_DBG(buf->getBitLong());
      DRW_DBG("\nunknown 1: "); DRW_DBG(buf->getBitLong());
      DRW_DBG("\nunknown 2: "); DRW_DBG(buf->getBitLong());
  }

  toDwgType();
  return buf->isGood();
}

void DRW_Class::write( dxfWriter *writer, DRW::Version ver )
{
  if ( ver > DRW::AC1009 )
  {
    writer->writeString( 0, "CLASS" );
    writer->writeString( 1, recName );
    writer->writeString( 2, className );
    writer->writeString( 3, appName );
    writer->writeInt32( 90, proxyFlag );
    if ( ver > DRW::AC1015 ) //2004+
    {
      writer->writeInt32( 91, instanceCount );
    }
    writer->writeInt16( 280, wasaProxyFlag );
    writer->writeInt16( 281, entityFlag );
  }
}

void DRW_Class::toDwgType()
{
  if ( recName == "LWPOLYLINE" )
    dwgType = 77;
  else if ( recName == "HATCH" )
    dwgType = 78;
  else if ( recName == "GROUP" )
    dwgType = 72;
#if 0
  else if ( recName == "GROUP" )
    dwgType = 72;
#endif
  else if ( recName == "LAYOUT" )
    dwgType = 82;
  else if ( recName == "IMAGE" )
    dwgType = 101;
  else if ( recName == "IMAGEDEF" )
    dwgType = 102;
  else
    dwgType = 0;
}