// Copyright (c) 1999-2014 OPEN CASCADE SAS
//
// This file is part of Open CASCADE Technology software library.
//
// This library is free software; you can redistribute it and/or modify it under
// the terms of the GNU Lesser General Public License version 2.1 as published
// by the Free Software Foundation, with special exception defined in the file
// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
// distribution for complete text of the license and disclaimer of any warranty.
//
// Alternatively, this file may be used under the terms of Open CASCADE
// commercial license or contractual agreement.


#include <Interface_Check.hxx>
#include <Interface_Macros.hxx>
#include <Standard_Transient.hxx>
#include <Standard_Type.hxx>
#include <StepData_DescrReadWrite.hxx>
#include <StepData_ECDescr.hxx>
#include <StepData_EDescr.hxx>
#include <StepData_ESDescr.hxx>
#include <StepData_FieldListN.hxx>
#include <StepData_Plex.hxx>
#include <StepData_Protocol.hxx>
#include <StepData_Simple.hxx>
#include <StepData_StepReaderData.hxx>
#include <StepData_StepWriter.hxx>
#include <TCollection_AsciiString.hxx>
#include <TColStd_HSequenceOfAsciiString.hxx>

static TCollection_AsciiString nocp("?");


    StepData_DescrReadWrite::StepData_DescrReadWrite
  (const Handle(StepData_Protocol)& proto)
    : theproto (proto)    {  }

    Standard_Integer  StepData_DescrReadWrite::CaseStep
  (const TCollection_AsciiString& atype) const
{
  Handle(StepData_ESDescr) descr = theproto->ESDescr (atype.ToCString(),Standard_False);
  if (descr.IsNull()) return 0;
  return theproto->DescrNumber (descr);
}

    Standard_Integer  StepData_DescrReadWrite::CaseStep
  (const TColStd_SequenceOfAsciiString& types) const
{
  Handle(StepData_ECDescr) descr = theproto->ECDescr (types,Standard_False);
  if (descr.IsNull()) return 0;
  return theproto->DescrNumber (descr);
}


    Standard_Boolean  StepData_DescrReadWrite::IsComplex
  (const Standard_Integer CN) const
{
  Handle(StepData_EDescr)  descr = theproto->Descr (CN);
  if (descr.IsNull()) return Standard_False;
  return descr->IsComplex();
}

    const TCollection_AsciiString& StepData_DescrReadWrite::StepType
  (const Standard_Integer CN) const
{
  Handle(StepData_ESDescr)  descr = Handle(StepData_ESDescr)::DownCast
    (theproto->Descr (CN));
  if (descr.IsNull()) return nocp;
  return descr->StepType();
}

    Standard_Boolean StepData_DescrReadWrite::ComplexType
  (const Standard_Integer CN, TColStd_SequenceOfAsciiString& types) const
{
  Handle(StepData_ECDescr)  descr = Handle(StepData_ECDescr)::DownCast
    (theproto->Descr (CN));
  if (descr.IsNull()) return Standard_False;
  Handle(TColStd_HSequenceOfAsciiString) list = descr->TypeList();
  if (list.IsNull()) return Standard_False;
  Standard_Integer i, nb = list->Length();
  for (i = 1; i <= nb; i ++)  types.Append (list->Value(i));
  return Standard_True;
}


void StepData_DescrReadWrite::ReadStep(const Standard_Integer CN,
                                       const Handle(StepData_StepReaderData)& data,
                                       const Standard_Integer num,
                                       Handle(Interface_Check)& ach,
                                       const Handle(Standard_Transient)&ent) const
{
  if (CN == 0) return;
  DeclareAndCast(StepData_Simple,sent,ent);
  if (!sent.IsNull()) {
    Handle(StepData_ESDescr) sdescr = sent->ESDescr();
    StepData_FieldListN& fl = sent->CFields();
    data->ReadList (num,ach,sdescr,fl);
    return;
  }

  DeclareAndCast(StepData_Plex,cent,ent);
  Standard_Integer i, nb=0;
  if (!cent.IsNull()) nb = cent->NbMembers();
  Standard_Integer n0 = num;
  for (i = 1; i <= nb; i ++) {
    Handle(StepData_Simple) si = cent->Member(i);
    Handle(StepData_ESDescr) sdescr = si->ESDescr();
    StepData_FieldListN& fl = si->CFields();
    data->ReadList (n0,ach,sdescr,fl);
    if (i < nb) n0 = data->NextForComplex(n0);
  }
}


    void StepData_DescrReadWrite::WriteStep
  (const Standard_Integer CN,
   StepData_StepWriter& SW,
   const Handle(Standard_Transient)&ent) const
{
  if (CN == 0) return;

  DeclareAndCast(StepData_Simple,sent,ent);
  if (!sent.IsNull()) {
    Handle(StepData_ESDescr) sdescr = sent->ESDescr();
    const StepData_FieldListN& fl = sent->Fields();
    SW.SendList (fl,sdescr);
    return;
  }

  DeclareAndCast(StepData_Plex,cent,ent);
  Standard_Integer i, nb=0;
  if (!cent.IsNull()) nb = cent->NbMembers();
  for (i = 1; i <= nb; i ++) {
    Handle(StepData_Simple) si = cent->Member(i);
    Handle(StepData_ESDescr) sdescr = si->ESDescr();
      const StepData_FieldListN& fl = si->Fields();
      SW.StartEntity (sdescr->TypeName());
      SW.SendList (fl,sdescr);
  }
}