// Created on: 2005-10-05
// Created by: Mikhail KLOKOV
// Copyright (c) 2005-2014 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.

#ifndef _IntTools_CurveRangeSample_HeaderFile
#define _IntTools_CurveRangeSample_HeaderFile

#include "Standard.hxx"
#include "Standard_DefineAlloc.hxx"
#include "Standard_Handle.hxx"

#include "IntTools_BaseRangeSample.hxx"
#include "Standard_HashUtils.hxx"
#include "Standard_Boolean.hxx"
#include "Standard_Real.hxx"

class IntTools_Range;

//! class for range index management of curve
class IntTools_CurveRangeSample : public IntTools_BaseRangeSample
{
public:
  DEFINE_STANDARD_ALLOC

  Standard_EXPORT IntTools_CurveRangeSample();

  Standard_EXPORT IntTools_CurveRangeSample(const int theIndex);

  void SetRangeIndex(const int theIndex) { myIndex = theIndex; }

  int GetRangeIndex() const { return myIndex; }

  bool IsEqual(const IntTools_CurveRangeSample& Other) const
  {
    return ((myIndex == Other.myIndex) && (GetDepth() == Other.GetDepth()));
  }

  bool operator==(const IntTools_CurveRangeSample& Other) const { return IsEqual(Other); }

  Standard_EXPORT IntTools_Range GetRange(const double theFirst,
                                          const double theLast,
                                          const int    theNbSample) const;

  int GetRangeIndexDeeper(const int theNbSample) const { return myIndex * theNbSample; }

private:
  int myIndex;
};

namespace std
{
template <>
struct hash<IntTools_CurveRangeSample>
{
  size_t operator()(const IntTools_CurveRangeSample& theCurveRangeSample) const noexcept
  {
    // Combine two int values into a single hash value.
    int aCombination[2]{theCurveRangeSample.GetDepth(), theCurveRangeSample.GetRangeIndex()};
    return opencascade::hashBytes(aCombination, sizeof(aCombination));
  }
};
} // namespace std

#endif // _IntTools_CurveRangeSample_HeaderFile