/**
 * @file   grid_indexing.hpp
 * @author Julian Iseringhausen <isering@ins.uni-bonn.de>
 * @date   Mon Apr 18 12:54:05 2011
 *
 * @brief  VMG::GlobalIndices, VMG::LocalIndices and VMG::SpatialExtent
 *
 */

#ifndef GRID_INDEXING_HPP_
#define GRID_INDEXING_HPP_

#include "base/index.hpp"
#include "base/vector.hpp"

namespace VMG
{

class GlobalIndices
{
public:
  const Index& Size() const {return size;}   	                 ///< Global grid size including boundary
  const Index& Begin() const {return begin;} 	                 ///< Global index of first local grid point
  const Index& End() const {return end;}     	                 ///< Global index of first non-local grid point
  const Index& AlignmentBegin() const {return alignmentBegin;} ///< Global index of first point of the next higher level
  const Index& AlignmentEnd() const {return alignmentEnd;}
  const BT& BoundaryType() const {return boundary;}

  Index& Size() {return size;}                     ///< Global grid size including boundary
  Index& Begin() {return begin;} 	             ///< Global index of first local grid point
  Index& End() {return end;}     	             ///< Global index of first non-local grid point
  Index& AlignmentBegin() {return alignmentBegin;} ///< Global index of first point of the next higher level
  Index& AlignmentEnd() {return alignmentEnd;}
  BT& BoundaryType() {return boundary;}

private:
  Index size;
  Index begin;
  Index end;
  Index alignmentBegin, alignmentEnd;
  BT boundary;
};

class LocalIndices
{
public:
  const Index& Size() const {return size;}           ///< Local grid size excluding halo
  const Index& SizeTotal() const {return sizeTotal;} ///< Local grid size including halo and boundary
  const Index& Begin() const {return begin;}         ///< Index of first local grid point
  const Index& End() const {return end;}             ///< Index of first non-local grid point

  Index& Size() {return size;}           ///< Local grid size excluding halo
  Index& SizeTotal() {return sizeTotal;} ///< Local grid size including halo and boundary
  Index& Begin() {return begin;}    	   ///< Index of first local grid point
  Index& End() {return end;}             ///< Index of first non-local grid point

  const Index& HaloBegin1() const {return haloBegin1;} ///< Index of first halo point
  const Index& HaloBegin2() const {return haloBegin2;} ///< Index of first halo point
  const Index& HaloEnd1() const {return haloEnd1;}     ///< Index of first non-halo point
  const Index& HaloEnd2() const {return haloEnd2;}     ///< Index of first non-halo point

  Index& HaloBegin1() {return haloBegin1;} ///< Index of first halo point
  Index& HaloBegin2() {return haloBegin2;} ///< Index of first halo point
  Index& HaloEnd1() {return haloEnd1;}     ///< Index of first non-halo point
  Index& HaloEnd2() {return haloEnd2;}     ///< Index of first non-halo point

  const Index& BoundaryBegin1() const {return boundaryBegin1;} ///< Index of first boundary point
  const Index& BoundaryBegin2() const {return boundaryBegin2;} ///< Index of first boundary point
  const Index& BoundaryEnd1() const {return boundaryEnd1;}     ///< Index of first non-boundary point
  const Index& BoundaryEnd2() const {return boundaryEnd2;}     ///< Index of first non-boundary point

  Index& BoundaryBegin1() {return boundaryBegin1;} ///< Index of first boundary point
  Index& BoundaryBegin2() {return boundaryBegin2;} ///< Index of first boundary point
  Index& BoundaryEnd1() {return boundaryEnd1;}     ///< Index of first non-boundary point
  Index& BoundaryEnd2() {return boundaryEnd2;}     ///< Index of first non-boundary point

  const Index& AlignmentBegin() const {return alignmentBegin;}
  const Index& AlignmentEnd() const {return alignmentEnd;}

  Index& AlignmentBegin() {return alignmentBegin;}
  Index& AlignmentEnd() {return alignmentEnd;}

private:
  Index size;
  Index sizeTotal;
  Index begin;
  Index end;
  Index haloBegin1, haloEnd1;
  Index haloBegin2, haloEnd2;
  Index boundaryBegin1, boundaryEnd1;
  Index boundaryBegin2, boundaryEnd2;
  Index alignmentBegin, alignmentEnd;
};

class SpatialExtent
{
public:
  const Vector& Size() const {return size;}
  const Index& SizeFactor() const {return size_factor;}
  const Vector& Begin() const {return begin;}
  const Vector& End() const {return end;}
  const Vector& MeshWidth() const {return meshWidth;}

  Vector& Size() {return size;}
  Index& SizeFactor() {return size_factor;}
  Vector& Begin() {return begin;}
  Vector& End() {return end;}
  Vector& MeshWidth() {return meshWidth;}

private:
  Vector size;
  Index size_factor;
  Vector begin;
  Vector end;
  Vector meshWidth;
};

}

#endif /* GRID_INDEXING_HPP_ */