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// $Id$
//
// 20100507  M. Kelsey -- Use template arguments to dimension const-refs
//		to arrays,for use in passing to functions as dimensioned.
//		Add two additional optional(!) template args for piN/NN.
//		Add new data member "sum" to separate summed xsec values
//		from measured inclusive (tot) cross-sections.  Add two
//		ctors to pass inclusive xsec array as input (for piN/NN).
// 20100611  M. Kelsey -- Work around Intel ICC compiler warning about
//		index[] subscripts out of range.  Dimension to full [9].
// 20100803  M. Kelsey -- Add printing function for debugging, split
//		implementation code to .icc file.  Add name argument.
// 20110718  M. Kelsey -- Add inelastic cross-section sum to deal with
//		suppressing elastic scattering off free nucleons (hydrogen)
// 20110719  M. Kelsey -- Add ctor argument for two-body initial state
// 20110725  M. Kelsey -- Save initial state as data member
// 20110923  M. Kelsey -- Add optional ostream& argument to print() fns

#ifndef G4_CASCADE_DATA_HH
#define G4_CASCADE_DATA_HH

#include "globals.hh"
#include "G4CascadeSampler.hh"		/* To get number of energy bins */
#include "G4String.hh"


template <int NE,int N2,int N3,int N4,int N5,int N6,int N7,int N8=0,int N9=0>
struct G4CascadeData
{
  // NOTE: Need access to N2 by value to initialize index array
  enum { N02=N2, N23=N2+N3, N24=N23+N4, N25=N24+N5, N26=N25+N6, N27=N26+N7,
	 N28=N27+N8, N29=N28+N9 };

  enum { N8D=N8?N8:1, N9D=N9?N9:1 };	// SPECIAL: Can't dimension arrays [0]

  enum { NM=N9?8:N8?7:6, NXS=N29 };	// Multiplicity and cross-section bins

  G4int index[9];			// Start and stop indices to xsec's
  G4double multiplicities[NM][NE];	// Multiplicity distributions

  const G4int (&x2bfs)[N2][2];		// Initialized from file-scope inputs
  const G4int (&x3bfs)[N3][3];
  const G4int (&x4bfs)[N4][4];
  const G4int (&x5bfs)[N5][5];
  const G4int (&x6bfs)[N6][6];
  const G4int (&x7bfs)[N7][7];
  const G4int (&x8bfs)[N8D][8];		// These may not be used if mult==7
  const G4int (&x9bfs)[N9D][9];
  const G4double (&crossSections)[NXS][NE];

  G4double sum[NE];			// Summed cross-sections, computed
  const G4double (&tot)[NE];		// Inclusive cross-sections (from input)

  G4double inelastic[NE];		// Sum of only inelastic channels

  static const G4int empty8bfs[1][8];	// For multiplicity==7 case
  static const G4int empty9bfs[1][9];

  const G4String name;			// For diagnostic purposes
  const G4int initialState;		// For registration in lookup table

  G4int maxMultiplicity() const { return NM+1; }  // Used by G4CascadeFunctions

  // Dump multiplicty tables to specified stream
  void print(std::ostream& os=G4cout) const;
  void print(G4int mult, std::ostream& os) const;
  void printXsec(const G4double (&xsec)[NE], std::ostream& os) const;

  // Constructor for kaon/hyperon channels, with multiplicity <= 7
  G4CascadeData(const G4int (&the2bfs)[N2][2], const G4int (&the3bfs)[N3][3],
		const G4int (&the4bfs)[N4][4], const G4int (&the5bfs)[N5][5],
		const G4int (&the6bfs)[N6][6], const G4int (&the7bfs)[N7][7],
		const G4double (&xsec)[NXS][NE], G4int ini,
		const G4String& aName="G4CascadeData")
    : x2bfs(the2bfs), x3bfs(the3bfs), x4bfs(the4bfs), x5bfs(the5bfs),
      x6bfs(the6bfs), x7bfs(the7bfs), x8bfs(empty8bfs), x9bfs(empty9bfs),
      crossSections(xsec), tot(sum), name(aName), initialState(ini) {
    initialize();
  }

  // Constructor for kaon/hyperon channels, with multiplicity <= 7 and inclusive
  G4CascadeData(const G4int (&the2bfs)[N2][2], const G4int (&the3bfs)[N3][3],
		const G4int (&the4bfs)[N4][4], const G4int (&the5bfs)[N5][5],
		const G4int (&the6bfs)[N6][6], const G4int (&the7bfs)[N7][7],
		const G4double (&xsec)[NXS][NE], const G4double (&theTot)[NE],
		G4int ini, const G4String& aName="G4CascadeData")
    : x2bfs(the2bfs), x3bfs(the3bfs), x4bfs(the4bfs), x5bfs(the5bfs),
      x6bfs(the6bfs), x7bfs(the7bfs), x8bfs(empty8bfs), x9bfs(empty9bfs),
      crossSections(xsec), tot(theTot), name(aName), initialState(ini) {
    initialize();
  }

  // Constructor for pion/nucleon channels, with multiplicity > 7
  G4CascadeData(const G4int (&the2bfs)[N2][2], const G4int (&the3bfs)[N3][3],
		const G4int (&the4bfs)[N4][4], const G4int (&the5bfs)[N5][5],
		const G4int (&the6bfs)[N6][6], const G4int (&the7bfs)[N7][7],
		const G4int (&the8bfs)[N8D][8], const G4int (&the9bfs)[N9D][9],
		const G4double (&xsec)[NXS][NE], G4int ini,
		const G4String& aName="G4CascadeData")
    : x2bfs(the2bfs), x3bfs(the3bfs), x4bfs(the4bfs), x5bfs(the5bfs),
      x6bfs(the6bfs), x7bfs(the7bfs), x8bfs(the8bfs), x9bfs(the9bfs),
      crossSections(xsec), tot(sum), name(aName), initialState(ini) {
    initialize();
  }

  // Constructor for pion/nucleon channels, with multiplicity > 7 and inclusive
  G4CascadeData(const G4int (&the2bfs)[N2][2], const G4int (&the3bfs)[N3][3],
		const G4int (&the4bfs)[N4][4], const G4int (&the5bfs)[N5][5],
		const G4int (&the6bfs)[N6][6], const G4int (&the7bfs)[N7][7],
		const G4int (&the8bfs)[N8D][8], const G4int (&the9bfs)[N9D][9],
		const G4double (&xsec)[NXS][NE], const G4double (&theTot)[NE],
		G4int ini, const G4String& aName="G4CascadeData")
    : x2bfs(the2bfs), x3bfs(the3bfs), x4bfs(the4bfs), x5bfs(the5bfs),
      x6bfs(the6bfs), x7bfs(the7bfs), x8bfs(the8bfs), x9bfs(the9bfs),
      crossSections(xsec), tot(theTot), name(aName), initialState(ini) {
    initialize();
  }

  void initialize();			// Fill summed arrays from input
};

// Dummy arrays for use when optional template arguments are skipped
template <int NE,int N2,int N3,int N4,int N5,int N6,int N7,int N8,int N9>
const G4int G4CascadeData<NE,N2,N3,N4,N5,N6,N7,N8,N9>::empty8bfs[1][8] = {{0}};

template <int NE,int N2,int N3,int N4,int N5,int N6,int N7,int N8,int N9>
const G4int G4CascadeData<NE,N2,N3,N4,N5,N6,N7,N8,N9>::empty9bfs[1][9] = {{0}};

// GCC and other compilers require template implementations here
#include "G4CascadeData.icc"

#endif