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//
// -------------------------------------------------------------------
//
// GEANT4 Class header file
//
// File name:     G4HadDataHandler
//
// Author:        V. Ivanchenko 
// 
// Creation date: 05 July 2022
//
// Modifications: 
//
// Class Description: 
//
// A storage of G4PhysicsTable
//
// Class Description: End 

// -------------------------------------------------------------------
//

#ifndef G4HadDataHandler_h
#define G4HadDataHandler_h 1

#include "globals.hh"
#include "G4PhysicsTable.hh"
#include "G4PhysicsVector.hh"
#include <vector>

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class G4VProcess;

class G4HadDataHandler
{
public:

  explicit G4HadDataHandler(std::size_t nTable);

  ~G4HadDataHandler();

  // add table
  void AddTable(G4PhysicsTable*);

  // update table with existing index
  void UpdateTable(G4PhysicsTable*, std::size_t idx);

  // clean existing table
  void CleanTable(std::size_t idx);
  
  // keep pointer of master thread process
  void SetMasterProcess(const G4VProcess*);

  // return pointer of master thread process
  const G4VProcess* GetMasterProcess(std::size_t idx) const;

  // access to the table via index
  inline const G4PhysicsTable* GetTable(std::size_t idx) const { 
    return (idx < tLength) ? data[idx] : nullptr; 
  }
  inline G4PhysicsTable* Table(std::size_t idx) const {
    return (idx < tLength) ? data[idx] : nullptr; 
  }

  // access to vector, no check on input index
  inline 
  const G4PhysicsVector* GetVector(std::size_t itable, std::size_t ivec) const
  { return (*(data[itable]))[ivec]; }

  inline const std::vector<G4PhysicsTable*>& GetTables() const { return data; }

  // hide assignment operator 
  G4HadDataHandler & operator=(const G4HadDataHandler &right) = delete;
  G4HadDataHandler(const G4HadDataHandler&) = delete;

private:

  std::vector<G4PhysicsTable*> data;
  std::size_t tLength;
  std::vector<const G4VProcess*> masterProcess;
};

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#endif