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//
#ifndef G4DNAUPDATESYSTEMMODEL_HH
#define G4DNAUPDATESYSTEMMODEL_HH
#include "G4DNAMesh.hh"
#include "G4VUpdateSystemModel.hh"

class G4MolecularConfiguration;
class G4DNAMolecularReactionTable;
class G4DNAMolecularReactionData;

class G4DNAUpdateSystemModel : public G4VUpdateSystemModel
{
 public:
  using Index        = G4VDNAMesh::Index;
  using MolType      = const G4MolecularConfiguration*;
  using JumpingData  = std::pair<MolType, Index>;
  using ReactionData = const G4DNAMolecularReactionData;

  G4DNAUpdateSystemModel();
  ~G4DNAUpdateSystemModel() override = default;
  void UpdateSystem(const Index& index, const ReactionData& data);
  void UpdateSystem(const Index& index, const JumpingData& data);
  void SetMesh(G4DNAMesh*);
  void SetGlobalTime(const G4double& globalTime) { fGlobalTime = globalTime; }
  void SetVerbose(G4int verbose) { fVerbose = verbose; }

 private:
  void KillMolecule(const Index& index, MolType type);
  void CreateMolecule(const Index& index, MolType);
  void JumpTo(const Index& index, MolType type);
  void JumpIn(const Index& index, MolType);
  G4DNAMesh* fpMesh  = nullptr;
  G4int fVerbose = 0;
  G4double fGlobalTime = DBL_MAX;
};

#endif  // G4DNAUPDATESYSTEMMODEL_HH