listmodus.h

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/*
 *    Copyright (c) 2013-2018
 *      SMASH Team
 *
 *    GNU General Public License (GPLv3 or later)
 */
#ifndef SRC_INCLUDE_LISTMODUS_H_
#define SRC_INCLUDE_LISTMODUS_H_

#include <cmath>
#include <cstdint>
#include <list>
#include <string>
#include <utility>

#include "forwarddeclarations.h"
#include "modusdefault.h"

namespace smash {

class ListModus : public ModusDefault {
 public:
  explicit ListModus(Configuration modus_config,
                     const ExperimentParameters &parameters);

  ListModus() : shift_id_(0) {}

  double initial_conditions(Particles *particles,
                            const ExperimentParameters &parameters);
  void backpropagate_to_same_time(Particles &particles);

  void try_create_particle(Particles &particles, PdgCode pdgcode, double t,
                           double x, double y, double z, double mass, double E,
                           double px, double py, double pz);

  struct LoadFailure : public std::runtime_error {
    using std::runtime_error::runtime_error;
  };

  bool is_list() const { return true; }

 protected:
  double start_time_ = 0.;

 private:
  std::string particle_list_file_directory_;

  std::string particle_list_file_prefix_;

  std::string current_particle_list_file_;

  const int shift_id_;

  int event_id_;

  int file_id_;

  int n_warns_precision_ = 0;
  int n_warns_mass_consistency_ = 0;

  bool file_has_events_(bf::path filepath, std::streampos last_position);

  std::streampos last_read_position_;

  bf::path file_path_(const int file_id);

  std::string next_event_();

  friend std::ostream &operator<<(std::ostream &, const ListModus &);
};

}  // namespace smash

#endif  // SRC_INCLUDE_LISTMODUS_H_