feed_descriptor.hpp

#ifndef __SIMULATION_FEED_DESCRIPTOR_HPP__
#define __SIMULATION_FEED_DESCRIPTOR_HPP__
 
#include <cstddef>
#include <cstdint>
#include <optional>
#include <variant>
#include <vector>
 
enum class FeedType : std::uint8_t
{
  Constant,
  DelayedConstant,
  Step,
  Pulse,
  Custom
};
 
namespace Simulation::Feed
{
  using feed_value_t = std::vector<double>;
  using feed_position_t = std::vector<std::size_t>;
  using feed_species_t = std::vector<std::size_t>;
 
  struct Constant
  {
  };
 
  struct DelayedConstant
  {
    double t_init;
    double t_end;
    double stored_value;
  };
 
  struct Step
  {
    double t_init = 0.;
  };
 
  struct Pulse
  {
    double t_init;
    double t_end;
    double frequency;
  };
 
  struct Custom
  {
  };
 
  using FeedTypeVariant = std::variant<Constant, Step, Pulse, Custom, DelayedConstant>;
 
  FeedType get_type(const FeedTypeVariant& v);
 
  class FeedDescritor
  {
  public:
    FeedDescritor() = default;
    FeedDescritor(double _f,
                  feed_value_t&& _target,
                  feed_position_t&& _position,
                  feed_species_t _species,
                  FeedTypeVariant _props,
                  bool set_exit);
 
    double flow_value{};
    feed_value_t value;
    feed_position_t position;
    feed_species_t species;
    FeedTypeVariant props;
    bool set_exit = true;
    size_t n_v{};
 
    void update(double t, double d_t) noexcept;
 
  private:
    FeedType type{};
    feed_value_t target;
  };
 
  struct FeedFactory
  {
    static FeedDescritor constant(double _f,
                                  feed_value_t&& _target,
                                  feed_position_t&& _position,
                                  feed_species_t _species,
                                  bool set_exit = true);
    static FeedDescritor delayedconstant(double _f,
                                         feed_value_t&& _target,
                                         feed_position_t&& _position,
                                         feed_species_t _species,
                                         double t_init,
                                         double t_end,
                                         bool set_exit = true);
  };
 
  struct SimulationFeed
  {
    std::optional<std::vector<FeedDescritor>> liquid;
    std::optional<std::vector<FeedDescritor>> gas;
  };
 
  // struct Visitor
  // {
  //   void operator()(Uniform args);
  //   void operator()(Local args);
  //   void operator()(File filepath);
  //   void operator()(CustomScript path);
  // };
} // namespace Simulation::Feed
 
#endif