#pragma once
#include <string>
#include <unordered_map>
#include <vector>

class Config {
public:
    Config(std::string file_name);

    double              eps;
    double              t_end;
    double              dt_disk;
    double              dt_contr;
    double              dt_bh;
    double              eta;
    std::string         input_file_name;
    int                 devices_per_node;
    bool                dt_min_warning;
   
    bool                output_hdf5;
    bool                output_hdf5_double_precision;
    int                 output_ascii_precision;
    int                 output_extra_mode;
   
    int                 live_smbh_count;
    double              live_smbh_custom_eps;
    bool                live_smbh_output;
    bool                live_smbh_neighbor_output;
    int                 live_smbh_neighbor_number;
   
    bool                binary_smbh_pn;
    bool                binary_smbh_influence_sphere_output;
    double              binary_smbh_influence_radius_factor;
    std::vector<int>    pn_usage;
    double              pn_c;
    std::vector<double> smbh1_spin;
    std::vector<double> smbh2_spin;

    bool                ext_units_physical;
    double              unit_mass;
    double              unit_length;
    double              ext_m_bulge;
    double              ext_b_bulge;
    double              ext_m_disk;
    double              ext_a_disk;
    double              ext_b_disk;
    double              ext_m_halo_plummer;
    double              ext_b_halo_plummer;
    double              ext_log_halo_r;
    double              ext_log_halo_v;
    double              ext_dehnen_m;
    double              ext_dehnen_r;
    double              ext_dehnen_gamma;

#ifdef ETICS
    double              dt_scf;
    std::string         grapite_mask_file_name;
    bool                etics_dump_coeffs;
    bool                grapite_active_search;
#endif

private:
    using Dictionary = std::unordered_map<std::string,std::string>;
    Dictionary read_config_file(const std::string file_name);
    std::string strip(const std::string str);
    template<typename T> T string_cast(const std::string str);
    template<typename T> T get_parameter(Dictionary dictionary, std::string name);
    template<typename T> T get_parameter(Dictionary dictionary, std::string name, T default_value);
    void error_checking();
};