LeapSecondDatabase.hpp

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#ifndef FOCS_LEAPSECONDDATABASE
#define FOCS_LEAPSECONDDATABASE
 
// #include <chrono>
// #include <functional>
// #include <iterator>
#include <string>
// #include <tuple>
// #include <unordered_map>
#include <vector>
 
#include <boost/date_time/posix_time/posix_time.hpp>
 
namespace focs {
    class LeapSecond {
        public:
            LeapSecond(unsigned short year, unsigned short month, unsigned short day, float leap_seconds_) : time{boost::gregorian::date{year, month, day}}, leap_seconds{leap_seconds_}{}
            boost::posix_time::ptime time; 
            float leap_seconds; 
    };
    class LeapSecondDatabase {
        public:
            LeapSecondDatabase();
            explicit LeapSecondDatabase(const std::string& file){load_file(file);}
            inline static LeapSecondDatabase& get_default(){
                static LeapSecondDatabase _instance{};
                return _instance;
            }
 
            float leap_seconds_since(const boost::posix_time::ptime& time);
 
            bool is_leap_second(const boost::posix_time::ptime& time);
        private:
            std::string path_;
            std::vector<LeapSecond> leap_seconds_{};
 
            void load_file(const std::string& file);
    };
    
} // namespace focs
 
#endif // FOCS_LEAPSECONDDATABASE