civil_time.hpp

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#pragma once
 
#include "ffi_core.hpp"
#include <iomanip>
#include <ostream>
 
namespace tempoch {
 
struct CivilTime {
  int32_t year;        
  uint8_t month;       
  uint8_t day;         
  uint8_t hour;        
  uint8_t minute;      
  uint8_t second;      
  uint32_t nanosecond; 
 
  CivilTime() : year(2000), month(1), day(1), hour(12), minute(0), second(0), nanosecond(0) {}
 
  CivilTime(int32_t y, uint8_t mo, uint8_t d, uint8_t h = 0, uint8_t mi = 0, uint8_t s = 0,
            uint32_t ns = 0)
      : year(y), month(mo), day(d), hour(h), minute(mi), second(s), nanosecond(ns) {}
 
  tempoch_utc_t to_c() const { return {year, month, day, hour, minute, second, nanosecond}; }
 
  static CivilTime from_c(const tempoch_utc_t &c) {
    return CivilTime(c.year, c.month, c.day, c.hour, c.minute, c.second, c.nanosecond);
  }
};
 
inline std::ostream &operator<<(std::ostream &os, const CivilTime &u) {
  const char prev = os.fill();
  os << u.year << '-' << std::setfill('0') << std::setw(2) << static_cast<int>(u.month) << '-'
     << std::setw(2) << static_cast<int>(u.day) << ' ' << std::setw(2) << static_cast<int>(u.hour)
     << ':' << std::setw(2) << static_cast<int>(u.minute) << ':' << std::setw(2)
     << static_cast<int>(u.second);
  if (u.nanosecond != 0)
    os << '.' << std::setw(9) << u.nanosecond;
  os.fill(prev);
  return os;
}
 
} // namespace tempoch