// Fig. 9.8: Time.cpp
// Time class member-function definitions. 
#include <fmt/format.h>
#include <stdexcept> // for invalid_argument exception class     
#include <string>
#include "Time.h" // include definition of class Time from Time.h 

// set new Time value using 24-hour time
void Time::setTime(int hour, int minute, int second) {
   // validate hour, minute and second
   if ((hour < 0 || hour >= 24) || (minute < 0 || minute >= 60) ||
      (second < 0 || second >= 60)) {
      throw std::invalid_argument{
         "hour, minute or second was out of range"};
   }

   m_hour = hour;
   m_minute = minute;
   m_second = second;
}

// return Time as a string in 24-hour format (HH:MM:SS)
std::string Time::to24HourString() const {
   return fmt::format("{:02d}:{:02d}:{:02d}", m_hour, m_minute, m_second);
}

// return Time as string in 12-hour format (HH:MM:SS AM or PM)
std::string Time::to12HourString() const {
   return fmt::format("{}:{:02d}:{:02d} {}",
      ((m_hour % 12 == 0) ? 12 : m_hour % 12), m_minute, m_second,
      (m_hour < 12 ? "AM" : "PM"));
}




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