// Fig. 21.19: Time.cpp 
// Member-function definitions for Time class.

/* Josh Garst
10-02-07

Purpose: To store only the second variable in the private sector of the class.
Inputs: variables that represent time are passed in from the testmain.cpp
Outputs: The time for the examples that are given
*/

#include <iostream>
using std::cout;

#include <iomanip>
using std::setfill;
using std::setw;

#include "Time.h" // Time class definition

// constructor function to initialize private data;
// calls member function setTime to set variables;
// default values are 0 (see class definition)

Time::Time( int hr, int min, int sec ) 
{ 
	second = 0;
   setTime( hr, min, sec ); 
} // end Time constructor

// set values of hour, minute, and second
Time &Time::setTime( int h, int m, int s ) // note Time & return
{
   setHour( h );
   setMinute( m );
   setSecond( s ); 
   return *this; // enables cascading
}

// set hour value
Time &Time::setHour( int h ) // note Time & return
{
	int hour;
	int minute;
	int sec;

	// Breaks down the different variables into a total
	hour = second / 3600;
	second %= 3600;
	minute = second / 60;
	second %= 60;
	sec = second;

   hour =  ( h >= 0 && h < 24 ) ? h : 0; // validate hour
     
	second = hour* 3600;
	second += minute * 60;
	second += sec;

   return *this; // enables cascading
} 

// set minute value
Time &Time::setMinute( int m ) // note Time & return
{
	int hour;
	int minute;
	int sec;

	hour = second / 3600;
	second %= 3600;
	minute = second / 60;
	second %= 60;
	sec = second;

   minute = ( m >= 0 && m < 60 ) ? m : 0; // validate minute
	
   	second = hour * 3600;
	second += minute * 60;
	second += sec;

   return *this; // enables cascading
} 

// set second value
Time &Time::setSecond( int s ) // note Time & return
{
	int hour;
	int minute;
	int sec;

	hour = second / 3600;
	second %= 3600;
	minute = second / 60;
	second %= 60;
	sec = second;

   sec =  ( s >= 0 && s < 60 ) ? s : 0; // validate second

    second = hour* 3600;
	second += minute * 60;
	second += sec;

   return *this; // enables cascading
} 

// get hour value
int Time::getHour() const 
{ 
	//Returns the amount of hours
   return second / 3600;
			 
} 

// get minute value
int Time::getMinute() const 
{ 
	int temp = second;
	temp %= 3600;
	temp /= 60;
	//Returns how many minutes
   return temp; 
} 

// get second value
int Time::getSecond() const 
{ 
	int temp = second;
	temp %= 3600;
	temp %= 60;
	//Returns the remaining seconds
   return temp; 
} 

// print Time in universal-time format (HH:MM:SS) 
void Time::printUniversal() const
{
   cout << setfill( '0' ) << setw( 2 ) << getHour() << ":"
      << setw( 2 ) << getMinute() << ":" << setw( 2 ) << getSecond();
} 

// print Time in standard-time format (HH:MM:SS AM or PM)
void Time::printStandard() const
{
	int hour = getHour();
	int minute = getMinute();
	int sec = getSecond();
   cout << ( ( hour == 0 || hour == 12 ) ? 12 : hour % 12 )
      << ":" << setfill( '0' ) << setw( 2 ) << minute
      << ":" << setw( 2 ) << sec << ( hour < 12 ? " AM" : " PM" );
}