/*
 *  chap11.cpp
 */

#include <iostream>
using namespace std;

/*
 *  Time --  a structure for manipulating time of day.
 */
struct Time {
    // instance variables
    int hour, minute;
    double second;

    // constructors
    Time (int hour, int min, double secs);
    Time (double secs);

    // modifiers
    void increment (double secs);

    // member functions
    void print () const;
    bool after (const Time& time2) const;
    Time add (const Time& t2) const;
    double convertToSeconds () const;
};

/*
 * Time member function definitions
 */

void Time::print () const {
    cout << hour << ":" << minute << ":" << second << endl;
}

void Time::increment (double secs) {
    second += secs;

    while (second >= 60.0) {
        second -= 60.0;
        minute += 1;
    }
    while (minute >= 60) {
        minute -= 60;
        hour += 1;
    }
}

bool Time::after (const Time& time2) const {
    if (hour > time2.hour) return true;
    if (hour < time2.hour) return false;

    if (minute > time2.minute) return true;
    if (minute < time2.minute) return false;

    if (second > time2.second) return true;
    return false;
}

double Time::convertToSeconds () const {
    const int minutes = hour * 60 + minute;
    const double seconds = minutes * 60 + second;
    return seconds;
}

Time::Time (double secs) {
    hour = int (secs / 3600.0);
    secs -= hour * 3600.0;
    minute = int (secs / 60.0);
    secs -= minute * 60.0;
    second = secs;
}

Time::Time (int h, int m, double s)
{
    hour = h;  minute = m;  second = s;
}

Time Time::add (const Time& t2) const {
    const double seconds = convertToSeconds () + t2.convertToSeconds ();
    const Time time (seconds);
    return time;
}


int main() {
    Time currentTime ( 9, 14, 30.0 );
    Time testTime (3600);
    testTime.print();
    currentTime.print ();
    currentTime.increment (500.0);
    currentTime.print ();
    Time time (3600);
    time.print();
    Time ready = time.add(testTime);
    ready.print();

    return 0;
}