//
//	...
//
//	File: 		time2.cpp
//	Compile:	g++ time1.cpp -o time1.out
//	Run:		./time.out 
//	Goal: 		OOP inheritance - Time, ExtTime, ...
//

#include <iostream>

using namespace std;

class Time
{       int hrs, mins, secs;
public:
	// constructors
        Time()		// 0:0:0
        {       hrs = 0; mins = secs = 0;      }
	Time(int h, int m, int s)
	{	hrs = h; mins = m; secs = s;	}
	void Set(int h, int m, int s)
	{	hrs = h; mins = m; secs = s;    }
	// observers
	void Write() const	// hh:mm:ss
	{	cout << hrs << ":" << mins << ":" << secs;	}
	void Increment()
	{	secs ++;	}
	bool Equal( Time x) const
	{	if(hrs==x.hrs && mins==x.mins && secs==x.secs)
			return true;
		else 	return false;
	}	
};

// p.159
enum ZoneType {EST, CST, MST, PST, EDT, CDT, MDT, PDT};

// define a new class - subclass ExtTime from superclass Time
class ExtTime : public Time
{	ZoneType zone;	// extra data member
public:
	ExtTime()	// 0:0:0 EST
	{	zone = EST;	}
	ExtTime(int h, int m, int s, ZoneType z)
	: Time (h, m, s)
	{	zone = z;	}
	// p.162
	void Set(int h, int m, int s, ZoneType z)
	{	Time :: Set(h, m, s);
		zone = z;
	}
	void Write() const
	{	Time :: Write();	// hh:mm:ss
		string zoneString[] = {"EST", "CST", "MST", "PST", 
				"EDT", "CDT", "MDT", "PDT"}; 
		cout << " " << zoneString[zone];
	}
};

int main()
{
	// Q: Def. obj of ExtTime x with 13:30:00 EST?
	ExtTime x(13, 30, 0, EST);

	// Q: Out 
	x.Write();


	cout << "\n\nDone.\n\n";
	return 0;
}