///////////////////////////////////////////////////////////
// Softwarebauelemente II, Aufgabe O3.1
//
// author:			Stephan Brumme
// last changes:	May 15, 2001

#if !defined(AFX_DATE_H__A8EA7861_08E1_11D5_9BB7_A8652B9FDD20__INCLUDED_)
#define AFX_DATE_H__A8EA7861_08E1_11D5_9BB7_A8652B9FDD20__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000


// for basic class behaviour
#include "BasicClass.h"

#include <string>
using namespace std;

///////////////////////////////////////////////////////////
// the CDate class is based upon the Gregorian calender
// it DOES work for year between ca. 1600 and <2^31
// no year validation is performed
//
// general order of parameters: dd/mm/yyyy hh:mm:ss
class CDate : public CBasicClass
{
public:
	// constructor, default value is current date and time
    CDate();
    // copy constructor
    CDate(const CDate &date);
    // set user defined date at construction time
	CDate(unsigned int nDay,    unsigned int nMonth,    unsigned int nYear,
		  unsigned int nHour=0, unsigned int nMinute=0, unsigned int nSecond=0);

	// return class name
	virtual string ClassnameOf() const { return "CDate"; }

	// show attributes
	virtual string Show() const;
	// shows all internal attributes
	virtual string ShowDebug() const;

	// return today's date
	static void GetToday(unsigned int &nDay,  unsigned int &nMonth,  unsigned int &nYear, 
                         unsigned int &nHour, unsigned int &nMinute, unsigned int &nSecond);

	// validate a date
	virtual bool ClassInvariant() const;
	// determine whether it is a leap year
	static bool IsLeapYear(unsigned int nYear);

	// copy constructors
	// non virtual
	CDate& operator = (const CDate &date);
	// virtual
	virtual bool Copy (const CBasicClass *pClass);

	// compare two dates
	// non virtual
	bool operator == (const CDate &date) const;
	// virtual
	virtual bool EqualValue(const CBasicClass *pClass) const;

	
	// set attributes, returns validility of date
	void SetDay   (unsigned int nDay);
	void SetMonth (unsigned int nMonth);
	void SetYear  (unsigned int nYear);
	void SetHour  (unsigned int nHour);
	void SetMinute(unsigned int nMinute);
	void SetSecond(unsigned int nSecond);

	// return attributes
	unsigned int GetDay   () const;
	unsigned int GetMonth () const;
	unsigned int GetYear  () const;
	unsigned int GetHour  () const;
	unsigned int GetMinute() const;
	unsigned int GetSecond() const;

	// constants for month's names
	enum { JANUARY   = 1, FEBRUARY = 2, MARCH    = 3, APRIL    = 4,
		   MAY       = 5, JUNE     = 6, JULY     = 7, AUGUST   = 8,
		   SEPTEMBER = 9, OCTOBER  =10, NOVEMBER =11, DECEMBER =12 };

private:
	// attributes
	unsigned int m_nDay;
	unsigned int m_nMonth;
	unsigned int m_nYear;

	unsigned int m_nHour;
	unsigned int m_nMinute;
	unsigned int m_nSecond;
};


#endif // !defined(AFX_DATE_H__A8EA7861_08E1_11D5_9BB7_A8652B9FDD20__INCLUDED_)