//DRIVER
#include "date.h"
#include <stdio.h>
int main()
{	int n;
	try{
		Date d1(24,6,1983);
		Date d2(23,6,1985);
		printf("%d-%d-%d\n",d2.getDayOfMonth(),d2.getMonth(), d2.getYear());
		printf(" %s\n",d2.getDateAsString());
		printf("day=%s\n",d2.getCurrentDayName());
		printf("%d-%d-%d\n",d1.getDayOfMonth(),d1.getMonth(), d1.getYear());
		printf(" %s\n",d1.getDateAsString());
		printf("day=%s\n",d1.getCurrentDayName());
	}
	
	
	catch(date_exception& S)
	{	
		
		S.DisplayMsg();
	}
	catch(...)
	{
		printf("unknown error\n");
	}
	return 0;
}


//FILE DATE.H
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
//EXCEPTION
class date_exception{
	public:
//ctor
	date_exception(int x):err_id(x){
			numexcept++;
	}
//dtor
	~date_exception(){}
//cctor
	date_exception(const date_exception& S ):err_id(S.err_id){}
//assignment
	date_exception& operator=(const date_exception& S ){}
//service
	void DisplayMsg()const{
		printf("%s",err_msg[err_id]);
	}
	static int NumException(){
		return numexcept;
	}
	private:
	static int numexcept; 
	const int err_id;
	static char* err_msg[];
};

class Date {
protected:
	int year; 
	int month;
	int dayofmonth;
	static int arrdate[];
	static const char * arrmonth[];
	static  char * arrday[];
public:

//ctor
	Date(int , int , int )throw (date_exception);
	 Date ();
//cctor
	Date(const Date&);
	Date& operator=(const Date&);
//GET	
	int getDayOfMonth();
	int getMonth();
	int getYear();
	const char *getMonthName();
	char *getDateAsString();
	char *getCurrentDayName();
//SET
	void setDayOfMonth(int )throw (date_exception);
	void setMonth(int )throw (date_exception);
	void setMonthByName(const char *)throw (date_exception);
	void setYear(int )throw (date_exception);
	long int getNumberOfDaysSinceEpoch();
	 int isLeapYear();
};
#endif

//FILE DATE.CC
#include "date.h"
#include <stdio.h>
#include <string.h>
#include <stdlib.h>

//static member initialization
	int
	Date:: arrdate[]={0,31,28,31,30,31,30,31,30,31,31,30,31};

	const char *
	Date::arrmonth[]={"","January","February","March","April",
			"Mei","June","July","August","September","October","November","December"};
	char *
	Date::arrday[]={"sun","mon","tue","wed","thr","fri","sat"};
	int
	date_exception::numexcept=0;
	char*
	date_exception::err_msg[]={"date must > 0", "date too big",
			 	   "month must > 0", "month must <=12",
				   "minimum year 1970","month name not defined"
				   "input not valid in constructor"};
//CTOR
	Date::Date(int dd, int mm, int yy)throw (date_exception)
	{	if(yy < 1970) throw date_exception(6);
		year=yy;
		if(mm<1) throw date_exception(6);
		if(mm>12) throw date_exception(6);
		month=mm;
		if(dd <1) throw date_exception(6);
		if(isLeapYear()) arrdate[2]=29;
		if(dd > arrdate[mm] ) throw date_exception(6);
		dayofmonth=dd;
		arrdate[2]=28;
		
	}
	
	Date::Date()
	 {
		dayofmonth=1;
		month=1;
		year=1970;
	 }
//cctor
	Date::Date(const Date& D)
	{		
		dayofmonth=D.dayofmonth;
		month=D.month;
		year=D.year;
	}

	

//operator assignment
	
	Date& Date::operator=(const Date& D){
		printf("operator=\n");
		dayofmonth=D.dayofmonth;
		month=D.month;
		year=D.year;
		return *this;
	}
//GET
	int
		Date::getDayOfMonth()
	{	return dayofmonth;	}


	int
		Date::getMonth()
	{	return month;	}
	
	int
		Date::getYear()
	{	return year;	}
	
	const char*
		Date::getMonthName()
	{	return (arrmonth[month]);	}

  	char*
		Date::getDateAsString()
	{	char temp[35];
		char * StrDate;
		snprintf(temp,sizeof(temp),"%d %s %d",dayofmonth,arrmonth[month],year);
		
		StrDate=(char *) malloc(sizeof(char) * strlen(temp));
		strcpy(StrDate,temp);
		return(StrDate);
	}
	
	char *
		Date::getCurrentDayName()
	{	int idx=((getNumberOfDaysSinceEpoch()) % 7)+3;
		printf("jlh Hari= %d\n",getNumberOfDaysSinceEpoch());
		if(idx>7) idx-=7;
		return(arrday[idx]);
	}


//SET
	void
		Date::setDayOfMonth(int ndayofmonth)throw (date_exception)
	{	
		
		if(ndayofmonth < 1) throw date_exception(0);

		if(isLeapYear() && month==2){
			arrdate[2]=29;
		}
		else
		{
			if(ndayofmonth > arrdate[month])  throw date_exception(1);
			
			else dayofmonth=ndayofmonth;
		}
		arrdate[2]=28;
	}

	void 
		Date::setMonth(int nmonth)throw (date_exception)
	{
			
		if(nmonth > 12) throw date_exception(3);
		else{
			if (nmonth < 1) throw date_exception(2);
			else month=nmonth;
		}
	}

	void
		Date::setMonthByName(const char *monthname)throw (date_exception)
	{	
		int i=1;
		int found=0;
		while(i<=12 && !found){
			if (strcasecmp(arrmonth[i],monthname)==0){
				month=i;
				found=1;
			}
			else i++; 
			
		}
		if(i>12) throw date_exception(5);
	
	}

	 void
		 Date::setYear(int nyear)throw (date_exception)

	 {
		 if (nyear >= 1970) year=nyear;
		 else throw date_exception(4); 
	 }

	 long int 
		 Date::getNumberOfDaysSinceEpoch()
	 {	
		Date temp(1,1,1970);
		long int waktu=0;
		int i;
		while(temp.year< year){
			
			if(temp.isLeapYear()) {waktu+=366;}
			else{	waktu+=365;}
			
			temp.year++;
		}

		//sisa bulan
		
		if (isLeapYear()) arrdate[2]=29;
		for(i=1;i<month;i++ )
		{
			waktu+=arrdate[i];
		}
		arrdate[2]=28;
		//sisa hari
		waktu+=dayofmonth;
		return waktu;
		
	 }

	 int 
		 Date::isLeapYear()
	 {		return(year%4==0 && (year%100 !=0 || ( year%400==0)));  }