// DateProject.cpp : Defines the entry point for the console application.
//
/*specification: Create a date class with constructors and a destructor */
#include "stdafx.h"


#include <iostream>
#include <sstream>
#include <string>

using namespace std;



class FancyDateClass {
private:
    int day;
    int month;
    int year;    
    static int objectCount;
public:

    string toString(void);
    string getMonth(void);
    string getDayOfWeek(void);
    int julianDate(void);
    bool isLeapYear(void);
    
    
    
    
    
    int setDate(int theDay, int theMonth, int theYear);
//    int subtract(FancyDateClass &aDateObj);  
     void getDate(int &theDay, int &theMonth, int &theYear);
     void displayDate(void);

    
    //constructors
    FancyDateClass();
    FancyDateClass(int theDay, int theMonth, int theYear);
    FancyDateClass(const FancyDateClass &aDateObj);     
     //destructor
    ~FancyDateClass();  
};

int FancyDateClass::objectCount = 0;

// ================================================================================
=====================================


int main (void){
  


















}



// ================================================================================
=====================================
FancyDateClass::FancyDateClass(){
    //default constructor
    day = 0;
    month = 0;
    year = 0;
    objectCount++;

}

FancyDateClass::FancyDateClass(int theDay, int theMonth, int theYear){
     //parameterized constructor
     setDate(theDay, theMonth, theYear);
     objectCount++;
}

FancyDateClass::FancyDateClass(const FancyDateClass &aDateObj) {
    //copy constructor
    day = aDateObj.day;
    month = aDateObj.month;
    year = aDateObj.year;
    objectCount++;
}



FancyDateClass::~FancyDateClass() {
    //destructor
    objectCount--;
    cout << "Number of DateClass objects instantiated " << objectCount << endl;
}

int FancyDateClass::julianDate(void){
    //return the Julian date for the current date.  The equation to calculate the Julian date is:
    //this conversion algorithm is thanks to the work of Fliegel & Van Flandern

    int theJulianDate = ( 1461 * ( year + 4800 + ( month - 14 ) / 12 ) ) / 4 + ( 367 * ( month - 2 - 12 * ( ( month - 14 ) / 12 ) ) ) / 12 - ( 3 * ( ( year + 4900 + ( month - 14 ) / 12 ) / 100 ) ) / 4 + day - 32075;

    return theJulianDate;
}

string FancyDateClass::getDayOfWeek(void){
    // return the day of week (M, Tu, Wed...) based on the date.  
    // Use the follow equation to calculate a day of week integer:
    
    int day = julianDate() % 7;
    

    return day;

    // Where: Monday = 0, Tues = 1, Wed = 3
        
}

bool FancyDateClass::isLeapYear(){

    bool leapYear = (((year % 4 == 0) && (year % 100 != 0)) || (year % 400 == 0));

    return leapYear;
    
}
/*
    string FancyDateClass::toString(void){
    std::stringstream ss;
    int month = 10;
    string str;
    ss << month;
    ss >> str;

    return month;

}
*/



int FancyDateClass::setDate(int theDay, int theMonth, int theYear){
    //gives the member variables a value
    //returns an error code if invalid date is entered
    //Error codes: 0 -valid date, 3 - bad year, 2 - bad month, 1 bad day
    
    //check each arguement to ensure it is valid
    int dateCode = 0;

    //check the year
    //check the year
    if(theYear < 1)
        dateCode = 3;
    //check the month

    if(theMonth < 1 || theMonth > 12)
        dateCode = 2;

    //check the day
    int maxDays = 31;
    switch (theMonth) {
        case 2:
            maxDays = 28;
            break;
        case 4:
        case 6:
        case 9:
        case 11:
            maxDays = 30;
            break;
        break;
        case 1:
        case 3:
        case 5:
        case 7:
        case 8:
        case 10:
        case 12:
            maxDays = 31;
            break;
    }
    if (theDay < 1 || theDay > maxDays)
        dateCode = 1;
    
    //set the values right or wrong...
    month = theMonth;
    day = theDay;
    year = theYear;
    
    return dateCode;
}
void FancyDateClass::getDate(int &theDay, int &theMonth, int &theYear){
//set the value of the arguements
    theDay = day;
    theMonth = month;
    theYear = year;
}

void FancyDateClass::displayDate(void) {
    //display the date to the screen
    cout <<"\n\n";
    cout << "day : " << day << endl
        << "month : " << month << endl
        << "year : " << year << endl;
}

string FancyDateClass::getDayOfWeek(void){
    // return the day of week (M, Tu, Wed...) based on the date.  
    // Use the follow equation to calculate a day of week integer:
    
    int day = julianDate() % 7;
    std:string sday;

    switch(day){
        case 0:
            if(day == 0)
            sday = 'monday';  // monday = 0
            break;
        case 1:
            if(day == 1)
            sday = 'tuesday';                 
            break;
        case 2:
            if(day == 2)
            sday = 'wednesday'    
            break;
        case 3:
            if(day == 3)
            sday = 'thursday';
            break;
        case 4:
            if(day == 4)
            sday = 'friday';
            break;
        case 5:
            if(day == 5)
            sday = 'saturday';
            break;
        case 6:
            if(day == 6)
            sday = 'sunday';
            break;
    }
                
    

    return sday;

    // Where: Monday = 0, Tues = 1, Wed = 3
        
}