//
// Created by Vlad on 18.01.2017.
//

#ifndef PREPAREFROMEXAMS_TEST_H
#define PREPAREFROMEXAMS_TEST_H

#include <iostream>

class Date {
private:
    const int dayInMonth[12] = {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
    const int dayInMonthV[12] = {31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
    long date;

    Date(long date) {
        this->date = date;
    }

    long threeToOne(int day, int month, int year) {
        long date = 0;
        date = date + year * 365 + year / 4 - year / 100 + year / 400;
        bool isV = yearIsV(year);
        for (int i = 0; i < month - 1; i++) {
            date += isV ? dayInMonthV[i] : dayInMonth[i];
        }
        date += day;
        return date;
    }

    void oneToThree(long date, int &day, int &month, int &year) {
        while (date >= 365) {
            date -= yearIsV(year) ? 366 : 365;
            year++;
        }
        bool isV = yearIsV(year);
        std::cout << date << std::endl;
        while (date >= (isV ? dayInMonthV[month] : dayInMonth[month])) {
            date -= isV ? dayInMonthV[month] : dayInMonth[month];
            month++;
        }
        month++;
        day = date + 1;
    }

    bool yearIsV(int year) {
        return ((year % 4 == 0 and year % 100 != 0) or (year % 400 == 0));
    }

public:
    Date(int day, int month, int year) {
        this->date = threeToOne(day, month, year);
//        long test = threeToOne(day, month, year);
//        int d = 0, m = 0, y = 0;
//        std::cout << test << std::endl;
//        oneToThree(test, d, m, y);
//        std::cout << d << ":" << m << ":" << y;
    }

    Date operator+(Date &d) {
        return Date(this->date + d.date -366);
    }

    friend std::ostream &operator<<(std::ostream &os, Date &date) {
        int day = 0;
        int month = 0;
        int year = 0;
        date.oneToThree(date.date, day, month, year);
        os << day << ":" << month << ":" << year;
        return os;
    }

};


#endif //PREPAREFROMEXAMS_TEST_H