package sk.stuba.fei.Zadanie2cvikouloha1;

public class MyDate {
    public int getDay() {
        return day;
    }

    public void setDay(int day) {
        this.day = day;
    }

    public int getMonth() {
        return month;
    }

    public void setMonth(int month) {
        this.month = month;
    }

    public int getYear() {
        return year;
    }

    public void setYear(int year) {
        this.year = year;
    }

    public String[] getStrMonthsSk() {
        return strMonthsSk;
    }

    public void setStrMonthsSk(String[] strMonthsSk) {
        this.strMonthsSk = strMonthsSk;
    }

    public String[] getStrDaysSk() {
        return strDaysSk;
    }

    public void setStrDaysSk(String[] strDaysSk) {
        this.strDaysSk = strDaysSk;
    }

    public int[] getDaysInMonths() {
        return daysInMonths;
    }

    public void setDaysInMonths(int[] daysInMonths) {
        this.daysInMonths = daysInMonths;
    }

    private int day;
    private int month;
    private int year;
    private static String[] strMonthsSk = {"Jan", "Feb", "Mar", "Apr", "Maj", "Jun", "Jul", "Aug", "Sep", "Okt", "Nov", "Dec"};
    private static String[] strDaysSk = {"Po", "Ut", "Str", "Stv", "Pia", "So", "Ne"};
    private static int[] daysInMonths = {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};

    public MyDate(int day, int month, int year) {
        this.day = day;
        this.month = month;
        this.year = year;
    }


    public void setDate(int day, int month, int year) {
        this.day = day;
        this.month = month;
        this.year = year;
    }


    public static boolean isLeapYear(int year) {
        if ((year % 4 == 0 && year % 100 != 0) || year % 400 == 0) return true;
        return false;
    }


    public static boolean isValidDate(int day, int month, int year) {
        if (year >= 1 && year <= 9999) {
            if (month >= 1 && month <= 12) {

                if (month == 2) {
                    if (isLeapYear(year)) {
                        if (day >= 1 && day <= 29) return true;
                        else return false;
                    } else if (day >= 1 && day <= 28) return true;
                    else return false;

                } else {
                    if (day >= 1 && day <= daysInMonths[month - 1]) {
                        return true;
                    } else return false;
                }

            } else return false;
        } else return false;
    }

    public MyDate nextDay(int day, int month, int year) {
        if (month == 12 && day == 31) {
            this.year += 1;
            this.month = 1;

        } else if (month >= 1 && month < 12) {

            if (month == 2) {
                if (isLeapYear(year)) {
                    if (day >= 1 && day < 29) this.day++;
                    else {
                        this.day = 1;
                        this.month++;
                    }
                } else if (day >= 1 && day < 28) this.day++;
                else {
                    this.day = 1;
                    this.month++;
                }
            } else {
                if (day >= 1 && day < daysInMonths[month - 1]) {
                    this.day++;
                } else this.day = 1;
                this.month++;
            }

        }
        return this;
    }


    public MyDate nextYear() {
        if (year < 9999) {
            year++;
        }
        return this;
    }

    public static int getDayOfWeek(int d, int m, int y) {
        int t[] = {0, 3, 2, 5, 0, 3, 5, 1, 4, 6, 2, 4};
        y -= (m < 3) ? 1 : 0;
        return (y + y / 4 - y / 100 + y / 400 + t[m - 1] + d) % 7;
    }
    public static void nameOfDay(int d)
    {
        switch (d){
            case 1:
                System.out.println(strDaysSk[0]);break;
            case 2:
                System.out.println(strDaysSk[1]);break;
            case 3:
                System.out.println(strDaysSk[2]);break;
            case 4:
                System.out.println(strDaysSk[3]);break;
            case 5:
                System.out.println(strDaysSk[4]);break;
            case 6:
                System.out.println(strDaysSk[5]);break;
            case 0:
                System.out.println(strDaysSk[6]);break;
        }
    }

    @Override
    public String toString() {
        return
                "day=" + day +
                        ", month=" + month +
                        ", year=" + year
                ;
    }
}