package datetime;

import java.time.ZonedDateTime;
import java.time.ZoneId;
import java.time.Instant;
import java.time.temporal.ChronoUnit;
import java.util.Locale;
import java.util.ResourceBundle;
import java.util.Scanner;
import java.lang.String;


public class DateTimeProgramm {

    private static final String RU_LANG = "RU";

    public static void main(String[] args) {
        System.out.println("Выберете язык: \n en - EN\n ru - RU \n uz - UZ\n");

        Scanner scanner = new Scanner(System.in);
        String localeStr = scanner.next();
        ResourceBundle resourceBundle = ResourceBundle.getBundle(("messages"), Locale.forLanguageTag(localeStr));

        System.out.println(resourceBundle.getString("languageSelected"));
        System.out.println(resourceBundle.getString("insertTheNumber"));

        long num = scanner.nextLong();
        scanner.close();

        ZonedDateTime startTime = Instant.ofEpochMilli(0).atZone(ZoneId.of("Asia/Tashkent"));
        ZonedDateTime endTime = Instant.ofEpochMilli(num).atZone(ZoneId.of("Asia/Tashkent"));

        long daysBetween = ChronoUnit.DAYS.between(startTime, endTime);
        long weeksBetween = ChronoUnit.WEEKS.between(startTime, endTime);

        if (localeStr.equalsIgnoreCase(RU_LANG)) {
            printForRuLocale(weeksBetween, daysBetween, resourceBundle);
        } else {
            printForOtherLocale(weeksBetween, daysBetween, resourceBundle);
        }
        System.out.println(resourceBundle.getString("bye"));

    }

    private static void printForOtherLocale(long weeks, long days, ResourceBundle resourceBundle) {
        System.out.print(weeks + " ");
        if (weeks == 1) {
            System.out.print(resourceBundle.getString("weeks") + " ");
        } else {
            System.out.print(resourceBundle.getString("weeks1") + " ");
        }

        System.out.print(days + " ");

        if (days == 1) {
            System.out.print(resourceBundle.getString("day1") + " ");
        } else {
            System.out.print(resourceBundle.getString("day2") + " ");
        }
    }

    private static void printForRuLocale(long weeks, long days, ResourceBundle resourceBundle) {
        long lastDigitDay = days % 10;
        long lastDigitWeek = weeks % 10;
        long penultimateNumberDay = days / 10 % 10;
        long penultimateNumberWeek = weeks / 10 % 10;

        System.out.print(weeks + " ");
        if (penultimateNumberWeek == 1) {
            System.out.print(resourceBundle.getString("weeks2") + " ");
        } else if (lastDigitWeek == 1) {
            System.out.print(resourceBundle.getString("weeks") + " ");
        } else if (lastDigitWeek >= 2 & lastDigitWeek <= 4) {
            System.out.print(resourceBundle.getString("weeks1") + " ");
        } else
            System.out.print(resourceBundle.getString("weeks2") + " ");

        System.out.print(days + " ");

        if (penultimateNumberDay == 1) {
            System.out.println(resourceBundle.getString("day3") + " ");
        } else if (lastDigitDay == 1) {
            System.out.println(resourceBundle.getString("day1") + " ");
        } else if (lastDigitDay >= 2 & lastDigitDay <= 4) {
            System.out.println(resourceBundle.getString("day2") + " ");
        } else
            System.out.println(resourceBundle.getString("day3") + " ");
    }
}