package datetime;

import sun.util.resources.cldr.ru.CalendarData_ru_RU;

import java.security.acl.LastOwnerException;
import java.time.LocalDateTime;
import java.time.ZonedDateTime;
import java.time.ZoneId;
import java.time.Instant;
import java.time.format.DateTimeFormatter;
import java.time.temporal.ChronoUnit;
import java.util.Locale;
import java.util.MissingResourceException;
import java.util.InputMismatchException;
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) {
        try {
            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();
            Locale.setDefault(new Locale(localeStr, localeStr));
            ResourceBundle resourceBundle = ResourceBundle.getBundle("messages");

            System.out.println(resourceBundle.getString("languageSelected"));
            long msFromEpoch = Instant.ofEpochMilli(0L).until(Instant.now(), ChronoUnit.MILLIS);
            int daysFromEpoch = (int) (msFromEpoch / 86400000);
            int yearsFromEpoch = daysFromEpoch / 365;

            System.out.println(resourceBundle.getString("date") + ": " +
                    LocalDateTime.now().format(DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss")));
            System.out.println(resourceBundle.getString("moment") + " " + msFromEpoch + " " +
                    resourceBundle.getString("mSec") + " " + daysFromEpoch + " " +
                    resourceBundle.getString("days") +
                    " " + yearsFromEpoch + " " + resourceBundle.getString("years"));

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

            long num = scanner.nextLong();
            Instant dateTime = Instant.ofEpochMilli(num);
            scanner.close();

            ZonedDateTime zonedDateTime = dateTime.atZone(ZoneId.of("Asia/Tashkent"));
            System.out.println(zonedDateTime.format(DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss")));

            long daysBetween = ChronoUnit.DAYS.between(Instant.ofEpochMilli(0L), dateTime);
            long weeksBetween = daysBetween / 7;

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

            System.out.print(weeksBetween + " ");
            printForOtherLocale(dateTime, Locale.getDefault());

            if (lastDigitWeek == 1) {
                System.out.print(RESOURCE_BUNDLE.getString("weeks") + " ");
            } else if (lastDigitWeek >= 2 & lastDigitWeek <= 14) {
                System.out.print(RESOURCE_BUNDLE.getString("weeks1") + " ");
            } else
                System.out.print(RESOURCE_BUNDLE.getString("weeks2") + " ");

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

            if (lastDigitDay == 1) {
                System.out.println(RESOURCE_BUNDLE.getString("day1") + " ");
            } else if (lastDigitDay >= 2 & lastDigitDay <= 14) {
                System.out.println(RESOURCE_BUNDLE.getString("day2") + " ");
            } else
                System.out.println(RESOURCE_BUNDLE.getString("day3") + " ");


*/
        } catch (MissingResourceException | InputMismatchException exc) {
            System.out.println("Вы ввели недопустимое значение.");
        }
    }

    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") + " ");
    }
}