import org.apache.xmlrpc.WebServer;

import java.util.Calendar;
import java.util.Locale;
import java.util.TimeZone;


public class RPCserver {

    /***
     * Method that give inforamtion about available methods
     * @return String with methods(parameters) - short description
     */

    public String show(){
        return "Available methods: \n" +
                "1. asy(int) - with given time parameter, returns value of time delayed by this value \n" +
                "2. echo(int, int) - returns sum of parameters \n" +
                "3. multiply(int, int) - returns multiplication of parameters \n" +
                "4. parseIntAndDoubleToString(int, double) - return concatenated parameters as string \n" +
                "5. upperAndConcatenate(string, string) - returns uppercase of concatenated strings \n";
    }

    /***
     * Method calculates sum of given two parameters
     * @param x int, is the first parameter to sum
     * @param y int, is the second parameter to sum
     * @return int sum of given parameters
     */
    public Integer echo(int x, int y){
        return x + y;
    }

    /***
     * Method calculates multiplication of two given parameters
     * @param x double first parameter to multiply
     * @param y double second parameter to multiply
     * @return double multiplication of givent Parameters
     */
    public Double multiply(double x, double y) {
        return x * y;
    }

    /***
     * Method create new string with capital letters from given two strings
     * @param s1 String first parameter to concatenate
     * @param s2 String second parameter to concatenate
     * @return concatenated two strings in uppercase
     */
    public String upperAndConcatenate(String s1, String s2) {
        return (s1 + s2).toUpperCase();
    }

    /***
     * Method parses int and double parameters to string as one string with space between then
     * @param i int parameter to parse
     * @param d double parameter to parse
     * @return concatenated with space two given parameters
     */

    public String parseIntAndDoubleToString(int i, double d) {
        return String.valueOf(i) + " " + String.valueOf(d);
    }

    /***
     * Return formatted place and time with the given place and language
     * @param place String named place that is returned with
     * @param language String two letters from the month display language is depend
     * @return concatenated place and data with format 'place, year month_in_language day hour-minute-second'
     */

    public static String getTime(String place, String language) {
        Locale lo = new Locale(language);
        Calendar calendar = Calendar.getInstance();
        return place + ", " + calendar.get(Calendar.YEAR) + " " + calendar.getDisplayName(Calendar.MONTH, Calendar.LONG, lo) + " " + calendar.get(Calendar.DAY_OF_MONTH) + " " + calendar.get(calendar.HOUR_OF_DAY) + "-" + calendar.get(calendar.MINUTE) + (String.format("-%02d",calendar.get(calendar.SECOND)));
    }

    public Integer asy(int x, int y, int z) {
        System.out.println("Generowanie liczb pierwszych");
        try {
            Thread.sleep(z);
        } catch (InterruptedException e) {
            e.printStackTrace();
            Thread.currentThread().interrupt();
        }
        System.out.println("Wygenerowano!");
        List <Integer> list = primeNumbersTill(x, y);
		for(Integer asd : list){
		System.out.print(asd +" ");
		}
    }
	public static List<Integer> primeNumbersTill(int z, int n) {
    return IntStream.rangeClosed(z, n)
      .filter(x -> isPrime(x)).boxed()
      .collect(Collectors.toList());
}
private static boolean isPrime(int number) {
    return IntStream.rangeClosed(2, (int) (Math.sqrt(number)))
      .filter(n -> (n & 0X1) != 0)
      .allMatch(n -> x % n != 0);
}

    public static void main(String[] args) {
        try {
            System.out.println("Starting server XML-RPC");
            int port = 10008;
            WebServer server = new WebServer(port);
            server.addHandler("myServer", new RPCserver());
            server.start();
            System.out.println("Server succesfully started");
            System.out.println("Listening to the port " + port);
            System.out.println("To stop server, press ctrl+c");
        } catch (Exception e) {
            System.err.println("Server XML-RPC: " + e);
        }
    }
}