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/*Server class MD5: 54f28d1bbcaf782e3f02d6d15fd43b60*/
package com.jelastic.api.utils;

import java.io.IOException;
import java.net.IDN;
import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.net.Socket;

/**
 * @name Jelastic API Client
 * @version 8.11.2
 * @copyright Jelastic, Inc.
 */
public class JavaNetUtils {

    public static boolean isReachableHost(String ipAddress, int timeout) {
        try {
            InetAddress address = InetAddress.getByAddress(getStringIpAsBytes(ipAddress));
            if (address.isReachable(timeout)) {
                return true;
            } else {
                return false;
            }
        } catch (Exception ex) {
            ex.printStackTrace();
            return false;
        }
    }

    static boolean canConvertToPunycode(String domain) {
        try {
            IDN.toASCII(domain);
            return true;
        } catch (IllegalArgumentException e) {
            return false;
        }
    }

    public static String convertToPunycode(String value) {
        if (value == null) {
            return null;
        }
        return IDN.toASCII(value);
    }

    public static byte[] getStringIpAsBytes(String ipAddress) {
        String[] ints = ipAddress.split("\\.");
        byte[] b = new byte[4];
        b[0] = new Integer(ints[0]).byteValue();
        b[1] = new Integer(ints[1]).byteValue();
        b[2] = new Integer(ints[2]).byteValue();
        b[3] = new Integer(ints[3]).byteValue();
        return b;
    }

    public static boolean isTCPPortReachable(String host, int port, int timeout) {
        try (Socket socket = new Socket()) {
            socket.connect(new InetSocketAddress(host, port), timeout);
            return true;
        } catch (IOException e) {
            e.printStackTrace();
            return false;
        }
    }
}