import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.*;

class K {
    public static void main(String args[]) throws Exception
    {
        BufferedReader inFromUser = new BufferedReader(new InputStreamReader(System.in));
        DatagramSocket clientSocket = new DatagramSocket();
        //TODO: try catch if local host is not defined
        InetAddress IPAddress = InetAddress.getByName("localhost");

        byte[] sendData;
        // Full path to the file we need to GET
        System.out.print("The hostname you want to send request to: ");
        String hostname = inFromUser.readLine();
        System.out.print("The path to the file (optional): ");
        String pathname = inFromUser.readLine();

        WPSPacket WPSPacket = new WPSPacket(true, hostname, pathname);
        sendData = WPSPacket.makeRequest();
        System.out.println("\n============================");
        System.out.println("Making new WPS request with: ");
        System.out.println("============================");
        System.out.println("Hostname: " + hostname);
        System.out.println("Pathname: " + pathname);
        System.out.println("");

        DatagramPacket sendPacket = new DatagramPacket(sendData, sendData.length, IPAddress, 9876);
        clientSocket.send(sendPacket);
        System.out.println("============================");
        System.out.println("RESPONSE FROM WPS: ");
        System.out.println("============================");

        while (true) {
            // Read response from the UPD socket
            byte[] receiveData = new byte[1024];
            DatagramPacket receivePacket = new DatagramPacket(receiveData, receiveData.length);
            clientSocket.receive(receivePacket);
            WPSPacket wpsPacket = WPSPacket.readPacket(receivePacket.getData());
            // Print the response to std out
            System.out.println(wpsPacket.getContent());
//            clientSocket.close();
        }
    }
}