package de.tu_clausthal.in.mec;

import de.tu_clausthal.in.mec.gui.Logger;

import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import java.net.Socket;
import java.util.ArrayList;
import java.util.List;

/**
 * client class for testing purpose
 * helper for sending data from server to server
 */
public class Client extends Thread {

    /**
     * constant string to indicate end of header
     */
    private static final String END_HEADER = "END_HEADER";
    /**
     * constant string to indicate end of body
     */
    private static final String END_BODY = "END_BODY";


    /**
     * method to send new data
     *
     * @param p_url
     * @param p_port
     * @param p_data
     * @return
     */
    public static List<String> sendMessage(String p_url, int p_port, List<String> p_data) {
        List<String> response = new ArrayList<String>();

        try {
            Socket socket = new Socket(p_url, p_port);

            //write to server
            DataOutputStream out = new DataOutputStream(socket.getOutputStream());
            if (p_data != null) {
                for (String data : p_data) {
                    out.writeUTF(data);
                }
            }

            //read data from server and print (not needed maybe for testing purpose)
            DataInputStream in = new DataInputStream(socket.getInputStream());
            String line;
            while ((line = in.readUTF()) != null) {
                if (line.equals("END_BODY"))
                    break;
                Logger.loggerDebug(line);
            }

            //close connections
            out.close();
            in.close();
            socket.close();

        } catch (IOException e) {
            e.printStackTrace();
        }

        return response;
    }

}