turing test socket draft

package pgdp.test;

import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;

import java.io.*;
import java.net.ConnectException;
import java.net.ServerSocket;
import java.net.Socket;
import java.net.UnknownHostException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

public class PinguinTest {

  @BeforeEach
  public static void main(String[] args) {
    Socket sock = null;
    boolean server = false;
    try {
      // connection established
      ServerSocket serverSock = new ServerSocket(25565);
      System.out.println("Server started, waiting for connections...");
      sock = serverSock.accept();
      serverSock.close();
      server = true;
    } catch (UnknownHostException e) {
      System.err.println("Unknown host, try again!");
    } catch (NumberFormatException e) {
      System.err.println("Port invalid, try again!");
    } catch (ConnectException e) {
      System.err.println("Connection refused, try again!");
    } catch (IOException e) {
      System.err.println("I/O error, try again!");
    }

    try (BufferedReader in = new BufferedReader(new InputStreamReader(sock.getInputStream()));
         PrintWriter out = new PrintWriter(sock.getOutputStream(), true)) {
      if (server) {
        System.out.println("Connected! You can now send something.");
        String input = in.readLine();
        if (input.equals("Was ergibt die folgende Summe?")) {
          BufferedReader in2 = new BufferedReader(new InputStreamReader(sock.getInputStream()));
          input = in2.readLine();
          if (input.matches("<int>( + <int>)*")) {
            out.println(input);
            out.flush();
            long sum = Arrays.stream(args[0].split("\\\\d+")).mapToLong(Long::parseLong).sum();
            System.out.println(sum);
          } else {
            System.err.println("Das ist keine Summe!");
          }
        } else if (input.equals("Zähle die Fische in")) {
          BufferedReader in2 = new BufferedReader(new InputStreamReader(sock.getInputStream()));
          input = in2.readLine();
          if (input.length() == 0) {
            System.out.println(0);
          }
          List<String> words = new ArrayList<String>();
          Arrays.stream(input.split("\\\\w+")).forEach(word -> {
            int i = Integer.parseInt(word);
            if (i == 0 && word.contains("Fisch") || word.contains("fisch")) {
              words.add(word);
            }
          });
          int quantity = (int) words.stream().count();
          out.println(input);
          out.flush();
          System.out.println(quantity);
        }

        // jump to step 1
        PinguinTest.main(new String[1]);
        if (!args[0].equals("Was ergibt die folgende Summe?") || !args[0].equals("Zähle die Fische in")) {
          out.println(args[0]);
          out.flush();
          System.err.println("Tut mir leid, das habe ich nicht verstanden.");
        }
        BufferedReader in3 = new BufferedReader(new InputStreamReader(sock.getInputStream()));
        args[0] = in3.readLine();
        if (args[0].contains("Bye") || args[0].contains("Goodbye") || args[0].contains("Servus")
          || args[0].contains("Bis dann")) {
          out.println(args[0]);
          out.flush();
          System.out.println(args[0]);
        } else {
          System.out.println("See ya in a bit.");
        }
      }
    } catch (IOException ex) {
      System.err.println("Connection error, exit.");
    } finally {
      try {
        sock.close();
      } catch (IOException e) {
        System.err.println("Connection failed.");
      }
    }
  }


  @Test
  public void Test01() {
    // tomorrow
  }

}