package graphtea.plugins.commandline.commands;

import bsh.ConsoleInterface;
import bsh.Interpreter;
import graphtea.platform.core.BlackBoard;
import graphtea.platform.core.exception.ExceptionHandler;
import graphtea.platform.lang.CommandAttitude;
import graphtea.plugins.commandline.Shell;
import graphtea.plugins.main.GraphData;

import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintStream;
import java.io.Reader;
import java.net.ServerSocket;
import java.net.Socket;

/**
 * @author Mohamad Ali Rostami
 * @email rostamiev@gmail.com
 */

public class ShellServerCommands {

    BlackBoard bb;
    GraphData datas;
    Thread thread;

    public ShellServerCommands(BlackBoard bb) {
        this.bb = bb;
        datas = new GraphData(bb);
    }

    @CommandAttitude(name = "run_server", abbreviation = "_rs"
                , description = "")

    public void run() {
        final Shell shell = Shell.getCurrentShell(bb);
            thread = new Thread() {
            public void run() {
                try {
                    ServerSocket ss = new ServerSocket(1234);
                    final Socket s = ss.accept();
                    ConsoleInterface ci = new ConsoleInterface() {
                        Reader r = new InputStreamReader(s.getInputStream());

                        public Reader getIn() {
                            try {
                                return new InputStreamReader(s.getInputStream());
                            } catch (IOException e) {
                                ExceptionHandler.catchException(e);
                            }
                            return null;

                        }

                        public PrintStream getOut() {
                            try {
                                return new PrintStream(s.getOutputStream());
                            } catch (IOException e) {
                                ExceptionHandler.catchException(e);  //To change body of catch statement use File | Settings | File Templates.
                            }
                            return null;
                        }

                        public PrintStream getErr() {
                            try {
                                return new PrintStream(s.getOutputStream());
                            } catch (IOException e) {
                                ExceptionHandler.catchException(e);  //To change body of catch statement use File | Settings | File Templates.
                            }
                            return null;
                        }

                        public void println(Object object) {

                            this.getOut().println(object);
                        }

                        public void print(Object object) {
                            this.getOut().print(object);
                        }

                        public void error(Object object) {
                            this.getOut().println(object);
                        }
                    };

                    Interpreter interpreter = new Interpreter(ci);
                    interpreter.eval(shell.getEvaluations());
                    interpreter.set("me", shell.get("me"));
                    interpreter.set("current_interpreter", interpreter);
                    interpreter.run();
                } catch (Exception e) {
                    ExceptionHandler.catchException(e);
                }
            }
        };
        thread.start();
    }

    @CommandAttitude(name = "exit_server", abbreviation = "_rs"
                , description = "")

    public void exit() {
        thread.stop();
    }
}