//Andrus Epkin, Tarvo  Tromp, Marge Nurme, Mait Kelindeman. 11.12.2000

//JUTUTOA KLIENT VERSIOON 1.0

import java.applet.Applet;
import java.awt.*;
import java.awt.Label;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.io.*;
import java.net.*;



public class chat2 extends Applet implements ActionListener{
  
       TextField username=new TextField("");
       Button ok=new Button("Enter");
       Label silt1=new Label(); //Silt, kuhu ilmub serveri poolt saadetud tekst.

       //Teise osa väljad
       TextField tekst=new TextField("kirjuta siia");  //Tekstiväli
       TextArea jutt=new TextArea("",22,19, TextArea.SCROLLBARS_VERTICAL_ONLY); //Tekstiväli, kuhu ilmub sisestatud tekst
       Label[] sildid=new Label[50]; //Sildid, kuhu peaksid ilmuma hetkel jutukas olevate kasutajate nimed.
 
       int nimedearv=0; 

       Socket sc;
       PrintWriter kasutaja;
       PrintWriter valja;
       
  public chat2(){
    setLayout(new BorderLayout());
    
      Panel p1=new Panel(new BorderLayout());
      
      Panel enterchat=new Panel(new GridLayout(5,3)); //Siin joonistatakse esimene aken
      enterchat.add(new Panel());
      enterchat.add(new Panel());
      enterchat.add(new Panel());
      enterchat.add(new Panel());
      enterchat.add(new Panel());
      enterchat.add(new Panel());
      enterchat.add(new Panel());
      Panel p2=new Panel(new BorderLayout());
      p2.add(silt1, BorderLayout.NORTH);
      p2.add(username, BorderLayout.CENTER);
      p2.add(ok, BorderLayout.SOUTH);
      enterchat.add(p2);
      add(enterchat);
      enterchat.add(new Panel());
      enterchat.add(new Panel());
      enterchat.add(new Panel());
      enterchat.add(new Panel());
      enterchat.add(new Panel());
      enterchat.add(new Panel());
      enterchat.add(new Panel());

      ok.addActionListener(this);
      
   try{ //Siin üritatakse luua ühendus serveriga ja omistada pistikule nimi
      sc=new Socket("127.0.0.1", 3001);
      kasutaja=new PrintWriter(sc.getOutputStream(), true);
      new ruumiloim(sc, jutt, this);
   }catch(Exception probleem){
         System.out.println(probleem);
    }
  }
  
  public void actionPerformed(ActionEvent e){ //Tegevus, mis toimub kui on vajutatud "Enter" klahvi klaviatuuril enterit        
        if(e.getSource()==ok){
        kasutaja.println(username.getText());
        System.out.println("Username sisestatud");
        
        }else{
         kasutaja.println(tekst.getText());
         tekst.setText("");
         System.out.println("Done!");
         }
  }
  
  
  public void teine(){
  setLayout(new BorderLayout()); //Siin kujundatakse teine aken.

      Panel p3=new Panel(new BorderLayout());
      p3.add(jutt, BorderLayout.NORTH);
      p3.add(tekst, BorderLayout.CENTER);
      add(p3,  BorderLayout.CENTER);
      
      Panel p4=new Panel(new BorderLayout());
     
      tekst.addActionListener(this);
     
      Panel nimed=new Panel(new GridLayout(20,1));
      
      for(int x=0;x<15;x=x+1){
         nimed.add(sildid[x]=new Label(""));
         p4.add(nimed);
      };
      ScrollPane sp=new ScrollPane();
      sp.add(p4);
      add(sp, BorderLayout.EAST);
      validate();
     
  }
  
  
  public static void main(String argumendid[]){  //Siin joonistatakse freimid
     Frame f=new Frame();
     f.add(new chat2());
     f.setSize(500,400);
     f.setVisible(true);
     f.addWindowListener(
      new WindowAdapter(){
        public void windowClosing(WindowEvent e){
        System.exit(0);
        }
  	   }
     );
   }

 class ruumiloim extends Thread{
   Socket sc;
   TextArea ta;
   chat2 peremees;
   public ruumiloim(Socket sc1, TextArea ta1,chat2 pe1){
     sc=sc1;
     ta=ta1;
     peremees=pe1;
     start();
   }
   public void run(){
     try{
     
       BufferedReader sisse=new BufferedReader(			//Kasutajanime sisselugemine
         new InputStreamReader(sc.getInputStream())
       );
       
     String rida=null;
     do{
     rida=sisse.readLine(); //Loetakse rida sisse
     peremees.silt1.setText(rida); //Silt1-le pannakse sisse loetud rea tekst.
       if (silt1.getText().equals("Selline nimi on olemas!")){
           System.out.println(silt1);
           Thread.sleep(1000);
           peremees.silt1.setText("Proovi uuesti");
           
       }else{
          removeAll();
          teine();
        }      
     }while(silt1.getText().equals("Proovi uuesti"));
     while(rida!=null){
        ta.setText(ta.getText()+"\n"+rida);
        ta.setCaretPosition(ta.getText().length());
     rida=sisse.readLine();
     }
     
     }catch(Exception viga){
        System.out.println(viga);
      }
   }
 }

}