import java.awt.*;
import java.applet.*;
import java.io.*;
import java.net.*;
import java.awt.image.*; 

public class ExampleFrame extends Frame {
  PetaSIM   outerParent;
  Button    examp[], exPic[], exRun[];
  Button    runButton,closeButton;
  Checkbox  drawPic;
  TextField exTxt[];
  int exNum, exPicNum;

  ExampleFrame(PetaSIM target) {
    this.outerParent = target;
    int j;
    Panel examplePanel = new Panel();
    Panel exPanel[];
    Panel cntPanel = new Panel();
    examplePanel.setLayout(new GridLayout(4,1,0,0));
    
    this.resize(640, 280);
    setFont(new Font("Helvetica", Font.PLAIN, 14));
    
    int num = 4;  // no. of examples
    exPanel = new Panel[num];
    examp = new Button[num];
    exPic = new Button[num];
    exRun = new Button[num];
    exTxt = new TextField[num];
    for(int i=0; i<num; i++) {
      j = i + 1;
      exPanel[i] = new Panel();
      examp[i] = new Button(" Example " +j+ " ");
      exPic[i] = new Button("Picture " + j);
      //exRun[i] = new Button("Run" + j);
      exTxt[i] = new TextField(69);
      exPanel[i].add(examp[i]);
      exPanel[i].add(exPic[i]);
      //exPanel[i].add(exRun[i]);
      exPanel[i].add
	(new Label(" Result " +j+":",Label.RIGHT));
      exPanel[i].add(exTxt[i]);
      examplePanel.add(exPanel[i]);
    }

    cntPanel.setLayout(new FlowLayout(FlowLayout.CENTER));
    drawPic = new Checkbox("Picture", null, true);
    runButton   = new Button(" Run ");
    closeButton = new Button(" Close ");

    //cntPanel.add(drawPic);
    //cntPanel.add(new Label("        "));
    //cntPanel.add(runButton);
    //cntPanel.add(new Label("        "));
    cntPanel.add(closeButton);

    setLayout(new BorderLayout());
    add("Center", examplePanel);
    add("South", cntPanel);
    
    runButton.disable();
  }


  public boolean action(Event evt, Object obj) {    
    String command = (String)obj;
    int x=800 ,y=500;

    if(evt.target.equals(exPic[0]) ||
       evt.target.equals(exPic[1]) ||
       evt.target.equals(exPic[2]) ||
       evt.target.equals(exPic[3])   ) {
      if (command.equals("Picture 1")) 
	{ exPicNum = 1; x = 780; y = 500; }
      else if (command.equals("Picture 2")) 
	{ exPicNum = 2; x = 780; y = 500; }
      else if (command.equals("Picture 3")) 
	{ exPicNum = 3; x = 774; y = 520; }
      else if (command.equals("Picture 4")) 
	{ exPicNum = 4; x = 774; y = 520; }
      Image pic = outerParent.getPic(exPicNum);
      PictureFrame picFrame = new PictureFrame(pic);
      picFrame.resize(x, y);
      picFrame.setTitle("Example "+exPicNum);
      picFrame.show();
    }

    if (evt.target instanceof Button) {
      String fileName;
      if (command.equals(" Example 1 ")) {
	exNum = 0;
	exTxt[exNum].setText(" Please Wait........ ");
	outerParent.resultTxtArea.setText(" Please Wait........ ");
	fileName = "ex1";
	getExampleFromServer("ex1");
	outerParent.sendComanndToServer();
	exTxt[exNum].setText
	  (outerParent.resultTxtArea.getText());
	//runButton.enable();
      }
      else if (command.equals(" Example 2 ")) {
	exNum = 1;
	exTxt[exNum].setText(" Please Wait........ ");
	outerParent.resultTxtArea.setText(" Please Wait........ ");
	fileName = "ex2";
	getExampleFromServer("ex2");
	outerParent.sendComanndToServer();
	exTxt[exNum].setText
	  (outerParent.resultTxtArea.getText());
	//runButton.enable();
      }
      else if (command.equals(" Example 3 ")) {
	exNum = 2;
	exTxt[exNum].setText(" Please Wait........ ");
	outerParent.resultTxtArea.setText(" Please Wait........ ");
	fileName = "ex3";
	getExampleFromServer("ex3");
	outerParent.sendComanndToServer();
	exTxt[exNum].setText
	  (outerParent.resultTxtArea.getText());
	//runButton.enable();
      }
      else if (command.equals(" Example 4 ")) {
	exNum = 3;
	exTxt[exNum].setText(" Please Wait........ ");
	outerParent.resultTxtArea.setText(" Please Wait........ ");
	fileName = "ex4";
	getExampleFromServer("ex4");
	outerParent.sendComanndToServer();
	exTxt[exNum].setText
	  (outerParent.resultTxtArea.getText());
	//runButton.enable();
      }
      else if (command.equals(" Run ")) {	
	outerParent.sendComanndToServer();
	exTxt[exNum].setText
	  (outerParent.resultTxtArea.getText());
      }
      else if (command.equals(" Close ")) {
	this.dispose();
      }
    }
    return true;
  }

  public void getExampleFromServer(String ex) {
    Socket thisSocket = null;
    DataOutputStream os = null;
    DataInputStream is = null;
    String st, tmp=" ";

    try {
      thisSocket = new Socket("kopernik.npac.syr.edu", 8667);
      os = new DataOutputStream(thisSocket.getOutputStream());
      is = new DataInputStream(thisSocket.getInputStream());
    }
    catch (UnknownHostException e) {
      System.err.println
	("Don't know about host: taranis");
      outerParent.resultTxtArea.setText
	("Don't know about host: taranis");
    }
    catch (IOException e) {
      System.err.println
	("Couldn't get I/O for the connection to: taranis");
      outerParent.resultTxtArea.setText
	("Couldn't get I/O for the connection to: taranis");
    }
    
    if (thisSocket != null && os != null && is != null) {
      try {
	os.writeBytes("example");
	os.writeByte('\n');
	os.writeBytes(ex + "nodeset");
	os.writeByte('\n');
	os.writeBytes(ex + "linkset");
	os.writeByte('\n');
	os.writeBytes(ex + "dataset");
	os.writeByte('\n');
	os.writeBytes(ex + "dist");
	os.writeByte('\n');
	os.writeBytes(ex + "exec.scrpt");
	os.writeByte('\n');
	os.writeBytes("done");
	os.writeByte('\n');

	st = is.readLine();
	while(!st.equals("done")) {
	    tmp += st;
	    st = is.readLine();
	}
	  
	os.close();
	is.close();
	thisSocket.close();

	//System.out.println(st);
	outerParent.setExampleInput(ex, tmp);

      }
      catch (IOException e) {
	System.err.println
	  ("I/O failed on the connection to: taranis");
      outerParent.resultTxtArea.setText
	  ("I/O failed on the connection to: taranis");
      }
    }

  }

};


///////////////////////////////////

class PictureFrame extends Frame {
  PetaSIM outerParent;
  Panel picturePanel, cntPanel;
  Button close;
  Image pic;
  URL url;

  PictureFrame(Image p) {
    this.pic = p;
    picturePanel = new Panel();
    cntPanel = new Panel();
    
    close = new Button(" Close ");
    cntPanel.add(close);
    pictureArea pa = new pictureArea(pic);

    setLayout(new BorderLayout());
    //add("Center", picturePanel);
    add("Center", pa);
    add("South", cntPanel);
  }

  public boolean action(Event evt, Object obj) {
    String command = (String)obj;

    if (command.equals(" Close ")) {
      this.dispose();
    }
    return true;
  }

};

//////////////////////////////////

class  pictureArea extends Canvas {
  Image pic;
    
  pictureArea(Image p) {
    this.pic = p;
  }
  
  public void paint(Graphics g) {
    Dimension d = size();
    //g.drawRect(0, 0, d.width-1, d.height-1);
    g.drawImage(pic, 0, 0, this);
  }
  
};