import java.awt.*;
import java.io.*;


public class applic extends Frame {

  public applic() {

    setTitle("Generic Project");
    TextIn = new TextArea(10, 50);
    TextOut = new TextArea(10, 50);
    TextOut.setEditable(false);
    add("East", TextOut);
    add("West", TextIn);
    Panel p = new Panel();
    p.setLayout(new FlowLayout());
    p.add(Open = new Button("Open input file"));
    p.add(Save = new Button("Save input file"));
    p.add(Run = new Button("Run Demeter/Java"));
    p.add(Clear = new Button("Reset windows"));
    p.add(Close = new Button("Exit application"));
    add("South", p);

  }

  public boolean handleEvent(Event evt) {
    if (evt.id == Event.WINDOW_DESTROY) System.exit(0);
//    if (evt.id == Event.WINDOW_MOVED) {
//	Dimension d = this.size();
//	System.out.println(d.width + " " + d.height); }
    else return super.handleEvent(evt); 
    return true;
  }

  public boolean action(Event evt, Object arg) {
    if (evt.target == Open) OpenFile();
    else if (evt.target == Save) SaveFile();
    else if (evt.target == Run) RunDemeter();
    else if (evt.target == Clear) {
	TextIn.setText("");
	TextOut.setText("");
	filename = null;
    }
    else if (evt.target == Close) System.exit(0);
    else return super.action(evt, arg);
    return true;
  }

  public void OpenFile() {
    FileDialog d = new FileDialog(this, "File Dialog", FileDialog.LOAD);
    d.setDirectory(path);
    d.show();
    filename = d.getFile();
    if (filename != null) {
	dirname = d.getDirectory();
	try {
	    DataInputStream in = new DataInputStream(new 
	    FileInputStream(dirname + filename));
    	    String line = in.readLine();
	    TextIn.setText("");
	    while(line != null) {
	         TextIn.appendText(line + "\n");
		 line = in.readLine();
	         }
	    in.close();	    	
	    System.out.println("The file has been read in");
	    }
	catch(Exception e) {
	}
    }
  }

  public void SaveFile() {
    FileDialog d = new FileDialog(this, "File Dialog", FileDialog.SAVE);
    d.setDirectory(path);
    d.show();
    dirname = d.getDirectory();
    filename = d.getFile();
    if (filename != null) {
	try {
	    PrintStream out = new PrintStream(new 
	    FileOutputStream(dirname + filename));
	    out.println(TextIn.getText());
	    out.close();
	    System.out.println("The file has been saved");
	}
	catch(Exception e) {
	}
    }
  	        
  }

  public void RunDemeter() {

	if (filename == null) {
	    if (TextIn.getText().length() == 0) OpenFile();
	    else SaveFile();
	}
	if (filename == null) return;
	
	String command = path + "myscript " + dirname + filename;

	try {
		Process p = Runtime.getRuntime().exec(command);
		p.waitFor();
		PasteOutput();
	}
	catch(Exception e) {
		System.out.println("Error running Demeter/Java");
	}

  }
	
  public void PasteOutput() {
	try {
	    DataInputStream in = new DataInputStream(new 
	    FileInputStream("created.out.beh"));
    	    String line = in.readLine();
	    TextOut.setText("");
	    while(line != null) {
	         TextOut.appendText(line + "\n");
		 line = in.readLine();
	         }
	    in.close();	    	
	    }
	catch(Exception e) {
	}
}


  public static void main(String[] args) {
    Frame f = new applic();
    f.resize(900,570);
    f.show();
   
}

private Button Open, Save, Run, Clear, Close;
private String filename = null, dirname;
private String path = "/proj/demsys/com1205/w97/alex/project/phase3/";
private TextArea TextIn, TextOut;
private Runtime dem, dem1;
private Process proc;

}