import java.awt.*;
import java.applet.*;
import java.util.*;
import java.io.*;
import java.awt.event.*;



/** 
 * An applet to provide an editor of text.
 * @author matth3wbishop<at>yahoo!<dot>com
 */

public class SimpleEditPanel extends Panel implements ActionListener
{

  //--------------------------------------------
  private StringBuffer sbFileContents;
  //--------------------------------------------
  private Button btnSave;
  //--------------------------------------------
  /** a button for loading a file */
  private Button btnLoad;
  //--------------------------------------------
  /** the main area for editing text */
  private TextArea taEditArea;
  //--------------------------------------------
  private TextField tfLoadFile;
  //--------------------------------------------
  private TextField tfPassword;
  //--------------------------------------------
  private TextField tfRemoteSavePath;
  //--------------------------------------------
  private WindMillLabel lblMessages;
  //--------------------------------------------
  private Font displayFont;

  //-------------------------------------------------
  /** a panel to hold some components */
  private Panel pnlTop;
  //-------------------------------------------------
  private Date startTime;
  //-------------------------------------------------
  private Date initializeTime;
  //-------------------------------------------------
  private Date stopTime;
  //-------------------------------------------------
  private Date destroyDate;
  //-------------------------------------------------
  Color backgroundColour;
  //-------------------------------------------------
  private String sServer = "bumble.sf.net";
  //-------------------------------------------------
  private String sUserName = "matth3wbishop";
  //-------------------------------------------------
  private String sServerWebRoot = "/home/groups/b/bu/bumble/htdocs";
  //-------------------------------------------------
  private String sCurrentFileLocalName;
  //-------------------------------------------------
  private String sCurrentFileUrl;
  //-------------------------------------------------
  private WindMillLabel statusLabel;



  //-------------------------------------------------
  /**  */
   public SimpleEditPanel() 
   {
     //super();

     //this.statusLabel = new WindMillLabel("edit");

     this.sCurrentFileLocalName = "";
     this.sCurrentFileUrl = "";

     sbFileContents = new StringBuffer();

     this.displayFont = new Font("Monospaced", Font.PLAIN, 16);
     this.pnlTop = new Panel();

     Color WHITE = new Color(255, 255, 255);
     Color DEEP_GREEN = new Color(0, 33, 0);
     Color BLACK = new Color(0, 0, 0);


     this.setBackground(DEEP_GREEN);


     this.initializeTime = new Date();
     System.out.println("init method of applet");

     this.btnSave = new Button("save");
     this.btnSave.addActionListener(this);

     this.btnLoad = new Button("load");
     this.btnLoad.addActionListener(this);

     this.tfLoadFile = new TextField("http://bumble.sf.net/", 30);
     this.tfLoadFile.addActionListener(this);
     this.tfLoadFile.setFont(displayFont);
     this.tfLoadFile.setBackground(WHITE);

     this.tfPassword = new TextField("..", 10);
     this.tfPassword.setFont(displayFont);
     this.tfPassword.setBackground(WHITE);

     this.tfRemoteSavePath = new TextField(this.sServerWebRoot, 15);
     this.tfRemoteSavePath.setFont(displayFont);
     this.tfRemoteSavePath.setBackground(WHITE);

     this.lblMessages = new WindMillLabel();
     this.lblMessages.setForeground(WHITE);
     this.lblMessages.setFont(displayFont);


     this.taEditArea = new TextArea("hello text area");
     this.taEditArea.setEditable(true);
     this.taEditArea.setFont(this.displayFont);
     this.taEditArea.setForeground(WHITE);
     this.taEditArea.setBackground(BLACK);

     //this.setLayout(new java.awt.GridLayout(1,0));
     this.setLayout(new java.awt.BorderLayout());

     this.pnlTop.add(this.tfLoadFile);
     this.pnlTop.add(this.btnLoad);
     this.pnlTop.add(this.btnSave);
     this.pnlTop.add(this.tfPassword);
     this.pnlTop.add(this.tfRemoteSavePath);


     this.add("North", this.pnlTop);
     this.add("South", this.lblMessages);
     this.add("Center", this.taEditArea);


     //add(taEditArea);
     //validate();


   } //-- const:()


  //--------------------------------------------
  public void actionPerformed(ActionEvent e) 
  {
    Object source = e.getSource();

    if (source == this.btnSave)
    {  

      this.lblMessages.setText("file saved " + (new Date()));

    } //-- if save button

    if (source == this.tfLoadFile)
    {  
      this.lblMessages.setText("loading ");    
    }

    if (source == this.btnLoad)
    {
      StringBuffer sbMessages = new StringBuffer("");
      //taEditArea.appendText(sbMessages.toString());

      this.lblMessages.setLabel(
        "Trying to load file " + tfLoadFile.getText());
      this.lblMessages.spin();

      WebDownload wdLoad = new WebDownload(tfLoadFile.getText());
      wdLoad.download();
      this.taEditArea.append(wdLoad.printStatistics());

      BufferedReader brReader;
      FileReader frTextFile;

      try
      {
        frTextFile = new FileReader(wdLoad.getFileName());
      }
      catch (FileNotFoundException ex)
      {
        this.taEditArea.append("a problem loading the local file");
        return;
      }

      this.sCurrentFileLocalName =
        new File(wdLoad.getFileName()).getAbsolutePath();
      this.sCurrentFileUrl = wdLoad.getUrl();

      brReader = new BufferedReader(frTextFile);

      int ii;

      try
      {
        ii = brReader.read();
        while (ii != -1)
        {
         this.sbFileContents.append((char)ii);
         ii = brReader.read();
        }

      
        this.taEditArea.append(sbFileContents.toString());
        brReader.close();
        frTextFile.close();
        this.lblMessages.setLabel("File loaded");
        this.lblMessages.stopSpinning();
      }
      catch (IOException ex)
      {
        
      }
    } //-- if

  } //-- method: actionPerformed

  //--------------------------------------------


  //--------------------------------------------
  /** A main method to test */
  public static void main(String[] args) throws Exception
  {
    StringBuffer sbUsageMessage = new StringBuffer("");
    sbUsageMessage.append("usage: java SimpleEditPanel .");
    //sbUsageMessage.append(NEWLINE); 

    if (args.length == 0)
    {	    
      System.out.println(sbUsageMessage);
      System.exit(-1);
    }


    Frame frame = new Frame("Testing SimpleEditPanel");
    SimpleEditPanel epTest = new SimpleEditPanel();
    frame.add("Center", epTest);
    //-- exit when the window is closed
    //--
    frame.addWindowListener(new WindowAdapter()
    {
      public void windowClosing(WindowEvent ee)
      {
        System.exit(0);
      }
    });


    frame.pack();
    frame.show();
      
  } //-- main()    
    
} //-- class: EditPanel