import java.io.*;
import java.util.*;

//import BufferLoad;
//import Title;
//import Folder;


/**
 *  This class represents a document which is intended to
 *  display the contents of a directory, probably located
 *  on the web-server where the document came from.
 *  The document may have a title and some text as well.
 *
 *
 *  @see FaqItem, Question, Answer
 *  @author http://bumble.sf.net
 */
 
  
public class FolderDocument extends Object
{
  //--------------------------------------------
  private static String NEWLINE = System.getProperty("line.separator");
  //--------------------------------------------
  private boolean isGood;
  //--------------------------------------------
  private String errors;
  //--------------------------------------------
  private Folder folder;
  //--------------------------------------------
  private Date startTime;
  //--------------------------------------------
  private Date finishTime;
  //--------------------------------------------
  private StringBuffer text;
  //--------------------------------------------
  private Title title;
  //--------------------------------------------
  private String styleSheet;

  public FolderDocument()
  {
    this.errors = "";
    this.folder = new Folder();
    this.text = new StringBuffer("");
    this.title = new Title();
    this.errors = "";
    this.styleSheet = "/style.css";
  } 

  //--------------------------------------------
  public FolderDocument(String sText)
  {
    this();
    this.loadData(sText);
  } 

  //--------------------------------------------
  /** return the number of milliseconds taken to load. */
  public long getLoadDuration()
  {
    if (this.finishTime == null) { return 0; }
    if (this.startTime == null) { return 0; }
    return this.finishTime.getTime() - this.startTime.getTime();
  } 

  //--------------------------------------------
  public void loadData(String sText)
  {

    this.startTime = new Date();
    this.isGood = this.isFolderDocument(sText);
    if (!this.isGood)
    {
      this.finishTime = new Date();
      return;
    }

    String sFolderDocumentContents = sText.trim();
    StringReader srText = new StringReader(sFolderDocumentContents);

    int iCurrentCharacter = 0;
    StringBuffer sbText = new StringBuffer("");
    
    while (iCurrentCharacter != -1)
    {
      sbText.append((char)iCurrentCharacter);
      //-- System.out.println("sbText=" + sbText);

      //-- The title must be the first thing in the
      //-- document
      //--
      if (Title.isTitle(sbText.toString().trim()))
      {
        //-- System.out.println("<found title>");
        this.title = new Title(sbText.toString());
        sbText.setLength(0);
      } 

      if (sbText.toString().trim().endsWith(Folder.INDICATOR))
      {
        this.text.append(
          sbText.toString().substring(0,
          sbText.toString().length() - Folder.INDICATOR.length()));
        sbText.setLength(0);
        sbText.append(Folder.INDICATOR);
      }


      if (Folder.isFolder(sbText.toString()))
      {
        //-- System.out.println("<found folder>");
        this.folder = new Folder(sbText.toString());
        sbText.setLength(0);
      } 

      try
      {
        iCurrentCharacter = srText.read();
      }
      catch (IOException e)
      {
        this.errors =
          "An IO Exception occurred while reading " + e;
        this.finishTime = new Date();
        return;
      }
    } //-- while more characters

    srText.close();
    this.finishTime = new Date();

  } //-- m: loadData()

  //--------------------------------------------
  /** checks if this looks like an FolderDocument but
   *  no structure checks will be made now. */
  public static boolean isFolderDocument(String sText)
  {
    return true;
  }

  //--------------------------------------------
  /** is there any data */
  public boolean isEmpty()
  {
     return false;
  }
  
  //--------------------------------------------
  /** is there a folder listing */
  public boolean hasFolder()
  {
    //return this.folder.isGood;
    return true;
  }


  //--------------------------------------------
  public String toString()
  {
    StringBuffer sbReturn = new StringBuffer("");

    sbReturn.append(NEWLINE);
    sbReturn.append(this.title);
    sbReturn.append(NEWLINE);
    sbReturn.append(NEWLINE);
    sbReturn.append(this.text);
    sbReturn.append(this.folder.toString());

    return sbReturn.toString();
  }

  //--------------------------------------------
  public String printHtml()
  {

    StringBuffer sbReturn = new StringBuffer("");
    sbReturn.append("<html>");
    sbReturn.append(NEWLINE);
    sbReturn.append("<head>");
    sbReturn.append(NEWLINE);
    sbReturn.append("<link href='");
    sbReturn.append(this.styleSheet);
    sbReturn.append("' rel='stylesheet' type='text/css'>");
    sbReturn.append(NEWLINE);
    sbReturn.append("<title>");
    sbReturn.append(NEWLINE);
    sbReturn.append(this.title.toString());
    sbReturn.append(NEWLINE);
    sbReturn.append("</title>");
    sbReturn.append(NEWLINE);
    sbReturn.append("</head>");
    sbReturn.append(NEWLINE);
    sbReturn.append("<body>");
    sbReturn.append(NEWLINE);
    sbReturn.append(this.title.printHtml());
    sbReturn.append(NEWLINE);
    sbReturn.append(this.text);
    sbReturn.append("<br/>");
    sbReturn.append(NEWLINE);
    sbReturn.append(this.folder.printHtml());

    sbReturn.append(NEWLINE);
    sbReturn.append("</body>");
    sbReturn.append(NEWLINE);
    sbReturn.append("</html>");
    return sbReturn.toString();
  }

  //--------------------------------------------
  public String printReport()
  {
    StringBuffer sbReturn = new StringBuffer("");
    sbReturn.append("");
    sbReturn.append(NEWLINE);
    sbReturn.append("Document title  >");
    sbReturn.append(this.title.toString());
    sbReturn.append(NEWLINE);
    sbReturn.append("has a folder    >");
    sbReturn.append(this.hasFolder());
    sbReturn.append(NEWLINE);
    sbReturn.append("Load time        >");
    sbReturn.append(this.getLoadDuration());
    sbReturn.append(NEWLINE);
    sbReturn.append("last data good   >");
    sbReturn.append(this.isGood);
    sbReturn.append(NEWLINE);
    sbReturn.append("error messages   >");
    sbReturn.append(this.errors);
    sbReturn.append(NEWLINE);
    return sbReturn.toString();
  }

  //--------------------------------------------
  public String print()
  {
    StringBuffer sbReturn = new StringBuffer("");
    return this.toString();
  }


  //--------------------------------------------
  /** a main method for testing */
  public static void main(String[] args) throws Exception
  {

    StringBuffer sbUsageMessage = new StringBuffer("");
    sbUsageMessage.append("test usage: java FolderDocument text-file [show]");
    sbUsageMessage.append(NEWLINE);
    sbUsageMessage.append("");
    sbUsageMessage.append(NEWLINE);

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


    StringBuffer sbTest = new StringBuffer("");
    sbTest.append(NEWLINE);


    //-- show all data, not just the html.
    if (args.length == 2)
    {	    
      System.out.println("Using data");
      System.out.println(NEWLINE);
      System.out.println(BufferLoad.loadBuffer(args[0]));
    }

    FolderDocument document = new FolderDocument(BufferLoad.loadBuffer(args[0]));

    if (args.length == 2)
    {	    
      System.out.println(NEWLINE);
      System.out.println(document.toString());
      System.out.println(NEWLINE);
      System.out.println(document.printReport());
    }

    System.out.println(document.printHtml());

  } //-- main()
  
} //-- FAQ class