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

//import Html;
//import EndText;

/**
 *  This type represents an image indicated in a text
 *  document. The image, as in HTML or another markup system
 *  is indicated by a certain structure of text within the
 *  document. These codes are determined by the INDICATOR
 *  and TERMINATOR static variables. A short example document might
 *  be...
 *     Another photo of somebody [image http://www.host.org/images/somebody.jpg]
 *
 *  
 *
 *  
 *  @see FaqItem, Question, Answer
 *  @author http://bumble.sf.net
 */
 
  
public class Image extends Object
{
  //--------------------------------------------
  private static String NEWLINE = System.getProperty("line.separator");
  //--------------------------------------------
  private boolean isGood;
  //--------------------------------------------
  private String errors;
  //--------------------------------------------
  private String imageUrl;
  //--------------------------------------------
  public static String INDICATOR = "[image";
  //--------------------------------------------
  public static String TERMINATOR = "]";

  public Image()
  {
    this.errors = "";   
    this.imageUrl = "";
  } 

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

  //--------------------------------------------
  public String getAbsoluteName()
  {
    if (!this.isGood)
     { return ""; }

    return this.imageUrl;
  }

  //--------------------------------------------
  public String getCanonicalName()
  {
    if (!this.isGood)
     { return ""; }

    return this.imageUrl;
  }

  //--------------------------------------------
  public String getImageName()
  {
    return this.imageUrl;
  }

  //--------------------------------------------
  public void setImageName(String sImageName)
  {
    this.imageUrl = sImageName;
  }

  //--------------------------------------------
  /** determines if the end of some text begins with
   *  the start token of an image indicator. This function 
   *  is used by a parsing routine contained in an object
   *  such as a "document" object.  */
  public static boolean recognize(String sText)
  {
    if (!sText.endsWith(Image.INDICATOR))
      { return false; }

    //-- allow a single quote character to escape a
    //-- the start token. This allows the token to be
    //-- included in explanatory text without it
    //-- being rendered.
    //--
    if (sText.endsWith("'" + Image.INDICATOR))
      { return false; }

    return true;
  }

  //--------------------------------------------
  public void loadData(String sText)
  {
    this.isGood = this.isImage(sText);
    if (!this.isGood)
    {
      return;
    }

    this.imageUrl = sText.trim().substring(
      this.INDICATOR.length(),
      sText.trim().length() - this.TERMINATOR.length()).trim();

    if (this.imageUrl.equals(""))
    {
      this.imageUrl = 
	"http://sourceforge.net/sflogo.php?group_id=group_id=15255";
      //this.imageUrl = ".";
    }


  } //-- m: loadData()

  //--------------------------------------------
  /** checks if this looks like a folder indicator */
  public static boolean isImage(String sText)
  {
    if (sText.trim().length() == 0)
     { return false; }

    if (!sText.trim().startsWith(Image.INDICATOR))
      { return false; }

    if (!sText.trim().endsWith(Image.TERMINATOR))
      { return false; }

    return true;
  }

  
  //--------------------------------------------
  /** creates a string suitable for a plain text doc */
  public String toString()
  {
    StringBuffer sbReturn = new StringBuffer("");

    sbReturn.append(this.INDICATOR);
    sbReturn.append(" ");
    sbReturn.append(this.imageUrl.toString());
    sbReturn.append(this.TERMINATOR);

    return sbReturn.toString();
  }

  //--------------------------------------------
  public String printHtml()
  {
    if (!this.isGood)
    {
      return "";
    }

    StringBuffer sbReturn = new StringBuffer("");
    String sDisplayName = new String();

    sbReturn.append("<img src='" + this.imageUrl + "'>");
    return sbReturn.toString();

  } //-- m: printHtml()

  //--------------------------------------------
  public String printDocBook()
  {
    if (!this.isGood)
    {
      return "";
    }

    StringBuffer sbReturn = new StringBuffer("");
    String sDisplayName = new String();
    sbReturn.append("<mediaobject>");
    sbReturn.append("<imageobject>");

    sbReturn.append("<imagedata fileref=\"");
    sbReturn.append(this.imageUrl);
    sbReturn.append("\"");
    sbReturn.append(" format=\"\">");
    sbReturn.append("</imageobject>");
    sbReturn.append("</mediaobject>");
    return sbReturn.toString();

  } //-- m: printDocBook()

  //--------------------------------------------
  public String printReport()
  {
    StringBuffer sbReturn = new StringBuffer("");
    sbReturn.append("");
    sbReturn.append(NEWLINE);
    sbReturn.append("Image Url   >");
    sbReturn.append(this.imageUrl);
    sbReturn.append(NEWLINE);
    sbReturn.append("Absolute name    >");
    sbReturn.append(this.getAbsoluteName());
    sbReturn.append(NEWLINE);
    sbReturn.append("Canonical name   >");
    sbReturn.append(this.getCanonicalName());
    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 Image image-text");
    sbUsageMessage.append(NEWLINE);
    sbUsageMessage.append(NEWLINE);

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

    StringBuffer sbTest = new StringBuffer("");

    Image imageTest = new Image(args[0]);
    System.out.println(imageTest.printHtml());

    System.out.println(NEWLINE);
    System.out.println(imageTest.toString());
    System.out.println(NEWLINE);
    System.out.println(imageTest.printReport());

  } //-- main()
  
} //-- Image class