package net.sf.statcvs.pages;

 import java.util.Iterator;

 import net.sf.statcvs.Messages;

 import net.sf.statcvs.model.Directory;

 /**

  * Formats a directory and its subdirectories into a tree.

  *

  * @author Richard Cyganiak (richard@cyganiak.de)

  * @version $Id: DirectoryTreeFormatter.java,v 1.6 2008/04/02 11:22:14 benoitx Exp $

  */

 public class DirectoryTreeFormatter {

     private static final int SPACE_COUNT = 4;

     private final Directory directory;

     private final boolean withRootLinks;

     public DirectoryTreeFormatter(final Directory directory, final boolean withRootLinks) {

         this.directory = directory;

         this.withRootLinks = withRootLinks;

     }

     private String getRootLinks(Directory dir) {

         String result = getFormattedName(dir, false, true);

         while (!dir.isRoot()) {

             final Directory parent = dir.getParent();

             result = getFormattedName(parent, true, false) + "/" + result;

             dir = parent;

         }

         return result;

     }

     public String getFormatted() {

         final StringBuffer result = new StringBuffer("<p class=\"dirtree\">\n");

         final Iterator it = this.directory.getSubdirectoriesRecursive().iterator();

         if (this.withRootLinks) {

             final Directory current = (Directory) it.next();

             result.append(getRootLinks(current)).append("<br/>\n");

         }

         while (it.hasNext()) {

             final Directory subdirectory = (Directory) it.next();

             format(subdirectory, 0, result);

         }

         result.append("</p>\n");

         return result.toString();

     }

     private void format(final Directory dir, final int currentDepth, final StringBuffer s) {

         s.append(getSpaces(dir.getDepth() - currentDepth));

         if (dir.isEmpty()) {

             s.append(HTML.getIcon(ReportSuiteMaker.DELETED_DIRECTORY_ICON, Messages.getString("DELETED_DIRECTORY_ICON")));

         } else {

             s.append(HTML.getIcon(ReportSuiteMaker.DIRECTORY_ICON, Messages.getString("DIRECTORY_ICON")));

         }

         s.append(" \n").append(getFormattedName(dir, true, false));

         s.append(" \n(").append(dir.getCurrentFileCount()).append(" ");

         s.append(Messages.getString("DIRECTORY_TREE_FILES")).append(", ");

         s.append(dir.getCurrentLOC()).append(" ");

         s.append(Messages.getString("DIRECTORY_TREE_LINES")).append(")<br />\n");

     }

     private String getFormattedName(final Directory directory, final boolean link, final boolean bold) {

         String name = directory.isRoot() ? Messages.getString("NAVIGATION_ROOT") : directory.getName();

         if (link) {

             final String url = DirectoryPageMaker.getURL(directory);

             name = HTML.getLink(url, name);

         } else {

             name = HTML.escape(name);

         }

         if (bold) {

             return "<strong>" + name + "</strong>";

         }

         return name;

     }

     private String getSpaces(final int count) {

         final StringBuffer result = new StringBuffer();

         for (int i = 0; i < count * SPACE_COUNT; i++) {

             result.append(" ");

         }

         return result.toString();

     }

 }