/*FreeMind - A Program for creating and viewing Mindmaps
 *Copyright (C) 2000-2006 Joerg Mueller, Daniel Polansky, Christian Foltin, Dimitri Polivaev and others.
 *
 *See COPYING for Details
 *
 *This program is free software; you can redistribute it and/or
 *modify it under the terms of the GNU General Public License
 *as published by the Free Software Foundation; either version 2
 *of the License, or (at your option) any later version.
 *
 *This program is distributed in the hope that it will be useful,
 *but WITHOUT ANY WARRANTY; without even the implied warranty of
 *MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *GNU General Public License for more details.
 *
 *You should have received a copy of the GNU General Public License
 *along with this program; if not, write to the Free Software
 *Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */
package freemind.modes.mindmapmode.actions;

import java.awt.event.ActionEvent;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;

import javax.swing.AbstractAction;
import javax.swing.JFileChooser;

import freemind.main.Tools;
import freemind.modes.FreeMindFileDialog;
import freemind.modes.MindMapNode;
import freemind.modes.mindmapmode.MindMapController;

public class ImportExplorerFavoritesAction extends AbstractAction {
	private final MindMapController controller;

	public ImportExplorerFavoritesAction(MindMapController controller) {
		super(controller.getText("import_explorer_favorites"));
		this.controller = controller;
	}

	public void actionPerformed(ActionEvent e) {
		FreeMindFileDialog chooser = controller.getFileChooser(null);
		chooser.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);
		chooser.setDialogTitle(controller.getText("select_favorites_folder"));
		int returnVal = chooser.showOpenDialog(controller.getFrame()
				.getContentPane());
		if (returnVal == JFileChooser.APPROVE_OPTION) {
			File folder = chooser.getSelectedFile();
			controller.getFrame().out("Importing Favorites ...");
			// getFrame().repaint(); // Refresh the frame, namely hide dialog
			// and show status
			// getView().updateUI();
			// Problem: the frame should be refreshed here, but I don't know how
			// to do it
			importExplorerFavorites(folder, controller.getSelected(),/*
																	 * redisplay=
																	 */
					true);
			controller.getFrame().out("Favorites imported.");
		}
	}

	public boolean importExplorerFavorites(File folder, MindMapNode target,
			boolean redisplay) {
		// Returns true iff any favorites found
		boolean favoritesFound = false;
		if (folder.isDirectory()) {
			File[] list = folder.listFiles();
			// Go recursively to subfolders
			for (int i = 0; i < list.length; i++) {
				if (list[i].isDirectory()) {
					// Insert a new node
					String nodeContent = list[i].getName();
					MindMapNode node = addNode(target, nodeContent);
					//
					boolean favoritesFoundInSubfolder = importExplorerFavorites(
							list[i], node, false);
					if (favoritesFoundInSubfolder) {
						favoritesFound = true;
					} else {
						controller.deleteNode(node);
					}
				}
			}

			// For each .url file: add it
			for (int i = 0; i < list.length; i++) {
				if (!list[i].isDirectory()
						&& Tools.getExtension(list[i]).equals("url")) {
					favoritesFound = true;
					try {
						MindMapNode node = addNode(target,
								Tools.removeExtension(list[i].getName()));
						// For each line: Is it URL? => Set it as link
						BufferedReader in = new BufferedReader(new FileReader(
								list[i]));
						while (in.ready()) {
							String line = in.readLine();
							if (line.startsWith("URL=")) {
								node.setLink(line.substring(4));
								break;
							}
						}

					} catch (Exception e) {
						freemind.main.Resources.getInstance().logException(e);
					}
				}
			}
		}
		if (redisplay) {
			controller.nodeChanged(target);
		}
		return favoritesFound;
	}

	/**
     */
	private MindMapNode addNode(MindMapNode target, String nodeContent) {
		MindMapNode node = controller.addNewNode(target,
				target.getChildCount(), target.isNewChildLeft());
		controller.setNodeText(node, nodeContent);
		return node;
	}

}