/**
 *
 */
package cytoscape.dialogs.plugins;

import cytoscape.*;

import cytoscape.bookmarks.Bookmarks;
//import cytoscape.bookmarks.Category;
import cytoscape.bookmarks.DataSource;

import cytoscape.dialogs.preferences.BookmarkDialog;

import cytoscape.logger.CyLogger;
import cytoscape.plugin.DownloadableInfo;
//import cytoscape.plugin.DownloadableType;
//import cytoscape.plugin.ManagerException;
import cytoscape.plugin.ManagerUtil;
//import cytoscape.plugin.PluginInfo;
import cytoscape.plugin.PluginManager;
import cytoscape.plugin.PluginInquireAction;
import cytoscape.plugin.PluginStatus;
import cytoscape.plugin.PluginManagerInquireTask;

import cytoscape.task.ui.JTaskConfig;
import cytoscape.task.util.TaskManager;
import cytoscape.util.BookmarksUtil;

import org.jdesktop.layout.GroupLayout;
import org.jdesktop.layout.LayoutStyle;

import java.awt.Component;
//import java.awt.Dimension;

import java.util.List;
import java.util.Map;

import javax.swing.DefaultComboBoxModel;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JDialog;
//import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JList;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.ListCellRenderer;
import javax.swing.WindowConstants;

/**
 * @author skillcoy
 */
public class PluginUrlDialog extends JDialog {
	private String bookmarkCategory = "plugins";

	private Bookmarks theBookmarks;

	private PluginManageDialog parentDialog;

	private static CyLogger logger = CyLogger.getLogger(PluginUrlDialog.class);

	/**
	 * Creates a new PluginUrlDialog object.
	 */
	public PluginUrlDialog(JDialog owner) {
		super(owner, "Plugin Download Sites");
		parentDialog = (PluginManageDialog) owner;
		setLocationRelativeTo(owner);
		bookmarksSetUp();
		initComponents();
	}

	/**
	 * DOCUMENT ME!
	 * 
	 * @param Items
	 *            DOCUMENT ME!
	 */
	public void addItems(String[] Items) {
		urlComboBox.setModel(new javax.swing.DefaultComboBoxModel(Items));
	}

	/*
	 * Sets up the bookmarks for plugin dowload sites
	 */
	private void bookmarksSetUp() {
		try {
			theBookmarks = Cytoscape.getBookmarks();
		} catch (Exception E) {
			JOptionPane.showMessageDialog(Cytoscape.getDesktop(),
					"Failed to retrieve bookmarks for plugin download sites.",
					"Error", JOptionPane.ERROR_MESSAGE);
			logger.warn("Failed to retrieve bookmarks for plugin download sites.", E);

			return;
		}

		// if theBookmarks does not exist, create an empty one
		if (theBookmarks == null) {
			theBookmarks = new Bookmarks();
			Cytoscape.setBookmarks(theBookmarks);
		}

	}

	// ok - chooses a site. Needs to reopen the InstallDialog using new url for
	// the manager inquiry
	private void okHandler(java.awt.event.ActionEvent evt) {
		DataSource SelectedSite = (DataSource) urlComboBox.getSelectedItem();
		parentDialog.switchDownloadSites();
		dispose();

		cytoscape.task.Task task = new PluginManagerInquireTask
			(SelectedSite.getHref(), new UrlAction(parentDialog, SelectedSite.getHref()));
		// Configure JTask Dialog Pop-Up Box
		JTaskConfig jTaskConfig = new JTaskConfig();
		jTaskConfig.setOwner(Cytoscape.getDesktop());
		jTaskConfig.displayCloseButton(false);
		jTaskConfig.displayStatus(true);
		jTaskConfig.setAutoDispose(true);
		jTaskConfig.displayCancelButton(true);
		// Execute Task in New Thread; pop open JTask Dialog Box.
		TaskManager.executeTask(task, jTaskConfig);
		
		
		parentDialog.setSiteName(SelectedSite.getName());
	}

	// add - opens the bookmarks dialog to add a new download site
	private void addSiteHandler(java.awt.event.ActionEvent evt) {
		try {
			final int preEdit = BookmarksUtil.getDataSourceList(
					bookmarkCategory, theBookmarks.getCategory()).size();
			
			BookmarkDialog bDialog = new BookmarkDialog(Cytoscape.getDesktop(), "plugins");
			
			/* for some reason the windowStateListener wasn't getting the event
			so I have to use this one this allows me to update the combo 
			box when the user is done adding */
			bDialog.addWindowListener(new java.awt.event.WindowListener() {
				public void windowClosed(java.awt.event.WindowEvent evt) {
					int postEdit = BookmarksUtil.getDataSourceList(
							bookmarkCategory, theBookmarks.getCategory()).size();

					if (preEdit >= postEdit) 
						loadBookmarkCMBox(false);
					else loadBookmarkCMBox(true);
				}

				public void windowOpened(java.awt.event.WindowEvent evt) {
				}

				public void windowDeiconified(java.awt.event.WindowEvent evt) {
				}

				public void windowIconified(java.awt.event.WindowEvent evt) {
				}

				public void windowClosing(java.awt.event.WindowEvent evt) {
				}

				public void windowDeactivated(java.awt.event.WindowEvent evt) {
				}

				public void windowActivated(java.awt.event.WindowEvent evt) {
				}
			});
			bDialog.pack();
			bDialog.setVisible(true);
		} catch (Exception E) {
			JOptionPane
					.showMessageDialog(
							Cytoscape.getDesktop(),
							"Failed to get bookmarks.  Go to Edit->Preferences->Bookmarks to edit your plugin download sites.",
							"Error", JOptionPane.ERROR_MESSAGE);
			logger.warn("Failed to get bookmarks from plugin download sites: "+E.getMessage(), E);
		}
	}

	// loads the combo box for bookmars
	private void loadBookmarkCMBox(boolean selectLast) {
		DefaultComboBoxModel theModel = new DefaultComboBoxModel();

		// Extract the URL entries
		List<DataSource> theDataSourceList = BookmarksUtil.getDataSourceList(
				bookmarkCategory, theBookmarks.getCategory());

		if (theDataSourceList != null) {
			for (DataSource Current : theDataSourceList) {
				theModel.addElement(Current);
				if (selectLast)
					theModel.setSelectedItem(Current);
			}
		}

		urlComboBox.setModel(theModel);
	}

	private void initComponents() {
		labelPanel = new JPanel();
		label = new JLabel();
		urlComboBox = new JComboBox();
		urlComboBox.setRenderer(new BookmarkCellRenderer());
		urlComboBox.setEditable(false);

		jPanel1 = new JPanel();
		okButton = new JButton();
		editSiteButton = new JButton();
		cancelButton = new JButton();
		setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);
		label.setText("Choose a plugin download site");

		GroupLayout labelPanelLayout = new GroupLayout(labelPanel);
		labelPanel.setLayout(labelPanelLayout);
		labelPanelLayout.setHorizontalGroup(labelPanelLayout
				.createParallelGroup(GroupLayout.LEADING).add(
						labelPanelLayout.createSequentialGroup()
								.addContainerGap().add(label,
										GroupLayout.DEFAULT_SIZE, 239,
										Short.MAX_VALUE).addContainerGap()));
		labelPanelLayout.setVerticalGroup(labelPanelLayout.createParallelGroup(
				GroupLayout.LEADING).add(
				labelPanelLayout.createSequentialGroup().addContainerGap().add(
						label, GroupLayout.DEFAULT_SIZE, 16, Short.MAX_VALUE)
						.addContainerGap()));
		okButton.setText("Ok");
		okButton.addActionListener(new java.awt.event.ActionListener() {
			public void actionPerformed(java.awt.event.ActionEvent evt) {
				okHandler(evt);
			}
		});
		editSiteButton.setText("Edit Sites");
		editSiteButton.addActionListener(new java.awt.event.ActionListener() {
			public void actionPerformed(java.awt.event.ActionEvent evt) {
				addSiteHandler(evt);
			}
		});
		cancelButton.setText("Cancel");
		cancelButton.addActionListener(new java.awt.event.ActionListener() {
			public void actionPerformed(java.awt.event.ActionEvent evt) {
				PluginUrlDialog.this.dispose();
			}
		});

		GroupLayout jPanel1Layout = new GroupLayout(jPanel1);
		jPanel1.setLayout(jPanel1Layout);
		jPanel1Layout.setHorizontalGroup(jPanel1Layout.createParallelGroup(
				GroupLayout.LEADING).add(
				jPanel1Layout.createSequentialGroup().add(8, 8, 8)
						.add(okButton).addPreferredGap(LayoutStyle.RELATED)
						.add(editSiteButton)
						.addPreferredGap(LayoutStyle.RELATED).add(cancelButton)
						.addContainerGap(46, Short.MAX_VALUE)));
		jPanel1Layout.setVerticalGroup(jPanel1Layout.createParallelGroup(
				GroupLayout.LEADING).add(
				jPanel1Layout.createSequentialGroup().addContainerGap().add(
						jPanel1Layout.createParallelGroup(GroupLayout.BASELINE)
								.add(okButton).add(editSiteButton).add(
										cancelButton)).addContainerGap(
						GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)));

		GroupLayout layout = new GroupLayout(getContentPane());
		getContentPane().setLayout(layout);
		layout
				.setHorizontalGroup(layout
						.createParallelGroup(GroupLayout.LEADING)
						.add(
								layout
										.createSequentialGroup()
										.add(
												layout
														.createParallelGroup(
																GroupLayout.LEADING)
														.add(
																labelPanel,
																GroupLayout.PREFERRED_SIZE,
																GroupLayout.DEFAULT_SIZE,
																GroupLayout.PREFERRED_SIZE)
														.add(
																layout
																		.createSequentialGroup()
																		.add(
																				21,
																				21,
																				21)
																		.add(
																				layout
																						.createParallelGroup(
																								GroupLayout.LEADING)
																						.add(
																								urlComboBox,
																								0,
																								296,
																								Short.MAX_VALUE)
																						.add(
																								jPanel1,
																								GroupLayout.DEFAULT_SIZE,
																								GroupLayout.DEFAULT_SIZE,
																								Short.MAX_VALUE))))
										.addContainerGap()));
		layout.setVerticalGroup(layout.createParallelGroup(GroupLayout.LEADING)
				.add(
						layout.createSequentialGroup().add(labelPanel,
								GroupLayout.PREFERRED_SIZE,
								GroupLayout.DEFAULT_SIZE,
								GroupLayout.PREFERRED_SIZE).addPreferredGap(
								LayoutStyle.RELATED).add(urlComboBox,
								GroupLayout.PREFERRED_SIZE,
								GroupLayout.DEFAULT_SIZE,
								GroupLayout.PREFERRED_SIZE).addPreferredGap(
								LayoutStyle.RELATED).add(jPanel1,
								GroupLayout.PREFERRED_SIZE,
								GroupLayout.DEFAULT_SIZE,
								GroupLayout.PREFERRED_SIZE)));
		loadBookmarkCMBox(false);
		pack();
	}

	// required to make the text of the data source show up correctly in the
	// combo box
	private class BookmarkCellRenderer extends JLabel implements
			ListCellRenderer {
		
		public BookmarkCellRenderer() {
			setOpaque(true);
		}
		
		public Component getListCellRendererComponent(JList list, Object value,
				int index, boolean isSelected, boolean cellHasFocus) {
			DataSource dataSource = (DataSource) value;
			setText(dataSource.getName());

			if (isSelected) {
				if (0 < index) {
					list.setToolTipText(dataSource.getHref());
				}
			}

			return this;
		}
	}

	private class UrlAction extends PluginInquireAction {

		private PluginManageDialog dialog;
		private String url;

		public UrlAction(PluginManageDialog Dialog, String Url) {
			dialog = Dialog;
			url = Url;

		}

		public boolean displayProgressBar() {
			return true;
		}

		public String getProgressBarMessage() {
			return "Attempting to connect...";
		}

		public void inquireAction(List<DownloadableInfo> Results) {

			if (isExceptionThrown()) {
				if (getIOException() != null) {
					// failed to read the given url
					logger.warn(PluginManageDialog.CommonError.NOXML + url, getIOException());
					dialog.setError(PluginManageDialog.CommonError.NOXML + url);
				} else if (getJDOMException() != null) {
					// failed to parse the xml file at the url
					logger.warn(PluginManageDialog.CommonError.BADXML + url, getJDOMException());
					dialog.setError(PluginManageDialog.CommonError.BADXML + url);
				}
			} else {

				PluginManager Mgr = PluginManager.getPluginManager();
				List<DownloadableInfo> UniqueAvailable = ManagerUtil.getUnique(Mgr
						.getDownloadables(PluginStatus.CURRENT), Results);

				Map<String, List<DownloadableInfo>> NewPlugins = ManagerUtil
						.sortByCategory(UniqueAvailable);

				if (NewPlugins.size() <= 0) {
					dialog.setError("No plugins compatible with "
							+ new CytoscapeVersion().getFullVersion()
							+ " available from this site.");
				} else {
					dialog.setMessage("");
				}

				for (String Category : NewPlugins.keySet()) {
					dialog.addCategory(Category, NewPlugins.get(Category),
							PluginManageDialog.PluginInstallStatus.AVAILABLE);
				}
			}

		}

	}

	private JButton editSiteButton;

	private JButton cancelButton;

	private JPanel jPanel1;

	private JLabel label;

	private JPanel labelPanel;

	private JButton okButton;

	private JComboBox urlComboBox;
}