package org.docear.plugin.bibtex.actions;

import java.awt.event.ActionEvent;
import java.io.File;
import java.net.URI;

import javax.swing.JFileChooser;
import javax.swing.filechooser.FileFilter;

import org.docear.plugin.core.workspace.model.DocearWorkspaceProject;
import org.freeplane.core.ui.EnabledAction;
import org.freeplane.core.ui.components.UITools;
import org.freeplane.core.util.TextUtils;
import org.freeplane.plugin.workspace.URIUtils;
import org.freeplane.plugin.workspace.WorkspaceController;
import org.freeplane.plugin.workspace.actions.AWorkspaceAction;
import org.freeplane.plugin.workspace.components.menu.CheckEnableOnPopup;
import org.freeplane.plugin.workspace.model.project.AWorkspaceProject;

@CheckEnableOnPopup
@EnabledAction(checkOnNodeChange=true)
public class ChangeBibtexDatabaseAction extends AWorkspaceAction {
	public static final String KEY = "ChangeBibtexDatabaseAction";
	/**
	 * 
	 */
	private static final long serialVersionUID = 1L;

	public ChangeBibtexDatabaseAction() {
		super(KEY);
	}

	public void actionPerformed(ActionEvent arg0) {
		AWorkspaceProject project = WorkspaceController.getSelectedProject();
		if (project != null && project instanceof DocearWorkspaceProject) {			
			JFileChooser fileChooser = new JFileChooser(URIUtils.getAbsoluteFile(((DocearWorkspaceProject) project).getBibtexDatabase()));
			fileChooser.setFileSelectionMode(JFileChooser.FILES_ONLY);
			fileChooser.setMultiSelectionEnabled(false);
			fileChooser.setFileHidingEnabled(true);
			fileChooser.setAcceptAllFileFilterUsed(false);
			fileChooser.addChoosableFileFilter(new FileFilter() {
				public String getDescription() {
					return "*.bib (" + TextUtils.getText("locationdialog.filefilter.bib") + ")";
				}

				public boolean accept(File f) {
					return (f.isDirectory() || f.getName().endsWith(".bib"));
				}
			});
			int result = fileChooser.showOpenDialog(UITools.getFrame());
			if (result == JFileChooser.APPROVE_OPTION) {
				URI uri = project.getRelativeURI(fileChooser.getSelectedFile().toURI()); 
				((DocearWorkspaceProject) project).changeBibtexURI(uri);
			}
		}
	}

	@Override
	public void setEnabled() {
		setEnabled(WorkspaceController.getSelectedProject() != null);
	}

}