package waypoints; 

import static org.openstreetmap.josm.tools.I18n.tr;

import java.awt.event.ActionEvent;
import java.awt.event.InputEvent;
import java.awt.event.KeyEvent;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.util.Collection;
import java.util.LinkedList;

import javax.swing.JFileChooser;
import javax.swing.JOptionPane;

import javax.xml.parsers.ParserConfigurationException;

import org.openstreetmap.josm.Main;
import org.openstreetmap.josm.data.osm.DataSet;
import org.openstreetmap.josm.gui.layer.OsmDataLayer;
import org.openstreetmap.josm.actions.DiskAccessAction;
import org.openstreetmap.josm.tools.Shortcut;
import org.xml.sax.SAXException;

/**
 * Based on standard JOSM OpenAction 
 * For opening a waypoint file to convert to nodes.
 */
public class WaypointOpenAction extends DiskAccessAction {
    
    /**
     * Create an open action. The name is "Open a file".
     */
    public WaypointOpenAction() {
        super(tr("Open waypoints file"), "open", tr("Open a waypoints file."),
        Shortcut.registerShortcut("tools:waypoints", tr("Menu: {0}",
        tr("Open waypoints file")), KeyEvent.VK_W, Shortcut.GROUP_MENU, Shortcut.SHIFT_DEFAULT));
    }

    public void actionPerformed(ActionEvent e) {
        JFileChooser fc = createAndOpenFileChooser(true, true, null);
        if (fc == null)
            return;
        File[] files = fc.getSelectedFiles();
        for (int i = files.length; i > 0; --i)
            openFile(files[i-1]);
    }

    /**
     * Open the given file.
     */
    public void openFile(File file) {
        String fn = file.getName();
        try {
                DataSet dataSet = 
                        WaypointReader.parse(new FileInputStream(file));
                Main.main.addLayer(new OsmDataLayer(dataSet, file.getName(), 
                                        file));
        } catch (SAXException x) {
            x.printStackTrace();
            JOptionPane.showMessageDialog(Main.parent, 
                    tr("Error while parsing {0}",fn)+": "+x.getMessage());
        } catch (ParserConfigurationException x) {
            x.printStackTrace(); // broken SAXException chaining
            JOptionPane.showMessageDialog(Main.parent, 
                    tr("Error while parsing {0}",fn)+": "+x.getMessage());
        } catch (IOException x) {
            x.printStackTrace();
            JOptionPane.showMessageDialog(Main.parent, 
                    tr("Could not read \"{0}\"",fn)+"\n"+x.getMessage());
        }
    }
}