package com.corba.mnq.ns;

import com.corba.mnq.tool.CorbaFacility;
import com.corba.mnq.ui.MNQMutableTreeNode;

import javax.swing.JFileChooser;
import javax.swing.JFrame;
import javax.swing.JOptionPane;
import javax.swing.JScrollPane;
import javax.swing.JSplitPane;
import javax.swing.JTree;
import javax.swing.tree.DefaultTreeModel;

import java.io.FileInputStream;

import org.omg.CosNaming.NamingContextExt;
import org.omg.CosNaming.NamingContextExtHelper;

public class NSUtil {

    public static JFrame frame = null;

    public static JSplitPane splitPane = null;

    private static NSHandler handler;

    public static void init(JFrame f) {
        if (frame != null)
            return;
        frame = f;
        DefaultTreeModel treeModel = new DefaultTreeModel(new MNQMutableTreeNode("NsRoot"));
        treeModel.setAsksAllowsChildren(false);
        JTree tree = new JTree(treeModel);
        tree.setRootVisible(false);
        handler = new NSHandler(f, tree);
        tree.addMouseListener(handler);
        tree.addKeyListener(handler);
        splitPane = new JSplitPane(JSplitPane.VERTICAL_SPLIT);
        JScrollPane treeScrollPane = new JScrollPane(tree);
        splitPane.setTopComponent(treeScrollPane);
    }

    public static void reset() {
        if (frame == null)
            return;

        JFileChooser dlg = new JFileChooser();
        dlg.setDialogTitle("OpenNamingServiceIOR");
        if (dlg.showOpenDialog(frame) == JFileChooser.APPROVE_OPTION) {
            String fname = dlg.getSelectedFile().getPath();
            connectNS(fname);
        }
    }

    private static String getIorFromFile(String file) {
        String ior = null;
        try {
            FileInputStream fis = new FileInputStream(file);
            String str = "";
            while (fis.available() != 0) {
                byte[] bA = new byte[fis.available()];
                int numRead = fis.read(bA);
                System.out.println(numRead);
                if (numRead > 0) {
                    str += new String(bA, 0, numRead);
                }
                // continue
            }
            ior = str;
            fis.close();
            // java.io.BufferedReader in =
            // new java.io.BufferedReader(new java.io.FileReader( file
            // ) );
            // ior = in.readLine();
            // while (ior.indexOf("IOR:") != 0)
            // ior = in.readLine();
            // in.close();
        } catch (java.io.IOException io) {
            io.printStackTrace();
        }
        return ior;
    }

    private static void connectNS(String iorfile) {
        NamingContextExt rootContext = null;
        try {
            String ior = getIorFromFile(iorfile);
            if (ior == null) {
                JOptionPane.showMessageDialog(frame, "Invalid IOR file", "Operation tip",
                        JOptionPane.ERROR_MESSAGE);
            }
            rootContext = NamingContextExtHelper.narrow(CorbaFacility.orb.string_to_object(ior));

            // org.omg.CORBA.Object obj =
            // CorbaFacility.orb.string_to_object("corbaloc:ssliop:" +
            // "1.2@140.231.249.169"
            // + ":" + "2062" + "/StandardNS/NameServer-POA/_root");
            // System.out.println(obj.toString());
            // rootContext = NamingContextExtHelper.narrow(obj);
        } catch (Exception e) {
            e.printStackTrace();
            JOptionPane.showMessageDialog(frame, "Could not find name service", "Operation tip",
                    JOptionPane.ERROR_MESSAGE);
            return;
        }

        if (rootContext == null) {
            JOptionPane.showMessageDialog(frame, "Could not find name service", "Operation tip",
                    JOptionPane.ERROR_MESSAGE);
            return;
        }

        NSTable nstab = new NSTable();
        NSTree tree = new NSTree(nstab, rootContext, CorbaFacility.orb);

        JScrollPane tableScrollPane = new JScrollPane(nstab);
        JScrollPane treeScrollPane = new JScrollPane(tree);

        splitPane.setTopComponent(treeScrollPane);
        splitPane.setBottomComponent(tableScrollPane);
        // splitPane.setDividerLocation(200);
        // splitPane.setDividerSize(2);
        // tree.update();
        handler.reset(tree, nstab);

        tree.addMouseListener(handler);
        tree.addKeyListener(handler);
        nstab.addMouseListener(handler);
        nstab.addKeyListener(handler);
    }

    /**
     * @param args
     */
    public static void main_(String[] args) {
        // TODO Auto-generated method stub

    }

}