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/**

 * gvSIG. Desktop Geographic Information System.

 *

 * Copyright (C) 2007-2013 gvSIG Association.

 *

 * 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 3

 * 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., 51 Franklin Street, Fifth Floor, Boston,

 * MA  02110-1301, USA.

 *

 * For any additional information, do not hesitate to contact us

 * at info AT gvsig.com, or visit our website www.gvsig.com.

 */

package org.gvsig.coreplugin.preferences.general;

import java.awt.BorderLayout;

import java.awt.Dimension;

import java.awt.FlowLayout;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.awt.event.KeyEvent;

import java.awt.event.KeyListener;

import java.io.BufferedReader;

import java.io.BufferedWriter;

import java.io.File;

import java.io.FileInputStream;

import java.io.FileOutputStream;

import java.io.FileReader;

import java.io.IOException;

import java.io.OutputStreamWriter;

import java.io.Reader;

import java.io.Writer;

import java.util.HashMap;

import java.util.Iterator;

import javax.swing.BorderFactory;

import javax.swing.ImageIcon;

import javax.swing.JCheckBox;

import javax.swing.JLabel;

import javax.swing.JPanel;

import javax.swing.JScrollPane;

import javax.swing.JTextArea;

import javax.swing.JTextField;

import javax.swing.border.TitledBorder;

import org.exolab.castor.xml.MarshalException;

import org.exolab.castor.xml.ValidationException;

import org.gvsig.andami.Launcher;

import org.gvsig.andami.PluginServices;

import org.gvsig.andami.plugins.config.generate.Extension;

import org.gvsig.andami.plugins.config.generate.PluginConfig;

import org.gvsig.andami.preferences.AbstractPreferencePage;

import org.gvsig.andami.preferences.StoreException;

public class ExtensionPage extends AbstractPreferencePage {

        private Extension extension;

        private JPanel jPanel = null;

        private JScrollPane jScrollPane = null;

        private JTextArea jTextArea = null;

        private JPanel jPanel1 = null;

        private JPanel jPanel2 = null;

        private JTextField jTextField = null;

        private JLabel jLabel = null;

        private JLabel jLabel1 = null;

        private JCheckBox chbActivar = null;

        private ImageIcon icon;

        private boolean chkSelected;

        private int txtPriority;

        private boolean changed = false;

        private MyAction myAction = new MyAction();

        /**

         * This is the default constructor

         */

        public ExtensionPage(Extension extension) {

                super();

                icon = PluginServices.getIconTheme().get("edit-setup-extension");

                this.extension=extension;

                setParentID(ExtensionsPage.class.getName());

                initialize();

        }

        /**

         * This method initializes this

         *

         * @return void

         */

        private void initialize() {

                this.setLayout(new BorderLayout());

                this.setSize(451, 234);

                this.add(getJPanel(), java.awt.BorderLayout.NORTH);

                this.add(getJPanel1(), java.awt.BorderLayout.CENTER);

                this.add(getJPanel2(), java.awt.BorderLayout.SOUTH);

        }

        public String getID() {

                return extension.getClassName();

        }

        public String getTitle() {

                return extension.getClassName();

        }

        public JPanel getPanel() {

                return this;

        }

        public void initializeValues() {

                getChbActivar().setSelected(((Extension) Launcher.getExtension(extension.getClassName())).getActive());

                getJTextField().setText(String.valueOf(extension.getPriority()));

                getJTextArea().setText(format(((Extension) Launcher.getExtension(extension.getClassName())).getDescription(),40));

                chkSelected = getChbActivar().isSelected();

                txtPriority = extension.getPriority();

        }

        public void storeValues() throws StoreException {

//                int pri;

//                try {

//                        pri = Integer.parseInt(getJTextField().getText());

//                } catch (Exception e){

//                        throw new StoreException( PluginServices.getText(this, "invalid_priority_value"),e);

//                }

//                extension.setActive(chbActivar.isSelected());

//                extension.setPriority(pri);

//                // Se escribe el config de los plugins

//                marshalPlugins();

        }

        /**

         * Escribe sobre el config.xml, la nueva configuraci?n.

         */

        public void marshalPlugins() {

                HashMap pc = Launcher.getPluginConfig();

                Iterator iter = pc.keySet().iterator();

                while (iter.hasNext()) {

                        Object obj = iter.next();

                        PluginConfig pconfig = (PluginConfig) pc.get(obj);

                        Writer writer;

                        try {

                                FileOutputStream fos = new FileOutputStream(Launcher.getAndamiConfig().getPluginsDirectory() +

                                                File.separator + (String) obj + File.separator +

                                                "config.xml");

                                // castor uses xerces, and xerces uses UTF-8 by default, so we should use

                                // UTF-8 to create the writer, as long as we continue using castor+xerces

                                writer = new BufferedWriter(new OutputStreamWriter(fos, "UTF-8"));

                                try {

                                        pconfig.marshal(writer);

                                } catch (MarshalException e1) {

                                        e1.printStackTrace();

                                } catch (ValidationException e1) {

                                        e1.printStackTrace();

                                }

                        } catch (IOException e) {

                                e.printStackTrace();

                        }

                        //hay que refrescar la aplicaci?n

                        ///((App)App.instance).run();

                }

        }

        /**

         * Lee del config.xml la configuraci?n.

         */

        public void unmarshalPlugins() {

                HashMap pc = Launcher.getPluginConfig();

                Iterator iter = pc.keySet().iterator();

                while (iter.hasNext()) {

                        Object obj = iter.next();

                        PluginConfig pconfig = (PluginConfig) pc.get(obj);

                        try {

                                String fileName = Launcher.getAndamiConfig().getPluginsDirectory() + File.separator + (String) obj + File.separator +        "config.xml";

                                FileInputStream is = new FileInputStream(fileName);

                                Reader reader = org.gvsig.utils.xml.XMLEncodingUtils.getReader(is);

                                if (reader==null) {

                                        // the encoding was not correctly detected, use system default

                                        reader = new FileReader(fileName);

                                }

                                else {

                                        // use a buffered reader to improve performance

                                        reader = new BufferedReader(reader);

                                }

                                pconfig=(PluginConfig)PluginConfig.unmarshal(reader);

                                Launcher.getPluginConfig().put(obj,pconfig);

                        } catch (Exception e) {

                                System.out.println("Exception unmarshalPlugin " + e);

                        }

                }

                //hay que refrescar la aplicaci?n

                ///((App)App.instance).run();

        }

        public void initializeDefaults() {

                unmarshalPlugins();

                getChbActivar().setSelected(((Extension) Launcher.getExtension(extension.getClassName())).getActive());

                getJTextField().setText(String.valueOf(extension.getPriority()));

                getJTextArea().setText(format(((Extension) Launcher.getExtension(extension.getClassName())).getDescription(),40));

        }

        public ImageIcon getIcon() {

                return icon;

        }

        /**

         * This method initializes jPanel

         *

         * @return javax.swing.JPanel

         */

        private JPanel getJPanel() {

                if (jPanel == null) {

                        jPanel = new JPanel();

                        jPanel.setLayout(new FlowLayout());

                        jPanel.setBorder(BorderFactory.createTitledBorder(null, PluginServices.getText(this, "descripcion"), TitledBorder.DEFAULT_JUSTIFICATION, TitledBorder.DEFAULT_POSITION, null, null));

                        jPanel.add(getJScrollPane(), null);

                }

                return jPanel;

        }

        /**

         * This method initializes jScrollPane

         *

         * @return javax.swing.JScrollPane

         */

        private JScrollPane getJScrollPane() {

                if (jScrollPane == null) {

                        jScrollPane = new JScrollPane();

                        jScrollPane.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED);

                        jScrollPane.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);

                        jScrollPane.setViewportView(getJTextArea());

                }

                return jScrollPane;

        }

        /**

         * This method initializes jTextArea

         *

         * @return javax.swing.JTextArea

         */

        private JTextArea getJTextArea() {

                if (jTextArea == null) {

                        jTextArea = new JTextArea();

                        jTextArea.setEnabled(false);

                        jTextArea.setText("");

                        jTextArea.setEditable(false);

                        jTextArea.setLineWrap(true);

                        jTextArea.setWrapStyleWord(true);

                        jTextArea.setPreferredSize(new Dimension(320, 170));

                        jTextArea.addKeyListener(myAction);

                }

                return jTextArea;

        }

        /**

         * This method initializes chbActivar

         *

         * @return javax.swing.JCheckBox

         */

        private JCheckBox getChbActivar() {

                if (chbActivar == null) {

                        chbActivar = new JCheckBox();

                        chbActivar.setSelected(true);

                        chbActivar.setEnabled(false);

                        chbActivar.setText(PluginServices.getText(this, "extension_activada"));

                        chbActivar.addActionListener(myAction);

                }

                return chbActivar;

        }

        /**

         * This method initializes jPanel1

         *

         * @return javax.swing.JPanel

         */

        private JPanel getJPanel1() {

                if (jPanel1 == null) {

                        jLabel = new JLabel();

                        jLabel.setText(PluginServices.getText(this, "prioridad"));

                        jPanel1 = new JPanel();

                        jPanel1.add(getChbActivar(), null);

                        jPanel1.add(getJTextField(), null);

                        jPanel1.add(jLabel, null);

                }

                return jPanel1;

        }

        /**

         * This method initializes jPanel1

         *

         * @return javax.swing.JPanel

         */

        private JPanel getJPanel2() {

                if (jPanel2 == null) {

                        jLabel1 = new JLabel();

                        jLabel1.setText(PluginServices.getText(this, "Los_cambios_efectuados_sobre_estos_valores_se_aplicaran_al_reiniciar_la_aplicacion"));

                        jPanel2 = new JPanel();

                        jPanel2.add(jLabel1, null);                        

                }

                return jPanel2;

        }

        /**

         * This method initializes jTextField

         *

         * @return javax.swing.JTextField

         */

        private JTextField getJTextField() {

                if (jTextField == null) {

                        jTextField = new JTextField();

                        jTextField.setEnabled(false);

                        jTextField.setPreferredSize(new Dimension(40, 20));

                        jTextField.addKeyListener(myAction);

                }

                return jTextField;

        }

        /**

     * Cuts the message text to force its lines to be shorter or equal to

     * lineLength.

     * @param message, the message.

     * @param lineLength, the max line length in number of characters.

     * @return the formated message.

     */

    private static String format(String message, int lineLength){

            if (message==null)

                 return "";

            if (message.length() <= lineLength) return message;

        String[] lines = message.split(" ");

        String theMessage = "";

        String line="";

        int i=0;

        while (i<lines.length) {

                while (i<lines.length && lineLength>line.length()) {

                        line=line.concat(lines[i]+" ");

                        i++;

                }

                theMessage=theMessage.concat(line+"\n");

                line="";

        }

        return theMessage;

    }

    private class MyAction implements ActionListener, KeyListener {

                public void actionPerformed(ActionEvent e) { changed = true; System.out.println("actionperformed");}

                public void keyPressed(KeyEvent e) { changed = true; System.out.println("keypressed"); }

                public void keyReleased(KeyEvent e) { changed = true; System.out.println("keyreleased");}

                public void keyTyped(KeyEvent e) { changed = true; System.out.println("keytyped");}

        }

        public boolean isValueChanged() {

                return changed;

        }

        public void setChangesApplied() {

                changed = false;

        }

}  //  @jve:decl-index=0:visual-constraint="10,10"