/*
 *                 Sun Public License Notice
 *
 * The contents of this file are subject to the Sun Public License
 * Version 1.0 (the "License"). You may not use this file except in
 * compliance with the License. A copy of the License is available at
 * http://www.sun.com/
 *
 * The Original Code is NetBeans. The Initial Developer of the Original
 * Code is Sun Microsystems, Inc. Portions Copyright 1997-2004 Sun
 * Microsystems, Inc. All Rights Reserved.
 */

package org.netbeans.modules.ant.freeform.ui;

import java.awt.Component;
import java.io.File;
import java.io.IOException;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.text.MessageFormat;
import java.util.ArrayList;

import java.util.HashSet;
import java.util.List;
import java.util.NoSuchElementException;
import java.util.Set;
import javax.swing.JComponent;
import javax.swing.event.ChangeListener;
import org.netbeans.api.project.Project;
import org.netbeans.api.project.ProjectManager;
import org.netbeans.modules.ant.freeform.FreeformProjectGenerator;
import org.netbeans.spi.project.support.ant.AntProjectHelper;
import org.netbeans.spi.project.support.ant.PropertyUtils;
import org.openide.ErrorManager;
import org.openide.WizardDescriptor;
import org.openide.filesystems.FileLock;
import org.openide.filesystems.FileObject;
import org.openide.filesystems.FileUtil;
import org.openide.util.NbBundle;

/**
 * @author  David Konecny, Radko Najman
 */
public class NewWebFreeformProjectWizardIterator implements WizardDescriptor.InstantiatingIterator {

    // See NewJ2SEFreeformProjectWizardIterator for list of contants 
    // defined and used by standard J2SE panels.
    
    // web sources
    public static final String PROP_WEB_WEBMODULES = "webModules"; //  NOI18N
    public static final String PROP_WEB_SOURCE_FOLDERS = "webSourceFolders"; //  NOI18N
    
    private static final long serialVersionUID = 1L;
    
    private transient int index;
    private transient WizardDescriptor.Panel[] panels;
    private transient WizardDescriptor wiz;
    
    public NewWebFreeformProjectWizardIterator() {
    }
    
    private WizardDescriptor.Panel[] createPanels () {
        return new WizardDescriptor.Panel[] {
                new BasicProjectInfoWizardPanel(),
                new TargetMappingWizardPanel("webapps"), // NOI18N
                new WebLocationsWizardPanel(),
                new SourceFoldersWizardPanel(),
                new ClasspathWizardPanel(),
            };
    }
    
    private String[] createSteps() {
            return new String[] {
                NbBundle.getMessage (NewWebFreeformProjectWizardIterator.class, "TXT_NewJ2SEFreeformProjectWizardIterator_NameAndLocation"), // NOI18N
                NbBundle.getMessage (NewWebFreeformProjectWizardIterator.class, "TXT_NewJ2SEFreeformProjectWizardIterator_BuildAndRunActions"), // NOI18N
                NbBundle.getMessage (NewWebFreeformProjectWizardIterator.class, "TXT_NewWebFreeformProjectWizardIterator_WebSources"), // NOI18N
                NbBundle.getMessage (NewWebFreeformProjectWizardIterator.class, "TXT_NewJ2SEFreeformProjectWizardIterator_SourcePackageFolders"), // NOI18N
                NbBundle.getMessage (NewWebFreeformProjectWizardIterator.class, "TXT_NewJ2SEFreeformProjectWizardIterator_Classpath") // NOI18N
            };
    }
    
    public Set/**/ instantiate () throws IOException {
        ProjectModel pm = (ProjectModel)wiz.getProperty(NewJ2SEFreeformProjectWizardIterator.PROP_PROJECT_MODEL);
        File nbProjectFolder = pm.getNBProjectFolder();
        String projName = (String)wiz.getProperty(NewJ2SEFreeformProjectWizardIterator.PROP_PROJECT_NAME);
        File antScript = (File)wiz.getProperty(NewJ2SEFreeformProjectWizardIterator.PROP_ANT_SCRIPT);
        if (antScript.getParentFile().equals(nbProjectFolder) && antScript.getName().equals("build.xml")) { // NOI18N
            // default location of build file
            antScript = null;
        }
        List mappings = (List)wiz.getProperty(NewJ2SEFreeformProjectWizardIterator.PROP_TARGET_MAPPINGS);
        
        List webSources = (List)wiz.getProperty(PROP_WEB_SOURCE_FOLDERS);
        // at the moment always only one web-root
        assert webSources.size() == 1;
        pm.addSourceFolder((FreeformProjectGenerator.SourceFolder)webSources.get(0));
        
        List webModules = (List) wiz.getProperty(PROP_WEB_WEBMODULES);
        
        ProjectModel.instantiateWebProject(pm, projName, antScript, mappings, webModules);
        
        Set resultSet = new HashSet();
        resultSet.add(FileUtil.toFileObject(nbProjectFolder));
        return resultSet;
    }
    
        
    public void initialize(WizardDescriptor wiz) {
        this.wiz = wiz;
        index = 0;
        panels = createPanels();
        // Make sure list of steps is accurate.
        String[] steps = createSteps();
        for (int i = 0; i < panels.length; i++) {
            Component c = panels[i].getComponent();
//            if (steps[i] == null) {
//                // Default step name to component name of panel.
//                // Mainly useful for getting the name of the target
//                // chooser to appear in the list of steps.
//                steps[i] = c.getName();
//            }
            assert c instanceof JComponent;
            JComponent jc = (JComponent)c;
            // Step #.
            jc.putClientProperty("WizardPanel_contentSelectedIndex", new Integer(i)); // NOI18N
            // Step name (actually the whole list for reference).
            jc.putClientProperty("WizardPanel_contentData", steps); // NOI18N
            // Name of panel
            jc.setName(steps[i]);
            // set title
            jc.putClientProperty ("NewProjectWizard_Title", NbBundle.getMessage (NewWebFreeformProjectWizardIterator.class, "TXT_NewWebFreeformProjectWizardIterator_NewProjectWizardTitle")); // NOI18N
        }
    }
    
    public void uninitialize(WizardDescriptor wiz) {
        wiz.putProperty(NewJ2SEFreeformProjectWizardIterator.PROP_ANT_SCRIPT, null);
        wiz.putProperty(NewJ2SEFreeformProjectWizardIterator.PROP_PROJECT_NAME, null);
        wiz.putProperty(NewJ2SEFreeformProjectWizardIterator.PROP_TARGET_MAPPINGS, null);
        wiz.putProperty(NewJ2SEFreeformProjectWizardIterator.PROP_PROJECT_MODEL, null);
        wiz.putProperty(PROP_WEB_SOURCE_FOLDERS, null);
        wiz.putProperty(PROP_WEB_WEBMODULES, null);
        this.wiz = null;
        panels = null;
    }
    
    public String name() {
        return MessageFormat.format (NbBundle.getMessage(NewWebFreeformProjectWizardIterator.class, "TXT_NewJ2SEFreeformProjectWizardIterator_TitleFormat"), // NOI18N
            new Object[] {new Integer (index + 1), new Integer (panels.length) });
    }
    
    public boolean hasNext() {
        if (current() instanceof SourceFoldersWizardPanel) {
            assert current().getComponent() instanceof SourceFoldersPanel;
            SourceFoldersPanel sfp = (SourceFoldersPanel)current().getComponent();
            if (!sfp.hasSomeSourceFolder()) {
                return false;
            }
        }
        return index < panels.length - 1;
    }
    public boolean hasPrevious() {
        return index > 0;
    }
    public void nextPanel() {
        if (!hasNext()) throw new NoSuchElementException();
        index++;
    }
    public void previousPanel() {
        if (!hasPrevious()) throw new NoSuchElementException();
        index--;
    }
    public WizardDescriptor.Panel current () {
        return panels[index];
    }
    
    // If nothing unusual changes in the middle of the wizard, simply:
    public final void addChangeListener(ChangeListener l) {}
    public final void removeChangeListener(ChangeListener l) {}
    
}