/*******************************************************************************

 * Copyright (c) 2009 Symbian Foundation and/or its subsidiary(-ies).

 * All rights reserved.

 * This component and the accompanying materials are made available

 * under the terms of the License "Eclipse Public License v1.0"

 * which accompanies this distribution, and is available

 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

 *

 * Initial Contributors:

 * Symbian Foundation - initial contribution.

 * Contributors:

 * Description:

 * Overview:

 * Details:

 * Platforms/Drives/Compatibility:

 * Assumptions/Requirement/Pre-requisites:

 * Failures and causes:

 **/

package org.symbian.tools.wrttools.core;

import java.net.URL;

import java.util.Arrays;

import java.util.HashSet;

import java.util.Set;

import java.util.TreeSet;

import org.eclipse.core.databinding.DataBindingContext;

import org.eclipse.core.runtime.CoreException;

import org.eclipse.core.runtime.IConfigurationElement;

import org.eclipse.core.runtime.IExtensionPoint;

import org.eclipse.core.runtime.Platform;

import org.eclipse.jface.resource.ImageDescriptor;

import org.eclipse.swt.graphics.Image;

import org.osgi.framework.Bundle;

import org.symbian.tools.wrttools.Activator;

import org.symbian.tools.wrttools.core.libraries.JSLibrary;

import org.symbian.tools.wrttools.wizards.IWizardPageFactory;

import org.symbian.tools.wrttools.wizards.WRTProjectFilesWizardPage;

import org.symbian.tools.wrttools.wizards.WizardContext;

public class ProjectTemplate {

    private static ProjectTemplate[] templates;

    private final IConfigurationElement element;

    private Image icon;

    public ProjectTemplate(IConfigurationElement element) {

        this.element = element;

    }

    public Image getIcon() {

        if (icon == null) {

            String path = element.getAttribute("icon");

            final ImageDescriptor imageDescriptor;

            if (path != null) {

            } else {

                imageDescriptor = ImageDescriptor.getMissingImageDescriptor();

            }

            icon = imageDescriptor.createImage(true);

        }

        return icon;

    }

    public String getName() {

        return element.getAttribute("name");

    }

    public String getDescription() {

        IConfigurationElement[] children = element.getChildren("description");

        if (children.length == 1) {

            return children[0].getValue();

        } else {

            return "";

        }

    }

    private String[] getLibraryIds() {

        String[] ids = new String[elements.length];

        for (int i = 0; i < elements.length; i++) {

            IConfigurationElement element = elements[i];

            ids[i] = element.getValue();

        }

        return ids;

    }

    public static ProjectTemplate[] getAllTemplates() {

        if (templates == null) {

            IConfigurationElement[] elements = point.getConfigurationElements();

            templates = new ProjectTemplate[elements.length];

            for (int i = 0; i < elements.length; i++) {

                IConfigurationElement element = elements[i];

                templates[i] = new ProjectTemplate(element);

            }

        }

        return templates;

    }

    public String getDefaultCssFile() {

        String file = element.getAttribute("default-css-name");

        return file != null ? file : "main";

    }

    public String getDefaultJsFile() {

        String file = element.getAttribute("default-js-name");

        return file != null ? file : "main";

    }

    public String getDefaultHtmlFile() {

        String file = element.getAttribute("default-html-name");

        return file != null ? file : "index";

    }

        try {

            if (element.getAttribute("wizard-page-factory") != null) {

                IWizardPageFactory factory = (IWizardPageFactory) element

                        .createExecutableExtension("wizard-page-factory");

                return factory.createPage(context, bindingContext);

            }

        } catch (CoreException e) {

            Activator.log("Problem with template " + getName(), e);

        }

        return new WRTProjectFilesWizardPage(context, bindingContext);

    }

    @Override

    public String toString() {

        return getName();

    }

    public URL getProjectContents() {

        String uri = element.getAttribute("archive");

        if (uri != null) {

            URL resource = bundle.getResource(uri);

            return resource;

        }

        return null;

    }

    public boolean requires(JSLibrary library) {

        for (String id : getLibraryIds()) {

            if (library.getId().equals(id)) {

                return true;

            }

        }

        return false;

    }

    public JSLibrary[] getRequiredLibraries() {

        Set<String> ids = new TreeSet<String>(Arrays.asList(getLibraryIds()));

        Set<JSLibrary> libraries = new HashSet<JSLibrary>();

        JSLibrary[] jsLibraries = Activator.getJSLibraries();

        for (JSLibrary jsLibrary : jsLibraries) {

            if (ids.contains(jsLibrary.getId())) {

                libraries.add(jsLibrary);

            }

        }

        return libraries.toArray(new JSLibrary[libraries.size()]);

    }

    public int getOrder() {

        String attribute = element.getAttribute("order");

        if (attribute != null) {

            return Integer.parseInt(attribute);

        }

        return Integer.MAX_VALUE;

    }

}