/*

* Copyright (c) 2009 Nokia Corporation 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:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description: 

* The activator class controls the plug-in life cycle

*

*/

package com.nokia.carbide.cpp.internal.qt.core;

import java.util.List;

import org.eclipse.core.resources.IProject;

import org.eclipse.core.resources.IProjectDescription;

import org.eclipse.core.runtime.CoreException;

import org.eclipse.core.runtime.IProgressMonitor;

import org.eclipse.core.runtime.IStatus;

import org.eclipse.core.runtime.Plugin;

import org.eclipse.core.runtime.Status;

import org.eclipse.core.runtime.jobs.Job;

import org.osgi.framework.BundleContext;

import com.nokia.carbide.cpp.internal.api.sdk.ISDKManagerLoadedHook;

import com.nokia.carbide.cpp.sdk.core.ICarbideInstalledSDKChangeListener;

import com.nokia.carbide.cpp.sdk.core.ISymbianSDK;

import com.nokia.carbide.cpp.sdk.core.SDKCorePlugin;

import com.trolltech.qtcppproject.QtNature;

public class QtCorePlugin extends Plugin implements ISDKManagerLoadedHook, ICarbideInstalledSDKChangeListener {

	// The plug-in ID

	public static final String PLUGIN_ID = "com.nokia.carbide.cpp.qt.core"; //$NON-NLS-1$

	public static final String QT_PROJECT_NATURE_ID = QtNature.QT_NATURE_ID;

	// The shared instance

	private static QtCorePlugin plugin;

	/**

	 * The constructor

	 */

	public QtCorePlugin() {

	}

	/*

	 * (non-Javadoc)

	 * @see org.eclipse.core.runtime.Plugins#start(org.osgi.framework.BundleContext)

	 */

	public void start(BundleContext context) throws Exception {

		super.start(context);

		plugin = this;

	}

	/*

	 * (non-Javadoc)

	 * @see org.eclipse.core.runtime.Plugin#stop(org.osgi.framework.BundleContext)

	 */

	public void stop(BundleContext context) throws Exception {

		SDKCorePlugin.getSDKManager().removeInstalledSdkChangeListener(this);

		plugin = null;

		super.stop(context);

	}

	/**

	 * Returns the shared instance

	 *

	 * @return the shared instance

	 */

	public static QtCorePlugin getDefault() {

		return plugin;

	}

	public static void addQtNature(IProject project, IProgressMonitor monitor) throws CoreException {

		IProjectDescription description = project.getDescription();

		String[] prevNatures = description.getNatureIds();

		for (String prevNature : prevNatures) {

			if (QtCorePlugin.QT_PROJECT_NATURE_ID.equals(prevNature)) {

				return;

			}

		}

		String[] newNatures = new String[prevNatures.length + 1];

		System.arraycopy(prevNatures, 0, newNatures, 0, prevNatures.length);

		newNatures[prevNatures.length] = QtCorePlugin.QT_PROJECT_NATURE_ID;

		description.setNatureIds(newNatures);

		project.setDescription(description, monitor);

	}

	public static boolean isQtProject(IProject project) {

		if (project == null)

			return false;

		try {

			return project.hasNature(QT_PROJECT_NATURE_ID);

		} catch (CoreException e) {

			getDefault().getLog().log(e.getStatus());

			return false;

		}

	}

	private void scanForQtSDKs(){

		final String jobBaseText = "Checking for Qt installed in Symbian SDKs";

		Job job = new Job(jobBaseText) {

			@Override

			protected IStatus run(IProgressMonitor monitor) {

				List<ISymbianSDK> sdkList = SDKCorePlugin.getSDKManager().getSDKList();

				for (ISymbianSDK sdk : sdkList){

					QtSDKUtils.addQtSDKForSymbianSDK(sdk, false);

				}

				return Status.OK_STATUS;

			} 

		};

		job.schedule();

	}

	/**

	 * ISDKManagerLoadedHook extension implementation

	 */

	public void symbianSDKManagerLoaded() {

	}

	/**

	 * Implements ICarbideInstalledSDKChangeListener. Ensures the Qt-SDK list is up to date with scanned Symbian SDKs

	 */

	public void installedSdkChanged(SDKChangeEventType eventType) {

		scanForQtSDKs();

	}

}