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

 * 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.debug.ui.launch;

import org.eclipse.core.resources.IProject;

import org.eclipse.core.resources.IResource;

import org.eclipse.core.runtime.CoreException;

import org.eclipse.core.runtime.IAdaptable;

import org.eclipse.debug.core.DebugPlugin;

import org.eclipse.debug.core.ILaunchConfiguration;

import org.eclipse.debug.core.ILaunchConfigurationType;

import org.eclipse.debug.core.ILaunchConfigurationWorkingCopy;

import org.eclipse.debug.core.ILaunchManager;

import org.eclipse.debug.ui.DebugUITools;

import org.eclipse.debug.ui.ILaunchShortcut2;

import org.eclipse.jface.viewers.ISelection;

import org.eclipse.jface.viewers.IStructuredSelection;

import org.eclipse.ui.IEditorInput;

import org.eclipse.ui.IEditorPart;

import org.symbian.tools.wrttools.debug.internal.Activator;

import org.symbian.tools.wrttools.debug.internal.IConstants;

import org.symbian.tools.wrttools.debug.internal.launch.WidgetLaunchDelegate;

public class WidgetLaunchShortcut implements ILaunchShortcut2 {

	public IResource getLaunchableResource(IEditorPart editorpart) {

		IEditorInput input = editorpart.getEditorInput();

		return (IResource) input.getAdapter(IResource.class);

	}

	public IResource getLaunchableResource(ISelection selection) {

		if (!selection.isEmpty() && selection instanceof IStructuredSelection) {

			Object object = ((IStructuredSelection) selection)

					.getFirstElement();

			IResource resource = null;

			if (object instanceof IResource) {

				resource = (IResource) object;

			} else if (object instanceof IAdaptable) {

				resource = (IResource) ((IAdaptable) object)

						.getAdapter(IResource.class);

			}

			return resource;

		}

		return null;

	}

	public ILaunchConfiguration[] getLaunchConfigurations(IEditorPart editorpart) {

		return getLaunchConfigurations(getLaunchableResource(editorpart));

	}

	private ILaunchConfiguration getLaunchConfigurations(IProject project)

			throws CoreException {

		ILaunchManager launchManager = DebugPlugin.getDefault()

				.getLaunchManager();

		ILaunchConfigurationType type = launchManager

				.getLaunchConfigurationType(WidgetLaunchDelegate.ID);

		ILaunchConfiguration configuration = null;

		ILaunchConfiguration[] configurations = launchManager

				.getLaunchConfigurations(type);

		for (ILaunchConfiguration c : configurations) {

			if (project.getName()

					.equals(

							c.getAttribute(IConstants.PROP_PROJECT_NAME,

									(String) null))) {

				configuration = c;

				break;

			}

		}

		return configuration;

	}

	private ILaunchConfiguration[] getLaunchConfigurations(IResource resource) {

		if (resource != null) {

			try {

				ILaunchConfiguration launchConfigurations = getLaunchConfigurations(resource

						.getProject());

				if (launchConfigurations != null) {

					return new ILaunchConfiguration[] { launchConfigurations };

				}

			} catch (CoreException e) {

				Activator.log(e);

			}

		}

		return null;

	}

	public ILaunchConfiguration[] getLaunchConfigurations(ISelection selection) {

		return getLaunchConfigurations(getLaunchableResource(selection));

	}

	public void launch(IEditorPart editor, String mode) {

		launch(getLaunchableResource(editor), mode);

	}

	private void launch(IResource launchableResource, String mode) {

		try {

			IProject project = launchableResource.getProject();

			ILaunchManager launchManager = DebugPlugin.getDefault()

					.getLaunchManager();

			ILaunchConfigurationType type = launchManager

					.getLaunchConfigurationType(WidgetLaunchDelegate.ID);

			ILaunchConfiguration configuration = getLaunchConfigurations(project);

			if (configuration == null) {

				ILaunchConfigurationWorkingCopy copy = type

						.newInstance(

								null,

								launchManager

										.generateUniqueLaunchConfigurationNameFrom(project

												.getName()));

				copy.setAttribute(IConstants.PROP_PROJECT_NAME, project

						.getName());

				copy.setMappedResources(new IResource[] {project});

				configuration = copy.doSave();

			}

			DebugUITools.launch(configuration, mode);

		} catch (CoreException e) {

			Activator.log(e);

		}

	}

	public void launch(ISelection selection, String mode) {

		launch(getLaunchableResource(selection), mode);

	}

}