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

 * 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.tmw.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.tmw.debug.internal.Activator;

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

import org.symbian.tools.tmw.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

                        .generateLaunchConfigurationName(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);

    }

}