/*
 * Copyright (C) 2012 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.motorola.studio.android.wizards.buildingblocks;

import java.lang.reflect.InvocationTargetException;
import java.util.List;

import org.eclipse.core.resources.IResource;
import org.eclipse.core.resources.IncrementalProjectBuilder;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.jdt.core.ICompilationUnit;
import org.eclipse.jdt.ui.JavaUI;
import org.eclipse.jface.operation.IRunnableWithProgress;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.wizard.IWizardPage;
import org.eclipse.ui.IWorkbench;

import com.motorola.studio.android.codeutils.CodeUtilsActivator;
import com.motorola.studio.android.codeutils.i18n.CodeUtilsNLS;
import com.motorola.studio.android.common.exception.AndroidException;
import com.motorola.studio.android.common.log.StudioLogger;
import com.motorola.studio.android.common.utilities.EclipseUtils;
import com.motorola.studio.android.model.ActivityBasedOnTemplate;
import com.motorola.studio.android.model.BuildingBlockModel;
import com.motorola.studio.android.model.IDatabaseSampleActivityParametersWizardCollector;

/**
 * Class that implements the Activity Wizard
 */
public class NewActivityBasedOnTemplateWizard extends NewBuildingBlocksWizard
{
    private static final String WIZBAN_ICON = "icons/wizban/new_activity_template_wiz.png"; //$NON-NLS-1$

    private final ActivityBasedOnTemplate activity = new ActivityBasedOnTemplate();

    /*
     * IRunnableWithProgress object to create the activity
     */
    private class DoSave implements IRunnableWithProgress
    {
        AndroidException exception = null;

        boolean saved = false;

        public void run(IProgressMonitor monitor) throws InvocationTargetException,
                InterruptedException
        {
            try
            {
                saved = getBuildingBlock().save(getContainer(), monitor);
                getBuildingBlock().getProject().refreshLocal(IResource.DEPTH_INFINITE, monitor);
                getBuildingBlock().getProject().build(IncrementalProjectBuilder.INCREMENTAL_BUILD,
                        monitor);
            }
            catch (CoreException ce)
            {
                //build failed - show a warning message
                StudioLogger.error(this.getClass(), ce.getMessage(), ce);
                EclipseUtils
                        .showWarningDialog(
                                CodeUtilsNLS.UI_NewActivityWizard_TitleNewActivityWizard,
                                CodeUtilsNLS.NewActivityWizard_MessageSomeProblemsOccurredWhileBuildingProject);
            }
            catch (AndroidException e)
            {
                exception = e;
            }
        }
    }

    /* (non-Javadoc)
     * @see org.eclipse.jface.wizard.Wizard#canFinish()
     */
    @Override
    public boolean canFinish()
    {
        return (!activity.needMoreInformation())
                && !(getContainer().getCurrentPage() instanceof ActivitySampleSelectionPage);
    }

    /* (non-Javadoc)
     * @see org.eclipse.jface.wizard.Wizard#performFinish()
     */
    @Override
    public boolean performFinish()
    {
        boolean saved = false;

        try
        {
            DoSave doSave = new DoSave();

            getContainer().run(false, false, doSave);

            if (doSave.exception != null)
            {
                throw doSave.exception;
            }
            else
            {
                saved = doSave.saved;
            }
        }
        catch (Exception e)
        {
            IStatus status =
                    new Status(IStatus.ERROR, CodeUtilsActivator.PLUGIN_ID, e.getLocalizedMessage());
            EclipseUtils.showErrorDialog(CodeUtilsNLS.UI_GenericErrorDialogTitle,
                    CodeUtilsNLS.ERR_BuildingBlockCreation_ErrorMessage, status);
        }

        if (saved)
        {
            ICompilationUnit javaFile =
                    getBuildingBlock().getPackageFragment().getCompilationUnit(
                            getBuildingBlock().getName() + ".java"); //$NON-NLS-1$

            if ((javaFile != null) && javaFile.exists())
            {
                try
                {
                    JavaUI.openInEditor(javaFile);
                }
                catch (Exception e)
                {
                    // Do nothing
                    StudioLogger.error(NewActivityBasedOnTemplateWizard.class,
                            "Could not open the activity " //$NON-NLS-1$
                                    + getBuildingBlock().getName() + " on an editor.", e); //$NON-NLS-1$
                }
            }
        }

        if (saved)
        {
            // Collecting usage data for statistical purposes
            try
            {
                StudioLogger.collectUsageData(StudioLogger.WHAT_BUILDINGBLOCK_ACTIVITY,
                        StudioLogger.KIND_BUILDINGBLOCK, StudioLogger.DESCRIPTION_DEFAULT,
                        CodeUtilsActivator.PLUGIN_ID, CodeUtilsActivator.getDefault().getBundle()
                                .getVersion().toString());
            }
            catch (Throwable e)
            {
                //Do nothing, but error on the log should never prevent app from working
            }
        }
        return saved;
    }

    /* (non-Javadoc)
     * @see org.eclipse.ui.IWorkbenchWizard#init(org.eclipse.ui.IWorkbench, org.eclipse.jface.viewers.IStructuredSelection)
     */
    public void init(IWorkbench workbench, IStructuredSelection selection)
    {
        setWindowTitle(CodeUtilsNLS.UI_NewActivityWizard_TitleNewActivityBasedOnTemplateWizard);
        setNeedsProgressMonitor(true);
        setDefaultPageImageDescriptor(CodeUtilsActivator.getImageDescriptor(WIZBAN_ICON));
        activity.configure(selection);
    }

    /* (non-Javadoc)
     * @see org.eclipse.jface.wizard.Wizard#addPages()
     */
    @Override
    public void addPages()
    {
        addPage(new ActivitySampleSelectionPage(activity));
        addPage(new NewActivityBasedOnTemplatePage(activity));
        IDatabaseSampleActivityParametersWizardCollector collector =
                activity.getDatabaseSampleActivityParametersWizardCollector();
        if (collector != null)
        {
            List<IWizardPage> contributedPageList = collector.getWizardPages();
            if (contributedPageList != null)
            {
                for (IWizardPage page : contributedPageList)
                {
                    if (page instanceof NewBuildingBlocksWizardPage)
                    {
                        //there is page to select parameters for activity creation
                        NewBuildingBlocksWizardPage buildBlockPage =
                                (NewBuildingBlocksWizardPage) page;
                        buildBlockPage.setBuildBlock(activity);
                        addPage(buildBlockPage);
                    }
                }
            }
        }
        addPage(new NewActivityWizardListTemplatesPage(activity));

    }

    /* (non-Javadoc)
     * @see com.motorola.studio.android.wizards.buildingblocks.NewBuildingBlocksWizard#getBuildingBlock()
     */
    @Override
    protected BuildingBlockModel getBuildingBlock()
    {
        return activity;
    }
}