/*

* 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 "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:

*

*/

package com.nokia.s60tools.appdep.ui.actions;

import java.util.ArrayList;

import java.util.Arrays;

import java.util.List;

import org.eclipse.jface.resource.ImageDescriptor;

import org.eclipse.jface.window.Window;

import org.eclipse.swt.SWT;

import org.eclipse.swt.widgets.Shell;

import org.eclipse.ui.ISharedImages;

import org.eclipse.ui.PlatformUI;

import com.nokia.s60tools.appdep.core.AppDepSettings;

import com.nokia.s60tools.appdep.core.ITargetPlatform;

import com.nokia.s60tools.appdep.core.job.GenerateCacheJob;

import com.nokia.s60tools.appdep.exceptions.InvalidCmdLineToolSettingException;

import com.nokia.s60tools.appdep.plugin.AppDepPlugin;

import com.nokia.s60tools.appdep.resources.Messages;

import com.nokia.s60tools.appdep.ui.dialogs.AddSISFilesDialog;

import com.nokia.s60tools.appdep.ui.dialogs.AppDepMessageBox;

import com.nokia.s60tools.appdep.ui.views.main.MainView;

import com.nokia.s60tools.appdep.util.AppDepConsole;

import com.nokia.s60tools.util.console.IConsolePrintUtility;

public class AddSisAndUpdateCacheMainViewAction extends AbstractMainViewAction {

    public static final String ACTION_ID = "com.nokia.s60tools.appdep.ui.actions.AddSisAndUpdateCacheMainViewAction";  //$NON-NLS-1$

	/**

	 * Constructor.

	 * @param view Reference to the view.

	 */

	public AddSisAndUpdateCacheMainViewAction(MainView view){

		super(view);

		setText("Add SIS files...");  //$NON-NLS-1$

		setToolTipText("Add SIS files");  //$NON-NLS-1$

		setId(ACTION_ID);

		ImageDescriptor imageDesc = PlatformUI.getWorkbench().getSharedImages().getImageDescriptor(ISharedImages.IMG_OBJ_ADD);

		setImageDescriptor(imageDesc);

	}

	/* (non-Javadoc)

	 * @see org.eclipse.jface.action.IAction#run()

	 */

	public void run() {

		String currentRootComponent = null;

		AppDepSettings activeSettings = AppDepSettings.getActiveSettings();

		currentRootComponent =  activeSettings.getCurrentlyAnalyzedComponentName();	

		if(currentRootComponent == null){

			// User has not selected any components for analysis

			String infoMsg = Messages.getString("GeneralMessages.Select_SDK_First_ErrMsg"); //$NON-NLS-1$

			new AppDepMessageBox(infoMsg, SWT.OK | SWT.ICON_INFORMATION).open();

			return;

		}

		String[] previouslyAnalysedSISFiles = null;

		Shell sh = AppDepPlugin.getCurrentlyActiveWbWindowShell();

		AddSISFilesDialog entryDialog = new AddSISFilesDialog(sh);

		entryDialog.create();

		// If already selected some set of SIS files getting the list...

		if(activeSettings.isInSISFileAnalysisMode()){

			//...and setting the initial list

			previouslyAnalysedSISFiles = activeSettings.getSISFilesForAnalysis();

			entryDialog.setInitialSISFileSet(previouslyAnalysedSISFiles);

		}

		int userSelection = entryDialog.open();

		if(userSelection == Window.OK){

			// Getting selected SIS files

			String[] selectedSISFiles = entryDialog.getSelectedSISFiles();

			if(selectedSISFiles.length > 0){

				activeSettings.setSISFilesForAnalysis(selectedSISFiles );

				if( areNewSISFilesProvided(selectedSISFiles, previouslyAnalysedSISFiles)){

					// Entering to SIS file mode...

					activeSettings.setIsInSISFileAnalysisMode(true);

					// ...and setting files to current settings

					addSISTarget(activeSettings);

					//Generate Cache with the modified active settings.

					GenerateCacheJob.triggerCacheGenerationForCurrentlyActiveSettings();

				}

				else{

					String infoMsg = Messages.getString("AddSisAndUpdateCacheMainViewAction.Cache_is_up_to_date_msg");  //$NON-NLS-1$

					new AppDepMessageBox(infoMsg, SWT.OK | SWT.ICON_INFORMATION).open();

				}

			}

			else{

				// Disabling SIS file mode

				activeSettings.setIsInSISFileAnalysisMode(false);

				activeSettings.setSISFilesForAnalysis(null);

			}	

		}

		// Remember to always call AbstractMainViewAction

		// base class implementation

		super.run();

	}

	/** 

	 * The method adds SIS target to the given settings.

	 * @param settings

	 */

	private void addSISTarget(AppDepSettings settings) {

		try{

		// In SIS mode we need to add an extra target

		if(settings.isInSISFileAnalysisMode()){

			ITargetPlatform[] targetPlatforms = settings.getCurrentlyUsedTargetPlatforms();

			ArrayList<String> targetPlatformNames = new ArrayList<String>();

			for(ITargetPlatform platform: targetPlatforms)

				targetPlatformNames.add(platform.getId());

			if(! targetPlatformNames.contains(AppDepSettings.TARGET_TYPE_ID_SIS)){

				settings.addTargetPlatform(AppDepSettings.TARGET_TYPE_ID_SIS);				

			}

		}

		}catch (InvalidCmdLineToolSettingException e) {

			e.printStackTrace();

			AppDepConsole.getInstance().println(Messages.getString("GeneralMessages.Failed_To_Update_Current_Settings"), IConsolePrintUtility.MSG_ERROR); //$NON-NLS-1$

		}

	}

	/**

	 * The method compares list of newly provided sis files with the previous list of analysed files.

	 * The method returns true if some files have been added or removed.

	 */

	private boolean areNewSISFilesProvided(String [] newFiles, String [] previouslyAnalysedFiles)

	{

		if(previouslyAnalysedFiles == null)

			return true;		

		else if (newFiles.length != previouslyAnalysedFiles.length)

			return true;

		else

		{

			List<String> analysedFilesList = Arrays.asList(previouslyAnalysedFiles);

			for(String file:newFiles)

			{

				if(!analysedFilesList.contains(file))

					return true;

			}

			return false;

		}

	}

}