// Copyright (C) 2002-2006 by R. Pito Salas

//

// This program is free software; you can redistribute it and/or modify it under

// the terms of the GNU General Public License as published by the Free Software Foundation;

// either version 2 of the License, or (at your option) any later version.

//

// This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;

// without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

// See the GNU General Public License for more details.

//

// You should have received a copy of the GNU General Public License along with this program;

// if not, write to the Free Software Foundation, Inc., 59 Temple Place,

// Suite 330, Boston, MA 02111-1307 USA

//

// Contact: R. Pito Salas

// mailto:pitosalas@users.sourceforge.net

// More information: about BlogBridge

// http://www.blogbridge.com

// http://sourceforge.net/projects/blogbridge

//

// $Id: GlobalController.java,v 1.389 2008/04/09 04:34:38 spyromus Exp $

//

* Implements all the behaviors of commands in the app. A key design question is whether the

* selection is part of the model or of the controller. I concluded that to have the stickyness of

* selections in channels, and items, it should be part of the model.

*/

    private static final Logger LOG = Logger.getLogger(GlobalController.class.getName());

    private static final String AUTO_GUIDE_TITLE = Strings.message("automatically.created.guide.title");

    /** Key for preference to store selected guide ID between application runs. */

    private static final String KEY_SELECTED_GUIDE_ID = "selectedGuideId";

    /** Key for preference to store selected feed ID between application runs. */

    private static final String KEY_SELECTED_FEED_ID = "selectedFeedId";

    /** Number of last backups to keep in backups directory. */

    private static final int LAST_BACKUPS_TO_KEEP = 10;

    private static final String THREAD_NAME_SEARCH_QUERY = "Run Search Feed Query";

    /**

     * Minimum number of feeds to have saved during previous sync-out to start looking for

     * suspicious decreases.

     */

    static final int CHANGE_CHECK_FEEDS_THRESHOLD = 50;

    /**

     * Number of times the current feeds count should be less than the previous to

     * sound the alarm.

     */

    static final int CHANGE_CHECK_DIFF_TIMES = 3;

    /**

     * Singleton instance.

     */

    public static final GlobalController SINGLETON = new GlobalController();

    private List<IControllerListener>   listeners = new CopyOnWriteArrayList<IControllerListener>();

    private boolean                     initializationFinished = false;

    private GlobalModel                 model;

    private MDManager                   metaDataManager;

    private MDUpdater                   metaDataUpdater;

    // Navigation component.

    private NavigatorAdv                navigator;

    private NavigatorAdapter            navigatorAdapter;

    private ScoresCalculator            scoresCalculator;

    private HighlightsCalculator        highlightsCalculator;

    private PropertyChangeDispatcher    propertyChangeDispatcher;

    private BackgroundProccessManager   backManager;

    private GuideModel                  navigationModel;

    private MainFrame                   mainFrame;

    private SelectedFeedListener        selectedFeedListener;

    private DeletedObjectsRepository deletedObjectsRepository;

    private SearchFeedsManager          searchFeedsManager;

    private DomainEventsListener        domainEventsListener;

    private HighlightsCalculator        searchHighlightsCalculator;

    private String                      currentSearchKeywords;

    /** Tags manager controls the viewing and editing the tags of taggable objects. */

    private TagsSaver                   tagsSaver;

    private WrappingStorage             tagsStorage;

    private Poller                      poller;

    private URL                         hoveredLink;

    private SearchEngine                searchEngine;

    private EventsNotifier              eventNotifier;

    DockIconUnreadMonitor               dockIconUnreadMonitor;

    private FeatureManager              featureManager;

    private GuidesListModel             guidesListModel;

    private PinTagger                   pinTagger;

    private AutoSaver autoSaver;

    /** A link that should be highlighted in an article when found. */

    private String                      highlightedArticleLink;

    /**

     * Constructor of the GlobalController. Note that this is called early in the launch of the

     * application, before any of the UI has been built. Do not call any UI related methods here

     * because they will fail.

     */

    private GlobalController()

    {

        if (LOG.isLoggable(Level.FINE)) LOG.fine("Constructing GlobalController");

        hoveredLink = null;

        AbstractFeed.setFeedVisibilityResolver(new IFeedVisibilityResolver()

        {

            public boolean isVisible(IFeed feed)

            {

                return feed != null &&

                    FeedDisplayModeManager.getInstance().isVisible(feed.getClassesMask());

            }

        });

        featureManager = new FeatureManager(Application.getUserPreferences());

        if (NotificationArea.isSupported())

        {

            eventNotifier = new EventsNotifier();

            eventNotifier.setSoundResourceID("sound.new.articles");

        }

        searchEngine = new SearchEngine();

        backManager = new BackgroundProccessManager();

        pinTagger = new PinTagger(this);

        autoSaver = new AutoSaver();

        if (SystemUtils.IS_OS_MAC) dockIconUnreadMonitor = new DockIconUnreadMonitor();

        selectedFeedListener = new SelectedFeedListener();

        deletedObjectsRepository = new DeletedObjectsRepository(PersistenceManagerConfig.getManager());

        searchHighlightsCalculator = new HighlightsCalculator();

        currentSearchKeywords = "";

        highlightsCalculator = new HighlightsCalculator();

        scoresCalculator = new ScoresCalculator();

        guidesListModel = new GuidesListModel();

        navigationModel = new GuideModel(scoresCalculator, false,

            FeedDisplayModeManager.getInstance());

        navigator = new NavigatorAdv(navigationModel, guidesListModel);

        addControllerListener(navigator);

        navigatorAdapter = new NavigatorAdapter();

        propertyChangeDispatcher = new PropertyChangeDispatcher(this);

        setupTagsSupport();

        setupMetaDataSupport();

        setupPolling();

        // register markers

        addControllerListener(ArticleMarker.getInstance());

        setModel(new GlobalModel(scoresCalculator));

        GlobalModel.setSINGLETON(model);

        // Add sentiments domain listener

        addDomainListener(new DomainListener());

    }

    /**

     * Returns the guides list model.

     *

     * @return model.

     */

    public GuidesListModel getGuidesListModel()

    {

        return guidesListModel;

    }

    /**

     * Returns current feature manager.

     *

     * @return manager.

     */

    public FeatureManager getFeatureManager()

    {

        return featureManager;

    }

    /** Configures and schedules stylesheets updater. */

    private void setupStylesUpdater()

    {

        backManager.schedule(StylesheetManager.getUpdater(), 20, 3600);

    }

    /**

     * Returns current deleted feeds repository instance.

     *

     * @return instance.