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/**
 * DataCleaner (community edition)
 * Copyright (C) 2014 Neopost - Customer Information Management
 *
 * This copyrighted material is made available to anyone wishing to use, modify,
 * copy, or redistribute it subject to the terms and conditions of the GNU
 * Lesser General Public License, as published by the Free Software Foundation.
 *
 * 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 Lesser General Public License
 * for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this distribution; if not, write to:
 * Free Software Foundation, Inc.
 * 51 Franklin Street, Fifth Floor
 * Boston, MA  02110-1301  USA
 */
package org.datacleaner.widgets;

import java.awt.Cursor;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.util.Date;
import java.util.List;

import javax.swing.JLabel;

import org.datacleaner.Version;
import org.datacleaner.api.ShortNews;
import org.datacleaner.descriptors.RemoteDescriptorProvider;
import org.datacleaner.panels.NewsChannelPanel;
import org.datacleaner.panels.RightInformationPanel;
import org.datacleaner.restclient.NewsChannelRESTClient;
import org.datacleaner.user.UserPreferences;
import org.datacleaner.util.IconUtils;
import org.datacleaner.util.ImageManager;
import org.datacleaner.util.WidgetUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * Status Label News Channel for DataCloud
 */
public class NewsChannelStatusLabel extends JLabel {
    private static final Logger logger = LoggerFactory.getLogger(NewsChannelStatusLabel.class);
    private static final long serialVersionUID = 1L;
    private static final String PANEL_NAME = "News Channel";
    private static final String LAST_NEWS_READING = "lastNewsReading";
    private final NewsChannelPanel _newNewsChannelPanel;
    private final RightInformationPanel _rightPanel;
    private final UserPreferences _userPreferences;

    public NewsChannelStatusLabel(final RightInformationPanel rightPanel, final UserPreferences userPreferences) {
        super(PANEL_NAME);
        _userPreferences = userPreferences;
        _rightPanel = rightPanel;
        setForeground(WidgetUtils.BG_COLOR_BRIGHTEST);
        final List newsitems = getNews();

        final String lastNewsCheckValue = userPreferences.getAdditionalProperties().get(LAST_NEWS_READING);
        long lastNewsCheck = 0;
        if (lastNewsCheckValue != null) {
            lastNewsCheck = Long.valueOf(lastNewsCheckValue);
        }
        _newNewsChannelPanel = new NewsChannelPanel(newsitems, lastNewsCheck);
        _rightPanel.addTabToPane(PANEL_NAME, _newNewsChannelPanel);

        if (newsitems != null) {
            if (newsitems.size() > 0) {
                if (lastNewsCheckValue == null || newsitems.get(0).getDateCreated().getTime() > lastNewsCheck) {
                    setIcon(ImageManager.get().getImageIcon(IconUtils.NEWS_CHANNEL_NOT_READ_STATUS));
                } else {
                    setIcon(ImageManager.get().getImageIcon(IconUtils.NEWS_CHANNEL_READ_STATUS));
                }
            } else {
                setIcon(ImageManager.get().getImageIcon(IconUtils.NEWS_CHANNEL_READ_STATUS));
            }
        } else {
            setIcon(ImageManager.get().getImageIcon(IconUtils.NEWS_CHANNEL_READ_STATUS));
        }
        setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));

        addMouseListener(new MouseAdapter() {
            @Override
            public void mouseClicked(final MouseEvent e) {
                if (newsitems == null) {
                    onMouseClick(0);
                } else {
                    onMouseClick(newsitems.size());
                }
            }
        });
    }

    protected void onMouseClick(final int size) {
        final String lastReading = _userPreferences.getAdditionalProperties().get(LAST_NEWS_READING);
        if (lastReading != null) {
            _newNewsChannelPanel.refresh(Long.valueOf(lastReading));
        }
        if (!_rightPanel.getOpenedCard().equals(PANEL_NAME)) {
            setIcon(ImageManager.get().getImageIcon(IconUtils.NEWS_CHANNEL_READ_STATUS, IconUtils.ICON_SIZE_SMALL));
            if (size > 0) {
                _userPreferences.getAdditionalProperties().put(LAST_NEWS_READING, String.valueOf(new Date().getTime()));
                _userPreferences.save();
            }
        }
        _newNewsChannelPanel.scrollToTop();
        _rightPanel.toggleWindow(PANEL_NAME);
    }

    private List getNews() {
        try {
            final NewsChannelRESTClient client =
                    new NewsChannelRESTClient(RemoteDescriptorProvider.DATACLOUD_NEWS_CHANNEL_URL,
                            Version.getVersion());
            return client.getNews(3);
        } catch (final Exception e) {
            logger.error("Connection problem to the website service.", e.getMessage());
            return null;
        }
    }
}