/*
 * Copyright (c) 2006-2015 DMDirc Developers
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

package com.dmdirc.addons.ui_swing.dialogs.channelsetting;

import com.dmdirc.Channel;
import com.dmdirc.DMDircMBassador;
import com.dmdirc.addons.ui_swing.UIUtilities;
import com.dmdirc.interfaces.CommandController;
import com.dmdirc.interfaces.ui.InputWindow;
import com.dmdirc.plugins.ServiceManager;
import com.dmdirc.ui.IconManager;
import com.dmdirc.ui.input.TabCompleterUtils;
import com.dmdirc.ui.messages.ColourManagerFactory;

import java.awt.datatransfer.Clipboard;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.Optional;

import javax.swing.JPanel;

import net.miginfocom.swing.MigLayout;

/** Topic panel. */
public class TopicPane extends JPanel implements ActionListener {

    /** A version number for this class. */
    private static final long serialVersionUID = 2;
    /** Parent channel. */
    private final Channel channel;
    /** Channel window. */
    private final InputWindow channelWindow;
    /** Parent dialog. */
    private final ChannelSettingsDialog parent;
    /** Clipboard to copy and paste with. */
    private final Clipboard clipboard;
    /** Topic history panel. */
    private TopicHistoryPane topicHistoryPane;
    /** Topic display pane. */
    private TopicDisplayPane topicDisplayPane;

    /**
     * Creates a new instance of TopicModesPane.
     *
     * @param channel           Parent channel
     * @param iconManager       Icon manager
     * @param commandController The controller to use to retrieve command information.
     * @param serviceManager    Service manager
     * @param parent            Parent dialog
     * @param channelWindow     Channel window
     * @param clipboard         Clipboard to copy and paste with
     * @param eventBus          The event bus to post errors to
     */
    public TopicPane(final Channel channel, final IconManager iconManager,
            final CommandController commandController,
            final ServiceManager serviceManager, final ChannelSettingsDialog parent,
            final InputWindow channelWindow, final Clipboard clipboard,
            final DMDircMBassador eventBus,
            final ColourManagerFactory colourManagerFactory,
            final TabCompleterUtils tabCompleterUtils) {
        setOpaque(UIUtilities.getTabbedPaneOpaque());
        this.channel = channel;
        this.parent = parent;
        this.channelWindow = channelWindow;
        this.clipboard = clipboard;

        setVisible(false);

        removeAll();
        initTopicsPanel(iconManager, serviceManager, commandController, eventBus,
                colourManagerFactory, tabCompleterUtils);
        layoutComponents();

        topicHistoryPane.addActionListener(this);

        setVisible(true);
    }

    private void initTopicsPanel(
            final IconManager iconManager,
            final ServiceManager serviceManager,
            final CommandController commandController,
            final DMDircMBassador eventBus,
            final ColourManagerFactory colourManagerFactory,
            final TabCompleterUtils tabCompleterUtils) {
        topicDisplayPane = new TopicDisplayPane(channel, iconManager, serviceManager, parent,
                channelWindow, clipboard, commandController, eventBus, colourManagerFactory,
                tabCompleterUtils);
        topicHistoryPane = new TopicHistoryPane(channel);
    }

    /** Lays out the components. */
    private void layoutComponents() {
        setLayout(new MigLayout("wrap 1, fill, wmax 450"));

        add(topicDisplayPane, "grow, push");
        add(topicHistoryPane, "grow, pushy");
    }

    /** Processes the topic and changes it if necessary. */
    protected void setChangedTopic() {
        final String topic = topicDisplayPane.getTopic();
        if (!channel.getChannelInfo().getTopic().equals(topic)) {
            channel.setTopic(topic);
        }
    }

    /**
     * {@inheritDoc}.
     *
     * @param e Action event
     */
    @Override
    public void actionPerformed(final ActionEvent e) {
        if (e != null && e.getSource() == topicHistoryPane) {
            topicDisplayPane.setTopic(Optional.ofNullable(topicHistoryPane.getSelectedTopic()));
        }
    }

}
