/*
 * Copyright (c) 2006-2017 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.components;

import com.dmdirc.addons.ui_swing.EdtHandlerInvocation;
import com.dmdirc.addons.ui_swing.UIUtilities;
import com.dmdirc.config.binding.ConfigBinding;
import com.dmdirc.events.FrameClosingEvent;
import com.dmdirc.events.FrameComponentAddedEvent;
import com.dmdirc.events.FrameComponentRemovedEvent;
import com.dmdirc.interfaces.WindowModel;
import com.dmdirc.ui.core.components.WindowComponent;

import javax.swing.JLabel;

import net.engio.mbassy.listener.Handler;

/**
 * Simple panel to show when a user is typing.
 */
public class TypingLabel extends JLabel {

    /** A version number for this class. */
    private static final long serialVersionUID = 2;
    /** Parent frame container. */
    private final WindowModel container;
    /** Whether or not to show the typing indicator. */
    private boolean useTypingIndicator;

    /**
     * Creates a new typing label for the specified container.
     *
     * @param container Parent frame container
     */
    public TypingLabel(final WindowModel container) {
        super("[Typing...]");
        this.container = container;
        setVisible(false);
        container.getEventBus().subscribe(this);
        container.getConfigManager().getBinder().bind(this, TypingLabel.class);
        if (container.getComponents().contains(WindowComponent.TYPING_INDICATOR.getIdentifier())) {
            setVisible(true);
        }
    }

    @ConfigBinding(domain = "ui", key = "typingindicator")
    public void handleTypingIndicator(final String value) {
        useTypingIndicator = Boolean.valueOf(value);
        if (!useTypingIndicator) {
            UIUtilities.invokeLater(() -> setVisible(false));
        }
    }

    @Handler(invocation = EdtHandlerInvocation.class)
    public void componentAdded(final FrameComponentAddedEvent event) {
        if (event.getContainer().equals(container) &&
                WindowComponent.TYPING_INDICATOR.getIdentifier().equals(event.getComponent()) &&
                useTypingIndicator) {
            setVisible(true);
        }
    }

    @Handler(invocation = EdtHandlerInvocation.class)
    public void componentRemoved(final FrameComponentRemovedEvent event) {
        if (event.getContainer().equals(container) &&
                WindowComponent.TYPING_INDICATOR.getIdentifier().equals(event.getComponent()) &&
                useTypingIndicator) {
            setVisible(false);
        }
    }

    @Handler(invocation = EdtHandlerInvocation.class)
    public void windowClosing(final FrameClosingEvent event) {
        if (event.getSource().equals(container)) {
            container.getConfigManager().getBinder().unbind(this);
            container.getEventBus().unsubscribe(this);
        }
    }

}