/*
 * 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.parserdebug;

import com.dmdirc.FrameContainer;
import com.dmdirc.events.CommandOutputEvent;
import com.dmdirc.interfaces.Connection;
import com.dmdirc.events.eventbus.EventBus;
import com.dmdirc.parser.interfaces.Parser;
import com.dmdirc.ui.core.components.WindowComponent;
import com.dmdirc.ui.messages.BackBufferFactory;

import java.util.Arrays;
import java.util.Optional;

/**
 * This class is used to show the parser debug in a window
 */
public class DebugWindow extends FrameContainer {

    /** The debug listener for this window. */
    protected final Object listener;
    /** The parser this window is debugging. */
    protected Parser parser;
    /** The connection we're operating on. */
    protected final Connection connection;

    /**
     * Creates a new instance of DebugWindow.
     */
    public DebugWindow(
            // TODO: Icky.
            final Object listener,
            final String title,
            final Parser parser,
            final Connection connection,
            final EventBus eventBus,
            final BackBufferFactory backBufferFactory) {
        super("raw", "Parser Debug", title,
                connection.getWindowModel().getConfigManager(), backBufferFactory,
                eventBus, Arrays.asList(WindowComponent.TEXTAREA.getIdentifier()));
        this.listener = listener;
        this.parser = parser;
        this.connection = connection;
        initBackBuffer();
    }

    @Override
    public Optional<Connection> getConnection() {
        return Optional.of(connection);
    }

    /**
     * Set the parser to null to stop us holding onto parsers when the server connection is closed.
     */
    public void unsetParser() {
        getEventBus().publishAsync(new CommandOutputEvent(this,
                "======================\n" +
                "Unset parser: " + parser));
        parser = null;
    }

    /**
     * Closes this container (and its associated frame).
     */
    @Override
    public void close() {
        super.close();

        // Remove any callbacks or listeners
        if (parser != null) {
            parser.getCallbackManager().unsubscribe(listener);
        }
    }

}