DMDirc-Client/src/com/dmdirc/commandparser/commands/channel/ShowTopic.java

/*
 * Copyright (c) 2006-2009 Chris Smith, Shane Mc Cormack, Gregory Holmes
 *
 * 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.commandparser.commands.channel;

import com.dmdirc.Channel;
import com.dmdirc.Server;
import com.dmdirc.commandparser.CommandArguments;
import com.dmdirc.commandparser.commands.ChannelCommand;
import com.dmdirc.commandparser.CommandManager;
import com.dmdirc.commandparser.commands.ExternalCommand;
import com.dmdirc.parser.irc.IRCChannelInfo;
import com.dmdirc.parser.irc.IRCClientInfo;
import com.dmdirc.ui.interfaces.InputWindow;

/**
 * The show topic command shows the user the current topic.
 * @author chris
 */
public final class ShowTopic extends ChannelCommand implements ExternalCommand {

    /** Creates a new instance of ShowTopic. */
    public ShowTopic() {
        super();

        CommandManager.registerCommand(this);
    }

    /** {@inheritDoc} */
    @Override
    public void execute(final InputWindow origin, final Server server,
            final Channel channel, final boolean isSilent, final CommandArguments args) {
        if (args.getArguments().length == 0) {
            final IRCChannelInfo cChannel = channel.getChannelInfo();

            if (cChannel.getTopic().isEmpty()) {
                sendLine(origin, isSilent, "channelNoTopic", cChannel);
            } else {
                final String[] parts = IRCClientInfo.parseHostFull(cChannel.getTopicUser());

                sendLine(origin, isSilent, "channelTopicDiscovered",
                        "", parts[0], parts[1], parts[2], cChannel.getTopic(),
                        1000 * cChannel.getTopicTime(), cChannel);
            }
        } else {
            channel.setTopic(args.getArgumentsAsString());
        }
    }

    /** {@inheritDoc} */
    @Override
    public void execute(final InputWindow origin, final Server server,
            final String channel, final boolean isSilent, final CommandArguments args) {
        if (args.getArguments().length == 0) {
            server.getParser().sendLine("TOPIC " + channel);
        } else {
            server.getParser().sendLine("TOPIC " + channel + " :" + args.getArgumentsAsString());
        }
    }

    /** {@inheritDoc} */
    @Override
    public String getName() {
        return "topic";
    }

    /** {@inheritDoc} */
    @Override
    public boolean showInHelp() {
        return true;
    }

    /** {@inheritDoc} */
    @Override
    public String getHelp() {
        return "topic - displays the current topic\ntopic <newtopic> - sets the channel topic";
    }

}