/*
 * 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.redirect;

import com.dmdirc.commandparser.BaseCommandInfo;
import com.dmdirc.commandparser.CommandArguments;
import com.dmdirc.commandparser.CommandType;
import com.dmdirc.commandparser.commands.BaseCommand;
import com.dmdirc.commandparser.commands.IntelligentCommand;
import com.dmdirc.commandparser.commands.context.ChatCommandContext;
import com.dmdirc.commandparser.commands.context.CommandContext;
import com.dmdirc.interfaces.Chat;
import com.dmdirc.interfaces.CommandController;
import com.dmdirc.events.eventbus.EventBus;
import com.dmdirc.interfaces.InputModel;
import com.dmdirc.interfaces.WindowModel;
import com.dmdirc.ui.input.AdditionalTabTargets;
import com.dmdirc.ui.input.TabCompleterUtils;
import com.dmdirc.ui.messages.BackBufferFactory;

import javax.annotation.Nonnull;
import javax.inject.Inject;

/**
 * The redirect command allows the user to redirect the output from another command that would
 * normally echo results locally to a query or channel window instead.
 */
public class RedirectCommand extends BaseCommand implements IntelligentCommand {

    /** A command info object for this command. */
    public static final BaseCommandInfo INFO = new BaseCommandInfo("redirect",
            "redirect <command> - sends the output of the command to a "
            + "channel or query window",
            CommandType.TYPE_CHAT);
    /** The bus to dispatch events on. */
    private final EventBus eventBus;
    private final BackBufferFactory backBufferFactory;
    /** Tab-completer utilities. */
    private final TabCompleterUtils tabCompleterUtils;

    /**
     * Creates a new instance of this command.
     */
    @Inject
    public RedirectCommand(
            final CommandController controller,
            final EventBus eventBus,
            final BackBufferFactory backBufferFactory,
            final TabCompleterUtils tabCompleterUtils) {
        super(controller);
        this.eventBus = eventBus;
        this.backBufferFactory = backBufferFactory;
        this.tabCompleterUtils = tabCompleterUtils;
    }

    @Override
    public void execute(@Nonnull final WindowModel origin,
            final CommandArguments args, final CommandContext context) {
        final Chat target = ((ChatCommandContext) context).getChat();
        target.getWindowModel().getInputModel().map(InputModel::getCommandParser).
                ifPresent(cp -> cp.parseCommand(
                        new FakeWriteableFrameContainer(target.getWindowModel(),
                                eventBus, backBufferFactory),
                        args.getArgumentsAsString()));
    }

    @Override
    public AdditionalTabTargets getSuggestions(final int arg,
            final IntelligentCommandContext context) {
        return tabCompleterUtils.getIntelligentResults(arg, context, 0);
    }

}