/**
 * Copyright (C) 2018 Christian Pierre MOMON <cmomon@april.org>
 *
 * This file is part of (April) Ememem.
 *
 * Ememem is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Ememem is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with Ememem.  If not, see <http://www.gnu.org/licenses/>
 */
package org.april.hebdobot.bot.hooks;

import java.util.regex.Matcher;
import java.util.regex.Pattern;

import org.apache.commons.lang3.StringUtils;
import org.april.hebdobot.bot.Hebdobot;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * The Class HelpByCommandHook.
 */
public class HelpByCommandHook extends Hook
{
    private static final Logger logger = LoggerFactory.getLogger(HelpByCommandHook.class);

    private static final Pattern PATTERN = Pattern.compile("^!help\\s+(\\S+)$");

    /* (non-Javadoc)
     * @see org.april.hebdobot.bot.hooks.Hook#attemptProcess(org.april.hebdobot.bot.Hebdobot, java.lang.String, java.lang.String, java.lang.String, java.lang.String, java.lang.String)
     */
    @Override
    public boolean attemptProcess(final Hebdobot bot, final String channel, final String sender, final String login, final String hostname,
            final String message)
    {
        boolean result;

        Matcher matcher = PATTERN.matcher(message);

        if (matcher.find())
        {
            String command = matcher.group(1);

            if (StringUtils.equals(command, "help"))
            {
                bot.sendMessage(sender + ": help                                display help commands");
                bot.sendMessage(sender + ": help command                        display help on specific command");
            }
            else if (StringUtils.equals(command, "ignore"))
            {
                bot.sendMessage(sender + ": ignore host:service                 ignore a specific probe");
                bot.sendMessage(sender + ": ignore                              list ignore probes");
            }
            else if (StringUtils.equals(command, "unignore"))
            {
                bot.sendMessage(sender + ": unignore host:service               ignore a specific probe");
            }
            else if (StringUtils.equals(command, "ack"))
            {
                bot.sendMessage(sender + ": ack                                 unack an alert");
            }
            else if (StringUtils.equals(command, "unack"))
            {
                bot.sendMessage(sender + ": unack                               unack an alert");
            }
            else if (StringUtils.equalsAnyIgnoreCase(command, "!mute", "!tagueule", "!ta gueule", "!chut", "!sieste"))
            {
                bot.sendMessage(sender + ": mute|tagueule|chut|sieste           mute alert display");
            }
            else if (StringUtils.equalsAnyIgnoreCase(command, "!unmute"))
            {
                bot.sendMessage(sender + ": unmute                              mute alert display");
            }
            else if (StringUtils.equals(command, "list"))
            {
                bot.sendMessage(sender + ": list                                display current alerts");
            }
            else if (StringUtils.equals(command, "refresh"))
            {
                bot.sendMessage(sender + ": refresh                             update alert list");
            }
            else if (StringUtils.equals(command, "recheck"))
            {
                bot.sendMessage(sender + ": recheck                             reschedule current alerts");
            }
            else
            {
                bot.sendMessage(sender + ": no help available for this command");
            }

            result = true;
        }
        else
        {
            result = false;
        }

        //
        return result;
    }
}