/*
 * Copyright (C) 2014 cnaude
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package com.cnaude.purpleirc;

import com.cnaude.purpleirc.Events.IRCCommandEvent;
import java.util.Queue;
import java.util.concurrent.ConcurrentLinkedQueue;
import org.bukkit.command.CommandException;

/**
 *
 * @author Chris Naude Poll the command queue and dispatch to Bukkit
 */
public class CommandQueueWatcher {

    private final PurpleIRC plugin;
    private int bt;
    private final Queue<IRCCommand> queue = new ConcurrentLinkedQueue<>();

    /**
     *
     * @param plugin the PurpleIRC plugin
     */
    public CommandQueueWatcher(final PurpleIRC plugin) {
        this.plugin = plugin;
        startWatcher();
    }

    private void startWatcher() {
        plugin.logDebug("Starting command queue");
        bt = this.plugin.getServer().getScheduler().scheduleSyncRepeatingTask(this.plugin, this::queueAndSend, 0, 5);
    }

    private void queueAndSend() {
        IRCCommand ircCommand = queue.poll();
        if (ircCommand != null) {
            try {
                String cmd = ircCommand.getGameCommand().split(" ")[0];

                plugin.logDebug("CMD: " + cmd);
                /*
                boolean isCommandBookCommand = false;
                if (plugin.commandBookHook != null) {
                    isCommandBookCommand = plugin.commandBookHook.isCommandBookCommand(cmd);
                    plugin.logDebug("Is this is a CommandBook command? " + Boolean.toString(isCommandBookCommand));
                }
                 */

                try {
                    plugin.logDebug("Dispatching command as IRCCommandSender: " + ircCommand.getGameCommand());
                    plugin.getServer().dispatchCommand(ircCommand.getIRCCommandSender(), ircCommand.getGameCommand());
                } catch (CommandException ex) {
                    plugin.logDebug("Falling back to ConsoleSender: " + ircCommand.getGameCommand());

                    plugin.getServer().dispatchCommand(ircCommand.getIRCConsoleCommandSender(), ircCommand.getGameCommand());
                    ircCommand.getIRCConsoleCommandSender().sendMessage(plugin.tokenizer.ircCommandSentTokenizer(ircCommand.getGameCommand()));
                }

                /*
                if ((plugin.getServer().getVersion().contains("MC: 1.8")
                        && (plugin.getServer().getVersion().contains("Spigot"))
                        && plugin.getServer().getPluginCommand(cmd) == null
                        && !isCommandBookCommand)
                        || (plugin.getServer().getVersion().contains("MC: 1.9")
                        && plugin.getServer().getPluginCommand(cmd) == null
                        && !isCommandBookCommand)
                        || (plugin.getServer().getVersion().contains("MC: 1.10")
                        && plugin.getServer().getPluginCommand(cmd) == null
                        && !isCommandBookCommand)
                        || (plugin.getServer().getVersion().contains("MC: 1.11")
                        && plugin.getServer().getPluginCommand(cmd) == null
                        && !isCommandBookCommand)) {
                    plugin.logDebug("Dispatching command as ConsoleSender: " + ircCommand.getGameCommand());

                    plugin.getServer().dispatchCommand(ircCommand.getIRCConsoleCommandSender(), ircCommand.getGameCommand());
                    ircCommand.getIRCConsoleCommandSender().sendMessage(plugin.tokenizer.ircCommandSentTokenizer(ircCommand.getGameCommand()));
                } else {
                    plugin.logDebug("Dispatching command as IRCCommandSender: " + ircCommand.getGameCommand());
                    plugin.getServer().dispatchCommand(ircCommand.getIRCCommandSender(), ircCommand.getGameCommand());
                } 
                 */
            } catch (CommandException ce) {
                plugin.logError("Error running command: " + ce.getMessage());
            }
            IRCCommandEvent event = new IRCCommandEvent(ircCommand);
            plugin.getServer().getPluginManager().callEvent(event);
        }
    }

    public void cancel() {
        this.plugin.getServer().getScheduler().cancelTask(bt);
    }

    public String clearQueue() {
        int size = queue.size();
        if (!queue.isEmpty()) {
            queue.clear();
        }
        return "Elements removed from command queue: " + size;
    }

    /**
     * Add an IRCCommand to the command queue
     *
     * @param command the IRC command to add to the queue
     */
    public void add(IRCCommand command) {
        plugin.logDebug("Adding command to queue: " + command.getGameCommand());
        queue.offer(command);
    }
}