package org.bukkit.command.defaults;

import com.google.common.collect.ImmutableList;
import org.apache.commons.lang.Validate;
import org.bukkit.Bukkit;
import org.bukkit.ChatColor;
import org.bukkit.World;
import org.bukkit.command.Command;
import org.bukkit.command.CommandSender;
import org.bukkit.entity.Player;

import java.util.List;

public class ToggleDownfallCommand extends VanillaCommand
{
	public ToggleDownfallCommand()
	{
		super("toggledownfall");
		this.description = "Toggles rain on/off on a given world";
		this.usageMessage = "/toggledownfall";
		this.setPermission("bukkit.command.toggledownfall");
	}

	@Override
	public boolean execute(CommandSender sender, String currentAlias, String[] args)
	{
		if(!testPermission(sender)) return true;

		World world = null;

		if(args.length == 1)
		{
			world = Bukkit.getWorld(args[0]);

			if(world == null)
			{
				sender.sendMessage(ChatColor.RED + "No world exists with the name '" + args[0] + "'");
				return true;
			}
		}
		else if(sender instanceof Player)
		{
			world = ((Player) sender).getWorld();
		}
		else
		{
			world = Bukkit.getWorlds().get(0);
		}

		Command.broadcastCommandMessage(sender, "Toggling downfall " + (world.hasStorm() ? "off" : "on") + " for world '" + world.getName() + "'");
		world.setStorm(!world.hasStorm());

		return true;
	}

	@Override
	public List<String> tabComplete(CommandSender sender, String alias, String[] args) throws IllegalArgumentException
	{
		Validate.notNull(sender, "Sender cannot be null");
		Validate.notNull(args, "Arguments cannot be null");
		Validate.notNull(alias, "Alias cannot be null");

		return ImmutableList.of();
	}
}