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.Location;
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 SpawnpointCommand extends VanillaCommand
{

	public SpawnpointCommand()
	{
		super("spawnpoint");
		this.description = "Sets a player's spawn point";
		this.usageMessage = "/spawnpoint OR /spawnpoint <player> OR /spawnpoint <player> <x> <y> <z>";
		this.setPermission("bukkit.command.spawnpoint");
	}

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

		Player player;

		if(args.length == 0)
		{
			if(sender instanceof Player)
			{
				player = (Player) sender;
			}
			else
			{
				sender.sendMessage("Please provide a player!");
				return true;
			}
		}
		else
		{
			player = Bukkit.getPlayerExact(args[0]);
			if(player == null)
			{
				sender.sendMessage("Can't find player " + args[0]);
				return true;
			}
		}

		World world = player.getWorld();

		if(args.length == 4)
		{
			if(world != null)
			{
				int pos = 1;
				final int x, y, z;
				try
				{
					x = getInteger(sender, args[pos++], MIN_COORD, MAX_COORD, true);
					y = getInteger(sender, args[pos++], 0, world.getMaxHeight());
					z = getInteger(sender, args[pos], MIN_COORD, MAX_COORD, true);
				} catch(NumberFormatException ex)
				{
					sender.sendMessage(ex.getMessage());
					return true;
				}

				player.setBedSpawnLocation(new Location(world, x, y, z), true);
				Command.broadcastCommandMessage(sender, "Set " + player.getDisplayName() + "'s spawnpoint to " + x + ", " + y + ", " + z);
			}
		}
		else if(args.length <= 1)
		{
			Location location = player.getLocation();
			player.setBedSpawnLocation(location, true);
			Command.broadcastCommandMessage(sender, "Set " + player.getDisplayName() + "'s spawnpoint to " + location.getX() + ", " + location.getY() + ", " + location.getZ());
		}
		else
		{
			sender.sendMessage(ChatColor.RED + "Usage: " + usageMessage);
			return false;
		}

		return true;
	}

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

		if(args.length == 1)
		{
			return super.tabComplete(sender, alias, args);
		}

		return ImmutableList.of();
	}
}