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package com.earth2me.essentials.signs;

import com.earth2me.essentials.*;
import static com.earth2me.essentials.I18n.tl;
import java.util.Locale;
import net.ess3.api.IEssentials;
import org.bukkit.enchantments.Enchantment;
import org.bukkit.inventory.ItemStack;


public class SignEnchant extends EssentialsSign
{
	public SignEnchant()
	{
		super("Enchant");
	}

	@Override
	protected boolean onSignCreate(final ISign sign, final User player, final String username, final IEssentials ess) throws SignException, ChargeException
	{
		final ItemStack stack;
		try
		{
			stack = sign.getLine(1).equals("*") || sign.getLine(1).equalsIgnoreCase("any") ? null : getItemStack(sign.getLine(1), 1, ess);
		}
		catch (SignException e)
		{
			sign.setLine(1, "§c<item|any>");
			throw e;
		}
		final String[] enchantLevel = sign.getLine(2).split(":");
		if (enchantLevel.length != 2)
		{
			sign.setLine(2, "§c<enchant>");
			throw new SignException(tl("invalidSignLine", 3));
		}
		final Enchantment enchantment = Enchantments.getByName(enchantLevel[0]);
		if (enchantment == null)
		{
			sign.setLine(2, "§c<enchant>");
			throw new SignException(tl("enchantmentNotFound"));
		}
		int level;
		try
		{
			level = Integer.parseInt(enchantLevel[1]);
		}
		catch (NumberFormatException ex)
		{
			sign.setLine(2, "§c<enchant>");
			throw new SignException(ex.getMessage(), ex);
		}
		final boolean allowUnsafe = ess.getSettings().allowUnsafeEnchantments() 
									&& player.isAuthorized("essentials.enchantments.allowunsafe") && player.isAuthorized("essentials.signs.enchant.allowunsafe");
		if (level < 0 || (!allowUnsafe && level > enchantment.getMaxLevel()))
		{
			level = enchantment.getMaxLevel();
			sign.setLine(2, enchantLevel[0] + ":" + level);
		}
		try
		{
			if (stack != null)
			{
				if (allowUnsafe)
				{
					stack.addUnsafeEnchantment(enchantment, level);
				}
				else
				{
					stack.addEnchantment(enchantment, level);
				}
			}
		}
		catch (Throwable ex)
		{
			throw new SignException(ex.getMessage(), ex);
		}
		getTrade(sign, 3, ess);
		return true;
	}

	@Override
	protected boolean onSignInteract(ISign sign, User player, String username, IEssentials ess) throws SignException, ChargeException
	{
		final ItemStack search = sign.getLine(1).equals("*") || sign.getLine(1).equalsIgnoreCase("any") ? null : getItemStack(sign.getLine(1), 1, ess);
		int slot = -1;
		final Trade charge = getTrade(sign, 3, ess);
		charge.isAffordableFor(player);
		final String[] enchantLevel = sign.getLine(2).split(":");
		if (enchantLevel.length != 2)
		{
			throw new SignException(tl("invalidSignLine", 3));
		}
		final Enchantment enchantment = Enchantments.getByName(enchantLevel[0]);
		if (enchantment == null)
		{
			throw new SignException(tl("enchantmentNotFound"));
		}
		int level;
		try
		{
			level = Integer.parseInt(enchantLevel[1]);
		}
		catch (NumberFormatException ex)
		{
			level = enchantment.getMaxLevel();
		}

		final ItemStack playerHand = player.getItemInHand();
		if (playerHand == null
			|| playerHand.getAmount() != 1
			|| (playerHand.containsEnchantment(enchantment)
				&& playerHand.getEnchantmentLevel(enchantment) == level))
		{
			throw new SignException(tl("missingItems", 1, sign.getLine(1)));
		}
		if (search != null && playerHand.getType() != search.getType())
		{
			throw new SignException(tl("missingItems", 1, search.getType().toString().toLowerCase(Locale.ENGLISH).replace('_', ' ')));
		}

		final ItemStack toEnchant = playerHand;
		try
		{
			if (level == 0)
			{
				toEnchant.removeEnchantment(enchantment);
			}
			else
			{
				if (ess.getSettings().allowUnsafeEnchantments() && player.isAuthorized("essentials.signs.enchant.allowunsafe"))
				{
					toEnchant.addUnsafeEnchantment(enchantment, level);
				}
				else
				{
					toEnchant.addEnchantment(enchantment, level);
				}
			}
		}
		catch (Exception ex)
		{
			throw new SignException(ex.getMessage(), ex);
		}

		final String enchantmentName = enchantment.getName().toLowerCase(Locale.ENGLISH);
		if (level == 0)
		{
			player.sendMessage(tl("enchantmentRemoved", enchantmentName.replace('_', ' ')));
		}
		else
		{
			player.sendMessage(tl("enchantmentApplied", enchantmentName.replace('_', ' ')));
		}

		charge.charge(player);
		Trade.log("Sign", "Enchant", "Interact", username, charge, username, charge, sign.getBlock().getLocation(), ess);
		player.updateInventory();
		return true;
	}
}