package com.earth2me.essentials.protect;

import static com.earth2me.essentials.I18n._;
import com.earth2me.essentials.api.IEssentials;
import com.earth2me.essentials.api.IUser;
import org.bukkit.Material;
import org.bukkit.block.Block;
import org.bukkit.event.block.Action;
import org.bukkit.event.player.PlayerInteractEvent;
import org.bukkit.event.player.PlayerListener;
import org.bukkit.inventory.ItemStack;


public class EssentialsProtectPlayerListener extends PlayerListener
{
	private final transient IProtect prot;
	private final transient IEssentials ess;

	public EssentialsProtectPlayerListener(final IProtect prot)
	{
		this.prot = prot;
		this.ess = prot.getEssentialsConnect().getEssentials();
	}

	@Override
	public void onPlayerInteract(final PlayerInteractEvent event)
	{
		// Do not return if cancelled, because the interact event has 2 cancelled states.
		final IUser user = ess.getUser(event.getPlayer());

		final ProtectHolder settings = prot.getSettings();
		settings.acquireReadLock();
		try
		{
			if (event.hasItem()
				&& (event.getItem().getType() == Material.WATER_BUCKET
					|| event.getItem().getType() == Material.LAVA_BUCKET)
				&& !user.isAuthorized(Permissions.BUILD))
			{
				if (settings.getData().isWarnOnBuildDisallow())
				{
					user.sendMessage(_("buildAlert"));
				}
				event.setCancelled(true);
				return;
			}

			if (!user.isAuthorized(Permissions.INTERACT))
			{
				if (settings.getData().isWarnOnBuildDisallow())
				{
					user.sendMessage(_("buildAlert"));
				}
				event.setCancelled(true);
				return;
			}

			final ItemStack item = event.getItem();
			if (item != null
				&& !user.isAuthorized(ItemUsePermissions.getPermission(item.getType())))
			{
				event.setCancelled(true);
				return;
			}

			if (user.isAuthorized("essentials.protect.ownerinfo") && event.getAction() == Action.RIGHT_CLICK_BLOCK)
			{
				final StringBuilder stringBuilder = new StringBuilder();
				boolean first = true;
				final Block blockClicked = event.getClickedBlock();
				for (String owner : prot.getStorage().getOwners(blockClicked))
				{
					if (!first)
					{
						stringBuilder.append(", ");
					}
					first = false;
					stringBuilder.append(owner);
				}
				final String ownerNames = stringBuilder.toString();
				if (ownerNames != null && !ownerNames.isEmpty())
				{
					user.sendMessage(_("protectionOwner", ownerNames));
				}
			}
			if (item != null
				&& !user.hasPermission("essentials.protect.alerts.notrigger") 
				&&  settings.getData().getAlertOnUse().contains(item.getType()))
			{
				prot.getEssentialsConnect().alert(user, item.getType().toString(), _("alertUsed"));
			}
		}
		finally
		{
			settings.unlock();
		}
	}
}