package org.bukkit.event.block;

import org.bukkit.block.Block;
import org.bukkit.block.BlockState;
import org.bukkit.entity.Player;
import org.bukkit.event.Cancellable;
import org.bukkit.event.HandlerList;
import org.bukkit.inventory.ItemStack;

/**
 * Called when a block is placed by a player.
 * <p>
 * If a Block Place event is cancelled, the block will not be placed.
 */
public class BlockPlaceEvent extends BlockEvent implements Cancellable
{
	private static final HandlerList handlers = new HandlerList();
	protected boolean cancel;
	protected boolean canBuild;
	protected Block placedAgainst;
	protected BlockState replacedBlockState;
	protected ItemStack itemInHand;
	protected Player player;

	public BlockPlaceEvent(final Block placedBlock, final BlockState replacedBlockState, final Block placedAgainst, final ItemStack itemInHand, final Player thePlayer, final boolean canBuild)
	{
		super(placedBlock);
		this.placedAgainst = placedAgainst;
		this.itemInHand = itemInHand;
		this.player = thePlayer;
		this.replacedBlockState = replacedBlockState;
		this.canBuild = canBuild;
		cancel = false;
	}

	public boolean isCancelled()
	{
		return cancel;
	}

	public void setCancelled(boolean cancel)
	{
		this.cancel = cancel;
	}

	/**
	 * Gets the player who placed the block involved in this event.
	 *
	 * @return The Player who placed the block involved in this event
	 */
	public Player getPlayer()
	{
		return player;
	}

	/**
	 * Clarity method for getting the placed block. Not really needed except
	 * for reasons of clarity.
	 *
	 * @return The Block that was placed
	 */
	public Block getBlockPlaced()
	{
		return getBlock();
	}

	/**
	 * Gets the BlockState for the block which was replaced. Material type air
	 * mostly.
	 *
	 * @return The BlockState for the block which was replaced.
	 */
	public BlockState getBlockReplacedState()
	{
		return this.replacedBlockState;
	}

	/**
	 * Gets the block that this block was placed against
	 *
	 * @return Block the block that the new block was placed against
	 */
	public Block getBlockAgainst()
	{
		return placedAgainst;
	}

	/**
	 * Gets the item in the player's hand when they placed the block.
	 *
	 * @return The ItemStack for the item in the player's hand when they
	 * placed the block
	 */
	public ItemStack getItemInHand()
	{
		return itemInHand;
	}

	/**
	 * Gets the value whether the player would be allowed to build here.
	 * Defaults to spawn if the server was going to stop them (such as, the
	 * player is in Spawn). Note that this is an entirely different check
	 * than BLOCK_CANBUILD, as this refers to a player, not universe-physics
	 * rule like cactus on dirt.
	 *
	 * @return boolean whether the server would allow a player to build here
	 */
	public boolean canBuild()
	{
		return this.canBuild;
	}

	/**
	 * Sets the canBuild state of this event. Set to true if you want the
	 * player to be able to build.
	 *
	 * @param canBuild true if you want the player to be able to build
	 */
	public void setBuild(boolean canBuild)
	{
		this.canBuild = canBuild;
	}

	@Override
	public HandlerList getHandlers()
	{
		return handlers;
	}

	public static HandlerList getHandlerList()
	{
		return handlers;
	}
}