/**
 * Copyright (c) 2011-2015, SpaceToad and the BuildCraft Team
 * http://www.mod-buildcraft.com
 * <p/>
 * BuildCraft is distributed under the terms of the Minecraft Mod Public
 * License 1.0, or MMPL. Please check the contents of the license located in
 * http://www.mod-buildcraft.com/MMPL-1.0.txt
 */
package buildcraft.builders.schematics;

import net.minecraft.entity.Entity;
import net.minecraft.entity.item.EntityMinecart;
import net.minecraft.item.Item;
import net.minecraft.item.ItemStack;
import net.minecraft.nbt.NBTTagList;

import buildcraft.api.blueprints.IBuilderContext;
import buildcraft.api.blueprints.SchematicEntity;
import buildcraft.api.blueprints.Translation;
import buildcraft.api.core.Position;

public class SchematicMinecart extends SchematicEntity {

	private Item baseItem;

	public SchematicMinecart(Item baseItem) {
		this.baseItem = baseItem;
	}

	@Override
	public void translateToBlueprint(Translation transform) {
		super.translateToBlueprint(transform);

		NBTTagList nbttaglist = entityNBT.getTagList("Pos", 6);
		Position pos = new Position(nbttaglist.func_150309_d(0),
				nbttaglist.func_150309_d(1), nbttaglist.func_150309_d(2));
		pos.x -= 0.5;
		pos.z -= 0.5;
		entityNBT.setTag("Pos", this.newDoubleNBTList(pos.x, pos.y, pos.z));
	}


	@Override
	public void translateToWorld(Translation transform) {
		super.translateToWorld(transform);

		NBTTagList nbttaglist = entityNBT.getTagList("Pos", 6);
		Position pos = new Position(nbttaglist.func_150309_d(0),
				nbttaglist.func_150309_d(1), nbttaglist.func_150309_d(2));
		pos.x += 0.5;
		pos.z += 0.5;
		entityNBT.setTag("Pos", this.newDoubleNBTList(pos.x, pos.y, pos.z));
	}

	@Override
	public void readFromWorld(IBuilderContext context, Entity entity) {
		super.readFromWorld(context, entity);

		storedRequirements = new ItemStack[1];
		storedRequirements[0] = new ItemStack(baseItem);
	}

	@Override
	public boolean isAlreadyBuilt(IBuilderContext context) {
		NBTTagList nbttaglist = entityNBT.getTagList("Pos", 6);
		Position newPosition = new Position(nbttaglist.func_150309_d(0),
				nbttaglist.func_150309_d(1), nbttaglist.func_150309_d(2));

		for (Object o : context.world().loadedEntityList) {
			Entity e = (Entity) o;

			Position existingPositon = new Position(e.posX, e.posY, e.posZ);

			if (e instanceof EntityMinecart) {
				if (existingPositon.isClose(newPosition, 0.1F)) {
					return true;
				}
			}
		}

		return false;
	}

}