/**
 * 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.robotics.statements;

import java.util.List;

import net.minecraft.client.renderer.texture.IIconRegister;

import buildcraft.api.robots.DockingStation;
import buildcraft.api.statements.IStatementContainer;
import buildcraft.api.statements.IStatementParameter;
import buildcraft.api.statements.ITriggerInternal;
import buildcraft.core.lib.utils.StringUtils;
import buildcraft.core.statements.BCStatement;
import buildcraft.robotics.EntityRobot;
import buildcraft.robotics.RobotUtils;

public class TriggerRobotInStation extends BCStatement implements ITriggerInternal {

	public TriggerRobotInStation() {
		super("buildcraft:robot.in.station");
	}

	@Override
	public String getDescription() {
		return StringUtils.localize("gate.trigger.robot.in.station");
	}

	@Override
	public void registerIcons(IIconRegister iconRegister) {
		icon = iconRegister.registerIcon("buildcraftrobotics:triggers/trigger_robot_in_station");
	}

	@Override
	public int minParameters() {
		return 0;
	}

	@Override
	public int maxParameters() {
		//return 1;
		// TODO: Discuss whether we actually want to allow parameters here.
		return 0;
	}

	@Override
	public IStatementParameter createParameter(int index) {
		return new StatementParameterRobot();
	}

	@Override
	public boolean isTriggerActive(IStatementContainer container, IStatementParameter[] parameters) {
		List<DockingStation> stations = RobotUtils.getStations(container.getTile());

		for (DockingStation station : stations) {
			if (station.robotTaking() != null) {
				EntityRobot robot = (EntityRobot) station.robotTaking();

				if (robot.getDockingStation() == station) {
					if (parameters.length > 0 && parameters[0] != null && parameters[0].getItemStack() != null) {
						if (StatementParameterRobot.matches(parameters[0], robot)) {
							return true;
						}
					} else {
						return true;
					}
				}
			}
		}

		return false;
	}
}