/*
 * Created on 01-Dec-2003
 *
 * To change the template for this generated file go to
 * Window - Preferences - Java - Code Generation - Code and Comments
 */
package plugin.pretokens.test;

import pcgen.cdom.base.CDOMObject;
import pcgen.core.Globals;
import pcgen.core.PCCheck;
import pcgen.core.PlayerCharacter;
import pcgen.core.prereq.AbstractPrerequisiteTest;
import pcgen.core.prereq.Prerequisite;
import pcgen.core.prereq.PrerequisiteTest;

/**
 * Prerequisite test that the character has a non-zero value for a given check.
 */
public class PreCheckTester extends AbstractPrerequisiteTest implements PrerequisiteTest
{

	/** Constructor. */
	public PreCheckTester()
	{
		super();
	}

	/**
	 * Get the type of prerequisite handled by this token.
	 * @return the type of prerequisite handled by this token.
	 */
    @Override
	public String kindHandled()
	{
		return "CHECK"; //$NON-NLS-1$
	}

	/* (non-Javadoc)
	 * @see pcgen.core.prereq.PrerequisiteTest#passes(pcgen.core.prereq.Prerequisite, pcgen.core.PlayerCharacter)
	 */
	@Override
	public int passes(final Prerequisite prereq, final PlayerCharacter character, CDOMObject source)
	{
		int runningTotal = 0;

		final String checkName = prereq.getKey();
		final int operand = character.getVariableValue(prereq.getOperand(), "").intValue(); //$NON-NLS-1$
		PCCheck check = Globals.getContext().getReferenceContext().silentlyGetConstructedCDOMObject(PCCheck.class, checkName);
		if (check != null)
		{
			final int characterCheckBonus = character.getTotalCheck(check);
			runningTotal = prereq.getOperator().compare(characterCheckBonus, operand) > 0 ? 1 : 0;
		}
		return countedTotal(prereq, runningTotal);
	}

}