/*
 * Copyright (c) 2017, Andreas Fagschlunger. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 *   - Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *
 *   - Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in the
 *     documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

package at.o2xfs.emv;

public class ProcessingState {

	private final int sw;

	public ProcessingState(int sw) {
		this.sw = sw;
	}

	public int getSW1() {
		return sw >>> 8;
	}

	public int getSW2() {
		return sw & 0xFF;
	}

	public void assertSuccessful() throws ProcessingStateException {
		ProcessingStateException.throwNew(sw);
	}

	/**
	 * Returns if SW1 indicates a normal processing.
	 *
	 * @return true if SW1 indicates a normal processing.
	 */
	public boolean isNormalCondition() {
		return getSW1() == 0x90;
	}

	/**
	 * Returns if SW1 indicates a warning processing.
	 *
	 * @return true if SW1 indicates a warning processing.
	 */
	public boolean isWarningCondition() {
		return getSW1() >= 0x62 && getSW1() <= 0x63;
	}

	/**
	 * Returns if SW1 indicates an error condition.
	 *
	 * @return true if SW1 indicates an error condition.
	 */
	public boolean isErrorCondition() {
		return !isNormalCondition() && !isWarningCondition();
	}
}