/*
 * 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;

import at.o2xfs.common.Bytes;
import at.o2xfs.emv.tlv.Tag;
import at.o2xfs.log.Logger;
import at.o2xfs.log.LoggerFactory;

class DOLBuilder {

	private static final Logger LOG = LoggerFactory.getLogger(DOLBuilder.class);

	private final EMVTransaction transaction;

	private final byte[] dol;

	public DOLBuilder(EMVTransaction transaction, byte[] dol) {
		this.transaction = transaction;
		this.dol = Bytes.copy(dol);
	}

	byte[] build() {
		final String method = "build()";
		DOL objectList = new DOL(dol);
		for (Tag tag : objectList) {
			EMVTag emvTag = EMVTag.getByTag(tag);
			if (emvTag == null) {
				if (LOG.isWarnEnabled()) {
					LOG.warn(method, "Unknown Tag: " + tag);
				}
				continue;
			}
			try {
				byte[] data = transaction.getData(emvTag);
				objectList.put(emvTag, data);
			} catch (DataNotFoundException e) {
				if (LOG.isInfoEnabled()) {
					LOG.info(method, "Missing data: " + e.getEMVTag());
				}
			}
		}
		return objectList.construct();
	}
}