/**
 * DSS - Digital Signature Services
 * Copyright (C) 2015 European Commission, provided under the CEF programme
 *
 * This file is part of the "DSS - Digital Signature Services" project.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 */
package eu.europa.esig.dss.xades.signature;

import java.io.File;
import java.io.FileInputStream;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;

import org.junit.Before;

import eu.europa.esig.dss.DSSDocument;
import eu.europa.esig.dss.DSSUtils;
import eu.europa.esig.dss.DigestAlgorithm;
import eu.europa.esig.dss.DigestDocument;
import eu.europa.esig.dss.FileDocument;
import eu.europa.esig.dss.MimeType;
import eu.europa.esig.dss.SignatureAlgorithm;
import eu.europa.esig.dss.SignatureLevel;
import eu.europa.esig.dss.SignaturePackaging;
import eu.europa.esig.dss.signature.AbstractTestDocumentSignatureService;
import eu.europa.esig.dss.signature.DocumentSignatureService;
import eu.europa.esig.dss.test.gen.CertificateService;
import eu.europa.esig.dss.test.mock.MockPrivateKeyEntry;
import eu.europa.esig.dss.utils.Utils;
import eu.europa.esig.dss.validation.CertificateVerifier;
import eu.europa.esig.dss.validation.CommonCertificateVerifier;
import eu.europa.esig.dss.validation.SignedDocumentValidator;
import eu.europa.esig.dss.validation.reports.Reports;
import eu.europa.esig.dss.xades.XAdESSignatureParameters;

public class XAdESLevelBDetachedDigestDocumentTest extends AbstractTestDocumentSignatureService<XAdESSignatureParameters> {

	private DocumentSignatureService<XAdESSignatureParameters> service;
	private XAdESSignatureParameters signatureParameters;
	private DSSDocument documentToSign;
	private MockPrivateKeyEntry privateKeyEntry;

	@Before
	public void init() throws Exception {
		File file = new File("src/test/resources/sample.xml");
		FileInputStream fis = new FileInputStream(file);
		byte[] bytes = Utils.toByteArray(fis);
		Utils.closeQuietly(fis);
		String computedDigest = Utils.toBase64(DSSUtils.digest(DigestAlgorithm.SHA256, bytes));

		DigestDocument digestDocument = new DigestDocument();
		digestDocument.setName("sample.xml");
		digestDocument.addDigest(DigestAlgorithm.SHA256, computedDigest);

		documentToSign = digestDocument;

		CertificateService certificateService = new CertificateService();
		privateKeyEntry = certificateService.generateCertificateChain(SignatureAlgorithm.RSA_SHA256);

		signatureParameters = new XAdESSignatureParameters();
		signatureParameters.bLevel().setSigningDate(new Date());
		signatureParameters.setSigningCertificate(privateKeyEntry.getCertificate());
		signatureParameters.setCertificateChain(privateKeyEntry.getCertificateChain());
		signatureParameters.setSignaturePackaging(SignaturePackaging.DETACHED);
		signatureParameters.setSignatureLevel(SignatureLevel.XAdES_BASELINE_B);

		CertificateVerifier certificateVerifier = new CommonCertificateVerifier();
		service = new XAdESService(certificateVerifier);
	}

	@Override
	protected Reports getValidationReport(final DSSDocument signedDocument) {
		SignedDocumentValidator validator = SignedDocumentValidator.fromDocument(signedDocument);
		validator.setCertificateVerifier(new CommonCertificateVerifier());
		List<DSSDocument> detachedContents = new ArrayList<DSSDocument>();
		detachedContents.add(new FileDocument(new File("src/test/resources/sample.xml")));
		validator.setDetachedContents(detachedContents);
		Reports reports = validator.validateDocument();
		return reports;
	}

	@Override
	protected DocumentSignatureService<XAdESSignatureParameters> getService() {
		return service;
	}

	@Override
	protected XAdESSignatureParameters getSignatureParameters() {
		return signatureParameters;
	}

	@Override
	protected MimeType getExpectedMime() {
		return MimeType.XML;
	}

	@Override
	protected boolean isBaselineT() {
		return false;
	}

	@Override
	protected boolean isBaselineLTA() {
		return false;
	}

	@Override
	protected DSSDocument getDocumentToSign() {
		return documentToSign;
	}

	@Override
	protected MockPrivateKeyEntry getPrivateKeyEntry() {
		return privateKeyEntry;
	}

}