/*
 * Copyright 2004 - 2013 Wayne Grant
 *           2013 - 2025 Kai Kramer
 *
 * This file is part of KeyStore Explorer.
 *
 * KeyStore Explorer is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * KeyStore Explorer 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with KeyStore Explorer.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.kse.gui.dnd;

import java.awt.Toolkit;
import java.security.cert.Certificate;

import javax.swing.ImageIcon;

import org.kse.crypto.CryptoException;
import org.kse.crypto.x509.X509CertUtil;

/**
 * Encapsulates a draggable trusted certificate entry.
 * <p>
 * Product of drag is a PEM'd X.509 encoding of the trusted certificate.
 */
public class DragTrustedCertificateEntry extends DragEntry {
    private static final String EXTENSION = "cer";

    private byte[] contentBytes;
    private String contentStr;
    private ImageIcon image;

    /**
     * Construct DragTrustedCertificateEntry.
     *
     * @param name               Entry name
     * @param trustedCertificate Trusted certificate
     * @throws CryptoException If there was a problem creating the content
     */
    public DragTrustedCertificateEntry(String name, Certificate trustedCertificate) throws CryptoException {
        super(name);

        // String content is X.509 PEM
        contentStr = X509CertUtil.getCertEncodedX509Pem(X509CertUtil.convertCertificate(trustedCertificate));

        // Binary content is bytes of same
        contentBytes = contentStr.getBytes();

        // Get drag image
        image = new ImageIcon(
                Toolkit.getDefaultToolkit().createImage(getClass().getResource("images/drag_trustcert.png")));
    }

    /**
     * Get entry image - to display while dragging.
     *
     * @return Entry image
     */
    @Override
    public ImageIcon getImage() {
        return image;
    }

    /**
     * Get entry file extension. Used to generate dragged file name.
     *
     * @return File extension
     */
    @Override
    public String getExtension() {
        return EXTENSION;
    }

    /**
     * Get entry content as binary.
     *
     * @return Content
     */
    @Override
    public byte[] getContent() {
        return contentBytes;
    }

    /**
     * Get entry content as a string.
     *
     * @return Content
     */
    @Override
    public String getContentString() {
        return contentStr;
    }
}
