/**
 * MailArchiver is an application that provides services for storing and managing e-mail messages through a Web Services SOAP interface.
 * Copyright (C) 2012  Marcio Andre Scholl Levien and Fernando Alberto Reuter Wendt and Jose Ronaldo Nogueira Fonseca Junior
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

/******************************************************************************\
*
*  This product was developed by
*
*        SERVIÇO FEDERAL DE PROCESSAMENTO DE DADOS (SERPRO),
*
*  a government company established under Brazilian law (5.615/70),
*  at Department of Development of Porto Alegre.
*
\******************************************************************************/

package serpro.mailarchiver.util;

import serpro.mailarchiver.domain.metaarchive.BinaryBody;
import serpro.mailarchiver.domain.metaarchive.ContentDispositionField;
import serpro.mailarchiver.domain.metaarchive.ContentTypeField;
import serpro.mailarchiver.domain.metaarchive.Entity;
import serpro.mailarchiver.domain.metaarchive.SingleBody;
import serpro.mailarchiver.domain.metaarchive.TextBody;

public abstract class BodyVisitor {

    private boolean quitted;

    public final boolean isQuitted() {
        return quitted;
    }

    protected final void quit() {
        quitted = true;
    }

    public final void visitSingleBody(SingleBody singleBody) {
        if(singleBody == null) {
            return;
        }
        if(quitted) {
            return;
        }

        boolean isTextBody = (singleBody instanceof TextBody);
        boolean isBinaryBody = (singleBody instanceof BinaryBody);

        Entity entity = singleBody.getEntity();

        ContentTypeField contentTypeField = (entity != null) ? entity.getContentTypeField() : null;

        boolean isTextType  = (contentTypeField != null) ? contentTypeField.isTextMediaType()  : true;
        boolean isImageType = (contentTypeField != null) ? contentTypeField.isImageMediaType() : false;
        boolean isAudioType = (contentTypeField != null) ? contentTypeField.isAudioMediaType() : false;
        boolean isVideoType = (contentTypeField != null) ? contentTypeField.isVideoMediaType() : false;

        ContentDispositionField contentDispositionField = (entity != null) ? entity.getContentDispositionField() : null;

        boolean isInlineDisposition = (contentDispositionField != null) ? contentDispositionField.isInlineDisposition() : false;
        boolean isAttachmentDisposition = (contentDispositionField != null) ? contentDispositionField.isAttachmentDisposition() : false;

        if(isTextBody && isTextType && !isAttachmentDisposition) {
            visitTextBody((TextBody)singleBody);
        }

        if(isBinaryBody) {
            visitBinaryBody((BinaryBody)singleBody);
        }

        if(isInlineDisposition && !isTextType) {
            visitInlineBody(singleBody);
        }
        else if(isAttachmentDisposition) {
            visitAttachmentBody(singleBody);
        }
        else {
            if(isImageType || isAudioType || isVideoType) {
                visitAttachmentBody(singleBody);
            }
        }
    }

    public void visitTextBody(TextBody textBody) {}

    public void visitBinaryBody(BinaryBody binaryBody) {}

    public void visitInlineBody(SingleBody singleBody) {}

    public void visitAttachmentBody(SingleBody singleBody) {}
}