/**

  * Copyright (c) 2014-2017, jcabi.com

  * All rights reserved.

  *

  * Redistribution and use in source and binary forms, with or without

  * modification, are permitted provided that the following conditions

  * are met: 1) Redistributions of source code must retain the above

  * copyright notice, this list of conditions and the following

  * disclaimer. 2) 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. 3) Neither the name of the jcabi.com nor

  * the names of its contributors may be used to endorse or promote

  * products derived from this software without specific prior written

  * permission.

  *

  * 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 HOLDER 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 com.jcabi.email.enclosure;

 import com.jcabi.aspects.Immutable;

 import com.jcabi.aspects.Loggable;

 import com.jcabi.email.Enclosure;

 import javax.mail.MessagingException;

 import javax.mail.internet.MimeBodyPart;

 import javax.mail.internet.MimeUtility;

 import lombok.EqualsAndHashCode;

 import lombok.ToString;

 /**

  * HTML enclosure in MIME envelope.

  *

  * @author Yegor Bugayenko (yegor@teamed.io)

  * @version $Id: d9cbc7252a05cd6f6cf6ff5271132b7930d5d7b7 $

  * @since 1.0

  */

 @Immutable

 @ToString

 @EqualsAndHashCode(of = {"text", "charset"})

 @Loggable(Loggable.DEBUG)

 public final class EnHTML implements Enclosure {

     /**

      * Text content.

      */

     private final transient String text;

     /**

      * Text charset.

      */

     private final transient String charset;

     /**

      * Ctor.

      * @param content HTML content

      */

     public EnHTML(final String content) {

         this(content, "UTF-8");

     }

     /**

      * Ctor.

      * @param content HTML content

      * @param charset Content charset

      */

     public EnHTML(final String content, final String charset) {

         this.text = content;

         this.charset = charset;

     }

     @Override

     public MimeBodyPart part() throws MessagingException {

         final MimeBodyPart mime = new MimeBodyPart();

         final String characterset = MimeUtility.quote(

             this.charset,

             "()<>@,;:\\\"\t []/?="

         );

         final String ctype = String.format(

             "text/html;charset=\"%s\"",

             characterset

         );

         mime.setContent(this.text, ctype);

         mime.addHeader("Content-Type", ctype);

         return mime;

     }

 }