/**
    * This file Copyright (c) 2003-2012 Magnolia International
    * Ltd.  (http://www.magnolia-cms.com). All rights reserved.
    *
    *
    * This file is dual-licensed under both the Magnolia
    * Network Agreement and the GNU General Public License.
    * You may elect to use one or the other of these licenses.
    *
   * This file is distributed in the hope that it will be
   * useful, but AS-IS and WITHOUT ANY WARRANTY; without even the
   * implied warranty of MERCHANTABILITY or FITNESS FOR A
   * PARTICULAR PURPOSE, TITLE, or NONINFRINGEMENT.
   * Redistribution, except as permitted by whichever of the GPL
   * or MNA you select, is prohibited.
   *
   * 1. For the GPL license (GPL), you can redistribute and/or
   * modify this file under the terms of the GNU General
   * Public License, Version 3, as published by the Free Software
   * Foundation.  You should have received a copy of the GNU
   * General Public License, Version 3 along with this program;
   * if not, write to the Free Software Foundation, Inc., 51
   * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
   *
   * 2. For the Magnolia Network Agreement (MNA), this file
   * and the accompanying materials are made available under the
   * terms of the MNA which accompanies this distribution, and
   * is available at http://www.magnolia-cms.com/mna.html
   *
   * Any modifications to this file must keep this entire header
   * intact.
   *
   */
  package info.magnolia.module.mail.commands;
  
  import info.magnolia.context.WebContext;
  import info.magnolia.cms.util.AlertUtil;
  import info.magnolia.module.mail.MailModule;
  import info.magnolia.module.mail.MailTemplate;
  import info.magnolia.module.mail.MgnlMailFactory;
  import info.magnolia.module.mail.templates.MailAttachment;
  import info.magnolia.module.mail.templates.MgnlEmail;
  import info.magnolia.module.mail.util.MailUtil;
  
  import java.util.Arrays;
  import java.util.List;
  import java.util.Map;
  
  import org.apache.commons.chain.Command;
  import org.apache.commons.chain.Context;
  import org.apache.commons.lang.StringUtils;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  
  /**
   * the command for sending mail.
   * @author jackie
   * @author niko
   */
  public class MailCommand implements Command {
  
      public static Logger log = LoggerFactory.getLogger(MailCommand.class);
  
      @Override
      public boolean execute(Context ctx) {
          if (log.isDebugEnabled()) {
              log.debug("starting sending mail");
          }
  
          try {
              MgnlMailFactory factory = MailModule.getInstance().getFactory();
              MgnlEmail email;
              if (log.isDebugEnabled()) {
                  log.debug(Arrays.asList(ctx.entrySet().toArray()).toString());
              }
  
              String template = (String) ctx.get("mailTemplate");
              //get parameters from mail page parameter text area
              if(ctx.containsKey(MailTemplate.MAIL_PARAMETERS)) {
                  Map<String, String> temp = MailUtil.convertToMap((String)ctx.get(MailTemplate.MAIL_PARAMETERS));
                  ctx.putAll(temp);
              }
  
              //find attachments in parameters or form if we are using one
              List<MailAttachment> attachments = null;
  
              if(ctx instanceof WebContext) {
                  attachments = MailUtil.createAttachmentList(((WebContext)ctx).getParameters());
              }
  
              if (StringUtils.isNotEmpty(template)) {
                  log.debug("Command using mail template: " + template);
  
                  email = factory.getEmailFromTemplate(template, attachments, ctx);
                  email.setBodyFromResourceFile();
              }
              else {
                  log.debug("command using static parameters");
 
                 email = factory.getEmail(ctx, attachments);
                 if(StringUtils.isEmpty(email.getTemplate().getTemplateFile())) {
                     email.setBody();
                 } else {
                     email.setBodyFromResourceFile();
                 }
 
             }
             factory.getEmailHandler().sendMail(email);
 
             log.info("send mail successfully to:" + email.getTemplate().getTo());
         }
         catch (Exception e) {
             log.debug("Could not send email:" + e.getMessage(), e);
             log.error("Could not send email:" + e.getMessage());
             AlertUtil.setMessage("Error: " + e.getMessage());
             return false;
         }
 
         return true;
     }
 
 }