/**
    * Copyright 2005-2015 The Kuali Foundation
    *
    * Licensed under the Educational Community License, Version 2.0 (the "License");
    * you may not use this file except in compliance with the License.
    * You may obtain a copy of the License at
    *
    * http://www.opensource.org/licenses/ecl2.php
    *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package org.kuali.rice.krad.service.impl;
  
  import javax.mail.MessagingException;
  
  import org.kuali.rice.core.api.CoreApiServiceLocator;
  import org.kuali.rice.core.api.CoreConstants;
  import org.kuali.rice.core.api.mail.MailMessage;
  import org.kuali.rice.core.api.mail.Mailer;
  import org.kuali.rice.krad.exception.InvalidAddressException;
  import org.kuali.rice.krad.service.MailService;
  import org.kuali.rice.krad.util.KRADConstants;
  
  /**
   * Default implementation of mail service
   *
   * @author Kuali Rice Team (rice.collab@kuali.org)
   */
  public class MailServiceImpl implements MailService {
      private static org.apache.log4j.Logger LOG = org.apache.log4j.Logger.getLogger(MailServiceImpl.class);
  
      private String batchMailingList;
      private Mailer mailer;
  
      private String nonProductionNotificationMailingList;
      private boolean realNotificationsEnabled = true;
  
      /**
       * The injected Mailer.
       */
      public void setMailer(Mailer mailer) {
      	this.mailer = mailer;
      }
      
      /**
       * 
       */
      public MailServiceImpl() {
          super();
      }
  
      /**
       * Sets the batchMailingList attribute value.
       * @param batchMailingList The batchMailingList to set.
       */
      public void setBatchMailingList(String batchMailingList) {
          this.batchMailingList = batchMailingList;
      }
  
      /**
       * @see org.kuali.rice.krad.service.MailService#getBatchMailingList()
       */
      public String getBatchMailingList() {
          return batchMailingList;
      }
  
  	/**
  	 * This overridden method ...
  	 * @throws MessagingException 
  	 * 
  	 * @see org.kuali.rice.krad.service.MailService#sendMessage(org.kuali.rice.core.api.mail.MailMessage)
  	 */
  	@Override
  	public void sendMessage(MailMessage message) throws InvalidAddressException, MessagingException {
  		mailer.sendEmail(composeMessage(message));		
  	}
  	
      protected MailMessage composeMessage(MailMessage message){
  
          MailMessage mm = new MailMessage();
  
          // If realNotificationsEnabled is false, mails will be sent to nonProductionNotificationMailingList
          if(!isRealNotificationsEnabled()){
              getNonProductionMessage(message);
          }
  
          String app = CoreApiServiceLocator.getKualiConfigurationService().getPropertyValueAsString(CoreConstants.Config.APPLICATION_ID);
          String env = CoreApiServiceLocator.getKualiConfigurationService().getPropertyValueAsString(KRADConstants.ENVIRONMENT_KEY);
          
          mm.setToAddresses(message.getToAddresses());
          mm.setBccAddresses(message.getBccAddresses());
          mm.setCcAddresses(message.getCcAddresses());
          mm.setSubject(app + " " + env + ": " + message.getSubject());
          mm.setMessage(message.getMessage());
          mm.setFromAddress(message.getFromAddress());
         return mm;
     }
 
     public String getNonProductionNotificationMailingList() {
         return this.nonProductionNotificationMailingList;
     }
 
     /**
      * @param nonProductionNotificationMailingList the nonProductionNotificationMailingList to set
      */
     public void setNonProductionNotificationMailingList(
             String nonProductionNotificationMailingList) {
         this.nonProductionNotificationMailingList = nonProductionNotificationMailingList;
     }
 
     /**
      * @return the realNotificationsEnabled
      */
     public boolean isRealNotificationsEnabled() {
         return this.realNotificationsEnabled;
     }
 
     /**
      * @param realNotificationsEnabled the realNotificationsEnabled to set
      */
     public void setRealNotificationsEnabled(boolean realNotificationsEnabled) {
         this.realNotificationsEnabled = realNotificationsEnabled;
     }
 
     protected MailMessage getNonProductionMessage(MailMessage message){
         StringBuilder buf = new StringBuilder();
         buf.append("Email To: ").append(message.getToAddresses()).append("\n");
         buf.append("Email CC: ").append(message.getCcAddresses()).append("\n");
         buf.append("Email BCC: ").append(message.getBccAddresses()).append("\n\n");
         buf.append(message.getMessage());
 
         message.getToAddresses().clear();
         //Note: If the non production notification mailing list is blank, sending this message will throw an exception
         message.addToAddress(getNonProductionNotificationMailingList());
         message.getBccAddresses().clear();
         message.getCcAddresses().clear();
         message.setMessage(buf.toString());
 
         return message;
     }
 }