/**
    * Copyright 2011 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.osedu.org/licenses/ECL-2.0
    *
    * 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.mobility.email.service;
  
  import org.apache.commons.lang.StringUtils;
  import org.apache.commons.mail.DefaultAuthenticator;
  import org.apache.commons.mail.Email;
  import org.apache.commons.mail.EmailException;
  import org.apache.commons.mail.SimpleEmail;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  import org.springframework.beans.factory.annotation.Autowired;
  import org.springframework.beans.factory.annotation.Qualifier;
  import org.springframework.stereotype.Service;
  
  import java.util.Properties;
  
  /**
   * A service for doing the actual work of sending email.
   * @author Kuali Mobility Team (mobility.dev@kuali.org)
   */
  @Service
  public class EmailServiceImpl implements EmailService {
  
  	private static final Logger LOG = LoggerFactory
  			.getLogger(EmailServiceImpl.class);
  	
  	@Autowired
  	@Qualifier("kmeProperties")
  	private Properties kmeProperties;
  	
  	public Properties getKmeProperties() {
  		return kmeProperties;
  	}
  
  	public void setKmeProperties(Properties kmeProperties) {
  		this.kmeProperties = kmeProperties;
  	}
  
  	@Override
  	public boolean sendEmail(String body, String subject, String emailAddressTo, String emailAddressFrom) {
  		boolean emailSent = false;		
  		
  		if(emailAddressFrom == null || StringUtils.isEmpty(emailAddressFrom)){
  			emailAddressFrom = kmeProperties.getProperty("email.from");
  			if(emailAddressFrom == null){
  				return emailSent;
  			}			
  		}
  		
  		if(emailAddressTo == null || StringUtils.isEmpty(emailAddressTo)){
  			return emailSent;
  		}
  		
  		if(subject == null || StringUtils.isEmpty(subject)){
  			return emailSent;
  		}
  		
  		if(body == null || StringUtils.isEmpty(body)){
  			return emailSent;
  		}
  		
  		try{
  			Email email = new SimpleEmail();
  			email.setHostName(kmeProperties.getProperty("email.host"));
  			email.setSmtpPort(Integer.parseInt(kmeProperties.getProperty("email.port")));
  			email.setAuthenticator(new DefaultAuthenticator(kmeProperties.getProperty("email.username"), 
  						kmeProperties.getProperty("email.passsword")));
  			email.setSSLOnConnect(true);
  			email.setFrom(emailAddressFrom);
  			email.setSubject(subject);
  			email.setMsg(body);
  			email.addTo(emailAddressTo);
  			email.send();
  			emailSent = true;
  			LOG.debug("Mail Sent...");
  		}catch(EmailException e){			
  			LOG.error("Mail send failed...",e);
  		}
  		return emailSent;
  	}
  
  }