/**
    * Copyright 2005-2011 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.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.kew.feedback.web;
  
  import java.util.Date;
  
  import javax.servlet.http.HttpServletRequest;
  import javax.servlet.http.HttpServletResponse;
  
  import org.apache.commons.lang.StringUtils;
  import org.apache.struts.action.ActionForm;
  import org.apache.struts.action.ActionForward;
  import org.apache.struts.action.ActionMapping;
  import org.kuali.rice.core.mail.EmailBody;
  import org.kuali.rice.core.mail.EmailContent;
  import org.kuali.rice.core.mail.EmailFrom;
  import org.kuali.rice.core.mail.EmailSubject;
  import org.kuali.rice.core.mail.EmailTo;
  import org.kuali.rice.kew.doctype.bo.DocumentType;
  import org.kuali.rice.kew.mail.service.EmailContentService;
  import org.kuali.rice.kew.service.KEWServiceLocator;
  import org.kuali.rice.kew.web.KewKualiAction;
  import org.kuali.rice.kim.api.identity.Person;
  import org.kuali.rice.krad.UserSession;
  import org.kuali.rice.krad.util.GlobalVariables;
  
  
  /**
   * Struts action which handles the Feedback screen.
   *
   * @author Kuali Rice Team (rice.collab@kuali.org)
   */
  public class FeedbackAction extends KewKualiAction {
  
  	private static final org.apache.log4j.Logger LOG = org.apache.log4j.Logger.getLogger(FeedbackAction.class);
  
      @Override
  	public ActionForward start(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception {
  
          // load fixed properties in Form elements
          FeedbackForm feedbackForm = (FeedbackForm) form;
          feedbackForm.setTimeDate(new Date().toString());
  
          // load User properties in Form elements
          feedbackForm.setComments("");
  
          // load application properties from Request in Form elements
          String documentType = request.getParameter("docType");
          if (documentType == null) {
              documentType = "";
          }
          feedbackForm.setDocumentType(documentType);
  
          String pageUrl = request.getParameter("pageUrl");
          if (pageUrl == null) {
              pageUrl = "";
          }
          feedbackForm.setPageUrl(pageUrl);
  
          String documentId = request.getParameter("documentId");
          if (documentId == null) {
              documentId = "";
          }
          feedbackForm.setDocumentId(documentId);
  
          String exception = request.getParameter("exception");
          if (exception == null) {
              feedbackForm.setException("");
              feedbackForm.setCategory("");
          } else {
              feedbackForm.setCategory("problem");
              feedbackForm.setException(exception);
          }
  
          UserSession uSession = getUserSession();
  
          Person workflowUser = uSession.getPerson();
          if (workflowUser != null) {
              feedbackForm.setNetworkId(workflowUser.getPrincipalName());
              feedbackForm.setUserEmail(workflowUser.getEmailAddress());
              String name = workflowUser.getName().trim();
              feedbackForm.setUserName(name);
              String firstName = name.substring(0, name.indexOf(" "));
              String lastName = name.substring(name.lastIndexOf(" ") + 1, name.length());
              feedbackForm.setFirstName(firstName);
              feedbackForm.setLastName(lastName);
         } else {
             feedbackForm.setNetworkId("");
             feedbackForm.setUserEmail("");
             feedbackForm.setUserName("");
             feedbackForm.setFirstName("");
             feedbackForm.setLastName("");
         }
 
         return mapping.findForward("start");
     }
 
     public ActionForward sendFeedback(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception {
     	FeedbackForm feedbackForm = (FeedbackForm)form;    	
         EmailContentService emailContentService = KEWServiceLocator.getEmailContentService();
         String fromAddress = determineFromAddress(emailContentService, feedbackForm);
     	String toAddress = emailContentService.getApplicationEmailAddress();
         EmailContent content = emailContentService.generateFeedback(feedbackForm);
         KEWServiceLocator.getMailer().sendEmail(new EmailFrom(fromAddress), new EmailTo(toAddress), new EmailSubject(content.getSubject()), new EmailBody(content.getBody()), content.isHtml());
     	return mapping.findForward("sent");
     }
 
     private String determineFromAddress(EmailContentService emailContentService, FeedbackForm form) {
     	DocumentType docType = null;
     	if (!StringUtils.isEmpty(form.getDocumentType())) {
     		docType = KEWServiceLocator.getDocumentTypeService().findByName(form.getDocumentType());
     		if (docType == null) {
     			LOG.warn("Couldn't locate document type for the given name to determine feedback from address! " + form.getDocumentType());
     		}
     	}
     	// if we pass null to this method it will return us the application email address
     	return emailContentService.getDocumentTypeEmailAddress(docType);
     }
 
     private static UserSession getUserSession() {
         return GlobalVariables.getUserSession();
     }
 }