/**

  * 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.ken.service.impl;

 import java.util.ArrayList;

 import java.util.Collection;

 import org.apache.commons.lang.StringUtils;

 import org.kuali.rice.core.api.exception.RiceIllegalArgumentException;

 import org.kuali.rice.ken.bo.NotificationChannel;

 import org.kuali.rice.ken.api.service.KENAPIService;

 import org.kuali.rice.ken.service.NotificationChannelService;

 import org.kuali.rice.ken.service.UserPreferenceService;

 import org.springframework.beans.factory.annotation.Required;

 /**

  * KEN API service implementation 

  * 

  * @author Kuali Rice Team (rice.collab@kuali.org)

  */

 public class KENAPIServiceImpl implements KENAPIService {

     private NotificationChannelService channelService;

     private UserPreferenceService prefsService;

     /**

      * Sets the NotificationChannelService

      * @param ncs the NotificationChannelService

      */

     @Required

     public void setNotificationChannelService(NotificationChannelService ncs) {

         this.channelService = ncs;

     }

     /**

      * Sets the UserPreferenceService

      * @param ups the UserPreferenceService

      */

     @Required

     public void setUserPreferenceService(UserPreferenceService ups) {

         this.prefsService = ups;

     }

     /**

      * @see org.kuali.rice.ken.service.KENAPIService#getAllChannels()

      */

     public Collection<String> getAllChannelNames() {

         Collection<NotificationChannel> chans = channelService.getAllNotificationChannels();

         Collection<String> chanNames = new ArrayList<String>(chans.size());

         for (NotificationChannel c: chans) {

             chanNames.add(c.getName());

         }

         return chanNames;

     }

     /**

      * @see org.kuali.rice.ken.service.KENAPIService#getDeliverersForRecipientAndChannel(java.lang.String, java.lang.String)

      */

     public Collection<String> getDeliverersForRecipientAndChannel(String recipient, String channel) {

         if (StringUtils.isBlank(recipient)) {

             throw new RiceIllegalArgumentException("recipient is null or blank");

         }

         if (StringUtils.isBlank(channel)) {

             throw new RiceIllegalArgumentException("channel is null or blank");

         }

         /*NotificationChannel nc = channelService.getNotificationChannelByName(channel);

         if (nc == null) {

             throw new RiceIllegalArgumentException("Invalid channel: '" + channel + "'");

         }

         Collection<UserDelivererConfig> configs = prefsService.getMessageDelivererConfigurationsForUserAndChannel(recipient, nc);

         Collection<String> deliverers = new ArrayList<String>(configs.size());

         for (UserDelivererConfig cfg: configs) {

             deliverers.add(cfg.getDelivererName());

         }

         return deliverers;*/

         return null;

     }

     /**

      * @see org.kuali.rice.ken.service.KENAPIService#getRecipientPreference(java.lang.String, java.lang.String)

      */

     public String getRecipientPreference(String recipient, String prefKey) {

         if (StringUtils.isBlank(recipient)) {

             throw new RiceIllegalArgumentException("recipient is null or blank");

         }

         if (StringUtils.isBlank(prefKey)) {

             throw new RiceIllegalArgumentException("prefKey is null or blank");

         }

         /*RecipientPreference rp = prefsService.getUserRecipientPreferences(recipient, prefKey);

         if (rp == null) return null;

         return rp.getValue();

         */

         return null;

     }

 }