/*

  * Copyright 2007-2008 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.kcb.service.impl;

 import java.util.Collection;

 import java.util.HashMap;

 import java.util.Map;

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

 import org.kuali.rice.kcb.bo.RecipientDelivererConfig;

 import org.kuali.rice.kcb.bo.RecipientPreference;

 import org.kuali.rice.kcb.deliverer.MessageDeliverer;

 import org.kuali.rice.kcb.exception.ErrorList;

 import org.kuali.rice.kcb.service.RecipientPreferenceService;

 /**

  * RecipientPreferenceService implementation 

  * 

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

  */

 public class RecipientPreferenceServiceImpl extends BusinessObjectServiceImpl implements RecipientPreferenceService {

     /**

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

      */

     public RecipientPreference getRecipientPreference(String recipientId, String key) {

         Map<String, String> fields = new HashMap<String, String>(2);

         fields.put(RecipientPreference.RECIPIENT_FIELD, recipientId);

         fields.put(RecipientPreference.PROPERTY_FIELD, key);

         Collection<RecipientPreference> prefs = dao.findMatching(RecipientPreference.class, fields);

         assert(prefs.size() <= 1);

         if (prefs.size() > 0) {

             return prefs.iterator().next();

         } else {

             return null;

         }

     }

     /**

      * @see org.kuali.rice.kcb.service.RecipientPreferenceService#deleteRecipientPreference(org.kuali.rice.kcb.bo.RecipientPreference)

      */

     public void deleteRecipientPreference(RecipientPreference pref) {

         dao.delete(pref);

     }

     /**

      * @see org.kuali.rice.kcb.service.RecipientPreferenceService#getRecipientPreferences(java.lang.String)

      */

     public HashMap<String, String> getRecipientPreferences(String recipientId) {

         Map<String, String> fields = new HashMap<String, String>(1);

         fields.put(RecipientPreference.RECIPIENT_FIELD, recipientId);

         HashMap<String, String> prefs = new HashMap<String,String>();

         Collection<RecipientPreference> userPrefs =  dao.findMatching(RecipientPreference.class, fields);

         for (RecipientPreference p: userPrefs) {

             prefs.put(p.getProperty(), p.getValue());

         }

         return prefs;

     }

     /**

      * @see org.kuali.rice.kcb.service.RecipientPreferenceService#saveRecipientPreference(org.kuali.rice.kcb.bo.RecipientPreference)

      */

     public void saveRecipientPreference(RecipientPreference pref) {

         dao.save(pref);

     }

     /**

      * @see org.kuali.rice.kcb.service.RecipientPreferenceService#saveRecipientPreferences(java.lang.String, java.util.HashMap, org.kuali.rice.kcb.deliverer.MessageDeliverer)

      */

     public void saveRecipientPreferences(String recipientId, HashMap<String, String> prefs, MessageDeliverer deliverer) throws ErrorList {

         deliverer.validatePreferenceValues(prefs);         

         for (Map.Entry<String, String> entry: prefs.entrySet()) {

            String prop = entry.getKey();

            String value = entry.getValue();

            // We need to check if this property is already set

            // for the user by checking doing a unique key query...if

            // it already exists, update, otherwise add it 

            RecipientPreference currentPreference = getRecipientPreference(recipientId, prop);

            if (currentPreference != null) {

               currentPreference.setRecipientId(recipientId);

               currentPreference.setProperty(prop);

               currentPreference.setValue(value);

               dao.save(currentPreference);

            } else {

               RecipientPreference recipientPreference = new RecipientPreference();

               recipientPreference.setRecipientId(recipientId);

               recipientPreference.setProperty(prop);

               recipientPreference.setValue(value);

               dao.save(recipientPreference);

            }

         }

     }

     // deliverer config

     /**

      * @see org.kuali.rice.kcb.service.RecipientPreferenceService#removeRecipientDelivererConfigs(java.lang.String)

      */

     public void removeRecipientDelivererConfigs(String recipientId) {

         Map<String, String> fields = new HashMap<String, String>(1);

         fields.put(RecipientDelivererConfig.RECIPIENT_ID, recipientId);

         dao.deleteMatching(RecipientDelivererConfig.class, fields);

     }

     /**

      * @see org.kuali.rice.kcb.service.RecipientPreferenceService#saveRecipientDelivererConfig(java.lang.String, java.lang.String, java.lang.String[])

      */

     public void saveRecipientDelivererConfig(String recipientId, String delivererName, String[] channels) {

         if (channels == null || channels.length == 0) return;

         // if selected[0] is 0 we want to remove this deliverer

         // for all channels.  We already did that above.

         for (String channel: channels) {

             RecipientDelivererConfig config = new RecipientDelivererConfig();

             config.setRecipientId(recipientId);

             config.setDelivererName(delivererName);

             config.setChannel(channel);

             // first, verify that we aren't trying to insert a duplicate

             Collection<RecipientDelivererConfig> deliverers = getDeliverersForRecipientAndChannel(recipientId, channel);

             if (deliverers != null) {

                     for (RecipientDelivererConfig deliverer : deliverers) {

                             if (deliverer.getDelivererName().equals(delivererName)) {

                                     throw new RiceRuntimeException("Attempting to save a duplicate Recipient Deliverer Config.");

                             }

                     }

             }

             dao.save(config);

         }

     }

     /**

      * @see org.kuali.rice.kcb.service.RecipientPreferenceService#getDeliverersForRecipient(java.lang.String)

      */

     public Collection<RecipientDelivererConfig> getDeliverersForRecipient(String recipientId) {

         Map<String, String> fields = new HashMap<String, String>(1);

         fields.put(RecipientDelivererConfig.RECIPIENT_ID, recipientId);

         return dao.findMatching(RecipientDelivererConfig.class, fields);

     }

     /**

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

      */

     public Collection<RecipientDelivererConfig> getDeliverersForRecipientAndChannel(String recipientId, String channel) {

         Map<String, String> fields = new HashMap<String, String>(1);

         fields.put(RecipientDelivererConfig.RECIPIENT_ID, recipientId);

         fields.put(RecipientDelivererConfig.CHANNEL, channel);

         return dao.findMatching(RecipientDelivererConfig.class, fields);

     }

 }