/**
    * Copyright 2005-2013 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.bo;
  
  import org.apache.commons.collections.CollectionUtils;
  import org.hibernate.annotations.GenericGenerator;
  import org.hibernate.annotations.Parameter;
  import org.kuali.rice.ken.api.notification.NotificationChannel;
  import org.kuali.rice.ken.api.notification.NotificationChannelContract;
  import org.kuali.rice.ken.api.notification.NotificationChannelReviewer;
  import org.kuali.rice.ken.api.notification.NotificationChannelReviewerContract;
  import org.kuali.rice.ken.api.notification.NotificationContentType;
  import org.kuali.rice.ken.api.notification.NotificationListRecipient;
  import org.kuali.rice.ken.api.notification.NotificationListRecipientContract;
  import org.kuali.rice.ken.api.notification.NotificationProducer;
  import org.kuali.rice.ken.api.notification.NotificationProducerContract;
  import org.kuali.rice.ken.api.notification.UserChannelSubscription;
  import org.kuali.rice.ken.api.notification.UserChannelSubscriptionContract;
  import org.kuali.rice.krad.bo.PersistableBusinessObjectBase;
  
  import javax.persistence.*;
  import java.util.ArrayList;
  import java.util.List;
  
  /**
   * This class represents and instance of a Notification Channel. A Notification Channel is correlated to a specific class of
   * notification, or in other words a specific business purpose. For instance, all overdue books from a specific library could
   * be a channel or a channel for concerts coming to campus could be another channel.
   * 
   * @author Kuali Rice Team (rice.collab@kuali.org)
   */
  @Entity
  @Table(name = "KREN_CHNL_T")
  public class NotificationChannelBo extends PersistableBusinessObjectBase implements NotificationChannelContract {
  	@Id
  	@GeneratedValue(generator="KREN_CHNL_S")
  	@GenericGenerator(name="KREN_CHNL_S",strategy="org.hibernate.id.enhanced.SequenceStyleGenerator",parameters={
  			@Parameter(name="sequence_name",value="KREN_CHNL_S"),
  			@Parameter(name="value_column",value="id")
  	})
  	@Column(name = "CHNL_ID")
  	private Long id;
  	@Column(name = "NM", nullable = false)
  	private String name;
  	@Column(name = "DESC_TXT", nullable = false)
  	private String description;
  	@Column(name = "SUBSCRB_IND", nullable = false)
  	private boolean subscribable;
  
  	// List references
  	@OneToMany(cascade={CascadeType.REFRESH, CascadeType.DETACH, CascadeType.REMOVE, CascadeType.MERGE, CascadeType.PERSIST}, 
  			targetEntity=NotificationRecipientListBo.class, mappedBy="channel")
  	@OrderBy ("id ASC")
  	private List<NotificationRecipientListBo> recipientLists;
  	
  	@ManyToMany(fetch=FetchType.LAZY, cascade={CascadeType.REFRESH, CascadeType.DETACH, CascadeType.MERGE, CascadeType.PERSIST})@JoinTable(name="KREN_CHNL_PRODCR_T", 
  			joinColumns=@JoinColumn(name="CHNL_ID"), 
  			inverseJoinColumns=@JoinColumn(name="PRODCR_ID"))
  	@OrderBy ("id ASC")
  	private List<NotificationProducerBo> producers;
  	
  	@OneToMany(cascade={CascadeType.REFRESH, CascadeType.DETACH, CascadeType.REMOVE, CascadeType.MERGE, CascadeType.PERSIST}, 
  			targetEntity=NotificationChannelReviewerBo.class, mappedBy="channel")
  	@OrderBy ("id ASC")
  	private List<NotificationChannelReviewerBo> reviewers = new ArrayList<NotificationChannelReviewerBo>();
  	
  	@OneToMany(cascade={CascadeType.REFRESH, CascadeType.DETACH, CascadeType.REMOVE, CascadeType.MERGE, CascadeType.PERSIST}, 
  			targetEntity=UserChannelSubscriptionBo.class, mappedBy="channel")
  	@OrderBy ("id ASC")
  	private List<UserChannelSubscriptionBo> subscriptions = new ArrayList<UserChannelSubscriptionBo>();
  
  
  	/**
  	 * Constructs a NotificationChannel instance.
  	 */
  	public NotificationChannelBo() {
  		super();
  		recipientLists = new ArrayList<NotificationRecipientListBo>();
  		producers = new ArrayList<NotificationProducerBo>();
  	}
  
  	/**
  	 * Gets the recipientLists attribute.
  	 * 
  	 * @return Returns the recipientLists.
  	 */
 	public List<NotificationRecipientListBo> getRecipientLists() {
 		return recipientLists;
 	}
 
 	/**
 	 * Sets the recipientLists attribute value.
 	 * 
 	 * @param recipientLists
 	 *            The recipientLists to set.
 	 */
 	public void setRecipientLists(List<NotificationRecipientListBo> recipientLists) {
 		this.recipientLists = recipientLists;
 	}
 
 	/**
 	 * This method adds a recipient list to the overall set of recipient lists that are associated with this channnel.
 	 * 
 	 * @param recipientList
 	 */
 	public void addRecipientList(NotificationRecipientListBo recipientList) {
 		this.recipientLists.add(recipientList);
 	}
 
 	/**
 	 * This method removes a recipient list object from the overall list.
 	 * 
 	 * @param recipientList
 	 */
 	public void removeRecipientList(NotificationRecipientListBo recipientList) {
 		this.recipientLists.remove(recipientList);
 	}
 
 	/**
 	 * Gets the description attribute.
 	 * 
 	 * @return Returns the description.
 	 */
 	public String getDescription() {
 		return description;
 	}
 
 	/**
 	 * Sets the description attribute value.
 	 * 
 	 * @param description
 	 *            The description to set.
 	 */
 	public void setDescription(String description) {
 		this.description = description;
 	}
 
 	/**
 	 * Gets the id attribute.
 	 * 
 	 * @return Returns the id.
 	 */
 	public Long getId() {
 		return id;
 	}
 
 	/**
 	 * Sets the id attribute value.
 	 * 
 	 * @param id
 	 *            The id to set.
 	 */
 	public void setId(Long id) {
 		this.id = id;
 	}
 
 	/**
 	 * Gets the name attribute.
 	 * 
 	 * @return Returns the name.
 	 */
 	public String getName() {
 		return name;
 	}
 
 	/**
 	 * Sets the name attribute value.
 	 * 
 	 * @param name
 	 *            The name to set.
 	 */
 	public void setName(String name) {
 		this.name = name;
 	}
 
 	/**
 	 * Gets the subscribable attribute.
 	 * 
 	 * @return Returns the subscribable.
 	 */
 	public boolean isSubscribable() {
 		return subscribable;
 	}
 
 	/**
 	 * Sets the subscribable attribute value.
 	 * 
 	 * @param subscribable
 	 *            The subscribable to set.
 	 */
 	public void setSubscribable(boolean subscribable) {
 		this.subscribable = subscribable;
 	}
 
 	/**
 	 * Gets the producers attribute.
 	 * 
 	 * @return Returns the producers.
 	 */
 	public List<NotificationProducerBo> getProducers() {
 		return producers;
 	}
 
 	/**
 	 * Sets the producers attribute value.
 	 * 
 	 * @param producers
 	 *            The producers to set.
 	 */
 	public void setProducers(List<NotificationProducerBo> producers) {
 		this.producers = producers;
 	}
 
 	/**
 	 * Gets the list of reviewers for notification publications to this channel
 	 * 
 	 * @return the list of reviewers for notification publications to this channel
 	 */
 	public List<NotificationChannelReviewerBo> getReviewers() {
 		return reviewers;
 	}
 
 	/**
 	 * Sets the list of reviewers for notification publications to this channel
 	 * 
 	 * @param reviewers
 	 *            the list of reviewers for notification publications to this channel
 	 */
 	public void setReviewers(List<NotificationChannelReviewerBo> reviewers) {
 		this.reviewers = reviewers;
 	}
 
 	/**
 	 * Gets the list of subscriptions to this channel
 	 * 
 	 * @return the list of subscriptions to this channel
 	 */
 	public List<UserChannelSubscriptionBo> getSubscriptions() {
 		return subscriptions;
 	}
 
 	/**
 	 * Sets the list of subscriptions to this channel
 	 * 
 	 * @param subscriptions
 	 *            the list of subscriptions to this channel
 	 */
 	public void setSubscriptions(List<UserChannelSubscriptionBo> subscriptions) {
 		this.subscriptions = subscriptions;
 	}
 
 	/**
 	 * Compares the id values of each NotificationChannel object.
 	 * 
 	 * @see java.lang.Object#equals(java.lang.Object)
 	 */
 	@Override
 	public boolean equals(Object obj) {
 		NotificationChannelBo channelToCompare = (NotificationChannelBo) obj;
 		return this.getId().equals(channelToCompare.getId());
 	}
 
     /**
      * Converts a mutable bo to its immutable counterpart
      * @param bo the mutable business object
      * @return the immutable object
      */
     public static NotificationChannel to(NotificationChannelBo bo) {
         if (bo == null) {
             return null;
         }
 
         return NotificationChannel.Builder.create(bo).build();
     }
 
     /**
      * Converts a immutable object to its mutable counterpart
      * @param im immutable object
      * @return the mutable bo
      */
     public static NotificationChannelBo from(NotificationChannel im) {
         if (im == null) {
             return null;
         }
 
         NotificationChannelBo bo = new NotificationChannelBo();
         bo.setId(im.getId());
         bo.setVersionNumber(im.getVersionNumber());
         bo.setObjectId(im.getObjectId());
         bo.setName(im.getName());
         bo.setDescription(im.getDescription());
 
         bo.setSubscribable(im.isSubscribable());
 
         List<NotificationRecipientListBo> tempRecipientLists = new ArrayList<NotificationRecipientListBo>();
         if (CollectionUtils.isNotEmpty(im.getRecipientLists())) {
             for (NotificationListRecipient listRecipient : im.getRecipientLists()) {
                 tempRecipientLists.add(NotificationRecipientListBo.from(listRecipient));
             }
             bo.setRecipientLists(tempRecipientLists);
         }
 
         List<NotificationProducerBo> tempProducers = new ArrayList<NotificationProducerBo>();
         if (CollectionUtils.isNotEmpty(im.getProducers())) {
             for (NotificationProducer producer : im.getProducers()) {
                 tempProducers.add(NotificationProducerBo.from(producer));
             }
             bo.setProducers(tempProducers);
         }
 
         List<NotificationChannelReviewerBo> tempReviewers = new ArrayList<NotificationChannelReviewerBo>();
         if (CollectionUtils.isNotEmpty(im.getReviewers())) {
             for (NotificationChannelReviewer reviewer : im.getReviewers()) {
                 tempReviewers.add(NotificationChannelReviewerBo.from(reviewer));
             }
             bo.setReviewers(tempReviewers);
         }
 
         List<UserChannelSubscriptionBo> tempSubscriptions = new ArrayList<UserChannelSubscriptionBo>();
         if (CollectionUtils.isNotEmpty(im.getSubscriptions())) {
             for (UserChannelSubscription subscription : im.getSubscriptions()) {
                 tempSubscriptions.add(UserChannelSubscriptionBo.from(subscription));
             }
             bo.setSubscriptions(tempSubscriptions);
         }
 
         return bo;
     }
 }