/**

  * Copyright 2010 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.student.common.ui.client.configurable.mvc.binding;

 import java.util.Iterator;

 import org.kuali.student.common.assembly.data.Data;

 import org.kuali.student.common.assembly.data.QueryPath;

 import org.kuali.student.common.assembly.data.Data.Property;

 import org.kuali.student.common.ui.client.configurable.mvc.multiplicity.DisplayMultiplicityComposite;

 import org.kuali.student.common.ui.client.configurable.mvc.multiplicity.MultiplicityComposite;

 import org.kuali.student.common.ui.client.configurable.mvc.multiplicity.MultiplicityItem;

 import org.kuali.student.common.ui.client.mvc.DataModel;

 /**

  * This just goes through each item in the multiplicity composite and calls it's binding

  * 

  * @author Kuali Student Team

  */

 /**

  * @deprecated

  */

 public class MultiplicityCompositeBinding extends ModelWidgetBindingSupport<MultiplicityComposite> {

     public static MultiplicityCompositeBinding INSTANCE = new MultiplicityCompositeBinding();

     private MultiplicityCompositeBinding() {};

     /**

      * @see org.kuali.student.common.ui.client.configurable.mvc.binding.ModelWidgetBindingSupport#setModelValue(java.lang.Object,

      *      org.kuali.student.common.ui.client.mvc.DataModel, java.lang.String)

      */

     @Override

     public void setModelValue(MultiplicityComposite mcWidget, DataModel model, String path) {

         for (MultiplicityItem item : mcWidget.getItems()) {

             MultiplicityItemBinding.INSTANCE.setModelValue(item, model, path);

         }

         for (MultiplicityItem item : mcWidget.getRemovedItems()) {

             //Check flag to add model binding for only those elements that are either added to the DB or 

             // loading frm the DB. 

             if(item.isCreated()==false){

                 MultiplicityItemBinding.INSTANCE.setModelValue(item, model, path);

             }

         }

     }

     /**

      * @see org.kuali.student.common.ui.client.configurable.mvc.binding.ModelWidgetBindingSupport#setWidgetValue(java.lang.Object,

      *      org.kuali.student.common.ui.client.mvc.DataModel, java.lang.String)

      */

     @Override

     public void setWidgetValue(MultiplicityComposite mcWidget, DataModel model, String path) {

         mcWidget.clear();

         QueryPath qPath = QueryPath.parse(path);

         Data data = null;

         if(model!=null){

                 data = model.get(qPath);

         }

         if (data != null) {

             Iterator<Property> itr = data.iterator();

             while (itr.hasNext()) {

                 Property p = (Property) itr.next();

                 if (p.getKey() instanceof Integer && !isItemDeleted(model, path, (Integer)p.getKey(), mcWidget)) {                

                     MultiplicityItem item = mcWidget.addItem();

                     item.setCreated(false);

                     item.setItemKey((Integer) p.getKey());

                     MultiplicityItemBinding.INSTANCE.setWidgetValue(item, model, path);

                 } else {

                         mcWidget.incrementItemKey();

                 }

             }

         }

     }

     /**

      * Checks to see if an item at the given index in the multiplicity has been deleted

      * 

      * @param model

      * @param path

      * @param index

      */

     public boolean isItemDeleted(DataModel model, String path, Integer index, MultiplicityComposite mcWidget){

             boolean isDeleted = false;

             // If this is a read only widget deletions aren't possible so no point checking

             if (!(mcWidget instanceof DisplayMultiplicityComposite)) {

                     QueryPath runtimeDeletedPath = QueryPath.concat(path, String.valueOf(index), MultiplicityItemBinding.RT_DELETED);

                     Boolean runtimeDeleted = model.get(runtimeDeletedPath);

                     if (runtimeDeleted != null){

                             isDeleted = runtimeDeleted;

                     }

                     return isDeleted;

             }

             return isDeleted;

     }

 }