/**
    * 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.student.core.krms;
  
  import org.apache.commons.lang.StringUtils;
  import org.kuali.rice.krad.uif.UifConstants;
  import org.kuali.rice.krad.uif.component.Component;
  import org.kuali.rice.krad.uif.component.DataBinding;
  import org.kuali.rice.krad.uif.container.CollectionGroup;
  import org.kuali.rice.krad.uif.container.Container;
  import org.kuali.rice.krad.uif.container.Group;
  import org.kuali.rice.krad.uif.element.Action;
  import org.kuali.rice.krad.uif.field.Field;
  import org.kuali.rice.krad.uif.field.FieldGroup;
  import org.kuali.rice.krad.uif.layout.StackedLayoutManager;
  import org.kuali.rice.krad.uif.util.ComponentUtils;
  import org.kuali.rice.krad.uif.util.ObjectPropertyUtils;
  import org.kuali.rice.krad.uif.view.View;
  import org.kuali.rice.krad.web.form.UifFormBase;
  
  import java.util.ArrayList;
  import java.util.List;
  import java.util.Map;
  
  /**
   * @author Kuali Student Team
   */
  public class HorizontalActionsStackedLayoutManager extends StackedLayoutManager {
  
      @Override
      public void buildLine(View view, Object model, CollectionGroup collectionGroup, List<Field> lineFields,
                            List<FieldGroup> subCollectionFields, String bindingPath, List<Action> actions, String idSuffix,
                            Object currentLine, int lineIndex) {
  
          boolean isAddLine = lineIndex == -1;
  
          // construct new group
          Group lineGroup = null;
          if (isAddLine) {
              setStackedGroups(new ArrayList<Group>());
  
              if (this.getAddLineGroup() == null) {
                  lineGroup = ComponentUtils.copy(this.getLineGroupPrototype(), idSuffix);
              } else {
                  lineGroup = ComponentUtils.copy(getAddLineGroup(), idSuffix);
                  lineGroup.addStyleClass(collectionGroup.getAddItemCssClass());
              }
  
              if (collectionGroup.isAddViaLightBox()) {
                  String actionScript = "showLightboxComponent('" + lineGroup.getId() + "');";
                  if (StringUtils.isNotBlank(collectionGroup.getAddViaLightBoxAction().getActionScript())) {
                      actionScript = collectionGroup.getAddViaLightBoxAction().getActionScript() + actionScript;
                  }
                  collectionGroup.getAddViaLightBoxAction().setActionScript(actionScript);
                  lineGroup.setStyle("display: none");
              }
          } else {
              lineGroup = ComponentUtils.copy(this.getLineGroupPrototype(), idSuffix);
          }
  
          if (((UifFormBase) model).isAddedCollectionItem(currentLine)) {
              lineGroup.addStyleClass(collectionGroup.getNewItemsCssClass());
          }
  
          ComponentUtils.updateContextForLine(lineGroup, currentLine, lineIndex, idSuffix);
  
          // build header text for group
          String headerText = "";
          if (isAddLine) {
              headerText = collectionGroup.getAddLabel();
          } else {
              // get the collection for this group from the model
              List<Object> modelCollection = ObjectPropertyUtils.getPropertyValue(model,
                      ((DataBinding) collectionGroup).getBindingInfo().getBindingPath());
  
              headerText = buildLineHeaderText(view, modelCollection.get(lineIndex), lineGroup);
          }
  
          // don't set header if text is blank (could already be set by other means)
          if (StringUtils.isNotBlank(headerText) && lineGroup.getHeader() != null) {
              lineGroup.getHeader().setHeaderText(headerText);
          }
  
          // stack all fields (including sub-collections) for the group
          List<Component> groupFields = new ArrayList<Component>();
          groupFields.addAll(lineFields);
 
         // set line actions on group footer
         if (collectionGroup.isRenderLineActions() && !collectionGroup.isReadOnly() && (lineGroup.getFooter() != null)) {
 
             // add the actions to the line group if isActionsInLineGroup flag is true
             if (isActionsInLineGroup()) {
                 groupFields.addAll(actions);
                 groupFields.addAll(subCollectionFields);
                 lineGroup.setRenderFooter(false);
             }else{
                 List<Component> footerFields = new ArrayList<Component>();
                 footerFields.addAll(actions);
                 footerFields.addAll(subCollectionFields);
                 lineGroup.getFooter().setItems(footerFields);
             }
         }
 
         lineGroup.setItems(groupFields);
         this.getStackedGroups().add(lineGroup);
 
         if (lineIndex == -1) {
             String nodePath = this.getNodePath(this.getContext());
             if (nodePath != null) {
                 for (Group group : this.getStackedGroups()) {
                     //Set the nodepath on the add line group so that progressive rendering can use the #np
                     ComponentUtils.pushObjectToContext(group, UifConstants.ContextVariableNames.NODE_PATH, nodePath);
                 }
             }
         }
 
     }
 
     private String getNodePath(Map<String, Object> context) {
         if (context.containsKey(UifConstants.ContextVariableNames.NODE_PATH)) {
             return (String) context.get(UifConstants.ContextVariableNames.NODE_PATH);
 
         } else if (context.containsKey(UifConstants.ContextVariableNames.PARENT)) {
             Component parent = (Component) context.get(UifConstants.ContextVariableNames.PARENT);
             return this.getNodePath(parent.getContext());
         }
         return null;
     }
 
 }