/**
    * 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.krms.util;
  
  import org.kuali.rice.krad.uif.component.Component;
  import org.kuali.rice.krad.uif.container.CollectionGroupBase;
  import org.kuali.rice.krad.uif.container.CollectionGroupBuilder;
  import org.kuali.rice.krad.uif.container.Group;
  import org.kuali.rice.krad.uif.container.TreeGroup;
  import org.kuali.rice.krad.uif.element.Action;
  import org.kuali.rice.krad.uif.field.DataField;
  import org.kuali.rice.krad.uif.lifecycle.ViewLifecycleUtils;
  import org.kuali.rice.krad.uif.util.ComponentUtils;
  import org.kuali.rice.krms.dto.AgendaEditor;
  import org.kuali.rice.krms.dto.RuleEditor;
  import org.kuali.rice.krms.service.RuleViewHelperService;
  
  import java.util.ArrayList;
  import java.util.List;
  
  /**
   * @author Kuali Student Team
   */
  public class AgendaBuilder {
  
      public static final String AGENDA = "_agenda";
      public static final String RULE = "_rule";
  
      private RuleViewHelperService viewHelperService;
  
      /**
       * This method dynamically build the components on the screen to render an agenda.
       *
       * @param agenda
       * @return
       */
      public Component buildAgenda(AgendaEditor agenda, int index, AgendaSection agendaSection) {
          String agendaSuffix = AGENDA + Integer.toString(index);
          Group group = ComponentUtils.copy(agendaSection.getAgendaPrototype(), agendaSuffix);
          group.setHeaderText(agenda.getAgendaTypeInfo().getDescription());
  
          String bindingPrefix = agendaSection.getPropertyName() + "[" + index + "].";
          List<Component> components = new ArrayList<Component>();
          for (RuleEditor rule : agenda.getRuleEditors().values()) {
              components.add(buildRule(rule, bindingPrefix, agendaSection));
          }
  
          group.setItems(components);
  
          return group;
      }
  
      /**
       * This method dynamically builds a disclosure section for each rule that already exists.
       *
       * @param rule
       * @return
       */
      protected Component buildRule(RuleEditor rule, String bindingPrefix, AgendaSection agendaSection) {
          String ruleSuffix = RULE + rule.getKey();
          Group group = ComponentUtils.copy(agendaSection.getRulePrototype(), ruleSuffix);
          group.setHeaderText(rule.getRuleTypeInfo().getDescription());
  
          //Set the rule key on the action links.
          List<Action> actionLinks = ViewLifecycleUtils.getElementsOfTypeDeep(group, Action.class);
          for (Action actionLink : actionLinks) {
              actionLink.getActionParameters().put("ruleKey", rule.getKey());
              actionLink.getActionParameters().put("ruleType", rule.getRuleTypeInfo().getType());
          }
  
          ComponentUtils.updateContextForLine(group, null, rule, 0, ruleSuffix);
  
          String bindingPath = bindingPrefix + "ruleEditors[" + rule.getKey() + "].";
          this.setPropertyBindingPaths(group, bindingPath);
  
          return group;
      }
  
      protected void setPropertyBindingPaths(Group group, String bindingPath) {
  
          List<DataField> dataFields = ViewLifecycleUtils.getElementsOfTypeDeep(group.getItems(), DataField.class);
          for (DataField collectionField : dataFields) {
              collectionField.getBindingInfo().setBindingName(bindingPath + collectionField.getBindingInfo().getBindingName());
          }
  
          List<TreeGroup> treeFields = ViewLifecycleUtils.getElementsOfTypeDeep(group.getItems(), TreeGroup.class);
         for (TreeGroup collectionField : treeFields) {
             collectionField.getBindingInfo().setBindingName(bindingPath + collectionField.getBindingInfo().getBindingName());
         }
     }
 
     public RuleViewHelperService getViewHelperService() {
         return viewHelperService;
     }
 
     public void setViewHelperService(RuleViewHelperService viewHelperService) {
         this.viewHelperService = viewHelperService;
     }
 }