/**
    * Copyright 2005-2011 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.kew.document;
  
  import java.util.Collections;
  import java.util.List;
  import java.util.Map;
  
  import org.kuali.rice.core.api.exception.RiceRuntimeException;
  import org.kuali.rice.kew.api.KEWPropertyConstants;
  import org.kuali.rice.kew.rule.RuleBaseValues;
  import org.kuali.rice.kew.rule.RuleResponsibilityBo;
  import org.kuali.rice.kew.rule.bo.RuleTemplateBo;
  import org.kuali.rice.kew.rule.web.WebRuleUtils;
  import org.kuali.rice.kew.service.KEWServiceLocator;
  import org.kuali.rice.kns.maintenance.KualiMaintainableImpl;
  import org.kuali.rice.kns.web.ui.Section;
  import org.kuali.rice.krad.bo.PersistableBusinessObject;
  import org.kuali.rice.kns.document.MaintenanceDocument;
  import org.kuali.rice.krad.document.MaintenanceLock;
  import org.kuali.rice.kns.maintenance.Maintainable;
  
  /**
   * This class is the maintainable implementation for Routing Rules 
   * in KEW (represented by the {@link RuleBaseValues} business object). 
   * 
   * @author Kuali Rice Team (rice.collab@kuali.org)
   *
   */
  public class RoutingRuleMaintainable extends KualiMaintainableImpl {
  
  	private static final long serialVersionUID = -5920808902137192662L;
      
  	/**
  	 * Override the getSections method on this maintainable so that the Section Containing the various Rule Attributes
  	 * can be dynamically generated based on the RuleTemplate which is selected.
  	 */
  	@Override
  	public List getSections(MaintenanceDocument document, Maintainable oldMaintainable) {
  		List<Section> sections = super.getSections(document, oldMaintainable);
  		return WebRuleUtils.customizeSections(getThisRule(), sections, false);
  		
  	}
  	
  	/**
  	 * On creation of a new rule document, we must validate that a rule template and document type are set. 
  	 */
  	@Override
  	public void processAfterNew(MaintenanceDocument document,
  			Map<String, String[]> parameters) {
  		WebRuleUtils.validateRuleTemplateAndDocumentType(getOldRule(document), getNewRule(document), parameters);
  		WebRuleUtils.establishDefaultRuleValues(getNewRule(document));
  		getNewRule(document).setDocumentId(document.getDocumentHeader().getDocumentNumber());
  	}
  	
  	/**
  	 * This is a hack to get around the fact that when a document is first created, this value is
   	 * true which causes issues if you want to be able to initialize fields on  the document using
   	 * request parameters.  See SectionBridge.toSection for the "if" block where it populates
   	 * Field.propertyValue to see why this causes problems
  	 */
  	@Override
  	public void setGenerateBlankRequiredValues(String docTypeName) {		
  		
  	}
  			
      /**
       * A complete override of the implementation for saving a Rule
       */
      @Override
      public void saveBusinessObject() {
      	WebRuleUtils.clearKeysForSave(getThisRule());
      	WebRuleUtils.translateResponsibilitiesForSave(getThisRule());
      	WebRuleUtils.translateFieldValuesForSave(getThisRule());
      	KEWServiceLocator.getRuleService().makeCurrent(getThisRule(), true);
      }
  
      /**
       * A complete override of the implementation for saving a Rule
       */
      @Override
      public void saveDataObject() {
      	WebRuleUtils.clearKeysForSave(getThisRule());
      	WebRuleUtils.translateResponsibilitiesForSave(getThisRule());
      	WebRuleUtils.translateFieldValuesForSave(getThisRule());
      	KEWServiceLocator.getRuleService().makeCurrent(getThisRule(), true);
     }
     
     @Override
     public void processAfterCopy(MaintenanceDocument document, Map<String, String[]> parameters) {
     	WebRuleUtils.processRuleForCopy(document.getDocumentNumber(), getOldRule(document), getNewRule(document));
         super.processAfterCopy(document, parameters);
     }
     
 	@Override
 	public void processAfterEdit(MaintenanceDocument document,
 			Map<String, String[]> parameters) {
 		if (!getOldRule(document).getCurrentInd()) {
 			throw new RiceRuntimeException("Cannot edit a non-current version of a rule.");
 		}
 		WebRuleUtils.populateForCopyOrEdit(getOldRule(document), getNewRule(document));
 		
 		getNewRule(document).setPreviousRuleId(getOldRule(document).getId());
 
 		getNewRule(document).setDocumentId(document.getDocumentHeader().getDocumentNumber());
 		super.processAfterEdit(document, parameters);
 	}
 
 	/**
 	 * Returns the new RuleBaseValues business object.
 	 */
 	protected RuleBaseValues getNewRule(MaintenanceDocument document) {
 		return (RuleBaseValues)document.getNewMaintainableObject().getBusinessObject();
 	}
 	
 	/**
 	 * Returns the old RuleBaseValues business object.
 	 */
 	protected RuleBaseValues getOldRule(MaintenanceDocument document) {
 		return (RuleBaseValues)document.getOldMaintainableObject().getBusinessObject();
 	}
 	
 	/**
 	 * Returns the RuleBaseValues business object associated with this Maintainable.
 	 */
 	protected RuleBaseValues getThisRule() {
 		return (RuleBaseValues)getBusinessObject();
 	}
 
 	/**
 	 * Overridden implementation of maintenance locks.  The default locking for Routing Rules
 	 * is based on previous version (can't route more than one rule based off the same 
 	 * previous verison).  However, for the first version of a rule, the previous version id
 	 * will be null.
 	 * 
 	 * So for a new Route Rule maintenance document we don't want any locks generated.
 	 * 
 	 * TODO can we just let the locking key be the primary key? (ruleBaseValuesId)
 	 */
 	@Override
 	public List<MaintenanceLock> generateMaintenanceLocks() {
 		if (getThisRule().getPreviousRuleId() == null) {
 			return Collections.emptyList();
 		}
 		return super.generateMaintenanceLocks();
 	}
 
 	@Override
 	public String getDocumentTitle(MaintenanceDocument document) {
 		StringBuffer title = new StringBuffer();
         RuleBaseValues rule = getThisRule();
         if (rule.getPreviousRuleId() != null) {
             title.append("Editing Rule '").append(rule.getDescription()).append("'");
         } else {
             title.append("Adding Rule '").append(rule.getDescription()).append("'");
         }
         return title.toString();
 	}
 
 	/**
 	 * This overridden method ...
 	 *
 	 * @see org.kuali.rice.krad.maintenance.KualiMaintainableImpl#prepareForSave()
 	 */
 	@Override
 	public void prepareForSave() {
 		super.prepareForSave();
 		WebRuleUtils.translateResponsibilitiesForSave(getThisRule());
 	}
 
     /**
 	 * @see org.kuali.rice.krad.maintenance.KualiMaintainableImpl#setNewCollectionLineDefaultValues(java.lang.String, org.kuali.rice.krad.bo.PersistableBusinessObject)
 	 */
 	@Override
 	protected void setNewCollectionLineDefaultValues(String collectionName,
 			PersistableBusinessObject addLine) {
 		super.setNewCollectionLineDefaultValues(collectionName, addLine);
 		if (KEWPropertyConstants.RESP_SECTION_NAME_SET.contains(collectionName)) {
 			RuleTemplateBo ruleTemplate = getThisRule().getRuleTemplate();
             //if (ruleTemplate == null && getThisRule().getRuleTemplateId() != null) {
             //    ruleTemplate = KEWServiceLocator.getRuleTemplateService().findByRuleTemplateId(getThisRule().getRuleTemplateId());
             //}
 			if(ruleTemplate.getDefaultActionRequestValue() != null && ruleTemplate.getDefaultActionRequestValue().getValue() != null){
 				((RuleResponsibilityBo) addLine).setActionRequestedCd(ruleTemplate.getDefaultActionRequestValue().getValue());
 	        }
 		}
 	}
 	
 }