/**

  * 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.core.web.component;

 import org.apache.commons.collections.CollectionUtils;

 import org.apache.commons.lang.StringUtils;

 import org.kuali.rice.core.framework.parameter.ParameterService;

 import org.kuali.rice.core.impl.component.ComponentBo;

 import org.kuali.rice.core.impl.component.DerivedComponentBo;

 import org.kuali.rice.kns.lookup.HtmlData;

 import org.kuali.rice.kns.lookup.KualiLookupableHelperServiceImpl;

 import org.kuali.rice.krad.bo.BusinessObject;

 import org.kuali.rice.krad.lookup.CollectionIncomplete;

 import org.kuali.rice.krad.lookup.LookupUtils;

 import org.kuali.rice.krad.service.KRADServiceLocator;

 import java.util.Collection;

 import java.util.HashMap;

 import java.util.List;

 import java.util.Map;

 import java.util.regex.Pattern;

 import java.util.regex.PatternSyntaxException;

 public class ComponentLookupableHelperServiceImpl extends KualiLookupableHelperServiceImpl {

     private static final long serialVersionUID = -3978422770535345525L;

     private static final org.apache.log4j.Logger LOG = org.apache.log4j.Logger.getLogger(ComponentLookupableHelperServiceImpl.class);

     private static final String ACTIVE = "active";

     private static final String CODE = "code";

     private static final String NAMESPACE_CODE = "namespaceCode";

     private static final String NAME = "name";

     @Override

     public List<? extends BusinessObject> getSearchResults(java.util.Map<String, String> fieldValues) {

         List<BusinessObject> baseLookup = (List<BusinessObject>) super.getSearchResults(fieldValues);

         String activeCheck = fieldValues.get(ACTIVE);

         if (activeCheck == null) {

             activeCheck = "";

         }

         int maxResultsCount = LookupUtils.getSearchResultsLimit(ComponentBo.class);

         // only bother with the component lookup if returning active components

         if (baseLookup instanceof CollectionIncomplete && !activeCheck.equals("N")) {

             long originalCount = Math.max(baseLookup.size(), ((CollectionIncomplete) baseLookup).getActualSizeIfTruncated());

             long totalCount = originalCount;

             Pattern detailTypeRegex = null;

             Pattern namespaceRegex = null;

             Pattern nameRegex = null;

             if (StringUtils.isNotBlank(fieldValues.get(CODE))) {

                 String patternStr = fieldValues.get(CODE).replace("*", ".*").toUpperCase();

                 try {

                     detailTypeRegex = Pattern.compile(patternStr);

                 }

                 catch (PatternSyntaxException ex) {

                     LOG.error("Unable to parse code pattern, ignoring.", ex);

                 }

             }

             if (StringUtils.isNotBlank(fieldValues.get(NAMESPACE_CODE))) {

                 String patternStr = fieldValues.get(NAMESPACE_CODE).replace("*", ".*").toUpperCase();

                 try {

                     namespaceRegex = Pattern.compile(patternStr);

                 }

                 catch (PatternSyntaxException ex) {

                     LOG.error("Unable to parse namespaceCode pattern, ignoring.", ex);

                 }

             }

             if (StringUtils.isNotBlank(fieldValues.get(NAME))) {

                 String patternStr = fieldValues.get(NAME).replace("*", ".*").toUpperCase();

                 try {

                     nameRegex = Pattern.compile(patternStr);

                 }

                 catch (PatternSyntaxException ex) {

                     LOG.error("Unable to parse name pattern, ignoring.", ex);

                 }

             }

             // now search for derived components

             Map<String, Object> derivedComponentCriteria = new HashMap<String, Object>();

             if (fieldValues.containsKey(NAMESPACE_CODE) && StringUtils.isNotBlank(fieldValues.get(NAMESPACE_CODE))) {

                 derivedComponentCriteria.put(NAMESPACE_CODE, fieldValues.get(NAMESPACE_CODE));

             }

             if (fieldValues.containsKey(CODE) && StringUtils.isNotBlank(fieldValues.get(CODE))) {

                 derivedComponentCriteria.put(CODE, fieldValues.get(CODE));

             }

             if (fieldValues.containsKey(NAME) && StringUtils.isNotBlank(fieldValues.get(NAME))) {

                 derivedComponentCriteria.put(NAME, fieldValues.get(NAME));

             }

             Collection<DerivedComponentBo> derivedComponentBos = null;

             if (derivedComponentCriteria.isEmpty()) {

                 derivedComponentBos = KRADServiceLocator.getBusinessObjectService().findAll(DerivedComponentBo.class);

             } else {

                 derivedComponentBos = KRADServiceLocator.getBusinessObjectService().findMatching(DerivedComponentBo.class, derivedComponentCriteria);

             }

             if (CollectionUtils.isNotEmpty(derivedComponentBos)) {

                 for (DerivedComponentBo derivedComponentBo : derivedComponentBos) {

                     if (totalCount++ < maxResultsCount) {

                         baseLookup.add(DerivedComponentBo.toComponentBo(derivedComponentBo));

                     } else {

                         break;

                     }

                 }

             }

             if (totalCount > maxResultsCount) {

                 ((CollectionIncomplete) baseLookup).setActualSizeIfTruncated(totalCount);

             }

             else {

                 ((CollectionIncomplete) baseLookup).setActualSizeIfTruncated(0L);

             }

         }

         return baseLookup;

     }

     /**

      * Suppress the edit/copy links on synthetic detail types.

      */

     @Override

     public List<HtmlData> getCustomActionUrls(BusinessObject businessObject, List pkNames) {

         if ( ((ComponentBo)businessObject).getObjectId() == null ) {

             return super.getEmptyActionUrls();

         }

         return super.getCustomActionUrls(businessObject, pkNames);

     }

 }