/*

  * Copyright 2006-2011 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.lang.StringUtils;

 import org.kuali.rice.core.api.component.Component;

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

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

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

 import org.kuali.rice.kns.datadictionary.DataDictionaryException;

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

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

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

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

 import org.kuali.rice.kns.service.KNSServiceLocatorWeb;

 import java.util.List;

 import java.util.regex.Pattern;

 import java.util.regex.PatternSyntaxException;

 public class ComponentLookupableHelperServiceImpl extends KualiLookupableHelperServiceImpl {

     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";

     private ParameterService parameterService;

     @Override

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

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

         // all step beans

         // all BO beans

         // all trans doc beans

         List<Component> components;

         try {

                 components = KNSServiceLocatorWeb.getRiceApplicationConfigurationMediationService().getNonDatabaseComponents();

         }

         catch (DataDictionaryException ex) {

             throw new RuntimeException("Problem parsing data dictionary during full load required for lookup to function: " + ex.getMessage(), ex);

         }

         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);

                 }

             }

             for (Component pdt : components) {

                 boolean includeType = true;

                 if (detailTypeRegex != null) {

                     includeType = detailTypeRegex.matcher(pdt.getCode().toUpperCase()).matches();

                 }

                 if (includeType && namespaceRegex != null) {

                     includeType = namespaceRegex.matcher(pdt.getNamespaceCode().toUpperCase()).matches();

                 }

                 if (includeType && nameRegex != null) {

                     includeType = nameRegex.matcher(pdt.getName().toUpperCase()).matches();

                 }

                 if (includeType) {

                     if (totalCount < maxResultsCount) {

                         baseLookup.add(ComponentBo.from(pdt));

                     }

                     totalCount++;

                 }

             }

             if (totalCount > maxResultsCount) {

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

             }

             else {

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

             }

         }

         return baseLookup;

     }

     /**

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

      * 

      * @see org.kuali.rice.kns.lookup.AbstractLookupableHelperServiceImpl#getCustomActionUrls(org.kuali.rice.kns.bo.BusinessObject, java.util.List)

      */

     @Override

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

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

             return super.getEmptyActionUrls();

         }

         return super.getCustomActionUrls(businessObject, pkNames);

     }

     public void setParameterService(ParameterService parameterService) {

         this.parameterService = parameterService;

     }

 }