/**
    * Copyright 2012 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.osedu.org/licenses/ECL-2.0
    *
    * 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.enrollment.class2.courseoffering.service.impl;
  
  import org.apache.commons.lang.BooleanUtils;
  import org.apache.commons.lang.StringUtils;
  import org.kuali.rice.core.api.resourceloader.GlobalResourceLoader;
  import org.kuali.rice.core.api.util.RiceKeyConstants;
  import org.kuali.rice.krad.lookup.LookupableImpl;
  import org.kuali.rice.krad.util.GlobalVariables;
  import org.kuali.rice.krad.util.KRADConstants;
  import org.kuali.rice.krad.web.form.LookupForm;
  import org.kuali.student.enrollment.class2.courseoffering.dto.ActivityOfferingWrapper;
  import org.kuali.student.enrollment.class2.courseoffering.util.CourseOfferingResourceLoader;
  import org.kuali.student.enrollment.courseoffering.dto.ActivityOfferingInfo;
  import org.kuali.student.enrollment.courseoffering.service.CourseOfferingService;
  import org.kuali.student.r2.common.constants.CommonServiceConstants;
  import org.kuali.student.r2.common.util.ContextUtils;
  import org.kuali.student.r2.core.class1.search.CourseOfferingManagementSearchImpl;
  import org.kuali.student.r2.core.search.dto.SearchRequestInfo;
  import org.kuali.student.r2.core.search.dto.SearchResultCellInfo;
  import org.kuali.student.r2.core.search.dto.SearchResultInfo;
  import org.kuali.student.r2.core.search.service.SearchService;
  
  import javax.xml.namespace.QName;
  import java.util.ArrayList;
  import java.util.List;
  import java.util.Map;
  
  /**
   * This class provides a Lookupable implementation for Activity Offering Wrappers
   *
   * @author Kuali Student Team
   */
  public class ActivityOfferingWrapperLookupableImpl extends LookupableImpl {
  
      private SearchService searchService;
  
      @Override
      public boolean validateSearchParameters(LookupForm form, Map<String, String> searchCriteria){
          if (searchCriteria == null || searchCriteria.isEmpty() || StringUtils.isBlank(searchCriteria.get("termId")) || StringUtils.isBlank(searchCriteria.get("courseOfferingCode"))){
              GlobalVariables.getMessageMap().putError(KRADConstants.GLOBAL_ERRORS,RiceKeyConstants.ERROR_CUSTOM,"Missing Course Offering code and/or term Id");
              return false;
          }
          return true;
      }
  
      @Override
      protected List<?> getSearchResults(LookupForm lookupForm, Map<String, String> fieldValues, boolean unbounded) {
          List<ActivityOfferingWrapper> activityOfferingWrappers = new ArrayList<ActivityOfferingWrapper>();
  
          String termId = fieldValues.get("termId");
          String courseOfferingCode = fieldValues.get("courseOfferingCode");
  
          /**
           * Edit AO maintenace document uses this AO search to allow user to add colocated AOs.
           */
          if (StringUtils.isNotBlank(termId) && StringUtils.isNotBlank(courseOfferingCode)){
  
              SearchRequestInfo searchRequest = new SearchRequestInfo(CourseOfferingManagementSearchImpl.CO_MANAGEMENT_SEARCH.getKey());
              searchRequest.addParam(CourseOfferingManagementSearchImpl.SearchParameters.COURSE_CODE, StringUtils.upperCase(courseOfferingCode));
              searchRequest.addParam(CourseOfferingManagementSearchImpl.SearchParameters.ATP_ID, termId);
              searchRequest.addParam(CourseOfferingManagementSearchImpl.SearchParameters.IS_EXACT_MATCH_CO_CODE_SEARCH, BooleanUtils.toStringTrueFalse(true));
  
              try {
                  String coId = "";
                  SearchResultInfo searchResult = getSearchService().search(searchRequest, ContextUtils.createDefaultContextInfo());
  
                  if (searchResult.getRows().isEmpty()){
                      GlobalVariables.getMessageMap().putError(KRADConstants.GLOBAL_ERRORS, RiceKeyConstants.ERROR_CUSTOM,"Invalid CourseOfferingCode " + courseOfferingCode);
                  } else if (searchResult.getRows().size() > 1){
                      GlobalVariables.getMessageMap().putError(KRADConstants.GLOBAL_ERRORS, RiceKeyConstants.ERROR_CUSTOM,"Multiple CourseOfferings entries found for " + courseOfferingCode);
                  } else {
                      for(SearchResultCellInfo cellInfo : searchResult.getRows().get(0).getCells()){
  
                          if(CourseOfferingManagementSearchImpl.SearchResultColumns.CO_ID.equals(cellInfo.getKey())){
                              coId = cellInfo.getValue();
                              break;
                          }
  
                      }
                  }
  
                  if (StringUtils.isNotBlank(coId)){
                      List<ActivityOfferingInfo> aos = getCourseOfferingService().getActivityOfferingsByCourseOffering(coId,ContextUtils.createDefaultContextInfo());
                      for (ActivityOfferingInfo activityOffering : aos) {
                         CO_AO_RG_ViewHelperServiceImpl helper = new CO_AO_RG_ViewHelperServiceImpl();
                         ActivityOfferingWrapper wrapper = helper.convertAOInfoToWrapper(activityOffering);
                         wrapper.setCourseOfferingId(coId);
                         activityOfferingWrappers.add(wrapper);
                     }
                 }
 
             } catch (Exception e){
                 throw new RuntimeException(e);
             }
 
         }
 
         return activityOfferingWrappers;
     }
 
     public CourseOfferingService getCourseOfferingService() {
         return CourseOfferingResourceLoader.loadCourseOfferingService();
     }
 
     protected SearchService getSearchService() {
         if(searchService == null) {
             searchService = (SearchService) GlobalResourceLoader.getService(new QName(CommonServiceConstants.REF_OBJECT_URI_GLOBAL_PREFIX + "search", SearchService.class.getSimpleName()));
         }
         return searchService;
     }
 }