/*
    * Copyright 2012 The Kuali Foundation.
    *
    * Licensed under the Educational Community License, Version 1.0 (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/ecl1.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.ole.select.document.service.impl;
  
  import org.apache.commons.lang.StringUtils;
  import org.kuali.ole.select.OleSelectConstant;
  import org.kuali.ole.select.businessobject.OleAcquisitionSearchResult;
  import org.kuali.ole.select.document.service.OleAcquisitionSearchService;
  import org.kuali.ole.select.lookup.DocData;
  import org.kuali.ole.select.service.impl.OleDocStoreSearchService;
  import org.kuali.ole.sys.context.SpringContext;
  import org.kuali.rice.core.api.util.RiceKeyConstants;
  import org.kuali.rice.kew.api.document.attribute.DocumentAttribute;
  import org.kuali.rice.kew.api.document.search.DocumentSearchCriteria;
  import org.kuali.rice.kew.api.document.search.DocumentSearchResult;
  import org.kuali.rice.kew.api.document.search.DocumentSearchResults;
  import org.kuali.rice.kew.exception.WorkflowServiceError;
  import org.kuali.rice.kew.exception.WorkflowServiceErrorException;
  import org.kuali.rice.kew.service.KEWServiceLocator;
  import org.kuali.rice.krad.util.GlobalVariables;
  
  import java.util.*;
  
  
  public class OleAcquisitionSearchServiceImpl implements OleAcquisitionSearchService {
      private static final org.apache.log4j.Logger LOG = org.apache.log4j.Logger.getLogger(OleAcquisitionSearchServiceImpl.class);
  
      /**
       * This method sets the docData details for searched results
       * by querying to the docStore
       *
       * @param documentSearchResults
       */
      protected Collection<DocData> getDocData(List<DocumentSearchResult> documentSearchResults) {
          List<Object> titleIds = new ArrayList<Object>();
          for (DocumentSearchResult documentSearchResult : documentSearchResults) {
              for (DocumentAttribute documentAttribute : documentSearchResult.getDocumentAttributes()) {
                  if (documentAttribute.getName().equalsIgnoreCase(OleSelectConstant.AcquisitionsSearch.ITEM_TITLE_ID) &&
                          documentAttribute.getValue() != null &&
                          StringUtils.isNotBlank(documentAttribute.getValue().toString())) {
                      titleIds.add(documentAttribute.getValue());
                  }
              }
          }
          if (!titleIds.isEmpty()) {
              try {
                  return SpringContext.getBean(OleDocStoreSearchService.class).getResult(DocData.class, "", titleIds);
              } catch (Exception ex) {
                  GlobalVariables.getMessageMap().putError(OleSelectConstant.AcquisitionsSearch.REQUISITIONS, "Error While connecting to DocStore",
                          new String[]{});
                  LOG.error("Exception access document store for lookup by titleIds: " + titleIds, ex);
              }
          }
          return Collections.emptyList();
      }
  
      /**
       * This method populates the criteria for the fields in the map
       * using searchable attributes
       *
       * @param criteria
       * @param propertyFields
       * @return criteria
       */
      private DocumentSearchCriteria addDocumentAttributesToCriteria(DocumentSearchCriteria.Builder criteria, Map<String, List<String>> propertyFields) {
          Map<String, List<String>> attributes = new HashMap<String, List<String>>();
          if (criteria != null) {
              if (!propertyFields.isEmpty()) {
                  for (String propertyField : propertyFields.keySet()) {
                      if (propertyFields.get(propertyField) != null) {
                          attributes.put(propertyField, propertyFields.get(propertyField));
                      }
                  }
              }
          }
          criteria.setDocumentAttributeValues(attributes);
          return criteria.build();
      }
  
      /**
       * return a string array of titleIds from a List of docdata class
       *
       * @param docDataList
       * @return titleId
       */
      @Override
     public List<String> getTitleIds(List<DocData> docDataList) {
         List<String> titleIds = new ArrayList<String>();
         int i = 0;
         for (DocData docData : docDataList) {
             if (StringUtils.isNotEmpty(docData.getUniqueId())) {
                 titleIds.add(docData.getUniqueId());
             }
         }
         //String[] titleId = titleIds.toArray(new String[titleIds.size()]);
         return titleIds;
     }
 
     /**
      * returns a collection of resultRow for the search type document
      * from the documentsearchresult components
      *
      * @param components
      * @return resultTable
      */
     private List<OleAcquisitionSearchResult> getFinalDocumentTypeResult(List<DocumentSearchResult> componentResults) {
         List<OleAcquisitionSearchResult> docResult = new ArrayList<OleAcquisitionSearchResult>();
         OleAcquisitionSearchResult acqSearchResult;
         if (!componentResults.isEmpty()) {
             for (DocumentSearchResult searchResult : componentResults) {
                 acqSearchResult = new OleAcquisitionSearchResult();
                 acqSearchResult.setResultDetails(false, searchResult, new ArrayList());
                 if (acqSearchResult != null) {
                     docResult.add(acqSearchResult);
                 }
             }
         }
         return docResult;
 
     }
 
     /**
      * This method filters other search criteria's based on create from/to date.
      *
      * @param fixedParameters Map containing created date search criteria.
      * @return Map containing document numbers of searched Results
      */
     @Override
     public List<OleAcquisitionSearchResult> performDocumentSearch(DocumentSearchCriteria docSearchCriteria, Map<String, List<String>> fixedParameters) {
         DocumentSearchCriteria docSearchCriteriaDTO = addDocumentAttributesToCriteria(DocumentSearchCriteria.Builder.create(docSearchCriteria), fixedParameters);
         LOG.debug("Inside filterWorkflowStatusDate of OleAcquisitionsSearchDocument");
         List result = new ArrayList();
         List<OleAcquisitionSearchResult> finalResult = new ArrayList<OleAcquisitionSearchResult>();
         DocumentSearchResults components = null;
         boolean isDateSpecified = true;
         try {
             components = KEWServiceLocator.getDocumentSearchService().lookupDocuments(GlobalVariables.getUserSession().getPrincipalId(),
                     docSearchCriteriaDTO);
 
             List<DocumentSearchResult> docSearchResults = components.getSearchResults();
             if (!fixedParameters.containsKey("displayType")) {
                 finalResult = getFinalDocumentTypeResult(docSearchResults);
             } else {
                 finalResult = getFinalBibTypeResult(docSearchResults);
             }
         } catch (WorkflowServiceErrorException wsee) {
             for (WorkflowServiceError workflowServiceError : (List<WorkflowServiceError>) wsee.getServiceErrors()) {
                 if (workflowServiceError.getMessageMap() != null && workflowServiceError.getMessageMap().hasErrors()) {
                     GlobalVariables.getMessageMap().merge(workflowServiceError.getMessageMap());
                 } else {
                     GlobalVariables.getMessageMap().putError(workflowServiceError.getMessage(), RiceKeyConstants.ERROR_CUSTOM,
                             workflowServiceError.getMessage());
                 }
             }
             ;
         }
         return finalResult;
     }
 
     /**
      * returns a collection of resultRow for the search type bib
      * from the documentsearchresult components
      *
      * @param components
      * @return resultTable
      */
     protected List<OleAcquisitionSearchResult> getFinalBibTypeResult(List<DocumentSearchResult> componentResults) {
         List<OleAcquisitionSearchResult> bibResult = new ArrayList<OleAcquisitionSearchResult>();
         List<DocData> docDatas = (List<DocData>) getDocData(componentResults);
         OleAcquisitionSearchResult acqSearchResult;
         if (!componentResults.isEmpty()) {
             for (DocumentSearchResult searchResult : componentResults) {
                 acqSearchResult = new OleAcquisitionSearchResult();
                 acqSearchResult.setResultDetails(true, searchResult, docDatas);
                 if (acqSearchResult != null) {
                     bibResult.add(acqSearchResult);
                 }
             }
         }
         return bibResult;
     }
 
 }