/*
    * Copyright 2006-2012 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.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.docsearch;
  
  import org.apache.cxf.common.util.StringUtils;
  import org.junit.Test;
  import org.kuali.rice.core.api.uif.RemotableAttributeError;
  import org.kuali.rice.core.api.uif.RemotableAttributeField;
  import org.kuali.rice.kew.api.KewApiServiceLocator;
  import org.kuali.rice.kew.api.WorkflowDocument;
  import org.kuali.rice.kew.api.WorkflowDocumentFactory;
  import org.kuali.rice.kew.api.document.DocumentStatus;
  import org.kuali.rice.kew.api.document.DocumentWithContent;
  import org.kuali.rice.kew.api.document.attribute.DocumentAttribute;
  import org.kuali.rice.kew.api.document.attribute.DocumentAttributeDataType;
  import org.kuali.rice.kew.api.document.attribute.DocumentAttributeFactory;
  import org.kuali.rice.kew.api.document.attribute.WorkflowAttributeDefinition;
  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.api.extension.ExtensionDefinition;
  import org.kuali.rice.kew.doctype.bo.DocumentType;
  import org.kuali.rice.kew.framework.document.attribute.SearchableAttribute;
  import org.kuali.rice.kew.framework.document.search.DocumentSearchCustomizerBase;
  import org.kuali.rice.kew.framework.document.search.DocumentSearchResultValue;
  import org.kuali.rice.kew.framework.document.search.DocumentSearchResultValues;
  import org.kuali.rice.kew.service.KEWServiceLocator;
  import org.kuali.rice.kew.test.KEWTestCase;
  
  import java.util.ArrayList;
  import java.util.Collections;
  import java.util.List;
  
  import static org.junit.Assert.*;
  
  /**
   * An integration test for the DocumentSearchCustomizer class.  Includes tests on various aspects of the customzations
   * that class provides, attempting to use the high-level document search apis to exercise it.
   *
   * @author Kuali Rice Team (rice.collab@kuali.org)
   */
  public class DocumentSearchCustomizerTest extends KEWTestCase {
  
      @Override
  	protected void loadTestData() throws Exception {
      	loadXmlFile("DocumentSearchCustomizerTest.xml");
      }
  
      @Test
      public void testCustomizeCriteria() throws Exception {
  
          String ewestfal = getPrincipalIdForName("ewestfal");
          DocumentSearchCriteria.Builder builder = DocumentSearchCriteria.Builder.create();
  
          // first check a full doc search, should return no results
          DocumentSearchResults results = KewApiServiceLocator.getWorkflowDocumentService().documentSearch(ewestfal, builder.build());
          assertTrue(results.getSearchResults().isEmpty());
          assertFalse(results.getCriteria().getDocumentStatuses().contains(DocumentStatus.FINAL));
  
          // now check a document search against the "DocumentSearchCustomizerTest" document type, it is configured with the
          // CustomizeCriteria customizer
          builder.setDocumentTypeName("DocumentSearchCustomizerTest");
  
          results = KewApiServiceLocator.getWorkflowDocumentService().documentSearch(ewestfal, builder.build());
          assertTrue(results.getSearchResults().isEmpty());
          DocumentSearchCriteria resultCriteria = results.getCriteria();
          assertTrue("Document Statuses should have contained FINAL, instead contains: " + resultCriteria
                  .getDocumentStatuses(), resultCriteria.getDocumentStatuses().contains(DocumentStatus.FINAL));
  
          // now route an instance of the CustomizeCriteria document type to FINAL
          WorkflowDocument document = WorkflowDocumentFactory.createDocument(getPrincipalIdForName("ewestfal"),
                  "DocumentSearchCustomizerTest");
          document.route("");
          assertTrue(document.isFinal());
  
          // now run another search, we should get back one result this time
          results = KewApiServiceLocator.getWorkflowDocumentService().documentSearch(ewestfal, builder.build());
          assertEquals(1, results.getSearchResults().size());
          assertEquals(document.getDocumentId(), results.getSearchResults().get(0).getDocument().getDocumentId());
      }
  
      @Test
      public void testCustomizeClearCriteria() throws Exception {
  
          // grab a couple of document types, the first is the TestDocumentType which has no DocumentSearchCustomizer
         // configured on it, the second in our Document Type for this integration test which is configured with the
         // Customizer
 
         DocumentType testDocumentType = KEWServiceLocator.getDocumentTypeService().findByName("TestDocumentType");
         assertNotNull(testDocumentType);
         DocumentType customizedDocumentType = KEWServiceLocator.getDocumentTypeService().findByName("DocumentSearchCustomizerTest");
         assertNotNull(customizedDocumentType);
 
         // first set document id and application document id on a criteria and clear it using the TestDocumentType, it
         // should clear out both
 
         DocumentSearchCriteria.Builder builder = DocumentSearchCriteria.Builder.create();
         builder.setDocumentId("12345");
         builder.setApplicationDocumentId("54321");
         DocumentSearchCriteria clearedCriteria = KEWServiceLocator.getDocumentSearchService().clearCriteria(testDocumentType, builder.build());
         assertNull(clearedCriteria.getDocumentId());
         assertNull(clearedCriteria.getApplicationDocumentId());
 
         // now clear the same criteria with the customized document type, it should clear out the document id but
         // preserve the application document id
 
         clearedCriteria = KEWServiceLocator.getDocumentSearchService().clearCriteria(customizedDocumentType, builder.build());
         assertNull(clearedCriteria.getDocumentId());
         assertEquals("54321", clearedCriteria.getApplicationDocumentId());
     }
 
     @Test
     public void testCustomizeResults() throws Exception {
 
         // route an instance of the CustomizeCriteria document type to FINAL
 
         String ewestfal = getPrincipalIdForName("ewestfal");
         WorkflowDocument document = WorkflowDocumentFactory.createDocument(getPrincipalIdForName("ewestfal"),
                 "DocumentSearchCustomizerTest");
         document.route("");
         assertTrue(document.isFinal());
 
         // check that the document attributes get indexed properly
 
         List<String> attributeValues = KewApiServiceLocator.getWorkflowDocumentService().getSearchableAttributeStringValuesByKey(document.getDocumentId(), "myAttribute");
         assertEquals(1, attributeValues.size());
         assertEquals("myValue", attributeValues.get(0));
         attributeValues = KewApiServiceLocator.getWorkflowDocumentService().getSearchableAttributeStringValuesByKey(document.getDocumentId(), "myMultiValuedAttribute");
         assertEquals(2, attributeValues.size());
         assertTrue(attributeValues.contains("value1"));
         assertTrue(attributeValues.contains("value2"));
 
         DocumentSearchCriteria.Builder builder = DocumentSearchCriteria.Builder.create();
         DocumentSearchResults results = KewApiServiceLocator.getWorkflowDocumentService().documentSearch(ewestfal, builder.build());
         assertEquals(1, results.getSearchResults().size());
         DocumentSearchResult result = results.getSearchResults().get(0);
 
         // TODO - the below assertions really should work, but they currently don't.  Currently, unless you pass the
         // specific document type as one of the criteria the document attributes are not returned with the search
         // There should at least be an option on the search api to enable the returning of document attributes from
         // the search API - see https://jira.kuali.org/browse/KULRICE-6764
         /*assertEquals(1, result.getDocumentAttributes().size());
         DocumentAttribute attribute = result.getDocumentAttributes().get(0);
         assertEquals("myAttribute", attribute.getName());
         assertEquals("myValue", attribute.getValue());
         assertEquals(DocumentAttributeDataType.STRING, attribute.getDataType());*/
 
         // now do a document search targeting the specific customizer document type, the result should be customized
         // and the "myAttribute" attribute should have a customized value of "myCustomizedValue", also the
         // "myMultiValuedAttribute" should now only have a single value of "value0"
         
         builder.setDocumentTypeName("DocumentSearchCustomizerTest");
         results = KewApiServiceLocator.getWorkflowDocumentService().documentSearch(ewestfal, builder.build());
         assertEquals(1, results.getSearchResults().size());
         result = results.getSearchResults().get(0);
         assertEquals(3, result.getDocumentAttributes().size());
         for (DocumentAttribute attribute : result.getDocumentAttributes()) {
             if (attribute.getName().equals("myAttribute")) {
                 assertEquals("myAttribute", attribute.getName());
                 assertEquals("myCustomizedValue", attribute.getValue());
                 assertEquals(DocumentAttributeDataType.STRING, attribute.getDataType());
             } else if (attribute.getName().equals("myMultiValuedAttribute")) {
                 assertEquals("myMultiValuedAttribute", attribute.getName());
                 assertEquals("value0", attribute.getValue());
                 assertEquals(DocumentAttributeDataType.STRING, attribute.getDataType());
             } else if (attribute.getName().equals("criteriaUserId")) {
                 assertEquals("criteriaUserId", attribute.getName());
                 assertEquals(ewestfal, attribute.getValue());
             }else {
                 fail("Encountered an attribute name which i didn't understand: " + attribute.getName());
             }
         }
     }
 
     /**
      * An implementation of a DocumentSearchCustomizer which does some simple customizations to allow us to test that
      * the customizer is functioning properly.
      */
     public static final class Customizer extends DocumentSearchCustomizerBase {
 
         @Override
         public DocumentSearchCriteria customizeCriteria(DocumentSearchCriteria documentSearchCriteria) {
             DocumentSearchCriteria.Builder builder = DocumentSearchCriteria.Builder.create(documentSearchCriteria);
             builder.setDocumentStatuses(Collections.singletonList(DocumentStatus.FINAL));
             return builder.build();
         }
         @Override
         public boolean isCustomizeCriteriaEnabled(String documentTypeName) {
             return true;
         }
 
         @Override
         public DocumentSearchCriteria customizeClearCriteria(DocumentSearchCriteria documentSearchCriteria) {
             // preserver applicationDocumentId on clear, but clear out everything else
             DocumentSearchCriteria.Builder builder = DocumentSearchCriteria.Builder.create();
             builder.setApplicationDocumentId(documentSearchCriteria.getApplicationDocumentId());
             return builder.build();
         }
         @Override
         public boolean isCustomizeClearCriteriaEnabled(String documentTypeName) {
             return true;
         }
 
         @Override
         public DocumentSearchResultValues customizeResults(DocumentSearchCriteria documentSearchCriteria,
                 List<DocumentSearchResult> defaultResults) {
             if (defaultResults.size() == 1) {
                 assertEquals(1, defaultResults.size());
                 DocumentSearchResultValues.Builder valuesBuilder = DocumentSearchResultValues.Builder.create();
 
                 DocumentSearchResultValue.Builder resultValueBuilder = DocumentSearchResultValue.Builder.create(defaultResults.get(0).getDocument().getDocumentId());
                 resultValueBuilder.getDocumentAttributes().add(DocumentAttributeFactory.loadContractIntoBuilder(DocumentAttributeFactory.createStringAttribute("myAttribute", "myCustomizedValue")));
                 resultValueBuilder.getDocumentAttributes().add(DocumentAttributeFactory.loadContractIntoBuilder(DocumentAttributeFactory.createStringAttribute("myMultiValuedAttribute", "value0")));
 
                 // Return if principal id was foudn in criteria
                 if(!StringUtils.isEmpty(documentSearchCriteria.getDocSearchUserId())) {
                      resultValueBuilder.getDocumentAttributes().add(DocumentAttributeFactory.loadContractIntoBuilder(DocumentAttributeFactory.createStringAttribute("criteriaUserId", documentSearchCriteria.getDocSearchUserId())));
                 }
 
                 valuesBuilder.getResultValues().add(resultValueBuilder);
                 return valuesBuilder.build();
             } else {
                 return null;
             }
         }
         @Override
         public boolean isCustomizeResultsEnabled(String documentTypeName) {
             return true;
         }
         
     }
 
     public static final class CustomSearchAttribute implements SearchableAttribute {
         @Override
         public String generateSearchContent(ExtensionDefinition extensionDefinition,
                 String documentTypeName,
                 WorkflowAttributeDefinition attributeDefinition) {
             return null;
         }
         @Override
         public List<DocumentAttribute> extractDocumentAttributes(ExtensionDefinition extensionDefinition,
                 DocumentWithContent documentWithContent) {
             List<DocumentAttribute> attributes = new ArrayList<DocumentAttribute>();
             attributes.add(DocumentAttributeFactory.createStringAttribute("myAttribute", "myValue"));
             attributes.add(DocumentAttributeFactory.createStringAttribute("myMultiValuedAttribute", "value1"));
             attributes.add(DocumentAttributeFactory.createStringAttribute("myMultiValuedAttribute", "value2"));
             attributes.add(DocumentAttributeFactory.createStringAttribute("criteriaUserId", "blank"));
             return attributes;
         }
         @Override
         public List<RemotableAttributeField> getSearchFields(ExtensionDefinition extensionDefinition,
                 String documentTypeName) {
             List<RemotableAttributeField> searchFields = new ArrayList<RemotableAttributeField>();
             RemotableAttributeField.Builder builder = RemotableAttributeField.Builder.create("myAttribute");
             searchFields.add(builder.build());
             builder = RemotableAttributeField.Builder.create("myMultiValuedAttribute");
             searchFields.add(builder.build());
             builder = RemotableAttributeField.Builder.create("criteriaUserId");
             searchFields.add(builder.build());
             return searchFields;
         }
         @Override
         public List<RemotableAttributeError> validateDocumentAttributeCriteria(ExtensionDefinition extensionDefinition,
                 DocumentSearchCriteria documentSearchCriteria) {
             return null;
         }
     }
 
 }