/*

  * 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.kew.bo.lookup;

 import org.apache.commons.beanutils.PropertyUtils;

 import org.apache.commons.lang.StringUtils;

 import org.kuali.rice.core.api.datetime.DateTimeService;

 import org.kuali.rice.core.api.config.property.ConfigContext;

 import org.kuali.rice.core.web.format.BooleanFormatter;

 import org.kuali.rice.core.web.format.CollectionFormatter;

 import org.kuali.rice.core.web.format.DateFormatter;

 import org.kuali.rice.core.web.format.Formatter;

 import org.kuali.rice.kew.docsearch.DocSearchCriteriaDTO;

 import org.kuali.rice.kew.docsearch.DocumentLookupCriteriaProcessor;

 import org.kuali.rice.kew.docsearch.DocumentLookupCriteriaProcessorKEWAdapter;

 import org.kuali.rice.kew.docsearch.DocumentSearchResult;

 import org.kuali.rice.kew.docsearch.DocumentSearchResultComponents;

 import org.kuali.rice.kew.docsearch.StandardDocumentSearchCriteriaProcessor;

 import org.kuali.rice.kew.doctype.bo.DocumentType;

 import org.kuali.rice.kew.routeheader.DocumentRouteHeaderValue;

 import org.kuali.rice.kew.service.KEWServiceLocator;

 import org.kuali.rice.kew.util.KEWConstants;

 import org.kuali.rice.kew.util.KEWPropertyConstants;

 import org.kuali.rice.kew.web.KeyValueSort;

 import org.kuali.rice.kim.bo.Person;

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

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

 import org.kuali.rice.kns.web.comparator.CellComparatorHelper;

 import org.kuali.rice.kns.web.struts.form.LookupForm;

 import org.kuali.rice.kns.web.ui.Column;

 import org.kuali.rice.kns.web.ui.Field;

 import org.kuali.rice.kns.web.ui.ResultRow;

 import org.kuali.rice.kns.web.ui.Row;

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

 import org.kuali.rice.krad.util.GlobalVariables;

 import org.kuali.rice.krad.util.KRADConstants;

 import java.lang.reflect.InvocationTargetException;

 import java.sql.Date;

 import java.util.ArrayList;

 import java.util.Collection;

 import java.util.HashMap;

 import java.util.List;

 import java.util.Map;

 /**

  * This is a description of what this class does - chris don't forget to fill this in.

  *

  * @author Kuali Rice Team (rice.collab@kuali.org)

  *

  */

 public class DocumentRouteHeaderValueLookupableHelperServiceImpl extends KualiLookupableHelperServiceImpl {

         private static final long serialVersionUID = -5162419674659967408L;

         DateTimeService dateTimeService;

         DocumentLookupCriteriaProcessor processor;

         /**

          * This overridden method ...

          *

          * @see org.kuali.rice.kew.bo.lookup.DocumentRouteHeaderValueLookupableHelperService#setDateTimeService(org.kuali.rice.core.api.datetime.DateTimeService)

          */

         public void setDateTimeService(DateTimeService dateTimeService) {

                 this.dateTimeService = dateTimeService;

         }

         /**

          * This overridden method ...

          *

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

          */

         @Override

         public List<HtmlData> getCustomActionUrls(BusinessObject businessObject,

                         List pkNames) {

                 // TODO chris - THIS METHOD NEEDS JAVADOCS

                 return super.getCustomActionUrls(businessObject, pkNames);

         }

         /**

          * This overridden method ...

          *

          * @see org.kuali.rice.krad.lookup.AbstractLookupableHelperServiceImpl#performLookup(org.kuali.rice.krad.web.struts.form.LookupForm, java.util.Collection, boolean)

          */

         @Override

         public Collection performLookup(LookupForm lookupForm,

                         Collection resultTable, boolean bounded) {

                 //TODO: KNS updates to make this not require code from the parent

             Map<String,String> fieldsForLookup = lookupForm.getFieldsForLookup();

             DocSearchCriteriaDTO criteria = constructCriteria(fieldsForLookup);

             //TODO: move this into actual adapter as well

             Collection displayList=null;

             DocumentSearchResultComponents components = KEWServiceLocator.getDocumentSearchService().getList(GlobalVariables.getUserSession().getPrincipalId(), criteria);

             List<DocumentSearchResult> result = components.getSearchResults();

 //            for (DocumentSearchResult documentSearchResult : result) {

                         displayList = result;//.getResultContainers();

 //                }

                 //####BEGIN COPIED CODE#########

         setBackLocation((String) lookupForm.getFieldsForLookup().get(KRADConstants.BACK_LOCATION));

         setDocFormKey((String) lookupForm.getFieldsForLookup().get(KRADConstants.DOC_FORM_KEY));

 //###COMENTED OUT

 //                  Collection displayList;

 //        // call search method to get results

 //        if (bounded) {

 //            displayList = getSearchResults(lookupForm.getFieldsForLookup());

 //        }

 //        else {

 //            displayList = getSearchResultsUnbounded(lookupForm.getFieldsForLookup());

 //        }

 //##COMENTED OUT

         HashMap<String,Class> propertyTypes = new HashMap<String, Class>();

         boolean hasReturnableRow = false;

         List returnKeys = getReturnKeys();

         List pkNames = getBusinessObjectMetaDataService().listPrimaryKeyFieldNames(getBusinessObjectClass());

         Person user = GlobalVariables.getUserSession().getPerson();

         // iterate through result list and wrap rows with return url and action urls

 //COMMENTING THIS OUT FOR NOW

 //        for (Iterator iter = displayList.iterator(); iter.hasNext();) {

 //            BusinessObject element = (BusinessObject) iter.next();

 //                if(element instanceof PersistableBusinessObject){

 //                lookupForm.setLookupObjectId(((PersistableBusinessObject)element).getObjectId());

 //            }

 //                BusinessObject element = null;

 //                BusinessObjectRestrictions businessObjectRestrictions = getBusinessObjectAuthorizationService().getLookupResultRestrictions(element, user);

 //            HtmlData returnUrl = getReturnUrl(element, lookupForm, returnKeys, businessObjectRestrictions);

 //          String actionUrls = getActionUrls(element, pkNames, businessObjectRestrictions);

 //ADDED (4 lines)

         for (DocumentSearchResult aResult : result)

         {

             //TODO: where to get these from?

             HtmlData returnUrl = new HtmlData.AnchorHtmlData();

             String actionUrls = "";

 //TODO: convert columns either here or in the getColumns method

 //ADDED (3)

             List<? extends Column> columns = components.getColumns();//getColumns();

             List<KeyValueSort> keyValues = aResult.getResultContainers();

             for (int i = 0; i < columns.size(); i++)

             {

 //            for (Iterator iterator = columns.iterator(); iterator.hasNext();) {

 //                Column col = (Column) iterator.next();

 //ADDED 3

                 Column col = (Column) columns.get(i);

                 KeyValueSort keyValue = keyValues.get(i);

 //Set values from keyvalue on column

                 col.setPropertyValue(keyValue.getUserDisplayValue());

                 Formatter formatter = col.getFormatter();

                 // pick off result column from result list, do formatting

                 String propValue = KRADConstants.EMPTY_STRING;

 //                Object prop = ObjectUtils.getPropertyValue(element, col.getPropertyName());

 //ADDED

                 Object prop = col.getPropertyValue();

                 // set comparator and formatter based on property type

                 Class propClass = propertyTypes.get(col.getPropertyName());

                 if (propClass == null)

                 {

                     try

                     {

 //                            propClass = ObjectUtils.getPropertyType( element, col.getPropertyName(), getPersistenceStructureService() );

 //                            propertyTypes.put( col.getPropertyName(), propClass );

                     } catch (Exception e)

                     {

 //                        throw new RuntimeException("Cannot access PropertyType for property " + "'" + col.getPropertyName() + "' " + " on an instance of '" + element.getClass().getName() + "'.", e);

                     }

                 }

                 // formatters

                 if (prop != null)

                 {

                     // for Booleans, always use BooleanFormatter

                     if (prop instanceof Boolean)

                     {

                         formatter = new BooleanFormatter();

                     }

                     // for Dates, always use DateFormatter

                     if (prop instanceof Date)

                     {

                         formatter = new DateFormatter();

                     }

                     // for collection, use the list formatter if a formatter hasn't been defined yet

                     if (prop instanceof Collection && formatter == null)

                     {

                         formatter = new CollectionFormatter();

                     }

                     if (formatter != null)

                     {

                         propValue = (String) formatter.format(prop);

                     } else

                     {

                         propValue = prop.toString();

                     }

                 }

                 // comparator

                 col.setComparator(CellComparatorHelper.getAppropriateComparatorForPropertyClass(propClass));

                 col.setValueComparator(CellComparatorHelper.getAppropriateValueComparatorForPropertyClass(propClass));

 //                propValue = maskValueIfNecessary(element.getClass(), col.getPropertyName(), propValue, businessObjectRestrictions);

                 col.setPropertyValue(propValue);

                 if (StringUtils.isNotBlank(propValue))

                 {

 //                    col.setColumnAnchor(getInquiryUrl(element, col.getPropertyName()));

 //ADDED (3 lines)

                     HtmlData.AnchorHtmlData anchor = new HtmlData.AnchorHtmlData(KRADConstants.EMPTY_STRING, KRADConstants.EMPTY_STRING);

                     //TODO: change to grab URL from config variable

                     if (StringUtils.isNotEmpty(keyValue.getValue()) && StringUtils.equals("documentId", keyValue.getKey()))

                     {

                         anchor.setHref(StringUtils.substringBetween(keyValue.getValue(), "<a href=\"", "docId=") + "docId=" + keyValue.getUserDisplayValue());

                         col.setMaxLength(100); //for now force this

                     }

                     col.setColumnAnchor(anchor);

                 }

             }

             ResultRow row = new ResultRow((List<Column>) columns, returnUrl.constructCompleteHtmlTag(), actionUrls);

             row.setRowId(returnUrl.getName());

             // because of concerns of the BO being cached in session on the ResultRow,

             // let's only attach it when needed (currently in the case of export)

             if (getBusinessObjectDictionaryService().isExportable(getBusinessObjectClass()))

             {

 //                    row.setBusinessObject(element);

             }

 //            boolean rowReturnable = isResultReturnable(element);

 //ADDED

             boolean rowReturnable = true;

             row.setRowReturnable(rowReturnable);

             if (rowReturnable)

             {

                 hasReturnableRow = true;

             }

             resultTable.add(row);

         }

         lookupForm.setHasReturnableRow(hasReturnableRow);

         return displayList;

                 //####END COPIED CODE#########

         }

         /**

          * This method ...

          *

          * @param lookupForm

          * @return

          */

         private DocSearchCriteriaDTO constructCriteria(Map<String,String> fieldsForLookup) {

                 //TODO: move this into adapter

             DocSearchCriteriaDTO criteria = new DocSearchCriteriaDTO();

             Map<String,String> fieldsToSet = new HashMap<String,String>();

                 for (String formKey : fieldsForLookup.keySet()) {

                         if(!(formKey.equalsIgnoreCase(KRADConstants.BACK_LOCATION) ||

                            formKey.equalsIgnoreCase(KRADConstants.DOC_FORM_KEY)) && StringUtils.isNotEmpty(fieldsForLookup.get(formKey))) {

                                 fieldsToSet.put(formKey, fieldsForLookup.get(formKey));

                         }

                 }

                 //if we use DocSearchCriteriaDTO as object we shouldn't need this conversion stuff

             for (String fieldToSet : fieldsToSet.keySet()) {

                         //need translation code here for certain fields

                     String valueToSet = fieldsToSet.get(fieldToSet);

                         try {

                                 //TODO: temporary work around until is a criteria

                                 if(fieldToSet.equals("documentType.name")) {

                                         fieldToSet = "docTypeFullName";

                                 }

                                 PropertyUtils.setNestedProperty(criteria, fieldToSet, valueToSet);

                         } catch (IllegalAccessException e) {

                                 e.printStackTrace();

                         } catch (InvocationTargetException e) {

                                 e.printStackTrace();

                         } catch (NoSuchMethodException e) {

                                 e.printStackTrace();

                         }

                 }

                 return criteria;

         }

         /**

          * This overridden method ...

          *

          * @see org.kuali.rice.krad.lookup.AbstractLookupableHelperServiceImpl#getInquiryUrl(org.kuali.rice.krad.bo.BusinessObject, java.lang.String)

          */

         @Override

         public HtmlData getInquiryUrl(BusinessObject bo, String propertyName) {

                 //FIXME: ctk - make sure and check that it's ok to do this here.  I may move this out to the doc search processor

                 if(KEWPropertyConstants.DOC_SEARCH_RESULT_PROPERTY_NAME_DOCUMENT_ID.equals(propertyName)) {

                         HtmlData.AnchorHtmlData link = new HtmlData.AnchorHtmlData();

                         DocumentRouteHeaderValue doc = (DocumentRouteHeaderValue)bo;

                         //if !superuser

                         String documentId = doc.getDocumentId();

                         link.setDisplayText(documentId+"");

                         String href = ConfigContext.getCurrentContextConfig().getKRBaseURL()+"/"+

                         KEWConstants.DOC_HANDLER_REDIRECT_PAGE + "?" + KEWConstants.COMMAND_PARAMETER + "=" + 

                         KEWConstants.DOCSEARCH_COMMAND + "&" + KEWConstants.DOCUMENT_ID_PARAMETER + "=" + documentId;

                         link.setHref(href);

                         return link;

                 }

                 return super.getInquiryUrl(bo, propertyName);

         }

         /**

          * Call the criteria processor (either standard or custom) and massage the data into the proper format

      * this is called by setbo in super(which is called by form) so should be called when the page needs refreshing

          */

         @Override

         protected void setRows() {

                 super.setRows();

                 List<Row> lookupRows = new ArrayList<Row>(super.getRows());

                 //clear the default rows, we are going to rebuild them

                 super.getRows().clear();

         processor = new DocumentLookupCriteriaProcessorKEWAdapter();

                 //call get rows

                 List<Row> rows = processor.getRows(null, lookupRows, false, false);

                 super.getRows().addAll(rows);

         }

         /**

          * This overridden method allows for overriding what the clear logic does.

          *

          * @see org.kuali.rice.krad.lookup.AbstractLookupableHelperServiceImpl#performClear()

          */

         @Override

         public void performClear(LookupForm lookupForm) {

                 Map<String,String> fieldsToClear = new HashMap<String,String>();

                 for (Row row : this.getRows()) {

                         for (Field field : row.getFields()) {

                                 fieldsToClear.put(field.getPropertyName(), field.getPropertyValue());

                         }

                 }

                 //TODO: also check if standard here (maybe from object if use criteria)

                 if(this.processor==null) {

                         super.performClear(lookupForm);

                 } else {

                         DocSearchCriteriaDTO docCriteria = constructCriteria(fieldsToClear);

                         if(StringUtils.isNotEmpty("documentType.name")) {

                                 //TODO: move these strings to constants (probably after moving this to criteria

                                 getValidDocumentType(fieldsToClear.get("documentType.name")).getDocumentSearchGenerator().clearSearch(docCriteria);;

                         }

                 }

         }

         /**

          *

          * This method is taken from DocSearch to retrieve a document type

          *

          * @param docTypeName

          * @return

          */

     private static DocumentType getValidDocumentType(String docTypeName) {

         DocumentType documentType = KEWServiceLocator.getDocumentTypeService().findByName(docTypeName);

         if (documentType == null) {

             throw new RuntimeException("Document Type invalid : " + docTypeName);

         }

         return documentType;

     }

 }