/**
    * Copyright 2005-2012 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.location.impl.country;
  
  
  import org.apache.commons.lang.StringUtils;
  import org.kuali.rice.core.api.criteria.CriteriaLookupService;
  import org.kuali.rice.core.api.criteria.GenericQueryResults;
  import org.kuali.rice.core.api.criteria.QueryByCriteria;
  import org.kuali.rice.core.api.exception.RiceIllegalArgumentException;
  import org.kuali.rice.core.api.exception.RiceIllegalStateException;
  import org.kuali.rice.coreservice.framework.parameter.ParameterService;
  import org.kuali.rice.kns.service.KNSServiceLocator;
  import org.kuali.rice.kns.util.KNSConstants;
  import org.kuali.rice.krad.service.BusinessObjectService;
  import org.kuali.rice.krad.util.KRADConstants;
  import org.kuali.rice.krad.util.KRADPropertyConstants;
  import org.kuali.rice.location.api.campus.Campus;
  import org.kuali.rice.location.api.campus.CampusQueryResults;
  import org.kuali.rice.location.api.country.Country;
  import org.kuali.rice.location.api.country.CountryQueryResults;
  import org.kuali.rice.location.api.country.CountryService;
  import org.kuali.rice.location.impl.campus.CampusBo;
  
  import java.util.ArrayList;
  import java.util.Collection;
  import java.util.Collections;
  import java.util.HashMap;
  import java.util.List;
  import java.util.Map;
  
  public final class CountryServiceImpl implements CountryService {
  
      private BusinessObjectService businessObjectService;
      private ParameterService parameterService;
      private CriteriaLookupService criteriaLookupService;
  
      @Override
      public Country getCountry(final String code) {
          if (StringUtils.isBlank(code)) {
              throw new RiceIllegalArgumentException("code is blank");
          }
  
          CountryBo countryBo = businessObjectService.findByPrimaryKey(CountryBo.class, Collections.singletonMap(
                  KRADPropertyConstants.POSTAL_COUNTRY_CODE, code));
  
          return CountryBo.to(countryBo);
      }
  
      @Override
      public Country getCountryByAlternateCode(final String alternateCode) {
          if (StringUtils.isBlank(alternateCode)) {
              throw new RiceIllegalArgumentException("alt code is blank");
          }
  
          Collection<CountryBo> countryList = businessObjectService.findMatching(CountryBo.class, Collections.singletonMap(
                  KRADPropertyConstants.ALTERNATE_POSTAL_COUNTRY_CODE, alternateCode));
          if (countryList == null || countryList.isEmpty()) {
              return null;
          } else if (countryList.size() == 1) {
              return CountryBo.to(countryList.iterator().next());
          } else throw new RiceIllegalStateException("Multiple countries found with same alternateCode");
      }
  
      @Override
      public List<Country> findAllCountriesNotRestricted() {
          List<String> criteriaValues = new ArrayList<String>();
          criteriaValues.add(null);
          criteriaValues.add("N");
  
          final Map<String, Object> map = new HashMap<String, Object>();
          map.put(KRADPropertyConstants.POSTAL_COUNTRY_RESTRICTED_INDICATOR, criteriaValues);
          map.put("active", Boolean.TRUE);
  
          Collection<CountryBo> countryBos = businessObjectService.findMatching(CountryBo.class, Collections.unmodifiableMap(map));
  
          return convertListOfBosToImmutables(countryBos);
      }
  
      @Override
      public List<Country> findAllCountries() {
          final Map<String, Object> map = new HashMap<String, Object>();
          map.put("active", Boolean.TRUE);
  
          Collection<CountryBo> countryBos = businessObjectService.findMatching(CountryBo.class, Collections.unmodifiableMap(map));
          return convertListOfBosToImmutables(countryBos);
     }
 
     @Override
     public Country getDefaultCountry() {
         String defaultCountryCode = parameterService.getParameterValueAsString(KRADConstants.KNS_NAMESPACE,
                 KRADConstants.DetailTypes.ALL_DETAIL_TYPE, KRADConstants.SystemGroupParameterNames.DEFAULT_COUNTRY);
         if (StringUtils.isBlank(defaultCountryCode)) {
             return null;
         }
         return getCountry(defaultCountryCode);
     }
 
     @Override
     public CountryQueryResults findCountries(QueryByCriteria queryByCriteria) throws RiceIllegalArgumentException {
         incomingParamCheck(queryByCriteria, "queryByCriteria");
 
         GenericQueryResults<CountryBo> results = criteriaLookupService.lookup(CountryBo.class, queryByCriteria);
 
         CountryQueryResults.Builder builder = CountryQueryResults.Builder.create();
         builder.setMoreResultsAvailable(results.isMoreResultsAvailable());
         builder.setTotalRowCount(results.getTotalRowCount());
 
         final List<Country.Builder> ims = new ArrayList<Country.Builder>();
         for (CountryBo bo : results.getResults()) {
             ims.add(Country.Builder.create(bo));
         }
 
         builder.setResults(ims);
         return builder.build();
     }
 
     public ParameterService getParameterService() {
         return parameterService;
     }
 
     public void setParameterService(ParameterService parameterService) {
         this.parameterService = parameterService;
     }
 
     /**
      * Sets the businessObjectServiceMockFor attribute value.
      *
      * @param businessObjectService The businessObjectServiceMockFor to set.
      */
     public void setBusinessObjectService(final BusinessObjectService businessObjectService) {
         this.businessObjectService = businessObjectService;
     }
 
     /**
      * Converts a List<CountryBo> to an Unmodifiable List<Country>
      *
      * @param countryBos a mutable List<CountryBo> to made completely immutable.
      * @return An unmodifiable List<Country>
      */
     List<Country> convertListOfBosToImmutables(final Collection<CountryBo> countryBos) {
         ArrayList<Country> countries = new ArrayList<Country>();
         for (CountryBo bo : countryBos) {
             Country country = CountryBo.to(bo);
             countries.add(country);
         }
         return Collections.unmodifiableList(countries);
     }
 
     private void incomingParamCheck(Object object, String name) {
         if (object == null) {
             throw new RiceIllegalArgumentException(name + " was null");
         } else if (object instanceof String
                 && StringUtils.isBlank((String) object)) {
             throw new RiceIllegalArgumentException(name + " was blank");
         }
     }
 
     /**
      * Sets the criteriaLookupService attribute value.
      *
      * @param criteriaLookupService The criteriaLookupService to set.
      */
     public void setCriteriaLookupService(final CriteriaLookupService criteriaLookupService) {
         this.criteriaLookupService = criteriaLookupService;
     }
 }