/*
    * Licensed to the Apache Software Foundation (ASF) under one
    * or more contributor license agreements.  See the NOTICE file
    * distributed with this work for additional information
    * regarding copyright ownership.  The ASF licenses this file
    * to you under the Apache 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.apache.org/licenses/LICENSE-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.apache.syncope.core.provisioning.java.data;
  
  import org.apache.syncope.common.lib.SyncopeClientCompositeException;
  import org.apache.syncope.common.lib.SyncopeClientException;
  import org.apache.syncope.common.lib.to.AttrRepoTO;
  import org.apache.syncope.common.lib.to.Item;
  import org.apache.syncope.common.lib.types.ClientExceptionType;
  import org.apache.syncope.common.lib.types.MappingPurpose;
  import org.apache.syncope.core.persistence.api.entity.EntityFactory;
  import org.apache.syncope.core.persistence.api.entity.am.AttrRepo;
  import org.apache.syncope.core.provisioning.api.data.AttrRepoDataBinder;
  import org.apache.syncope.core.provisioning.api.jexl.JexlUtils;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  public class AttrRepoDataBinderImpl implements AttrRepoDataBinder {
  
      protected static final Logger LOG = LoggerFactory.getLogger(AttrRepoDataBinder.class);
  
      protected final EntityFactory entityFactory;
  
      public AttrRepoDataBinderImpl(final EntityFactory entityFactory) {
          this.entityFactory = entityFactory;
      }
  
      protected void populateItems(final AttrRepoTO attrRepoTO, final AttrRepo attrRepo) {
          SyncopeClientCompositeException scce = SyncopeClientException.buildComposite();
          SyncopeClientException invalidMapping =
                  SyncopeClientException.build(ClientExceptionType.InvalidMapping);
          SyncopeClientException requiredValuesMissing =
                  SyncopeClientException.build(ClientExceptionType.RequiredValuesMissing);
  
          attrRepoTO.getItems().forEach(itemTO -> {
              if (itemTO == null) {
                  LOG.error("Null {}", Item.class.getSimpleName());
                  invalidMapping.getElements().add("Null " + Item.class.getSimpleName());
              } else if (itemTO.getIntAttrName() == null) {
                  requiredValuesMissing.getElements().add("intAttrName");
                  scce.addException(requiredValuesMissing);
              } else {
                  // no mandatory condition implies mandatory condition false
                  if (!JexlUtils.isExpressionValid(itemTO.getMandatoryCondition() == null
                          ? "false" : itemTO.getMandatoryCondition())) {
  
                      SyncopeClientException invalidMandatoryCondition =
                              SyncopeClientException.build(ClientExceptionType.InvalidValues);
                      invalidMandatoryCondition.getElements().add(itemTO.getMandatoryCondition());
                      scce.addException(invalidMandatoryCondition);
                  }
  
                  Item item = new Item();
                  item.setIntAttrName(itemTO.getIntAttrName());
                  item.setExtAttrName(itemTO.getExtAttrName());
                  item.setMandatoryCondition(itemTO.getMandatoryCondition());
                  item.setConnObjectKey(itemTO.isConnObjectKey());
                  item.setPassword(itemTO.isPassword());
                  item.setPropagationJEXLTransformer(itemTO.getPropagationJEXLTransformer());
                  item.setPullJEXLTransformer(itemTO.getPullJEXLTransformer());
                  attrRepo.getItems().add(item);
              }
          });
  
          if (!invalidMapping.getElements().isEmpty()) {
              scce.addException(invalidMapping);
          }
          if (scce.hasExceptions()) {
              throw scce;
          }
      }
  
      @Override
      public AttrRepo create(final AttrRepoTO attrRepoTO) {
          AttrRepo attrRepo = entityFactory.newEntity(AttrRepo.class);
          attrRepo.setKey(attrRepoTO.getKey());
          return update(attrRepo, attrRepoTO);
      }
  
      @Override
      public AttrRepo update(final AttrRepo attrRepo, final AttrRepoTO attrRepoTO) {
          attrRepo.setDescription(attrRepoTO.getDescription());
          attrRepo.setState(attrRepoTO.getState());
         attrRepo.setOrder(attrRepoTO.getOrder());
         attrRepo.setConf(attrRepoTO.getConf());
 
         attrRepo.getItems().clear();
         populateItems(attrRepoTO, attrRepo);
 
         return attrRepo;
     }
 
     protected void populateItems(final AttrRepo attrRepo, final AttrRepoTO attrRepoTO) {
         attrRepo.getItems().forEach(item -> {
             Item itemTO = new Item();
             itemTO.setIntAttrName(item.getIntAttrName());
             itemTO.setExtAttrName(item.getExtAttrName());
             itemTO.setMandatoryCondition(item.getMandatoryCondition());
             itemTO.setConnObjectKey(item.isConnObjectKey());
             itemTO.setPassword(item.isPassword());
             itemTO.setPropagationJEXLTransformer(item.getPropagationJEXLTransformer());
             itemTO.setPullJEXLTransformer(item.getPullJEXLTransformer());
             itemTO.setPurpose(MappingPurpose.NONE);
 
             attrRepoTO.getItems().add(itemTO);
         });
     }
 
     @Override
     public AttrRepoTO getAttrRepoTO(final AttrRepo attrRepo) {
         AttrRepoTO attrRepoTO = new AttrRepoTO();
 
         attrRepoTO.setKey(attrRepo.getKey());
         attrRepoTO.setDescription(attrRepo.getDescription());
         attrRepoTO.setState(attrRepo.getState());
         attrRepoTO.setOrder(attrRepo.getOrder());
         attrRepoTO.setConf(attrRepo.getConf());
 
         populateItems(attrRepo, attrRepoTO);
 
         return attrRepoTO;
     }
 }