/*
    * 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.rest.cxf.service;
  
  import java.net.URI;
  import java.time.OffsetDateTime;
  import java.util.List;
  import javax.ws.rs.BadRequestException;
  import javax.ws.rs.core.Response;
  import org.apache.commons.lang3.tuple.Pair;
  import org.apache.syncope.common.lib.form.SyncopeForm;
  import org.apache.syncope.common.lib.to.ExecTO;
  import org.apache.syncope.common.lib.to.PagedResult;
  import org.apache.syncope.common.lib.to.SchedTaskTO;
  import org.apache.syncope.common.lib.to.TaskTO;
  import org.apache.syncope.common.lib.types.ExecStatus;
  import org.apache.syncope.common.lib.types.TaskType;
  import org.apache.syncope.common.rest.api.RESTHeaders;
  import org.apache.syncope.common.rest.api.beans.ExecSpecs;
  import org.apache.syncope.common.rest.api.beans.TaskQuery;
  import org.apache.syncope.common.rest.api.service.TaskService;
  import org.apache.syncope.core.logic.AbstractExecutableLogic;
  import org.apache.syncope.core.logic.TaskLogic;
  import org.springframework.stereotype.Service;
  import org.springframework.util.CollectionUtils;
  
  @Service
  public class TaskServiceImpl extends AbstractExecutableService implements TaskService {
  
      protected final TaskLogic logic;
  
      public TaskServiceImpl(final TaskLogic logic) {
          this.logic = logic;
      }
  
      @Override
      protected AbstractExecutableLogic<?> getExecutableLogic() {
          return logic;
      }
  
      @Override
      public Response create(final TaskType type, final SchedTaskTO taskTO) {
          SchedTaskTO createdTask;
          if (taskTO != null) {
              createdTask = logic.createSchedTask(type, taskTO);
          } else {
              throw new BadRequestException();
          }
  
          URI location = uriInfo.getAbsolutePathBuilder().path(createdTask.getKey()).build();
          return Response.created(location).
                  header(RESTHeaders.RESOURCE_KEY, createdTask.getKey()).
                  build();
      }
  
      @Override
      public void delete(final TaskType type, final String key) {
          logic.delete(type, key);
      }
  
      @SuppressWarnings("unchecked")
      @Override
      public <T extends TaskTO> PagedResult<T> search(final TaskQuery query) {
          Pair<Integer, List<T>> result = logic.search(
                  query.getType(),
                  query.getResource(),
                  query.getNotification(),
                  query.getAnyTypeKind(),
                  query.getEntityKey(),
                  query.getPage(),
                  query.getSize(),
                  getOrderByClauses(query.getOrderBy()),
                  query.getDetails());
          return buildPagedResult(result.getRight(), query.getPage(), query.getSize(), result.getLeft());
      }
  
      @Override
      public <T extends TaskTO> T read(final TaskType type, final String key, final boolean details) {
          return logic.read(type, key, details);
      }
  
      @Override
      public void update(final TaskType type, final SchedTaskTO taskTO) {
         logic.updateSchedTask(type, taskTO);
     }
 
     @Override
     public Response purgePropagations(
             final OffsetDateTime since,
             final List<ExecStatus> statuses,
             final List<String> resources) {
 
         if (since == null && CollectionUtils.isEmpty(statuses) && CollectionUtils.isEmpty(resources)) {
             return Response.status(Response.Status.PRECONDITION_FAILED).build();
         }
 
         return Response.ok(logic.purgePropagations(since, statuses, resources)).build();
     }
 
     @Override
     public SyncopeForm getMacroTaskForm(final String key) {
         return logic.getMacroTaskForm(key);
     }
 
     @Override
     public ExecTO execute(final ExecSpecs specs, final SyncopeForm macroTaskForm) {
         return logic.execute(specs, macroTaskForm);
     }
 }