/*
    * 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.util.List;
  import java.util.Optional;
  import javax.ws.rs.core.Response;
  import org.apache.commons.lang3.tuple.Pair;
  import org.apache.syncope.common.lib.to.PagedResult;
  import org.apache.syncope.common.lib.to.ProvisioningResult;
  import org.apache.syncope.common.lib.to.UserRequest;
  import org.apache.syncope.common.lib.to.UserRequestForm;
  import org.apache.syncope.common.lib.to.UserTO;
  import org.apache.syncope.common.lib.to.WorkflowTaskExecInput;
  import org.apache.syncope.common.rest.api.beans.UserRequestQuery;
  import org.apache.syncope.common.rest.api.service.UserRequestService;
  import org.apache.syncope.core.logic.UserRequestLogic;
  import org.apache.syncope.core.persistence.api.dao.UserDAO;
  import org.springframework.stereotype.Service;
  
  @Service
  public class UserRequestServiceImpl extends AbstractService implements UserRequestService {
  
      protected final UserRequestLogic logic;
  
      protected final UserDAO userDAO;
  
      public UserRequestServiceImpl(final UserRequestLogic logic, final UserDAO userDAO) {
          this.logic = logic;
          this.userDAO = userDAO;
      }
  
      @Override
      public PagedResult<UserRequest> listRequests(final UserRequestQuery query) {
          if (query.getUser() != null) {
              query.setUser(Optional.ofNullable(findActualKey(userDAO, query.getUser())).orElse(query.getUser()));
          }
  
          Pair<Integer, List<UserRequest>> result = logic.listRequests(
                  query.getUser(), query.getPage(), query.getSize(), getOrderByClauses(query.getOrderBy()));
          return buildPagedResult(result.getRight(), query.getPage(), query.getSize(), result.getLeft());
      }
  
      @Override
      public UserRequest startRequest(
              final String bpmnProcess, final String user, final WorkflowTaskExecInput inputVariables) {
  
          return user == null
                  ? logic.startRequest(bpmnProcess, inputVariables)
                  : logic.startRequest(bpmnProcess, findActualKey(userDAO, user), inputVariables);
      }
  
      @Override
      public void cancelRequest(final String executionId, final String reason) {
          logic.cancelRequest(executionId, reason);
      }
  
      @Override
      public UserRequestForm claimForm(final String taskId) {
          return logic.claimForm(taskId);
      }
  
      @Override
      public UserRequestForm unclaimForm(final String taskId) {
          return logic.unclaimForm(taskId);
      }
  
      @Override
      public UserRequestForm getForm(final String username, final String taskId) {
          return logic.getForm(findActualKey(userDAO, username), taskId);
      }
  
      @Override
      public PagedResult<UserRequestForm> listForms(final UserRequestQuery query) {
          if (query.getUser() != null) {
              query.setUser(Optional.ofNullable(findActualKey(userDAO, query.getUser())).orElse(query.getUser()));
          }
  
          Pair<Integer, List<UserRequestForm>> result = logic.listForms(
                  query.getUser(), query.getPage(), query.getSize(), getOrderByClauses(query.getOrderBy()));
          return buildPagedResult(result.getRight(), query.getPage(), query.getSize(), result.getLeft());
      }
  
     @Override
     public Response submitForm(final UserRequestForm form) {
         ProvisioningResult<UserTO> submitted = logic.submitForm(form, isNullPriorityAsync());
         return modificationResponse(submitted);
     }
 }