/*
    * 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 javax.ws.rs.core.MediaType;
  import javax.ws.rs.core.Response;
  import javax.ws.rs.core.StreamingOutput;
  import org.apache.syncope.common.lib.to.BpmnProcess;
  import org.apache.syncope.common.lib.types.BpmnProcessFormat;
  import org.apache.syncope.common.rest.api.RESTHeaders;
  import org.apache.syncope.common.rest.api.service.BpmnProcessService;
  import org.apache.syncope.core.logic.BpmnProcessLogic;
  import org.springframework.stereotype.Service;
  
  @Service
  public class BpmnProcessServiceImpl extends AbstractService implements BpmnProcessService {
  
      protected final BpmnProcessLogic logic;
  
      public BpmnProcessServiceImpl(final BpmnProcessLogic logic) {
          this.logic = logic;
      }
  
      @Override
      public List<BpmnProcess> list() {
          return logic.list();
      }
  
      @Override
      public Response get(final String key) {
          BpmnProcessFormat format =
                  messageContext.getHttpHeaders().getAcceptableMediaTypes().contains(MediaType.APPLICATION_JSON_TYPE)
                  ? BpmnProcessFormat.JSON
                  : BpmnProcessFormat.XML;
  
          StreamingOutput sout = os -> logic.exportDefinition(key, format, os);
  
          return Response.ok(sout).
                  type(format.getMediaType()).
                  build();
      }
  
      @Override
      public Response exportDiagram(final String key) {
          StreamingOutput sout = (os) -> logic.exportDiagram(key, os);
  
          return Response.ok(sout).
                  type(RESTHeaders.MEDIATYPE_IMAGE_PNG).
                  build();
      }
  
      @Override
      public void set(final String key, final String definition) {
          BpmnProcessFormat format =
                  messageContext.getHttpHeaders().getMediaType().equals(MediaType.APPLICATION_JSON_TYPE)
                  ? BpmnProcessFormat.JSON
                  : BpmnProcessFormat.XML;
  
          logic.importDefinition(key, format, definition);
      }
  
      @Override
      public void delete(final String key) {
          logic.delete(key);
      }
  }