/*
    * 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.client.console.resources;
  
  import java.io.IOException;
  import javax.servlet.http.HttpServletRequest;
  import javax.ws.rs.core.MediaType;
  import javax.ws.rs.core.Response;
  import org.apache.cxf.common.util.UrlUtils;
  import org.apache.syncope.client.console.rest.BpmnProcessRestClient;
  import org.apache.syncope.client.ui.commons.annotations.Resource;
  import org.apache.syncope.common.lib.to.BpmnProcess;
  import org.apache.wicket.util.io.IOUtils;
  
  /**
   * Mirror REST resource for setting BPMN process in JSON (used by Flowable Modeler).
   */
  @Resource(key = "bpmnProcessPUT", path = "/bpmnProcessPUT")
  public class BpmnProcessPUTResource extends AbstractBpmnProcessResource {
  
      private static final long serialVersionUID = 2964542005207297944L;
  
      public BpmnProcessPUTResource(final BpmnProcessRestClient bpmnProcessRestClient) {
          super(bpmnProcessRestClient);
      }
  
      @Override
      protected ResourceResponse newResourceResponse(final Attributes attributes) {
          String definition = null;
          try {
              HttpServletRequest request = (HttpServletRequest) attributes.getRequest().getContainerRequest();
              String requestBody = IOUtils.toString(request.getInputStream());
              String[] split = requestBody.split("&");
              for (int i = 0; i < split.length && definition == null; i++) {
                  String keyValue = split[i];
                  if (keyValue.startsWith("json_xml=")) {
                      definition = UrlUtils.urlDecode(keyValue.split("=")[1]);
                  }
              }
          } catch (IOException e) {
              LOG.error("Could not extract BPMN process", e);
          }
  
          BpmnProcess toSet = getBpmnProcess(attributes);
  
          if (definition == null || toSet == null) {
              return new ResourceResponse().setStatusCode(Response.Status.BAD_REQUEST.getStatusCode()).
                      setError(Response.Status.BAD_REQUEST.getStatusCode(),
                              "Could not extract BPMN process' model id and / or definition");
          }
  
          try {
              bpmnProcessRestClient.setDefinition(MediaType.APPLICATION_JSON_TYPE, toSet.getKey(), definition);
              return new ResourceResponse().setStatusCode(Response.Status.NO_CONTENT.getStatusCode());
          } catch (Exception e) {
              LOG.error("While updating BPMN process", e);
              return new ResourceResponse().setStatusCode(Response.Status.BAD_REQUEST.getStatusCode()).
                      setError(Response.Status.BAD_REQUEST.getStatusCode(),
                              "While updating BPMN process: " + e.getMessage());
          }
      }
  }