////////////////////////////////////////////////////////////////////////////////
/// DISCLAIMER
///
/// Copyright 2014-2016 ArangoDB GmbH, Cologne, Germany
/// Copyright 2004-2014 triAGENS GmbH, Cologne, Germany
///
/// Licensed 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.
///
/// Copyright holder is ArangoDB GmbH, Cologne, Germany
///
/// @author Max Neunhoeffer
////////////////////////////////////////////////////////////////////////////////

#include "RestShutdownHandler.h"

#include "Rest/HttpRequest.h"
#include "Cluster/ClusterFeature.h"

#include <velocypack/Builder.h>
#include <velocypack/velocypack-aliases.h>

using namespace arangodb;
using namespace arangodb::application_features;
using namespace arangodb::rest;

RestShutdownHandler::RestShutdownHandler(GeneralRequest* request, GeneralResponse* response)
  : RestBaseHandler(request, response) {}

bool RestShutdownHandler::isDirect() const { return true; }

////////////////////////////////////////////////////////////////////////////////
/// @brief was docuBlock JSF_get_api_initiate
////////////////////////////////////////////////////////////////////////////////

RestHandler::status RestShutdownHandler::execute() {
  if (_request->requestType() != GeneralRequest::RequestType::DELETE_REQ) {
    generateError(GeneralResponse::ResponseCode::METHOD_NOT_ALLOWED, 405);
    return status::DONE;
  }

  bool found;
  std::string const& remove = _request->value("remove_from_cluster", found);
  if (found && remove == "1") {
    ClusterFeature* clusterFeature = ApplicationServer::getFeature<ClusterFeature>("Cluster");
    clusterFeature->setUnregisterOnShutdown(true);
  }

  ApplicationServer::server->beginShutdown();

  try {
    VPackBuilder result;
    result.add(VPackValue("OK"));
    generateResult(GeneralResponse::ResponseCode::OK, result.slice());
  } catch (...) {
    // Ignore the error
  }

  return status::DONE;
}