////////////////////////////////////////////////////////////////////////////////
/// @brief action request handler
///
/// @file
///
/// DISCLAIMER
///
/// Copyright 2010-2011 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 triAGENS GmbH, Cologne, Germany
///
/// @author Dr. Frank Celler
/// @author Copyright 2010-2011, triAGENS GmbH, Cologne, Germany
////////////////////////////////////////////////////////////////////////////////

#include "RestActionHandler.h"

#include <Basics/StringUtils.h>

#include <Rest/HttpRequest.h>

#include <VocBase/document-collection.h>
#include <VocBase/result-set.h>
#include <VocBase/vocbase.h>

using namespace std;
using namespace triagens::basics;
using namespace triagens::rest;
using namespace triagens::avocado;

// -----------------------------------------------------------------------------
// --SECTION--                                      constructors and destructors
// -----------------------------------------------------------------------------

////////////////////////////////////////////////////////////////////////////////
/// @addtogroup AvocadoDB
/// @{
////////////////////////////////////////////////////////////////////////////////

////////////////////////////////////////////////////////////////////////////////
/// @brief constructor
////////////////////////////////////////////////////////////////////////////////

RestActionHandler::RestActionHandler (HttpRequest* request, TRI_vocbase_t* vocbase)
  : RestVocbaseBaseHandler(request, vocbase),
    _category(TRI_ACT_CATEGORY_USER) {
}

////////////////////////////////////////////////////////////////////////////////
/// @}
////////////////////////////////////////////////////////////////////////////////

// -----------------------------------------------------------------------------
// --SECTION--                                                   Handler methods
// -----------------------------------------------------------------------------

////////////////////////////////////////////////////////////////////////////////
/// @addtogroup AvocadoDB
/// @{
////////////////////////////////////////////////////////////////////////////////

////////////////////////////////////////////////////////////////////////////////
/// {@inheritDoc}
////////////////////////////////////////////////////////////////////////////////

string const& RestActionHandler::queue () {
  static string action = "ACTION";
  return action;
}

////////////////////////////////////////////////////////////////////////////////
/// {@inheritDoc}
////////////////////////////////////////////////////////////////////////////////

HttpHandler::status_e RestActionHandler::execute () {

  // extract the sub-request type
  HttpRequest::HttpRequestType type = request->requestType();

  // prepare logging
  static LoggerData::Task const logExecute(ACTION_PATH + " [execute]");
  static LoggerData::Task const logIllegal(ACTION_PATH + " [illegal]");

  LoggerData::Task const * task = &logIllegal;

  switch (type) {
    case HttpRequest::HTTP_REQUEST_DELETE: task = &logIllegal; break;
    case HttpRequest::HTTP_REQUEST_GET: task = &logExecute; break;
    case HttpRequest::HTTP_REQUEST_POST: task = &logIllegal; break;
    case HttpRequest::HTTP_REQUEST_PUT: task = &logIllegal; break;
    case HttpRequest::HTTP_REQUEST_ILLEGAL: task = &logIllegal; break;
  }

  _timing << *task;
  LOGGER_REQUEST_IN_START_I(_timing);

  // execute one of the CRUD methods
  bool res = false;

  switch (type) {
    case HttpRequest::HTTP_REQUEST_GET: res = executeAction(); break;

    default:
      res = false;
      generateNotImplemented("ILLEGAL " + ACTION_PATH);
      break;
  }

  _timingResult = res ? RES_ERR : RES_OK;

  // this handler is done
  return HANDLER_DONE;
}

////////////////////////////////////////////////////////////////////////////////
/// @}
////////////////////////////////////////////////////////////////////////////////

// -----------------------------------------------------------------------------
// --SECTION--                                                   private methods
// -----------------------------------------------------------------------------

////////////////////////////////////////////////////////////////////////////////
/// @addtogroup AvocadoDB
/// @{
////////////////////////////////////////////////////////////////////////////////

////////////////////////////////////////////////////////////////////////////////
/// @brief executes an action
////////////////////////////////////////////////////////////////////////////////

bool RestActionHandler::executeAction () {
  vector<string> const& suffix = request->suffix();
  string name = StringUtils::join(suffix, '/');

  response = TRI_ExecuteActionVocBase(_vocbase, _category, name, request);

  if (response == 0) {
    generateNotImplemented(ACTION_PATH + "/" + name);
    return false;
  }

  return (int) response->responseCode() < 400;
}

////////////////////////////////////////////////////////////////////////////////
/// @}
////////////////////////////////////////////////////////////////////////////////

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