'use strict';

////////////////////////////////////////////////////////////////////////////////
/// @brief AQL query management
///
/// @file
///
/// DISCLAIMER
///
/// Copyright 2012 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 Jan Steemann
/// @author Copyright 2013, triAGENS GmbH, Cologne, Germany
////////////////////////////////////////////////////////////////////////////////

var internal = require("internal");
var arangosh = require("@arangodb/arangosh");

// -----------------------------------------------------------------------------
// --SECTION--                                 module "@arangodb/aql/queries"
// -----------------------------------------------------------------------------

////////////////////////////////////////////////////////////////////////////////
/// @brief clears the slow query log
////////////////////////////////////////////////////////////////////////////////

exports.clearSlow = function () {
  var db = internal.db;

  var requestResult = db._connection.DELETE("/_api/query/slow", "");
  arangosh.checkRequestResult(requestResult);

  return requestResult;
};

////////////////////////////////////////////////////////////////////////////////
/// @brief returns the slow queries
////////////////////////////////////////////////////////////////////////////////

exports.slow = function () {
  var db = internal.db;

  var requestResult = db._connection.GET("/_api/query/slow", "");
  arangosh.checkRequestResult(requestResult);

  return requestResult;
};

////////////////////////////////////////////////////////////////////////////////
/// @brief returns the current queries
////////////////////////////////////////////////////////////////////////////////

exports.current = function () {
  var db = internal.db;

  var requestResult = db._connection.GET("/_api/query/current", "");
  arangosh.checkRequestResult(requestResult);

  return requestResult;
};

////////////////////////////////////////////////////////////////////////////////
/// @brief configures the query tracking properties
////////////////////////////////////////////////////////////////////////////////

exports.properties = function (config) {
  var db = internal.db;

  var requestResult;
  if (config === undefined) {
    requestResult = db._connection.GET("/_api/query/properties");
  }
  else {
    requestResult = db._connection.PUT("/_api/query/properties",
      JSON.stringify(config));
  }

  arangosh.checkRequestResult(requestResult);

  return requestResult;
};

////////////////////////////////////////////////////////////////////////////////
/// @brief kills a query
////////////////////////////////////////////////////////////////////////////////

exports.kill = function (id) {
  if (typeof id === 'object' && 
      id.hasOwnProperty('id')) {
    id = id.id;
  }

  var db = internal.db;

  var requestResult = db._connection.DELETE("/_api/query/" + encodeURIComponent(id), "");
  arangosh.checkRequestResult(requestResult);

  return requestResult;
};

// -----------------------------------------------------------------------------
// --SECTION--                                                       END-OF-FILE
// -----------------------------------------------------------------------------

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