/*jshint strict: false, -W051: true */
/*global require, ArangoConnection, SYS_ARANGO, window */

////////////////////////////////////////////////////////////////////////////////
/// @brief module "internal"
///
/// @file
///
/// DISCLAIMER
///
/// Copyright 2004-2013 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 2010-2013, triAGENS GmbH, Cologne, Germany
////////////////////////////////////////////////////////////////////////////////

// -----------------------------------------------------------------------------
// --SECTION--                                                 Module "internal"
// -----------------------------------------------------------------------------

// -----------------------------------------------------------------------------
// --SECTION--                                                 private variables
// -----------------------------------------------------------------------------

(function () {
  var internal = require("internal");

////////////////////////////////////////////////////////////////////////////////
/// @brief hide global variables
////////////////////////////////////////////////////////////////////////////////

    if (typeof ArangoConnection !== "undefined") {
      internal.ArangoConnection = ArangoConnection;
      delete ArangoConnection;
    }

    if (typeof SYS_ARANGO !== "undefined") {
      internal.arango = SYS_ARANGO;
      delete SYS_ARANGO;
    }

// -----------------------------------------------------------------------------
// --SECTION--                                                 private functions
// -----------------------------------------------------------------------------

////////////////////////////////////////////////////////////////////////////////
/// @brief write-ahead log functionality
////////////////////////////////////////////////////////////////////////////////

  internal.wal = {
    flush: function (waitForSync, waitForCollector) {
      if (typeof internal.arango !== 'undefined') {
        var wfs = waitForSync ? "true" : "false";
        var wfc = waitForCollector ? "true" : "false";
        internal.arango.PUT("/_admin/wal/flush?waitForSync=" + wfs + "&waitForCollector=" + wfc, "");
        return;
      }

      throw "not connected";
    },

    properties: function (value) {
      if (typeof internal.arango !== 'undefined') {
        if (value !== undefined) {
          return internal.arango.PUT("/_admin/wal/properties", JSON.stringify(value));
        }

        return internal.arango.GET("/_admin/wal/properties", "");
      }

      throw "not connected";
    }
  };

////////////////////////////////////////////////////////////////////////////////
/// @brief reloads the AQL user functions
////////////////////////////////////////////////////////////////////////////////

  internal.reloadAqlFunctions = function () {
    if (typeof internal.arango !== 'undefined') {
      internal.arango.POST("/_admin/aql/reload", "");
      return;
    }

    throw "not connected";
  };

////////////////////////////////////////////////////////////////////////////////
/// @brief flushes the module cache of the server
////////////////////////////////////////////////////////////////////////////////

  internal.flushServerModules = function () {
    if (typeof internal.arango !== 'undefined') {
      internal.arango.POST("/_admin/modules/flush", "");
      return;
    }

    throw "not connected";
  };

////////////////////////////////////////////////////////////////////////////////
/// @brief rebuilds the routing cache
////////////////////////////////////////////////////////////////////////////////

  internal.reloadRouting = function () {
    if (typeof internal.arango !== 'undefined') {
      internal.arango.POST("/_admin/routing/reload", "");
      return;
    }

    throw "not connected";
  };

////////////////////////////////////////////////////////////////////////////////
/// @brief rebuilds the routing cache
////////////////////////////////////////////////////////////////////////////////

  internal.routingCache = function () {
    if (typeof internal.arango !== 'undefined') {
      return internal.arango.GET("/_admin/routing/routes", "");

    }

    throw "not connected";
  };

////////////////////////////////////////////////////////////////////////////////
/// @brief rebuilds the authentication cache
////////////////////////////////////////////////////////////////////////////////

  internal.reloadAuth = function () {
    if (typeof internal.arango !== 'undefined') {
      internal.arango.POST("/_admin/auth/reload", "");
      return;
    }

    throw "not connected";
  };

////////////////////////////////////////////////////////////////////////////////
/// @brief execute javascript file on the server
////////////////////////////////////////////////////////////////////////////////

  internal.executeServer = function (body) {
    if (typeof internal.arango !== 'undefined') {
      return internal.arango.POST("/_admin/execute", body);
    }

    throw "not connected";
  };

////////////////////////////////////////////////////////////////////////////////
/// @brief logs a request in curl format
////////////////////////////////////////////////////////////////////////////////

  internal.appendCurlRequest = function (appender) {
    return function (method, url, body, headers) {
      var response;
      var curl;
      var i;

      if (typeof body !== 'string') {
        body = internal.inspect(body);
      }

      curl = "shell> curl ";

      if (method === 'POST') {
        response = internal.arango.POST_RAW(url, body, headers);
        curl += "-X " + method + " ";
      }
      else if (method === 'PUT') {
        response = internal.arango.PUT_RAW(url, body, headers);
        curl += "-X " + method + " ";
      }
      else if (method === 'GET') {
        response = internal.arango.GET_RAW(url, headers);
      }
      else if (method === 'DELETE') {
        response = internal.arango.DELETE_RAW(url, headers);
        curl += "-X " + method + " ";
      }
      else if (method === 'PATCH') {
        response = internal.arango.PATCH_RAW(url, body, headers);
        curl += "-X " + method + " ";
      }
      else if (method === 'HEAD') {
        response = internal.arango.HEAD_RAW(url, headers);
        curl += "-X " + method + " ";
      }
      else if (method === 'OPTION') {
        response = internal.arango.OPTION_RAW(url, body, headers);
        curl += "-X " + method + " ";
      }
      if (headers !== undefined && headers !== "") {
        for (i in headers) {
          if (headers.hasOwnProperty(i)) {
            curl += "--header \'" + i + ": " + headers[i] + "\' ";
          }
        }
      }

      if (body !== undefined && body !== "") {
        curl += "--data-binary @- ";
      }

      curl += "--dump - http://localhost:8529" + url;

      appender(curl + "\n");

      if (body !== undefined && body !== "" && body !== "undefined") {
        appender(body + "\n");
      }

      appender("\n");

      return response;
    };
  };

////////////////////////////////////////////////////////////////////////////////
/// @brief logs a raw response
////////////////////////////////////////////////////////////////////////////////

  internal.appendRawResponse = function (appender) {
    return function (response) {
      var key;
      var headers = response.headers;

      // generate header
      appender("HTTP/1.1 " + headers['http/1.1'] + "\n");

      for (key in headers) {
        if (headers.hasOwnProperty(key)) {
          if (key !== 'http/1.1' && key !== 'server' && key !== 'connection'
              && key !== 'content-length') {
            appender(key + ": " + headers[key] + "\n");
          }
        }
      }

      appender("\n");

      // append body
      if (response.body !== undefined) {
        appender(internal.inspect(response.body));
        appender("\n");
      }
    };
  };

////////////////////////////////////////////////////////////////////////////////
/// @brief logs a response in JSON
////////////////////////////////////////////////////////////////////////////////

  internal.appendJsonResponse = function (appender) {
    return function (response) {
      var rawAppend = internal.appendRawResponse(appender);

      // copy original body (this is necessary because "response" is passed by reference)
      var copy = response.body;
      // overwrite body with parsed JSON && append
      response.body = JSON.parse(response.body);
      rawAppend(response);
      // restore original body
      response.body = copy;
    };
  };

// -----------------------------------------------------------------------------
// --SECTION--                                                  public functions
// -----------------------------------------------------------------------------

////////////////////////////////////////////////////////////////////////////////
/// @brief log function
////////////////////////////////////////////////////////////////////////////////

  internal.log = function (level, msg) {
    internal.output(level, ": ", msg, "\n");
  };

////////////////////////////////////////////////////////////////////////////////
/// @brief sprintf wrapper
////////////////////////////////////////////////////////////////////////////////

  try {
    if (window) {
      internal.sprintf = function (format) {
        var n = arguments.length;
        if (n === 0) {
          return "";
        }
        if (n <= 1) {
          return String(format);
        }

        var i = 0;

        return format.replace(/%[dfs]/, function () {
          return String(arguments[++i]);
        });
      };
    }
  }
  catch (err) {
  }

}());

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

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