/*jshint strict: false, unused: false */

////////////////////////////////////////////////////////////////////////////////
/// @brief deliver static content from collection
///
/// @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 Dr. Frank Celler
/// @author Copyright 2012, triAGENS GmbH, Cologne, Germany
////////////////////////////////////////////////////////////////////////////////

var arangodb = require("@arangodb");
var actions = require("@arangodb/actions");


////////////////////////////////////////////////////////////////////////////////
/// @brief locate content from collection
////////////////////////////////////////////////////////////////////////////////

function locateContentFromCollection (req, options) {
  var path;
  var collection;

  if (! options.hasOwnProperty("contentCollection")) {
    return null;
  }

  collection = arangodb.db._collection(options.contentCollection);

  if (collection === null) {
    return null;
  }

  path = "/" + req.suffix.join("/");

  return collection.firstExample({
    path: path,
    prefix: options.prefix,
    application: options.application });
}


////////////////////////////////////////////////////////////////////////////////
/// @brief locate content from collection
////////////////////////////////////////////////////////////////////////////////

exports.head = function (req, res, options, next) {
  var content;

  content = locateContentFromCollection(req, options);

  if (content === null) {
    res.responseCode = actions.HTTP_NOT_IMPLEMENTED;
    res.contentType = "text/plain";
  }
  else {
    res.responseCode = actions.HTTP_OK;
    res.contentType = content.contentType || "text/html";
  }

  res.body = "";
};

////////////////////////////////////////////////////////////////////////////////
/// @brief get request
////////////////////////////////////////////////////////////////////////////////

exports.get = function (req, res, options, next) {
  var content;

  content = locateContentFromCollection(req, options);

  if (content === null) {
    res.responseCode = actions.HTTP_NOT_IMPLEMENTED;
    res.contentType = "text/plain";
    res.body = "path '" + req.suffix.join("/") + "' not implemented";
  }
  else {
    res.responseCode = actions.HTTP_OK;
    res.contentType = content.contentType || "text/html";
    res.body = content.content || "";
  }
};