/* jshint strict: false */

// //////////////////////////////////////////////////////////////////////////////
// / @brief JavaScript actions module
// /
// / @file
// /
// / DISCLAIMER
// /
// / Copyright 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 2013, triAGENS GmbH, Cologne, Germany
// //////////////////////////////////////////////////////////////////////////////

var internal = require('internal');

var arangodb = require('@arangodb');

// //////////////////////////////////////////////////////////////////////////////
// / @brief prints the flatten routing cache for a method
// //////////////////////////////////////////////////////////////////////////////

function printFlatRoutingMethod (indent, flat) {
  var i;

  for (i = 0;  i < flat.length;  ++i) {
    var f = flat[i];
    var c = '';

    if (f.prefix) {
      c += 'prefix ';
    }

    if (c !== '') {
      c = '[' + c.substr(0, c.length - 1) + ']';
    }

    arangodb.printf('%s%d: %s %s\n', indent, i, f.path, c);
  }
}

// //////////////////////////////////////////////////////////////////////////////
// / @brief prints the routing cache for a method
// //////////////////////////////////////////////////////////////////////////////

function printRoutingMethod (indent, routes) {
  var k;
  var i;

  if (routes.hasOwnProperty('exact')) {
    for (k in routes.exact) {
      if (routes.exact.hasOwnProperty(k)) {
        arangodb.printf("%sEXACT '%s'\n", indent, k);

        if (routes.exact.hasOwnProperty(k)) {
          printRoutingMethod(indent + ' ', routes.exact[k]);
        }
      }
    }
  }

  if (routes.hasOwnProperty('parameters')) {
    for (i = 0;  i < routes.parameters.length;  ++i) {
      var parameter = routes.parameters[i];

      if (parameter.hasOwnProperty('constraint')) {
        arangodb.printf("%PARAMETER '%s'\n", indent, parameter.constraint);
      } else {
        arangodb.printf('%PARAMETER\n', indent);
      }

      printRoutingMethod(indent + ' ', parameter.match);
    }
  }

  if (routes.hasOwnProperty('callback')) {
    arangodb.printf('%sCALLBACK\n', indent);
  }

  if (routes.hasOwnProperty('prefix')) {
    arangodb.printf('%sPREFIX\n', indent);
    printRoutingMethod(indent + ' ', routes.prefix);
  }
}

// //////////////////////////////////////////////////////////////////////////////
// / @brief returns the routing cache
// //////////////////////////////////////////////////////////////////////////////

exports.routingCache = internal.routingCache;

// //////////////////////////////////////////////////////////////////////////////
// / @brief prints the flatten routing cache
// //////////////////////////////////////////////////////////////////////////////

function printFlatRouting (method) {
  var cache = exports.routingCache();

  if (method === undefined) {
    method = 'GET';
  } else {
    method = method.toUpperCase();
  }

  arangodb.printf('METHOD %s\n', method);
  printFlatRoutingMethod(' ', cache.flat[method]);
}

// //////////////////////////////////////////////////////////////////////////////
// / @brief prints the routing cache
// //////////////////////////////////////////////////////////////////////////////

function printRouting (method) {
  var cache = exports.routingCache();

  if (method === undefined) {
    method = 'GET';
  } else {
    method = method.toUpperCase();
  }

  arangodb.printf('METHOD %s\n', method);
  arangodb.printf(' ROUTES\n');
  printRoutingMethod('  ', cache.routes[method]);

  arangodb.printf('METHOD %s\n', method);
  arangodb.printf(' MIDDLEWARE\n');
  printRoutingMethod('  ', cache.middleware[method]);
}

exports.printFlatRouting = printFlatRouting;
exports.printRouting = printRouting;