// Copyright 2015 rain1017.
//
// 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. See the AUTHORS file
// for names of contributors.

'use strict';

var _ = require('lodash');

var Handler = function(app){
    this.app = app;
};

var proto = Handler.prototype;

proto.getConnector = function(msg, session, next){
    var servers = this.app.getServersByType('connector');
    var server = _.sample(servers);
    if(!server){
        return next(new Error('No connector server available'));
    }
    var data = {host : server.clientHost, port : server.clientPort};
    next(null, data);
};

module.exports = function(app){
    return new Handler(app);
};