const WebSocket = require('ws');
const config    = require('./config');
const http      = require('http');

var wss = null;

var server = http.createServer(

    function(req, res) {

        res.setHeader('Content-Type', 'application/json');

        wss.clients.forEach(
            function(client){
                if (client.readyState === WebSocket.OPEN) {
                    var cache = [];

                    res.write(

                        JSON.stringify(client,

                            function(key, value) {


                                if (typeof value === 'object' && value !== null) {
                                    if (cache.indexOf(value) !== -1) {
                                        // Duplicate reference found
                                        try {
                                            // If this value does not reference a parent it can be deduped
                                            return JSON.parse(JSON.stringify(value));
                                        } catch (error) {
                                            // discard key if value cannot be deduped
                                            return;
                                        }
                                    }
                                    // Store value in our collection
                                    cache.push(value);
                                }
                                return value;
                            }

                        )
                    );

                    cache = null;
                }
            }
        );





        res.end();
    }

);


wss = new WebSocket.Server(
    {
        server : server,
        perMessageDeflate: false
    }
);



server.on(
    'listening',
    function() {

        var address = server.address();

        console.log(
            'R3 Websocket Server started listening on ' + address.address +
            ':' + address.port,
            '(' + address.family + ')'
        );

    }
);

wss.on(
    'connection',
    function connection(websocket) {

        websocket.on('message', function incoming(message) {
            console.log('received: %s', message);
        });

        websocket.send('something');
    }
);

server.listen(config.websocket.port);