var http = require("http");
var net = require("net");

var httpAddress = "0.0.0.0";
var httpPort = "8001";

var getAgent = function() {
    return undefined;
    var agent;
    return function() {
        if (!agent) {
            agent = new http.Agent();
            agent.createConnection = function(options) {
                var socket = net.createConnection(options);
                socket.on("error", function(err) {
                    console.log("AHA", err);
                });
                return socket;
            }
        }
        return agent;
    }();
}

server = http.createServer(function (req, res) {
    console.log("GOT REQUEST");

    var agent = getAgent();
    var postBody = JSON.stringify({});
    var options = {
        hostname: '192.168.1.11',
        port: 80,
        path: '/upload',
        method: 'POST',
        headers: {
            'Content-Type': 'application/json',
            'Content-Length': postBody.length
        },
        agent: agent,
    };

    var backendRequest = http.request(options, function(res) {
        console.log("GOT RESPONSE");
    });
    backendRequest.on("socket", function(socket) {
        console.log("GOT SOCKET");
        socket.on("error", function(err) {
            console.log("SOCKET ERROR", err);
        });
    });
    backendRequest.on("connect", function() {
        console.log("CONNECT");
    });
    backendRequest.on("error", function(e) {
        console.log("ERR", e);
        res.end("watt");
    });
    backendRequest.write(postBody);
});

server.listen(httpPort, httpAddress);
console.log("Server running at http://<ip-address>:" + httpPort + "/");

// execute "curl --max-time 5 http://localhost:8001; curl --max-time 5 http://localhost:8001" on console to trigger error