var express = require('express'),
        app = express(),
        server = require('http').createServer(app),
        io = require('socket.io').listen(server);
var cookieParser = require('cookie-parser');
var bodyParser = require('body-parser');
var cookieSession = require('cookie-session');
var flash = require('connect-flash');
var SnmpMac = require("./snmp-mac");
var IpPoll = require("./ip-poll");
var Flukso = require("./flukso");
var routes = require("./routes");
var path = require('path');
var mqttClient = require('mqtt');

var spaceanswer = {
    api: "0.13",
    ext_ccc: "chaostreff",
    space: "Chaostreff Dortmund",
    logo: "http://www.chaostreff-dortmund.de/logo/logo_ctdo.svg",
    icon: {
        open: "http://status.ctdo.de/img/green.png",
        closed: "http://status.ctdo.de/img/red.png"
    },
    url: "http://www.chaostreff-dortmund.de/",
    location: {
        address: "Braunschweiger Str 22, 44145 Dortmund, Germany",
        lon: 7.4649449,
        lat: 51.527611
    },
    contact: {
        phone: "+49 231 8 404 777",
        irc: "irc://irc.hackint.eu/#ccc.do",
        ml: "discuss@lists.chaostreff-dortmund.de",
        twitter: "@ctdo",
        issue_mail: "server-admin@chaostreff-dortmund.de"
    },
    issue_report_channels: ["issue_mail"],
    state: {
        open: null,
        lastchange: 0,
        icon: {
            open: "http://status.ctdo.de/img/green.png",
            closed: "http://status.ctdo.de/img/red.png"
        }
    },
    feeds: {
        blog: {
            type: "application/rss+xml",
            url: "https://www.chaostreff-dortmund.de/feed/"
        },
        calendar: {
            type: "ical",
            url: "https://calendar.google.com/calendar/ical/chaostreffdortmund%40googlemail.com/public/basic.ics"
        }
    },
    sensors: {
        power_consumption: [{
                unit: "W",
                name: "mains power",
                description: "overall power consumption from our space",
                location: "basement",
                value: 0}]
    }
};
var simpleanswer = {state: "unknown", count: 0, names: [], lastchange: 0, power: 0};
var usercountanswer = {at: 0, current_value: 0, datapoints: [
        {at: 0, value: 0}
    ]};

var snmpMac = new SnmpMac("juni.ctdo.de", "ctdo23");
var ippoll = new IpPoll("flipdot.raum.ctdo.de", "195.160.169.30-120");
var flukso = new Flukso("flukso.raum.ctdo.de", "/sensor/cf00e0b22230f4a8870af58f2b8719dd");
var mqtt = mqttClient.connect('mqtt://raum.ctdo.de');
var connected = false;

var port = '9911';
var address = 'localhost';

snmpMac.on('done', function (res) {
    simpleanswer.names = res;
    simpleanswer.lastchange = new Date().getTime();
});

ippoll.on('doneCount', function (num) {
    simpleanswer.count = num;
    simpleanswer.lastchange = new Date().getTime();
    ippoll.pollState();
});

ippoll.on('doneState', function (state) {
    spaceanswer.state.open = state;
    spaceanswer.state.lastchange = new Date().getTime();
    simpleanswer.state = state;
    simpleanswer.lastchange = spaceanswer.state.lastchange;
    io.sockets.emit('sdata', {data: simpleanswer});
});

flukso.on('done', function (num) {
    simpleanswer.power = num;
    spaceanswer.sensors.power_consumption[0].value = num;
    io.sockets.emit('sdata', {data: simpleanswer});
});

flukso.on('failed', function (error) {
    console.log("Flukso: " + error);
});

mqtt.on('connect', function() {  
  console.log("connected to mqtt");
  mqtt.subscribe('raumstatus/simple');
});

mqtt.on('message', function (topic, message) {  
  if(topic === 'raumstatus/simple') {
    connected = (message.toString() === 'true');
  }
});

function sendSimple () {
  mqtt.publish('raumstatus/simple', JSON.stringify(simpleanswer));
}

function work() {
    snmpMac.poll();
    ippoll.pollCount();
    sendSimple();
}

setInterval(work, 60000);
work();

setInterval(flukso.pollPower, 5000);
flukso.pollPower();

app.set('snmpMac', snmpMac); //TODO: wie kann man das schoener machen? (Modul in die Routes reintun)

app.use(express.static('public'));
app.use(cookieParser());
app.use(bodyParser.urlencoded({ extended: true }));
app.use(bodyParser.json({ extended: true }));
app.use(cookieSession({secret: 'ctdo', cookie: {maxAge: 60000}}));
app.use(flash());

app.set('/views');
app.set('view engine', 'jade');
app.disable('x-powered-by');
app.enable('trust proxy');

app.get('/api/spaceapi/v13', function (req, res) {
    res.setHeader("Access-Control-Allow-Origin", "*");
    res.setHeader("Cache-Control", "no-cache");
    res.send(spaceanswer);
});
app.get('/api/simple/v2', function (req, res) {
    res.setHeader("Access-Control-Allow-Origin", "*");
    res.setHeader("Cache-Control", "no-cache");
    res.send(simpleanswer);
});
app.get('/api/usercount', function (req, res) {
    ippoll.getHistory("-inf", "+inf", function (data) {
        usercountanswer.datapoints.length = 0;
        usercountanswer.at = simpleanswer.lastchange;
        usercountanswer.current_value = simpleanswer.count;
        usercountanswer.datapoints = data;
        res.send(usercountanswer);
    });
});

function getstatusImage(req, res) {
    if (spaceanswer.state.open == true) {
        res.sendFile(path.resolve(__dirname, 'public/img/green.png'));
    } else if (spaceanswer.state.open == false) {
        res.sendFile(path.resolve(__dirname, 'public/img/red.png'));
    } else {
        res.sendFile(path.resolve(__dirname, 'public/img/yellow.png'));
    }
}

app.get('/api/simple/image', function (req, res) {
    getstatusImage(req, res);
});

app.get('/api/simple/image.png', function (req, res) {
    getstatusImage(req, res);
});

app.get('/db', routes.db);
app.post('/form', routes.form);
app.get('/', routes.index);

//server.listen(3000, 'localhost');
var server = server.listen(port, address, function(err) {
   if(err){
    console.log(err);
   }

   var message = 'Server is running @ http://' + address + ':' + port;
   console.log(message);
});