const express = require('express')
const http = require('http')
const WebSocket = require('ws')

const osc = require('osc')

const port = 6676
// Vzemi iz argumenta
const tty = process.argv[2]

const include_files = [
  '/anim.js',
  '/control.js',
  '/test.js',
  '/node_modules/three/build/three.min.js',
  '/node_modules/nouislider/distribute/nouislider.min.js',
  '/node_modules/nouislider/distribute/nouislider.min.css',
  '/node_modules/osc/dist/osc-browser.js'
];

const app = express();
const server = http.Server(app);

// Odprti serijski OSC link
const scon = new osc.SerialPort({
  devicePath: tty,
  bitrate: 115200
})
scon.on('error', e => {
  console.log('tty error', e)
})
scon.open()

app.get('/', (req, res) => {
    res.sendFile(__dirname + '/index.html');
});

app.get('/ctl', (req, res) => {
    res.sendFile(__dirname + '/control.html');
});

app.get('/test', (req, res) => {
    res.sendFile(__dirname + '/test.html');
});

let settings = {};
app.get('/settings', function(req, res) {
    res.send(settings);
});

include_files.map(function(file) {
    app.get(file, function(req, res){
        res.sendFile(__dirname + file);
    });
});

server.listen(port, () => console.log('listening on *:' + port))

// Websocket init
const wss = new WebSocket.Server({ server })

const sendAll = (msg, wss, ws = null) => {
  wss.clients.forEach( client => {
    if (client != ws) {
      client.send(msg)
    }
  })
}

// Debug osc
/*
scon.on('osc', msg => {
  console.log('tty osc', msg.address, ...msg.args.map(val => Math.round(val * 1000) / 1000))
})
*/

wss.on('connection', function (ws) {
  const oscWS = new osc.WebSocketPort({
        socket: ws,
        metadata: true
  });
  
  // Arduino OSC gre v web
  scon.on('osc', msg => {
    switch(msg.address) {
    case '/gyro/':
      const [gx, gy, gz] = msg.args
      sendAll('adjust:rotx:' + gx, wss)
      sendAll('adjust:roty:' + gy, wss)
      sendAll('adjust:rotz:' + gz, wss)
      break;
    case '/quaternion/':
      const [qw, qx, qy, qz] = msg.args
      sendAll('adjust:quaternion:' + [qw, qx, qy, qz].join(':'), wss)
      break;
    case '/accel/':
      const [ax, ay, az] = msg.args
      sendAll('adjust:posx:' + ax, wss)
      sendAll('adjust:posy:' + ay, wss)
      sendAll('adjust:posz:' + az, wss)
      break;
    }
  })

  ws.on('message', (msg) => {
    //console.log('got msg', msg)
    const parts = msg.split(":")
    const cmd = parts[0]

    // Broadcast adjust msg
    switch (cmd) {
    case 'adjust':
      sendAll(msg, wss, ws)
    }
  })
})