const fs = require('fs');
const https = require('https');
const WebSocket = require('ws');
const url = require('url');
const driverWS = require("./programs/driver");

const httpsOptions = {
  "enable": true,
  'key': fs.readFileSync('https/localhost.key'),
  'cert':  fs.readFileSync('https/localhost.pem'),
  "passphrase":   "abcd" 
}

server = https.createServer(httpsOptions, (req, res) => {
  let parsedURL = url.parse(req.url, true);
  let path = parsedURL.path.replace(/^\/+|\/+$/g,"");
  if(path == ""){ path = "index.html"; }

  
  let file = __dirname + "/public/" + path;
 
  console.log("file : " + file);
  fs.readFile(file, function(err, content){
  if(err){
      console.log("File Not found "+ file);
      res.writeHead(404);
      res.end();
  } else {
      res.setHeader('X-Content-Type-Option', 'nosniff');
      //let mime = lookup(path);
      let mime = "text/html"
      res.writeHead(200,{'Content-type': mime});      
      res.end(content);
  }
  })
});

// vvvvvvvvvvvvvvvvvvvvv Forward WebSocket: Eigener WSS auf Driver vvvvvvvvvvvvvvvvvvvvvvvv
const wssInput = new WebSocket.Server({ noServer: true });
const targetServer = process.env.TARGET_SERVER || 'wss://localhost:2095';
process.env.NODE_TLS_REJECT_UNAUTHORIZED = "0";
driverWS.setupCommandForwarding(wssInput, targetServer);
// ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

// Upgrade handler: accept all WebSocket upgrades and forward to the forwarding server (wssInput)
server.on('upgrade', (req, socket, head) => {
    const pathname = url.parse(req.url).pathname;
    console.log('Upgrade request for', pathname);
    try {
        // Forward the upgrade to the forwarding server
        wssInput.handleUpgrade(req, socket, head, (ws) => {
            wssInput.emit('connection', ws, req);
        });
    } catch (err) {
        console.error('Upgrade handling error:', err && err.message || err);
        socket.destroy();
    }
});

server.listen(10010);
console.log("Connect to: https://localhost:10010")