//TEST mit HTTPS
const WebSocketServer = require('ws').Server,
 // express = require('express'),
  https = require('https'),
 // app = express(),
  fs = require('fs');

//const pkey = fs.readFileSync('lekeys/blacksnail.goip.de-key.pem', 'utf8'),
 //pcert = fs.readFileSync('lekeys/blacksnail.goip.de-crt.pem', 'utf8'),
	//  ca = fs.readFileSync('lekeys/ca-0A0141420000015385736A0B85ECA708-crt.pem', 'utf8'),
const pkey = fs.readFileSync('lekeys/private.pem', 'utf8'),
 pcert = fs.readFileSync('lekeys/certificate.pem', 'utf8'),
	  ca = fs.readFileSync('lekeys/ca_bundle.pem', 'utf8'),	  
//pkey = fs.readFileSync('./ssl/key.pem'),
  //pcert = fs.readFileSync('./ssl/cert.pem'),
  options = {key: pkey, cert: pcert, ca: ca};
var wss = null, sslSrv = null;


// start server (listen on port 443 - SSL)
sslSrv = https.createServer(options).listen(8888);
//sslSrv = https.createServer(options, app).listen(443);
console.log("The HTTPS server is up and running");

// create the WebSocket server
wss = new WebSocketServer({server: sslSrv});  
console.log("WebSocket Secure server is up and running.");

//ORIGINAL ANFANG

//require our websocket library 
//var WebSocketServer = require('ws').Server; 
//creating a websocket server at port 9090 
//var wss = new WebSocketServer({port: 9090}); 
//all connected to the server users 
var users = {}; 
 //ORIGINAL ENDE
//when a user connects to our sever 
wss.on('connection', function(connection){ 
 
    console.log("User connected"); 
 
    //when server gets a message from a connected user 
    connection.on('message', function(message){ 
 
        var data; 
        //accepting only JSON messages 
        try { 
            data = JSON.parse(message); 
        } catch (e) { 
            console.log("Invalid JSON"); 
            data = {}; 
        } 
 
        //switching type of the user message 
        switch (data.type){ 
            //when a user tries to login 
				 case "login": 
                console.log("User logged", data.name); 
                //if anyone is logged in with this username then refuse 
                if(users[data.name]){ 
                    sendTo(connection, { 
                        type: "login", 
                        success: false 
                    }); 
                } else { 
                    //save user connection on the server 
                    users[data.name] = connection; 
                    connection.name = data.name; 
                    sendTo(connection, { 
                        type: "login", 
                        success: true 
                    }); 
                } 
                break; 
 
            case "offer": 
                //for ex. UserA wants to call UserB 
                console.log("Sending offer to: ", data.name); 
                //if UserB exists then send him offer details 
                var conn = users[data.name]; 
                if(conn != null){ 
                    //setting that UserA connected with UserB 
                    connection.otherName = data.name; 
                    sendTo(conn, { 
                        type: "offer", 
                        offer: data.offer, 
                        name: connection.name 
                    }); 
                }
				break; 
 
            case "answer": 
                console.log("Sending answer to: ", data.name); 
                //for ex. UserB answers UserA 
                var conn = users[data.name]; 
                if(conn != null){ 
                    connection.otherName = data.name; 
                    sendTo(conn, { 
                        type: "answer", 
                        answer: data.answer 
                    }); 
                } 
                break; 
 
            case "candidate": 
                console.log("Sending candidate to:",data.name); 
                var conn = users[data.name]; 
 
                if(conn != null){ 
                    sendTo(conn, { 
                        type: "candidate", 
                        candidate: data.candidate 
                    }); 
                } 
                break; 
 
            case "leave": 
                console.log("Disconnecting from", data.name); 
                var conn = users[data.name]; 
              // conn.otherName = null; 
                //notify the other user so he can disconnect his peer connection 
                if(conn != null){
					 sendTo(conn, { 
                        type: "leave" 
                    }); 
                } 
 //location.reload();
                break; 
 
            default: 
                sendTo(connection, { 
                    type: "error", 
                    message: "Command not found: " + data.type 
                }); 
                break; 
        } 
 
    }); 
 
    //when user exits, for example closes a browser window 
    //this may help if we are still in "offer","answer" or "candidate" state 
    connection.on("close", function(){ 
        if(connection.name){ 
            delete users[connection.name]; 
            if(connection.otherName){ 
                console.log("Disconnecting from ", connection.otherName); 
                var conn = users[connection.otherName]; 
                conn.otherName = null; 
 
                if(conn != null){ 
                    sendTo(conn, { 
                        type: "leave" 
                    }); 
                }
				 } 
        } 
    }); 
 
//    connection.send("Hello world"); 
 
}); 
 
function sendTo(connection, message){ 
    connection.send(JSON.stringify(message)); 
}