const net	= require('net');
const fs	= require('fs');

const srv = net.createServer(socket => {
	const statusOk = Buffer.alloc(8);
	let	menuStatus = 0;

	socket.on('data', data => {

		if (data[0] === 3 && menuStatus === 0)
			socket.end("Not implemented: Short status queue");

		if (data[0] === 4 && menuStatus === 0)
			socket.end("Not implemented: Long status queue");

		if (data[0] === 2 && menuStatus === 0) {
			console.log("Print request recieved, sending StatusOk");
			socket.write(statusOk);
			menuStatus++;
			return;
		};

	       	if (data[0] === 2 && menuStatus === 1) {
			console.log("Print request SubMenu 1, sending StatusOk");
			socket.write(statusOk);
			menuStatus++;
			return;
		};

		if (data[0] === 72 && menuStatus === 2) {
			console.log("Print request SubMenu 2, sending StatusOk");
                        socket.write(statusOk);
			menuStatus++;
			return;
		};

		if (data[0] === 3 && menuStatus === 3) {
			console.log("Print request SubMenu 3, sending StatusOk");
			socket.write(statusOk);
			menuStatus++;
			return;
		};

		if (menuStatus === 4) {
			console.log("Print request SubMenu 3, sending StatusOk");
			socket.write(statusOk);
			menuStatus = 0;

			fs.writeFile("test.pdf", data.slice(0, data.length - 1), err => {
				if (err) console.log(err.message);
			});

			return;
		};

	});

	socket.on('drain', () => {
		console.log("Socket drained");
	});

	socket.on('close', () => {
		console.log("Socket closed");
	});

	socket.on('end', () => {
                console.log("Socket ended");
	});

	socket.on('error', err => {
		if (err.code === "ECONNRESET") {
			console.log("ERROR: Connection reset by peer");
		} else {
			console.log(`ERROR: unknown ${JSON.stringify(err)}`);
		};
	});
});

srv.on('connection', () => {
	console.log('Client connected..');
});

srv.listen(515,'192.168.192.110', () => {
	console.log("LDP running");
});