import { spawn } from "child_process";
export default function (req, res) {
	console.log("spawnin");
	//console.log(req.body);
	//file
	let textData = req.body.profil;
	let replacedData = textData.replace(" ", "o").replace(" ", "e");
	console.log(replacedData);

	var fs = require("fs");
	fs.writeFile("P.txt", replacedData, function (err) {
		if (err) {
			return console.error(err);
		}
	});


	// log stats
		let ip = req.body.ip;
		if (ip === undefined)
			ip = req.headers["x-forwarded-for"] + " on " + req.headers["user-agent"];
		let date_time = new Date();
		let string =
			fs.readFileSync("profile_log.txt", "utf8") +
			"\n" +
			"[" +
			date_time +
			"]" +
			ip +
			" : " +
			replacedData 
		fs.writeFile("profile_log.txt", string, function (err) {
			if (err) {
				return console.error(err);
			}
		});


	//py
	let fileName = Math.floor(Math.random() * 9999) + 1000;

	const python = spawn("python3", ["a.py", req.body.arguments.scale, req.body.arguments.elementOne, req.body.arguments.elementTwo]);

	let dataToSend;
	python.stdout.on("data", function (data) {
		console.log("Pipe data from python script ...");
		dataToSend = data.toString();
		console.log(dataToSend);
	});
	python.stderr.on("data", (data) => {
		console.error(`stderr: ${data}`);
		res.send("Py Error: " + data);
	});
	// in close event we are sure that stream from child process is closed
	python.on("close", (code) => {
		console.log(`child process close all stdio with code ${code}`);
		// send data to browser
		console.log(dataToSend);
		console.log("done");
		try {
			res.status(200).send({ filename: fileName, data: dataToSend });
		} catch (e) {
			console.log("child process end");
		}
	});
}