const net = require('net');

let server =  net.createServer();
let clientId = 1;
let sockets = {};

server.on("connection", (cs) => {
	// console.log(Object.keys(cs));
	console.log("INFO: Client conected!");

	cs.clientId = clientId;
	clientId++;

	cs.write(`[${cs.clientId}] Please enter your name: `);

	cs.on("data", (buffer) => {
		msg = buffer.toString();

		if (!cs.clientName) {
			console.log(`DEBUG: [${cs.clientId}] Client sent name >>>> ` + msg);
			cs.clientName = buffer.toString().trim();
			sockets[cs.clientId] = cs;
			cs.write(`[${cs.clientId}] Welcome [${cs.clientName}] \r\n`);
		}
		else {
			console.log(`DEBUG: [${cs.clientId}] Client sent message > ` + msg);
			Object.keys(sockets).forEach ( id => {
				console.log(id, cs.clientId, id !== cs.clientId)  // !!! problem: it displays "2 2 true" !!!

				if (id !== cs.clientId) {
					d = new Date();
					sockets[id].write(`[${d.getHours() + ":" + d.getMinutes() + ":" + d.getSeconds()}] [${cs.clientId}] [${cs.clientName}] ${msg}\r\n`);
				}

			});

			// cs.write(`[${cs.clientId}] ${msg} \r\n`);
		}
	});

	cs.on("error", ()=> {
		console.log("INFO: Client error occured");
		consle.log(err.stack)
		// delete session
	});

	cs.on('end', () => {
		console.log("INFO: Client disconnected ")
	});


});

server.listen(8080, () => console.log("INFO: Server started"));

process.on("SIGINT", () => {
	console.log("Server stopping...")
	process.exit();
});

process.on("exit", () => console.log("Server stopped"));