homespeakersServer/remoteOutput.js

const net = require('net');
var clients = {};

function Client(sock) {
	var _this = this;

	this.id = sock.remoteAddress;
	this.name = this.id;
	this.sock = sock;
	this.active = true;
	this.volumeControl = true;
	this.sock.on('data', (data) => {
		var dataStr = data.toString("utf-8");
		dataStr.split(/[\r\n]/).forEach(i => i.length ? _this.onData(i) : i);
	});
	this.sock.on('close', () => {
		if (this.active) {
			delete clients[this.id];
			require("./outputs.js").unregisterOutput(this.id);
		}
	});
	this.radios = {};

	var allRadios = require("./config.js").RADIOS;
	for (var i in allRadios)
		this.radios[i] = {
			address: allRadios[i],
			state: false
		};
	this.sendInputStates();
}

Client.prototype.onData = function(data) {
	if (data.startsWith("HELO"))
		this.name = data.replace(/^HELO\s+/, "") +" (" +this.sock.remoteAddress +")";
}

Client.prototype.getName = function() {
	return this.name;
}

Client.prototype.kill = function() {
	this.sock.destroy();
	this.active = false;
}

Client.prototype.getInputs = function() {
	var result = {};
	for (var i in this.radios)
		result[i] = this.radios[i].state;
	return result;
}

Client.prototype.sendInputStates = function() {
	this.sock.write(JSON.stringify(this.radios) +"\n");
}

Client.prototype.setState = function(inputId, state) {
	if (!this.radios[inputId])
		return false;
	if (this.radios[inputId].state !== !!state) {
		this.radios[inputId].state = !!state;
		this.sendInputStates();
	}
	return true;
}

function onClientConnection(sock) {
	var cli = new Client(sock);
	if (clients[cli.id])
		clients[cli.id].kill();
	clients[cli.id] = cli;
	require("./outputs.js").registerOutput(cli.id, cli);
}

module.exports.init = function() {
	net.createServer(onClientConnection).listen(require('./config.js').TCP_PORT, require('./config.js').TCP_LISTEN);
}