const cfg = require('./config');

const fs = require('fs');

const CCRelay = require('./ccrelay');
const CCHub = require('./cchub');


var hub = new CCHub('ws://' + cfg.server + ':' + cfg.server_port);
var relays = {};
var suffix = 0;
var subnet = "";

hub.ready.then(() => {
	console.log('Connecting to CCM Hub ' + cfg.server + '...');
	hub.hello(cfg.login || {});
});

hub.onPartyJoin = function(mysubnet, mysuffix) {
	suffix = mysuffix;
	subnet = mysubnet;
	console.log('Join successful. Game IP should be ' + subnet+suffix);
	console.log('Please wait until all match members have joined before starting game');
	if (cfg.write_override_ini) {
		var override =
			'[netenv]\n' +
			'enable=1\n' +
			'forcebind=1\n' +
			'addrSuffix=' + suffix + '\n' +
			'[keychip]\n' +
			'subnet=' + subnet + '0\n';
		fs.writeFileSync(cfg.write_override_ini, override);
	}
}

hub.onPartyUpdate = function(members) {
	members.forEach(dst => {
		console.log(subnet+dst + ' joined virtual party.');
		var relay = new CCRelay(subnet+dst);
		relay.bindUDP(50200);
		relay.listenTCP(50200);
		relay.onReceive = function(sport, dport, type, msg) {
			hub.sendNetForward(suffix, dst, sport, dport, type, msg);
		}
		relays[dst] = relay;
	});
}

hub.onNetForward = function(src, dst, sport, dport, type, msg) {
	var relay = relays[src];
	if (!relay) {
		console.warn('Received fwd from unknown host ' + src);
		return;
	}
	if (type == 'tcp') {
		relay.sendTCP(subnet+dst, sport, dport, msg)
	} else if (type == 'udp') {
		relay.sendUDP(subnet+dst, sport, dport, msg);
	}
};