rc-web@72: /*
rc-web@72: ////////////////////////////////////////////
rc-web@72: nodescore server
rc-web@72: nodescore.kiben.net
rc-web@72: nodescore@kiben.net
rc-web@72: ////////////////////////////////////////////
rc-web@72: */
rc-web@72: 
rc-web@72: var sio = require('socket.io')
rc-web@72: , http = require('http')
rc-web@72: , ch = require('./chronometer')
rc-web@72: , url = require('url')
rc-web@72: , path = require('path')
rc-web@72: , fs = require('fs')
rc-web@72: , connect = require('connect')
rc-web@72: , static = require('node-static');
rc-web@72: 
rc-web@72: var mimeTypes = {
rc-web@72:     "html": "text/html",
rc-web@72:     "jpeg": "image/jpeg",
rc-web@72:     "jpg": "image/jpeg",
rc-web@72:     "png": "image/png",
rc-web@72:     "js": "text/javascript",
rc-web@72:     "css": "text/css"};
rc-web@72: 
rc-web@72: var requirejs = require('requirejs');
rc-web@72: 
rc-web@72: requirejs.config({
rc-web@72:     //Pass the top-level main.js/index.js require
rc-web@72:     //function to requirejs so that node modules
rc-web@72:     //are loaded relative to the top-level JS file.
rc-web@72:     nodeRequire: require,
rc-web@72:     findNestedDependencies: true
rc-web@72: });
rc-web@72: 
rc-web@72: var pinging=0
rc-web@72: console.log("ping set to 0")
rc-web@72: 
rc-web@72: // run webserver serving static html
rc-web@72: ////////////////////////////////////////////
rc-web@72: var httpServer = connect()
rc-web@72:   .use(connect.logger('dev'))
rc-web@72:   .use(connect.static('www'))
rc-web@72:   .use(function(req, res){
rc-web@72:     res.end('404\n');
rc-web@72:   })
rc-web@72:  .listen(8890);
rc-web@72: 
rc-web@72: ////////////////////////////////////////////
rc-web@72: // connect to websockets 
rc-web@72: ////////////////////////////////////////////
rc-web@72: 
rc-web@72: 
rc-web@72: io = sio.listen(httpServer)
rc-web@72: , nicknames = {};
rc-web@72: 
rc-web@72: //var sequencer = require('./sequencer')
rc-web@72: 
rc-web@72: io.set('log level', 4); // reduce logging
rc-web@72: io.sockets.on('connection', function (socket) {
rc-web@72: 
rc-web@72:     socket.on('nickname', function (nick, fn) {
rc-web@72: 	if (nicknames[nick]) {
rc-web@72: 	    fn(true);
rc-web@72: 	} else {
rc-web@72: 	    fn(false);
rc-web@72: 	    nicknames[nick] = socket.nickname = nick;
rc-web@72: 	    socket.broadcast.emit('announcement', nick + ' connected');
rc-web@72: 	    io.sockets.emit('nicknames', nicknames);
rc-web@72: 	}
rc-web@72:     });  
rc-web@72:     
rc-web@72:     /// chat user messages to screens and to log file
rc-web@72:     // date format for filename
rc-web@72:     var da = new Date(); var dtstring = da.getFullYear()+ '-' + da.getMonth()+ '-' + da.getDate();
rc-web@72:     ////////////////////////
rc-web@72:     /// log messages to file
rc-web@72:     socket.on('user message', function (msg) {
rc-web@72: 	fs.open('logs/chatlog-'+dtstring+'.txt', 'a', 666, function( e, id ) {	
rc-web@72: 	    //time format for message stamp
rc-web@72: 	    var dt = new Date();var timestring = dt.getHours() + ':' + dt.getMinutes() + ':' + dt.getSeconds();
rc-web@72: 	    socket.broadcast.emit('user message', socket.nickname, msg);	    
rc-web@72: 	    var fs = require('fs'), str = msg;
rc-web@72: 	    fs.write( id, timestring+" " + socket.nickname + ": "+ msg+"\n", null, 'utf8', function(){});
rc-web@72: 	});	
rc-web@72:     });
rc-web@72: 
rc-web@72:     ////////////////////////////////////////////
rc-web@72:     // chronometer + sequencer controls (all this should be modularised)
rc-web@72:     ////////////////////////////////////////////
rc-web@72: 
rc-web@72:     socket.on('stopWatch', function (state) { stopWatch(state);});
rc-web@72:     socket.on('stopChr', function () { stopChr();  });    
rc-web@72:     socket.on('resetChr', function () { resetChr();});
rc-web@72:     socket.on('startSeq', function () { startChr(); });  
rc-web@72:     var chronstate=0;
rc-web@72: 
rc-web@72:     // send the date/time every second
rc-web@72: 
rc-web@72:     xdatetime =  setInterval(function () {
rc-web@72: 	d =  ch.xdateTime()
rc-web@72: 	socket.broadcast.emit('dateTime', d)
rc-web@72: 	socket.emit('dateTime', d)	
rc-web@72:     }, 1000)
rc-web@72:               
rc-web@72:     //////////////////////////////
rc-web@72:     //    /* this should be moved to its own file chronometer.js
rc-web@72:     
rc-web@72:     function chronCtrl (state,interval){
rc-web@72: 	if (state==1){ console.log("chronControl....onestate")
rc-web@72: 		       var date = new Date(); var starttime = new Date().getTime() / 1000;
rc-web@72: 		       xstopwatch =  setInterval(function () {
rc-web@72: 			   var nowtime = new Date().getTime() / 1000;
rc-web@72: 			   now = nowtime-starttime
rc-web@72: 			   hours = parseInt( now / 3600 ) % 24;
rc-web@72: 			   minutes = parseInt( now / 60 ) % 60;
rc-web@72: 			   seconds = parseInt(now  % 60);
rc-web@72: 			   milliseconds = Math.floor((now-seconds)*10)%60;
rc-web@72: 			   time = 
rc-web@72: 			       (hours < 10 ? "0" + hours : hours) + ":" + 
rc-web@72: 			       (minutes < 10 ? "0" + minutes : minutes) + ":" + 
rc-web@72: 			       (seconds  < 10 ? "0" + seconds : seconds) + "."+ 
rc-web@72: 			       milliseconds;
rc-web@72: 			   socket.broadcast.emit('chronFromServer', time)
rc-web@72: 			   socket.emit('chronFromServer', time)
rc-web@72: 		       }, 100)
rc-web@72: 		     }
rc-web@72: 	
rc-web@72: 	if (state==0) { console.log("chronControl....zerostate") ; clearInterval(xstopwatch); }	
rc-web@72:    
rc-web@72:     }
rc-web@72: 
rc-web@72: 
rc-web@72:     // if not already started start the chronometer and sequencer    
rc-web@72:     function startChr(socket) { chronCtrl(1,100); step(seqA);step(seqB); step(seqC); step(seqD); }
rc-web@72:     // stop the chronometer   
rc-web@72:     function stopChr() { console.log("stop chron"); chronCtrl(0); }  
rc-web@72:     
rc-web@72:     function pad(number) { return (number < 10 ? '0' : '') + number }
rc-web@72:     function resetChr() {//clearInterval();
rc-web@72: 	zecsec = 0; seconds = 0; mins = 0; hours = 0; 
rc-web@72: 	var chron = pad(hours) +":"+pad(mins)+ ':'+ pad(seconds)+ ":"+ zecsec
rc-web@72: 	// send 0.00.00 values to display
rc-web@72: 	socket.broadcast.emit('chronFromServer', chron)
rc-web@72: 	socket.emit('chronFromServer', chron)
rc-web@72:     }
rc-web@72: 
rc-web@72:     ////////////////////////////////////////////
rc-web@72:     // magic square sequencer (this should be modularised)
rc-web@72:     ////////////////////////////////////////////
rc-web@72:     // all the variables this sequencer needs are in scoreB.js
rc-web@72:     requirejs(['scoreB'],function(scoreB) {});
rc-web@72:     
rc-web@72:     var sequencerState=0;
rc-web@72:     var numberoftransects=3
rc-web@72:     var order=8
rc-web@72:     var countdowntick=function(seq){
rc-web@72: 	var unit=seq.units[seq.transect%numberoftransects][seq.counter];
rc-web@72: 	var unitlast=seq.units[seq.transect%numberoftransects][seq.counter-1];
rc-web@72: 	var voice=seq.voice;
rc-web@72: 	var tempoms = Math.floor(60000/seq.mm)	
rc-web@72: 	var timemultiplier=1000
rc-web@72: 	var outcount=4; var incount=4;
rc-web@72: 	var dur=srcsqr[Math.floor(unit/order)][unit%order] + 4
rc-web@72: 	var time = dur;
rc-web@72: 	var ztime=time; 
rc-web@72: 	var totaltime=time
rc-web@72: 	initPage=function(seq){
rc-web@72: 	    // initiate first page here
rc-web@72: 	    socket.emit("pageIni", voice, unit, time, seq.mm,seq.counter,seq.nextunit );
rc-web@72: 	    socket.emit("pageFlipfromserver", voice, unit, time, seq.mm,seq.counter,seq.nextunit );
rc-web@72: 	}
rc-web@72: 
rc-web@72: 	function sequenCer() {
rc-web@72: 	    if (ztime >= 0 ){	
rc-web@72: 		var counter = ztime
rc-web@72: 		// flip the page 
rc-web@72: 		if (counter == 0){	
rc-web@72: 		    //increment the row position
rc-web@72: 		    seq.counter = (seq.counter + 1) % (order)	    				
rc-web@72: 		    //increment the transect
rc-web@72: 		    if ( seq.counter==0 ){ seq.transect += 1 }
rc-web@72: 		    socket.broadcast.emit("pageFlipfromserver", voice, unit, time, seq.mm,seq.counter,seq.nextunit);
rc-web@72: 		    clearInterval(pulse)
rc-web@72: 		    step(seq);     
rc-web@72: 		}
rc-web@72: 		
rc-web@72: 		if (counter >= 0 ){
rc-web@72: 		    socket.broadcast.emit('counterText', 
rc-web@72: 					  voice, unit, counter,seq.counter,unitlast,seq.transect%numberoftransects);
rc-web@72: 		    socket.emit('counterText',
rc-web@72: 				voice, unit, counter,seq.counter,unitlast,seq.transect%numberoftransects);
rc-web@72: 		    
rc-web@72: 		    if (counter <= outcount ) {
rc-web@72: 			socket.broadcast.emit('countinFromServer', 
rc-web@72: 					      voice, counter, 
rc-web@72: 					      "","stop in: ", "red", "transparent",unit);
rc-web@72: 			socket.emit('countinFromServer', 
rc-web@72: 				    voice, counter, 
rc-web@72: 				    "","stop in: ", "red", "transparent",unit);
rc-web@72: 		    }
rc-web@72: 		    
rc-web@72: 		    if (counter > (totaltime)-incount  && counter <= totaltime ) {
rc-web@72: 			socket.broadcast.emit('countinFromServer',
rc-web@72: 					      voice, counter-(totaltime-incount), 
rc-web@72: 					      "","play in: ", "green","transparent",unit);
rc-web@72: 			socket.emit('countinFromServer',
rc-web@72: 				    voice,counter-(totaltime-incount), 
rc-web@72: 				    "","play in: ", "green","transparent",unit);
rc-web@72: 		    }
rc-web@72: 		    
rc-web@72: 		    if (counter == (totaltime)-incount ) {
rc-web@72: 			socket.broadcast.emit('countinFromServer',
rc-web@72: 					      voice, "+", 
rc-web@72: 					      "","playing.. ", "green","transparent",unit);
rc-web@72: 			socket.emit('countinFromServer',
rc-web@72: 				    voice, "+",
rc-web@72: 				    "","playing.. ", "green","transparent",unit);
rc-web@72: 		    }
rc-web@72: 		}		    
rc-web@72: 
rc-web@72: 		// on each beat do:		
rc-web@72: 		// push out the pulse to metronome	
rc-web@72: 		seq.metrobeat = (seq.metrobeat+1)%seq.beatsinbar ;
rc-web@72:      		socket.broadcast.emit('metroPulse', tempoms, voice,seq.metrobeat); 
rc-web@72: 		socket.emit('metroPulse', tempoms, voice, seq.metrobeat);
rc-web@72: 	    }
rc-web@72: 	    
rc-web@72: 	    // decrement the time 
rc-web@72: 	    ztime -= 1
rc-web@72: 
rc-web@72: // this shows undefined counter output - bug related	    
rc-web@72: //	    console.log(counter)
rc-web@72: 	}
rc-web@72: 	
rc-web@72: 	var pulse = setInterval(sequenCer, tempoms);
rc-web@72: 	
rc-web@72: 	socket.on('stopSeq', function () {
rc-web@72: 	    sequenCer.clearInterval
rc-web@72: 	    console.log("sequencer stopping...")	    
rc-web@72: 	    // grrr why wont this clearInterval work
rc-web@72: 	    sequencerState = 0
rc-web@72: 	    clearInterval(pulse)
rc-web@72: 	    sequenCer.clearInterval(pulse)
rc-web@72: 	    stopChr();	    
rc-web@72: 	});
rc-web@72:     };
rc-web@72:     
rc-web@72:     step = function (seq) {
rc-web@72: 	clearInterval(countdowntick);
rc-web@72: 	countdowntick(seq)
rc-web@72: 	sequencerState=1;
rc-web@72: 	initPage(seq)
rc-web@72:     };
rc-web@72:     
rc-web@72:     socket.on('resetSeq', function () { resetChr(); });
rc-web@72: 
rc-web@72:     ////////////////////////////////////////////  
rc-web@72:     // some latency calculations
rc-web@72:     ///////////////////////////////////////////
rc-web@72:     
rc-web@72:     /*
rc-web@72:       a ping is periodically broadcast to all connected clients each
rc-web@72:       connected returns a pong to the server via an "emit" and in turn
rc-web@72:       the server returns each unique client a report of the latency
rc-web@72:       via another emit - the emit only sends to the source of the
rc-web@72:       request, whereas the broadcast.emit..  broadcasts.. ie to all
rc-web@72:       connected clients
rc-web@72:       
rc-web@72:       TODO: smooth range and average out results to remove erratic ping
rc-web@72:       times.
rc-web@72: 
rc-web@72:       TODO:
rc-web@72:       The result then needs to be used to stagger outgoing messages to
rc-web@72:       compensate for latency - how much compensation is more connected
rc-web@72:       to the time that any audio/video feed needs to encode/decode as
rc-web@72:       the latency of the route from node A to node B is inavoidable?!
rc-web@72:       so maybe latency is irrelevant in this context - we just need to
rc-web@72:       stagger signals according to encoding decoding times.. hmmm
rc-web@72:     */
rc-web@72: 
rc-web@72: 
rc-web@72: // periodically broadcast a ping
rc-web@72:     function serverTime(freq) {
rc-web@72: 	if (pinging==0){ st = setInterval(function() {
rc-web@72: 	    var pinging=1;
rc-web@72: 	    var d = new Date(); var n = d.getTime(); 
rc-web@72: 	    socket.emit("timeFromServer", n); 
rc-web@72: 	}, 1000);   } else console.log("already pinging")
rc-web@72:     }
rc-web@72:     // receive the pong calculate the latency and
rc-web@72:     // return the response to the client
rc-web@72: 
rc-web@72:     socket.on("clientTimeResponse", function(x) {
rc-web@72: 	var d = new Date(); var n = d.getTime();
rc-web@72: 	var latency = (n-x)/2;
rc-web@72: 	//console.log("SERVERTIME:"+x + " LATENCY:" + latency);
rc-web@72: 	socket.emit("latencyFromServer", latency);
rc-web@72:     });	      
rc-web@72:     
rc-web@72: 
rc-web@72:     
rc-web@72:     serverTime(1000);
rc-web@72:     
rc-web@72:     socket.on('disconnect', function(client) {	
rc-web@72: 	console.log(socket.nickname + " is gone..." )
rc-web@72: 	clearInterval(st);
rc-web@72: 	
rc-web@72: 	if (!socket.nickname) return;
rc-web@72: 	
rc-web@72: 	delete nicknames[socket.nickname];
rc-web@72: 	socket.broadcast.emit('announcement', socket.nickname + ' disconnected');
rc-web@72: 	socket.broadcast.emit('nicknames', nicknames);
rc-web@72:     });
rc-web@72: 
rc-web@72: });
rc-web@72: 
rc-web@72: exports.socket= io.sockets;
rc-web@72: exports.httpServer = httpServer;
rc-web@72: 
rc-web@72: