lca2020-pay-it-forward/plugin/notes-server/index.js

70 lines
1.8 KiB
JavaScript

var http = require('http');
var express = require('express');
var fs = require('fs');
var io = require('socket.io');
var Mustache = require('mustache');
var app = express();
var staticDir = express.static;
var server = http.createServer(app);
io = io(server);
var opts = {
port : 1947,
baseDir : __dirname + '/../../'
};
io.on( 'connection', function( socket ) {
socket.on( 'new-subscriber', function( data ) {
socket.broadcast.emit( 'new-subscriber', data );
});
socket.on( 'statechanged', function( data ) {
delete data.state.overview;
socket.broadcast.emit( 'statechanged', data );
});
socket.on( 'statechanged-speaker', function( data ) {
delete data.state.overview;
socket.broadcast.emit( 'statechanged-speaker', data );
});
});
[ 'css', 'js', 'images', 'plugin', 'lib' ].forEach( function( dir ) {
app.use( '/' + dir, staticDir( opts.baseDir + dir ) );
});
app.get('/', function( req, res ) {
res.writeHead( 200, { 'Content-Type': 'text/html' } );
fs.createReadStream( opts.baseDir + '/index.html' ).pipe( res );
});
app.get( '/notes/:socketId', function( req, res ) {
fs.readFile( opts.baseDir + 'plugin/notes-server/notes.html', function( err, data ) {
res.send( Mustache.to_html( data.toString(), {
socketId : req.params.socketId
}));
});
});
// Actually listen
server.listen( opts.port || null );
var brown = '\033[33m',
green = '\033[32m',
reset = '\033[0m';
var slidesLocation = 'http://localhost' + ( opts.port ? ( ':' + opts.port ) : '' );
console.log( brown + 'reveal.js - Speaker Notes' + reset );
console.log( '1. Open the slides at ' + green + slidesLocation + reset );
console.log( '2. Click on the link in your JS console to go to the notes page' );
console.log( '3. Advance through your slides and your notes will advance automatically' );