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server.js
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server.js
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'use strict';
/**
* Module dependencies.
*/
var init = require('./config/init')(),
config = require('./config/config'),
mongoose = require('mongoose'),
chalk = require('chalk');
/**
* Main application entry file.
* Please note that the order of loading is important.
*/
// Bootstrap db connection
var db = mongoose.connect(config.db, function(err) {
if (err) {
console.error(chalk.red('Could not connect to MongoDB!'));
console.log(chalk.red(err));
}
});
// Init the express application
var app = require('./config/express')(db);
// Bootstrap passport config
require('./config/passport')();
// Start the app by listening on <port>
app.get('server').listen(config.port);
var Course = mongoose.model('Course');
// tack out socket instance from the app container
var io = app.get('socketio');
io.sockets.on('connection', function(socket){
socket.on('test socket', function(data){
io.sockets.emit('send test back', data);
}); // emit an event for all connected clients
socket.on('start-question', function(question, index, courseId){
io.sockets.emit('send-question-to-all', question, index, courseId);
});
socket.on('send-answer', function(ansId, userId, courseId) {
io.sockets.emit('receive-student-answer', ansId, userId, courseId);
});
//on recieving current time from client
socket.on('current-time', function(time, courseId){
//send curr time back to all clients
io.sockets.emit('current-time-from-server', time, courseId);
});
socket.on('end-question', function(question, courseId){
io.sockets.emit('remove-question', question, courseId);
});
socket.on('join-course', function(courseId, userId) {
Course.findById(courseId).exec(function(err, course) {
if (err) socket.emit('join-status', userId, false);
if (!course) socket.emit('join-status', userId, false);
var joined = false;
for (var i in course.roster) {
if (course.roster[i] === userId) {
joined = true;
console.log('Already joined, betch');
}
}
if (!joined)
course.roster.push(userId);
course.save(function(err) {
if (err)
io.sockets.emit('join-status', userId, false);
else {
io.sockets.emit('join-status', userId, true);
console.log('Success!');
}
});
});
});
});
// Expose app
exports = module.exports = app;
// Logging initialization
console.log('MEAN.JS application started on port ' + config.port);