NodeBB/public/src/forum/footer.js

(function() {
	var num_users = document.getElementById('number_of_users'),
		post_stats = document.getElementById('post_stats'),
		latest_user = document.getElementById('latest_user'),
		active_users = document.getElementById('active_users'),
		user_label = document.getElementById('user_label'),
		active_record = document.getElementById('active_record'),
		right_menu = document.getElementById('right-menu');

	socket.emit('user.count', {});
	socket.on('user.count', function(data) {
		num_users.innerHTML = "We currently have <b>" + data.count + "</b> registered users.";
	});

	socket.emit('post.stats');
	socket.on('post.stats', function(data) {
		post_stats.innerHTML = "Our users have created <b>" + data.topics + "</b> topics and made <b>" + data.posts + "</b> posts.";
	});

	socket.emit('user.latest', {});
	socket.on('user.latest', function(data) {
		if (data.username == '') {
			latest_user.innerHTML = '';
		} else {
			latest_user.innerHTML = "The most recent user to register is <b><a href='/users/"+data.userslug+"'>" + data.username + "</a></b>.";
		}
	});

	socket.emit('api:user.active.get');
	socket.on('api:user.active.get', function(data) {

		var plural_users = parseInt(data.users) !== 1,
			plural_anon = parseInt(data.anon) !== 1;

		active_users.innerHTML = 'There ' + (plural_users ? 'are' : 'is') + ' <strong>' + data.users + '</strong> user' + (plural_users ? 's' : '') + ' and <strong>' + data.anon + '</strong> guest' + (plural_anon ? 's' : '') + ' online';
	});

	socket.emit('api:user.active.get_record');
	socket.on('api:user.active.get_record', function(data) {
		active_record.innerHTML = "most users ever online was <strong>" + data.record + "</strong> on <strong>" + (new Date(parseInt(data.timestamp,10))).toUTCString() + "</strong>";
	});

	socket.emit('api:updateHeader', { fields: ['username', 'picture', 'userslug'] });

	socket.on('api:updateHeader', function(data) {

		jQuery('#search-button').on('click', function() {
			jQuery('#search-fields').removeClass('hide').show();
			jQuery(this).hide();
			jQuery('#search-fields input').focus()

			jQuery('#search-form').on('submit', function() {
				jQuery('#search-fields').hide();
				jQuery('#search-button').show();
			});

			$('#search-fields input').on('blur', function() {
				$('#search-fields').hide();
				$('#search-button').show();
			});
		});

		var rightMenu = $('#right-menu'),
			isLoggedIn = data.uid > 0;

		if (isLoggedIn) {
			jQuery('.nodebb-loggedin').show();
			jQuery('.nodebb-loggedout').hide();

			var userLabel = rightMenu.find('#user_label');
			if(userLabel.length) {
				if(data['userslug'])
					userLabel.attr('href','/users/' + data['userslug']);
				if(data['picture'])
					userLabel.find('img').attr('src',data['picture']);
				if(data['username'])
					userLabel.find('span').html(data['username']);
			} else {
				var userli = $('<li> \
									<a id="user_label" href="/users/'+data['userslug']+'"> \
										<img src="'+data['picture']+'"/> \
										<span>'+data['username']+'</span> \
									</a> \
								</li>');
				rightMenu.append(userli);

				var logoutli = $('<li><a href="' + RELATIVE_PATH + '/logout">Log out</a></li>');
				rightMenu.append(logoutli);
			}
		} else {
			$('#search-button').hide();
			jQuery('.nodebb-loggedin').hide();
			jQuery('.nodebb-loggedout').show();

			rightMenu.html('');

			var registerEl = document.createElement('li'),
				loginEl = document.createElement('li');

			registerEl.innerHTML = '<a href="/register">Register</a>';
			loginEl.innerHTML = '<a href="/login">Login</a>';

			right_menu.appendChild(registerEl);
			right_menu.appendChild(loginEl);
		}
	});

	// Notifications dropdown
	var notifContainer = document.getElementsByClassName('notifications')[0],
		notifTrigger = notifContainer.querySelector('a'),
		notifList = document.getElementById('notif-list'),
		notifIcon = document.querySelector('.notifications a i');
	notifTrigger.addEventListener('click', function(e) {
		e.preventDefault();
		if (notifContainer.className.indexOf('open') === -1) {
			socket.emit('api:notifications.get', null, function(data) {
				var	notifFrag = document.createDocumentFragment(),
					notifEl = document.createElement('li'),
					numRead = data.read.length,
					numUnread = data.unread.length,
					x;
				notifList.innerHTML = '';
				if ((data.read.length + data.unread.length) > 0) {
					for(x=0;x<numUnread;x++) {
						notifEl.setAttribute('data-nid', data.unread[x].nid);
						notifEl.className = 'unread';
						notifEl.innerHTML = '<a href="' + data.unread[x].path + '"><span class="pull-right">' + utils.relativeTime(data.unread[x].datetime, true) + '</span>' + data.unread[x].text + '</a>';
						notifFrag.appendChild(notifEl.cloneNode(true));
					}
					for(x=0;x<numRead;x++) {
						notifEl.setAttribute('data-nid', data.read[x].nid);
						notifEl.className = '';
						notifEl.innerHTML = '<a href="' + data.read[x].path + '"><span class="pull-right">' + utils.relativeTime(data.read[x].datetime, true) + '</span>' + data.read[x].text + '</a>';
						notifFrag.appendChild(notifEl.cloneNode(true));
					}
				} else {
					notifEl.innerHTML = '<a>You have no notifications</a>';
					notifFrag.appendChild(notifEl);
				}
				notifList.appendChild(notifFrag);

				if (data.unread.length > 0) notifIcon.className = 'icon-circle active';
				else notifIcon.className = 'icon-circle-blank';

				socket.emit('api:notifications.mark_all_read', null, function() {
					notifIcon.className = 'icon-circle-blank';
					utils.refreshTitle();
				});
			});
		}
	});

	notifList.addEventListener('click', function(e) {
		var target;
		switch(e.target.nodeName) {
			case 'SPAN': target = e.target.parentNode.parentNode; break;
			case 'A': target = e.target.parentNode; break;
			case 'li': target = e.target; break;
		}
		if (target) {
			var nid = parseInt(target.getAttribute('data-nid'));
			if (nid > 0) socket.emit('api:notifications.mark_read', nid);
		}
	});

	socket.on('event:new_notification', function() {
		document.querySelector('.notifications a i').className = 'icon-circle active';
		app.alert({
			alert_id: 'new_notif',
			title: 'New notification',
			message: 'You have unread notifications.',
			type: 'warning',
			timeout: 2000
		});
		utils.refreshTitle();
	});


	socket.on('chatMessage', function(data) {

		require(['chat'], function(chat) {
			var modal = null;
			if(chat.modalExists(data.fromuid)) {
				modal = chat.getModal(data.fromuid);
				chat.appendChatMessage(modal, data.message, data.timestamp);
			} else {
				modal = chat.createModal(data.username, data.fromuid);
			}

			chat.load(modal.attr('UUID'));
		});
	});

	require(['mobileMenu'], function(mobileMenu) {
		mobileMenu.init();
	});
}());