'use strict';


var app = window.app || {};
var socket;
app.isConnected = false;

(function () {
	var reconnecting = false;

	var ioParams = {
		reconnectionAttempts: config.maxReconnectionAttempts,
		reconnectionDelay: config.reconnectionDelay,
		transports: config.socketioTransports,
		path: config.relative_path + '/socket.io',
	};

	socket = io(config.websocketAddress, ioParams);

	if (parseInt(app.user.uid, 10) >= 0) {
		addHandlers();
	}

	function addHandlers() {
		socket.on('connect', onConnect);

		socket.on('reconnecting', function () {
			// Wait 2s before firing
			setTimeout(function () {
				if (socket.disconnected) {
					onReconnecting();
				}
			}, 2000);
		});

		socket.on('disconnect', onDisconnect);

		socket.on('reconnect_failed', function () {
			// Wait ten times the reconnection delay and then start over
			setTimeout(socket.connect.bind(socket), parseInt(config.reconnectionDelay, 10) * 10);
		});

		socket.on('checkSession', function (uid) {
			if (parseInt(uid, 10) !== parseInt(app.user.uid, 10)) {
				app.handleInvalidSession();
			}
		});

		socket.on('setHostname', function (hostname) {
			app.upstreamHost = hostname;
		});

		socket.on('event:banned', onEventBanned);

		socket.on('event:alert', app.alert);
	}

	function onConnect() {
		app.isConnected = true;

		if (!reconnecting) {
			app.showMessages();
			$(window).trigger('action:connected');
		}

		if (reconnecting) {
			var reconnectEl = $('#reconnect');
			var reconnectAlert = $('#reconnect-alert');

			reconnectEl.tooltip('destroy');
			reconnectEl.html('<i class="fa fa-check"></i>');
			reconnectAlert.fadeOut(500);
			reconnecting = false;

			reJoinCurrentRoom();

			socket.emit('meta.reconnected');

			$(window).trigger('action:reconnected');

			setTimeout(function () {
				reconnectEl.removeClass('active').addClass('hide');
			}, 3000);
		}
	}

	function reJoinCurrentRoom() {
		var	url_parts = window.location.pathname.slice(config.relative_path.length).split('/').slice(1);
		var room;

		switch (url_parts[0]) {
		case 'user':
			room = 'user/' + (ajaxify.data ? ajaxify.data.theirid : 0);
			break;
		case 'topic':
			room = 'topic_' + url_parts[1];
			break;
		case 'category':
			room = 'category_' + url_parts[1];
			break;
		case 'recent':
			room = 'recent_topics';
			break;
		case 'unread':
			room = 'unread_topics';
			break;
		case 'popular':
			room = 'popular_topics';
			break;
		case 'admin':
			room = 'admin';
			break;
		case 'categories':
			room = 'categories';
			break;
		}
		app.currentRoom = '';
		app.enterRoom(room);
	}

	function onReconnecting() {
		reconnecting = true;
		var reconnectEl = $('#reconnect');
		var reconnectAlert = $('#reconnect-alert');

		if (!reconnectEl.hasClass('active')) {
			reconnectEl.html('<i class="fa fa-spinner fa-spin"></i>');
			reconnectAlert.fadeIn(500).removeClass('hide');
		}

		reconnectEl.addClass('active').removeClass('hide').tooltip({
			placement: 'bottom',
		});
	}

	function onDisconnect() {
		$(window).trigger('action:disconnected');
		app.isConnected = false;
	}

	function onEventBanned(data) {
		var message = data.until ? '[[error:user-banned-reason-until, ' + $.timeago(data.until) + ', ' + data.reason + ']]' : '[[error:user-banned-reason, ' + data.reason + ']]';

		bootbox.alert({
			title: '[[error:user-banned]]',
			message: message,
			closeButton: false,
			callback: function () {
				window.location.href = config.relative_path + '/';
			},
		});
	}
}());