"use strict";

var usersController = {};

var async = require('async'),
	user = require('./../user'),
	db = require('./../database');

usersController.getOnlineUsers = function(req, res, next) {
	var	websockets = require('../socket.io');

	user.getUsersFromSet('users:online', 0, 49, function (err, users) {
		if(err) {
			return next(err);
		}
		var onlineUsers = [],
			uid = 0;

		if (req.user) {
			uid = req.user.uid;
		}

		user.isAdministrator(uid, function (err, isAdministrator) {
			if(err) {
				return next(err);
			}

			if (!isAdministrator) {
				users = users.filter(function(item) {
					return item.status !== 'offline';
				});
			}

			function updateUserOnlineStatus(user, next) {
				var online = websockets.isUserOnline(user.uid);
				if (!online) {
					db.sortedSetRemove('users:online', user.uid);
					return next();
				}

				onlineUsers.push(user);
				next();
			}

			var anonymousUserCount = websockets.getOnlineAnonCount();

			async.each(users, updateUserOnlineStatus, function(err) {
				if (err) {
					return next(err);
				}

				db.sortedSetCard('users:online', function(err, count) {
					if (err) {
						return next(err);
					}

					var userData = {
						search_display: 'none',
						loadmore_display: count > 50 ? 'block' : 'hide',
						users: onlineUsers,
						anonymousUserCount: anonymousUserCount,
						show_anon: anonymousUserCount?'':'hide'
					};

					res.render('users', userData);
				});
			});
		});
	});
};

usersController.getUsersSortedByPosts = function(req, res, next) {
	getUsers('users:postcount', res, next);
};

usersController.getUsersSortedByReputation = function(req, res, next) {
	getUsers('users:reputation', res, next);
};

usersController.getUsersSortedByJoinDate = function(req, res, next) {
	getUsers('users:joindate', res, next);
};

function getUsers(set, res, next) {
	user.getUsersFromSet(set, 0, 49, function (err, data) {
		if (err) {
			return next(err);
		}

		db.sortedSetCard(set, function(err, count) {
			if (err) {
				return next(err);
			}

			var userData = {
				search_display: 'none',
				loadmore_display: count > 50 ? 'block' : 'hide',
				users: data,
				show_anon: 'hide'
			};

			res.render('users', userData);
		});
	});
}

usersController.getUsersForSearch = function(req, res, next) {
	var data = {
		search_display: 'block',
		loadmore_display: 'none',
		users: [],
		show_anon: 'hide'
	};

	res.render('users', data);
};



module.exports = usersController;