nus-mtp/attack-on-tutor

angular.module('lobbyApp', ['ngSanitize']);

//Factory for wrapping socketio as listeners are async and require manually updating angular.
angular.module('lobbyApp').factory('socket', function ($rootScope, $window) {
    var connect = function (namespace) {
        return io.connect(namespace, {
           query: 'namespace=' + namespace
        });
    }

    var connectionStates = [
        'pending',
        'invalid',
        'connected'
    ];
    var connectionState = connectionStates[0];

    var socket = connect('/' + 'lobby');
    var userType = '';

    var socketGroups = [];
    var allSocketGroups = [];
    
    return {
        //Connection State functions
        getConnectionState: function () {
            return connectionState;
        },
        setConnectionState: function (value) {
            connectionState = value;
        },
        PENDING: function() {
            return connectionStates[0];
        },
        INVALID: function() {
            return connectionStates[1];
        },
        CONNECTED: function () {
            return connectionStates[2];
        },
        //User Type functions
        getUserType: function () {
            return userType;
        },
        setUserType: function (type) {
            userType = type;
        },
        //Socket Group functions
        addSocketGroup: function (groupName) {
            socketGroups.push (groupName);
        },
        removeSocketGroup: function (groupName) {
            var index = socketGroups.indexOf (groupName);
            if (index > -1) {
                socketGroups.splice(index, 1);
            }
        },
        getSocketGroups: function () {
            return socketGroups;
        },
        setAllSocketGroups: function (allGroups) {
            allSocketGroups = allGroups;
        },
        getAllSocketGroups: function () {
            return allSocketGroups;
        },
        socketId: function () {
            return socket.nsp + '#' + socket.id;
        },
        //Wrappers for Socket IO client functions.
        on: function (eventName, callback) {
            socket.on (eventName, function () {  
                var args = arguments;
                $rootScope.$apply (function () {
                    callback.apply (socket, args);
                });
            });
        },
        emit: function (eventName, data, callback) {
            socket.emit(eventName, data, function () {
                var args = arguments;
                $rootScope.$apply (function () {
                    if (callback) {
                        callback.apply (socket, args);
                    }
                });
            })
        }
    };    
});

//Directive for calling function on enter key
//Usage:
//        ng-enter="functionName()"
angular.module('lobbyApp').directive ('ngEnter', function () {
    return function (scope, element, attrs) {
        element.bind("keydown keypress", function (event) {
            if (event.which === 13) {
                scope.$apply(function (){
                    scope.$eval(attrs.ngEnter);
                });
                event.preventDefault();
            }
        });
    };
});