(function () {
    'use strict';
    //showcase service
    var serviceId = 'adminService';
    angular.module('app').factory(serviceId, ['DSCacheFactory', admin]);
    
    //admin related service
    function admin(DSCacheFactory) {
        var groupIsDefault = false;
        var adminCache = 'adminCache';
        var currentGroupName = "currentGroup";
        createAdminCache();

        var service = {
            getCurrentGroup: getCurrentGroup,
            setCurrentGroup: setCurrentGroup,
            setGroupIsDefault: setGroupIsDefault,
            getGroupIsDefault:getGroupIsDefault
        };

        function setGroupIsDefault(val) {
            groupIsDefault = val;
        }

        function getGroupIsDefault() {
            return groupIsDefault;
        }

        return service;

        //we use DSCache to cache user's data
        function createAdminCache() {
            var cache = DSCacheFactory(adminCache, { storageMode: 'localStorage' });
            cache.setOptions({
                maxAge: 300000,
                deleteOnExpire: 'aggressive'
            });
        }

        //what is the current showcase for the user
        function getCurrentGroup() {
            var cache = DSCacheFactory.get(adminCache);
            if(cache)
                return cache.get(currentGroupName);
            return null;
        }
        //set the current showcase for the user
        function setCurrentGroup(theGroup) {
            DSCacheFactory.get(adminCache).put(currentGroupName, theGroup);
        }
    }
})();