using System;
using Telerik.Sitefinity.Data;
using Telerik.Sitefinity.Security;

namespace SitefinityWebApp
{
    public class OrphanedUserProfilesOperations
    {
        public void DeleteOrphanedUserprofiles()
        {
            var transactionName = string.Concat("DeleteOrphanProfiles", Guid.NewGuid());
            var hasDeletionOccured = false;
            var providers = UserProfileManager.ProvidersCollection;

            foreach (var provider in providers)
            {
                var profileManager = UserProfileManager.GetManager(provider.Name, transactionName);
                var profiles = profileManager.GetUserProfiles();

                foreach (var profile in profiles)
                {
                    if (profile.User == null)
                    {
                        profileManager.Delete(profile);
                        hasDeletionOccured = true;
                    }
                }
            }

            if (hasDeletionOccured)
            {
                TransactionManager.CommitTransaction(transactionName);
            }
        }
    }
}