BirdsiteLIVE/src/BirdsiteLive.Moderation/Processors/TwitterAccountModerationProcessor.cs

using System.Threading.Tasks;

using BirdsiteLive.DAL.Contracts;
using BirdsiteLive.Domain.Repository;
using BirdsiteLive.Moderation.Actions;

namespace BirdsiteLive.Moderation.Processors
{
    public interface ITwitterAccountModerationProcessor
    {
        Task ProcessAsync(ModerationTypeEnum type);
    }

    public class TwitterAccountModerationProcessor : ITwitterAccountModerationProcessor
    {
        private readonly ITwitterUserDal _twitterUserDal;
        private readonly IModerationRepository _moderationRepository;
        private readonly IRemoveTwitterAccountAction _removeTwitterAccountAction;

        #region Ctor
        public TwitterAccountModerationProcessor(
            ITwitterUserDal twitterUserDal,
            IModerationRepository moderationRepository,
            IRemoveTwitterAccountAction removeTwitterAccountAction
        )
        {
            _twitterUserDal = twitterUserDal;
            _moderationRepository = moderationRepository;
            _removeTwitterAccountAction = removeTwitterAccountAction;
        }
        #endregion

        public async Task ProcessAsync(ModerationTypeEnum type)
        {
            if (type == ModerationTypeEnum.None)
                return;

            var twitterUsers = await _twitterUserDal.GetAllTwitterUsersAsync();

            foreach (var user in twitterUsers)
            {
                var userHandle = user.Acct.ToLowerInvariant().Trim();
                var status = _moderationRepository.CheckStatus(
                    ModerationEntityTypeEnum.TwitterAccount,
                    userHandle
                );

                if (
                    type == ModerationTypeEnum.WhiteListing
                        && status != ModeratedTypeEnum.WhiteListed
                    || type == ModerationTypeEnum.BlackListing
                        && status == ModeratedTypeEnum.BlackListed
                )
                    await _removeTwitterAccountAction.ProcessAsync(user);
            }
        }
    }
}