private DataFeed GetFeeds(IVkDataProvider dataProvider, LikeShareType type, string entityVkId, VkGroup vkGroup, ref int offsetCounter)
        {
            var likesFeed = dataProvider.GetLikes(vkGroup.Id.ToString(), entityVkId, type, offsetCounter);

            if (likesFeed == null)
            {
                return(null);
            }

            this.log.DebugFormat("Like feed is received: {0}", likesFeed.Feed);
            likesFeed.ParentObjectId = entityVkId;
            likesFeed.LikeShareType  = (int)type;
            string newFeed = this.responseMapper.MapResponseObject(likesFeed);

            var dataFeed = new DataFeed
            {
                ReceivedAt      = this.dateTimeHelper.GetDateTimeNow(),
                Feed            = newFeed,
                VkGroupId       = vkGroup.Id,
                RelatedObjectId = entityVkId,
                Type            = DataFeedType.MemberLikes
            };

            if (likesFeed.users[0].uid == null || likesFeed.users[0].uid.Length == 0)
            {
                return(null);
            }

            offsetCounter += likesFeed.users.Length;
            return(dataFeed);
        }
        public IEnumerable <DataFeed> GetFeeds(IVkDataProvider dataProvider, VkGroup vkGroup)
        {
            DateTime?     dateLimit = this.strategy.GetDateLimit(vkGroup.Id, this.ProvidedDataType);
            IList <Video> videos    = this.videoRepository.GetVideosByVkGroupId(vkGroup.Id).Where(v => !dateLimit.HasValue || v.PostedDate > dateLimit).ToList();

            foreach (var video in videos)
            {
                var videoLikes = dataProvider.GetLikes(vkGroup.Id.ToString(), video.VkId, LikeShareType.Video, 0);

                if (videoLikes == null)
                {
                    continue;
                }

                this.log.DebugFormat("Video comments feed is received: {0}", videoLikes.Feed);
                videoLikes.ParentObjectId = video.VkId;
                string newFeed = this.responseMapper.MapResponseObject(videoLikes);

                DataFeed dataFeed = new DataFeed
                {
                    ReceivedAt      = this.dateTimeHelper.GetDateTimeNow(),
                    Feed            = newFeed,
                    VkGroupId       = vkGroup.Id,
                    RelatedObjectId = video.VkId,
                    Type            = DataFeedType.VideoLikes
                };

                yield return(dataFeed);
            }
        }