protected override async Task buildViewModelPosts(IEnumerable <IPost> posts)
        {
            clear(UnfilteredItems);
            clear(FilteredItems);

            var rawPosts = posts as IList <IPost> ?? posts.ToList();
            var schedule = new Schedule();

            var vms             = new List <VkPostViewModel>();
            var freshViewModels = await _postBuilder.BuildAsync(rawPosts);

            vms.AddRange(freshViewModels.Cast <VkPostViewModel>());

            vms.Where(post => {
                var vmPost = post;
                if (vmPost == null)
                {
                    return(false);
                }
                return(IsDateMatchTheSchedule(vmPost.Post.Date, schedule));
            }).ForEach(post => {
                var vmPost = post;
                if (vmPost == null)
                {
                    return;
                }
                vmPost.Mark = PostMark.Good;
            });

            vms.Sort((a, b) => b.Post.Date.CompareTo(a.Post.Date));

            UnfilteredItems.Clear();
            UnfilteredItems.AddRange(vms);
            filterOut(vms);
        }
        protected override async Task buildViewModelPosts(IEnumerable <IPost> posts)
        {
            var sw = Stopwatch.StartNew();

            clear(UnfilteredItems);
            clear(FilteredItems);

            var rawPosts = posts as IList <IPost> ?? posts.ToList();
            var schedule = new Schedule();

            var vms             = new List <VkPostViewModel>();
            var freshViewModels = await _postBuilder.BuildAsync(rawPosts);

            vms.AddRange(freshViewModels.Cast <VkPostViewModel>());

            vms.Where(post => {
                var vmPost = post;
                if (vmPost == null)
                {
                    return(false);
                }
                return(IsDateMatchTheSchedule(vmPost.Post.Date, schedule));
            }).ForEach(post => {
                var vmPost = post;
                if (vmPost == null)
                {
                    return;
                }
                vmPost.Mark = PostMark.Good;
            });

#pragma warning disable 4014
            _postBuilder.GetOwnerNamesOfPosts(vms.Where(post => post.PostType == PostType.Repost).ToList());
#pragma warning restore 4014

            var missingFiller = new MissingFiller();
            var missingDates  = await missingFiller.GetMissingDates(rawPosts, schedule);

            var missingPosts = missingFiller.BuildMissingViewModels(missingDates).ToList();

            missingPosts.ForEach(p => p.UploadRequested += onMissingPostRequestedUpload);

            vms.AddRange(missingPosts);
            vms.Sort((a, b) => a.Post.Date.CompareTo(b.Post.Date));

            UnfilteredItems.Clear();
            UnfilteredItems.AddRange(vms);
            filterOut(vms);
            sw.Stop();
            Debug.WriteLine($"Потребовалось времени для билда: {sw.ElapsedMilliseconds}");
        }