private void DownloadFile(PodcastDownloadModel podcastDownloadModel)
        {
            if (podcastDownloadModel.FileExists)
            {
                return;
            }

            State = podcastDownloadModel.EpisodeName;
            ItemDownloading?.Invoke();

            using (var client = new WebClient())
            {
                client.DownloadFile(podcastDownloadModel.DownloadUrl, podcastDownloadModel.LocalFilePath);
            }
        }
        private void CheckFilePath(PodcastDownloadModel podcastDownloadModel)
        {
            var timeStampAppend = string.Empty;

            if (podcastDownloadModel.EpisodeDate.HasValue)
            {
                timeStampAppend = $" - [{podcastDownloadModel.EpisodeDate.Value.DateTime:yyyy-MM-dd}]";
            }

            var fileName      = $"{podcastDownloadModel.EpisodeNumber}{timeStampAppend} - {podcastDownloadModel.EpisodeName}";
            var fileExtension = podcastDownloadModel.DownloadUrl.Split(".").Last();

            var fileNameWithExtension = $"{fileName}.{fileExtension}".ReplaceInvalidChars();

            var localFile = $"{_options.OutputPath}\\{fileNameWithExtension}";

            var exists = File.Exists(localFile);

            podcastDownloadModel.LocalFilePath = localFile;
            podcastDownloadModel.FileExists    = exists;
        }