private async Task TimeUntilChristmasAsync()
{
DateTime christmasDateTime = new DateTime(DateTime.Now.Year, 12, 25, 0, 0, 0);
DateTime currentDateTime = DateTime.Now;
string tweet = string.Empty;
if (currentDateTime.Date == christmasDateTime.Date)
{
tweet = "Today is Christmas! ";
}
else if (currentDateTime < christmasDateTime)
{
tweet = $"{CalculateTimeBetween(currentDateTime, christmasDateTime)} until Christmas. ";
}
if (tweet.Length > 0)
{
tweet += _twitterService.GetRandomChristmasHashTags();
await _twitterService.PostTweetAsync(tweet);
}
}