private async Task <bool> ProcessDeleteTweetEvent(TweetEvent tweetEvent)
{
var tweet = await _tweetRepository.Get(tweetEvent.TweetId);
if (tweet == null)
{
Console.WriteLine("No tweet found");
return(true);
}
var homeTimeLineEntry = new HomeTimeLineEntry
{
TweetId = tweetEvent.TweetId
};
var deletedItems = await _timeLineRepository.DeleteTweetFromHomeTimeLine(tweet.AuthorId, homeTimeLineEntry);
return(deletedItems > 0);
}
// TODO: need to test the NewsFeedTimeLine functionality
public async Task <Result <bool> > ProcessTweetEvent(TweetEvent tweetEvent)
{
if (tweetEvent is null)
{
throw new System.ArgumentNullException(nameof(tweetEvent));
}
var result = new Result <bool>();
var tweet = await _tweetRepository.Get(tweetEvent.TweetId);
if (tweet == null || tweet.Id < 1)
{
Console.WriteLine("Could not find any tweet");
result.SuccessResult = true;
return(result);
}
var userId = tweet.AuthorId;
var followersTask = _followsLogic.GetFollowers(userId);
var followersResult = followersTask.Result;
var userIds = new List <long>();
userIds.Add(userId);
if (followersResult.SuccessResult.IsNotEmpty())
{
userIds.AddRange(followersResult.SuccessResult.Select(follows => follows.FollowerId));
}
if (tweetEvent.Type == TweetEventType.Created)
{
await ProcessCreateTweetEvent(userIds, tweetEvent);
}
else if (tweetEvent.Type == TweetEventType.Deleted)
{
await ProcessDeleteTweetEvent(userIds, tweetEvent);
}
else
{
throw new BusinessException("Unhandled Tweet Event Type");
}
result.SuccessResult = true;
return(result);
}