private TwitterUserStatistic CreateOrUpdateUserStatistic(string twitter_nick, string topPositiveWordsJson, string topNegativeWordsJson)
{
var existedStatistic = _context.TwitterUserStatistics.FirstOrDefault(stat => stat.TwitterNick.Equals(twitter_nick));
if (existedStatistic == null)
{
existedStatistic = new TwitterUserStatistic()
{
TwitterNick = twitter_nick,
LastUpdated = DateTime.Now,
TopPositiveWordsJson = topPositiveWordsJson,
TopNegativeWordsJson = topNegativeWordsJson
};
_context.TwitterUserStatistics.Add(existedStatistic);
}
else
{
existedStatistic.LastUpdated = DateTime.Now;
existedStatistic.TopNegativeWordsJson = topPositiveWordsJson;
existedStatistic.TopNegativeWordsJson = topNegativeWordsJson;
_context.TwitterUserStatistics.Update(existedStatistic);
}
_context.SaveChanges();
return(existedStatistic);
}
public ActionResult <PredictionDTO> GetUserPrediction(string twitter_nick, int count)
{
if (string.IsNullOrEmpty(twitter_nick) || count == 0)
{
return(BadRequest());
}
var analytics = UserRecentAnalytics(twitter_nick);
if (analytics != null)
{
var response = new PredictionDTO()
{
ActivityChartPath = $"/output/activity_{twitter_nick}.png",
PieChartPath = $"/output/piechart_{twitter_nick}.png",
LastModified = analytics.LastUpdated,
TopPositiveWordsJson = analytics.TopPositiveWordsJson,
TopNegativeWordsJson = analytics.TopNegativeWordsJson
};
return(Ok(response));
}
else
{
try
{
string link = $"http://localhost:5000/api/analytics?twitter_nick={twitter_nick}&count={count}";
string predictionResponse = HttpSender.SendHttpRequest(new Uri(link), "POST");
dynamic parsedResponse = JsonConvert.DeserializeObject(predictionResponse);
TwitterUserStatistic statistic = CreateOrUpdateUserStatistic(
twitter_nick,
double.Parse(parsedResponse["good"].ToString()),
double.Parse(parsedResponse["bad"].ToString()));
var response = new PredictionDTO()
{
ActivityChartPath = $"/output/activity_{twitter_nick}.png",
PieChartPath = $"/output/activity_{twitter_nick}.png",
LastModified = statistic.LastUpdated,
TopPositiveWordsJson = analytics.TopPositiveWordsJson,
TopNegativeWordsJson = analytics.TopNegativeWordsJson
};
return(Ok(response));
}
catch (Exception ex)
{
return(BadRequest(ex.Message));
}
}
}