public static void SubmitScore(string courseId, Slide slide, string userId, Visit visit = null)
{
var db = new ULearnDb();
var ltiRequestsRepo = new LtiRequestsRepo(db);
var consumersRepo = new ConsumersRepo(db);
var visitsRepo = new VisitsRepo(db);
var ltiRequest = ltiRequestsRepo.Find(courseId, userId, slide.Id);
if (ltiRequest == null)
{
throw new Exception("LtiRequest for user '" + userId + "' not found");
}
var consumerSecret = consumersRepo.Find(ltiRequest.ConsumerKey).Secret;
var score = visit?.Score ?? visitsRepo.GetScore(courseId, slide.Id, userId);
log.Info($"Надо отправить результаты слайда {slide.Id} пользователя {userId} по LTI. Нашёл LtiRequest: {ltiRequest.JsonSerialize()}");
UriBuilder uri;
try
{
uri = new UriBuilder(ltiRequest.LisOutcomeServiceUrl);
}
catch (Exception e)
{
log.Error($"Неверный адрес отправки результатов по LTI: {ltiRequest.LisOutcomeServiceUrl}", e);
throw;
}
if (uri.Host == "localhost")
{
uri.Host = "192.168.33.10";
uri.Port = 80;
uri.Scheme = "http";
}
var maxScore = ControllerUtils.GetMaxScoreForUsersSlide(slide, true, false, false);
var outputScore = score / (double)maxScore;
log.Info($"Отправляю результаты на {ltiRequest.LisOutcomeServiceUrl}: {score} из {maxScore} ({outputScore})");
/* Sometimes score is bigger then slide's MaxScore, i.e. in case of manual checking */
if (score > maxScore)
{
outputScore = 1;
}
var result = OutcomesClient.PostScore(uri.ToString(), ltiRequest.ConsumerKey, consumerSecret,
ltiRequest.LisResultSourcedId, outputScore);
if (!result.IsValid)
{
throw new Exception(uri + "\r\n\r\n" + result.Message);
}
}