public void CreateSubmission(int contest_id, int problem_no, SubmissionFormData submission_data)
{
// important: submission_repository must be initialized using this.context
SubmissionRepository submission_repository = new SubmissionRepository(context);
Contest contest = context.Contests.Include(x => x.Problems).FirstOrDefault(x => x.Id == contest_id);
if (contest.EndDate < DateTime.Now)
{
throw new InvalidOperationException("Can not create submission to contest that has ended");
}
if (contest.StartDate > DateTime.Now)
{
throw new InvalidOperationException("Can not create submission to contest that has not started");
}
ContestProblem contest_problem = contest.Problems.FirstOrDefault(x => x.Order == problem_no);
Problem problem = contest_problem.Problem;
submission_repository.OnSubmissionStatusChange += (Object sender, ExecutionResultEventArgs args) => {
// the submission entry is updated by SubmissionRepository,
// this handler only updates the contestant
// replace with real user
var contestant = context.Contestants.Include(x => x.Submissions).First(x => x.Contest.Id == contest_id);
contestant.Penalty = contest_service.CalclatePenalty(contestant.Submissions);
contestant.SolveCount = context.ContestProblems.Count(x => x.Submissions.
Count(y => y.Submission.Status.Id == Verdict.Accepted) > 0);
context.SaveChanges();
};
User submitter = context.Users.First();
Submission submission = submission_repository.CreateProblemSubmission(problem.Id, submission_data);
ContestSubmission contest_submission = new ContestSubmission()
{
Submitter = context.Contestants.First(x => x.Contest.Id == contest_id && x.User.Id == submitter.Id),
Problem = contest_problem,
Submission = submission,
};
contest.Submissions.Add(contest_submission);
context.SaveChanges();
}