internal ChallengePreview(ICtfChallenge challenge, TimeSpan elapsed, EnumDisplayConverter enumCv, int?score, bool?solved)
{
this.Id = challenge.Id;
this.Title = challenge.Title;
this.CategoryId = challenge.Category.Id;
this.Difficulty = enumCv.Convert(challenge.Difficulty);
this.Description = challenge.Description;
if (challenge.Hints != null)
{
this.Hints = challenge.Hints
.Where(x => x.ReleaseTime <= elapsed)
.Select(x => x.Contents)
.ToList();
}
if (challenge.Attachments != null)
{
this.Attachments = challenge.Attachments
.Select(x => new ChallengeAttachmentPreview(x))
.ToList();
}
if (challenge.Endpoint != null)
{
this.Endpoint = EndpointToString(challenge.Endpoint);
}
this.Score = score ?? challenge.BaseScore;
this.IsSolved = solved;
}
public async Task <ScoreInfo> ComputeCurrentScoreAsync(ICtfChallenge challenge, CancellationToken cancellationToken = default)
{
using var _ = await this.ScoreLockService.AcquireLockAsync(challenge.Id, cancellationToken);
var solves = await this.ChallengeCacheRepository.IncrementSolveCountAsync(challenge.Id, cancellationToken);
var baseline = await this.ChallengeCacheRepository.GetBaselineSolveCountAsync(cancellationToken);
var rate = solves / (double)baseline;
var postRate = (solves + 1.0) / baseline;
var cscore = this.ScoringModel.ComputeScore(challenge.BaseScore, rate);
var pscore = this.ScoringModel.ComputeScore(challenge.BaseScore, postRate);
await this.ChallengeCacheRepository.UpdateScoreAsync(challenge.Id, pscore, cancellationToken);
return(new ScoreInfo(cscore, pscore));
}
internal ChallengePreview(ICtfChallenge challenge, TimeSpan elapsed, EnumDisplayConverter enumCv)
: this(challenge, elapsed, enumCv, null)
{
}
/// <summary> /// Converts a <see cref="ICtfChallenge"/> to its abridged variant. /// </summary> /// <param name="challenge">Challenge to convert.</param> /// <param name="elapsed">Time elapsed since the beginning of the event.</param> /// <param name="score">Current score for this challenge.</param> /// <param name="solved">Whether the currently-logged in user's team solved the challenge.</param> /// <returns>An abridged challenge.</returns> public ChallengePreview GetChallenge(ICtfChallenge challenge, TimeSpan elapsed, int?score, bool?solved) => new ChallengePreview(challenge, elapsed, this.EnumDisplayConverter, score, solved);
/// <summary> /// Converts a <see cref="ICtfChallenge"/> to its abridged variant. /// </summary> /// <param name="challenge">Challenge to convert.</param> /// <param name="elapsed">Time elapsed since the beginning of the event.</param> /// <param name="score">Current score for this challenge.</param> /// <returns>An abridged challenge.</returns> public ChallengePreview GetChallenge(ICtfChallenge challenge, TimeSpan elapsed, int?score) => this.GetChallenge(challenge, elapsed, score, null);
/// <summary> /// Converts a <see cref="ICtfChallenge"/> to its abridged variant. /// </summary> /// <param name="challenge">Challenge to convert.</param> /// <param name="elapsed">Time elapsed since the beginning of the event.</param> /// <returns>An abridged challenge.</returns> public ChallengePreview GetChallenge(ICtfChallenge challenge, TimeSpan elapsed) => this.GetChallenge(challenge, elapsed, null);
