public ChallengeTimeline(IDateTimeProvider createdAt, ChallengeDuration duration)
{
CreatedAt = createdAt.DateTime;
Duration = duration;
StartedAt = null;
ClosedAt = null;
}
private ChallengeTimeline(
DateTime createdAt,
ChallengeDuration duration,
DateTime?startedAt,
DateTime?closedAt
) : this(createdAt, duration, startedAt)
{
ClosedAt = closedAt;
}
private ChallengeTimeline(DateTime createdAt, ChallengeDuration duration, DateTime?startedAt)
{
CreatedAt = createdAt;
Duration = duration;
StartedAt = startedAt;
}