public Duel CreateDuel(string userId, string image, string photoId, int challengeId)
{
var user = _dbService.ById <User>(userId, false);
// load current duel if it exists
var currentDuel = _dbService.Collection <Duel>().FirstOrDefault(Duel.IsCurrentDuelOf(userId));
if (currentDuel != null && !currentDuel.IsPublic)
{
throw new InvalidOperationException("У вас уже есть текущая дуэль");
}
if (photoId.Length > 300)
{
throw new ArgumentException("PhotoId is too long");
}
if (!_socialService.CheckImageUrl(image))
{
throw new ArgumentException("Image url is invalid");
}
if (!_contentService.HasChallengeId(challengeId))
{
throw new ArgumentException("Wrong challengeId");
}
if (!user.ChallengeIds.Contains(challengeId))
{
throw new ArgumentException("This challengeId was not assigned to this user");
}
// create new duel object
var duel = new Duel
{
ChallengeId = challengeId,
Creator = new Duellist
{
Image = image,
PhotoId = photoId,
Time = Utils.Now(),
User = user.ToMeta(),
Voters = new List <UserMeta>()
},
Opponent = null,
Status = DuelStatus.Created,
IsPublic = false,
TimeStart = 0,
TimeFinish = 0,
Id = Utils.RandomString(8)
};
// write to database
_dbService.Update(duel);
// return
return(duel);
}