public async Task <DomainValidationResult <Credential> > LinkCredentialAsync(UserId userId, Game game)
{
var result = new DomainValidationResult <Credential>();
if (await _gameCredentialRepository.CredentialExistsAsync(userId, game))
{
return(result.AddFailedPreconditionError($"{game} credential are already linked."));
}
if (!await _gameAuthenticationService.AuthenticationExistsAsync(userId, game))
{
return(result.AddFailedPreconditionError($"{game} authentication process not started."));
}
var authFactor = await _gameAuthenticationService.FindAuthenticationAsync(userId, game);
var authResult = await _gameAuthenticationService.ValidateAuthenticationAsync(userId, game, authFactor);
if (!authResult.IsValid)
{
foreach (var error in authResult.Errors)
{
result.AddFailedPreconditionError(error.ErrorMessage);
}
}
if (result.IsValid)
{
var credential = new Credential(
userId,
game,
authFactor.PlayerId,
new UtcNowDateTimeProvider());
_gameCredentialRepository.CreateCredential(credential);
await _gameCredentialRepository.UnitOfWork.CommitAsync();
return(credential);
}
return(result);
}
