public async Task Delete(Concept concept)
{
var games = await gameRepository.GetGamesWithConcept(concept.Id);
if (games.Any())
{
string message = $"Games: {string.Join(Environment.NewLine, games.Select(x => $"Created by {x.Owner} in {x.CreationDate.ToShortDateString()} ({x.Percentage})"))}";
throw new DeleteDependencyException(nameof(Concept), message);
}
await conceptRepository.DeleteConcept(concept);
await unitOfWork.CompleteAsync();
}