public async Task <IActionResult> Create(DifficultyCreateViewModel model)
{
if (!string.IsNullOrEmpty(model.Name) &&
!string.IsNullOrEmpty(model.Color) &&
IsHexColorString(model.Color))
{
_difficultyService.AddDifficulty(model.Name, model.Color);
}
return(RedirectToAction(nameof(Create), "Difficulty"));
}