/// <summary>
/// Creates a burger if the name is unique otherwise throws an exception
/// </summary>
/// <param name="burgerData"></param>
/// <returns></returns>
public Burger AddBurger(Burger burgerData)
{
var exists = _repo.GetBurgerByName(burgerData.Name);
if (exists != null)
{
throw new Exception("This burger already exists.");
}
burgerData.Id = Guid.NewGuid().ToString();
_repo.Create(burgerData);
return(burgerData);
}