PIbd-22_Shabunov_O.A._SushiBar/SushiBarBusinessLogic/IngredientLogic.cs

using SushiBarContracts.BindingModels;
using SushiBarContracts.SearchModels;
using SushiBarContracts.ViewModels;
using SushiBarDatabaseImplement.Storages;

namespace SushiBarBusinessLogic
{
    public class IngredientLogic
    {
        private readonly IngredientStorage _ingredientStorage;

        public IngredientLogic(IngredientStorage IngredientStorage)
        {
            _ingredientStorage = IngredientStorage;
        }

        public List<IngredientViewModel>? ReadList(IngredientSearchModel? Model)
        {
            var List = Model is null ? _ingredientStorage.GetFullList() : _ingredientStorage.GetFilteredList(Model);

            if (List is null)
            {
                return null;
            }
            return List;
        }

        public IngredientViewModel? ReadElement(IngredientSearchModel? Model)
        {
            if (Model is null)
                throw new ArgumentNullException(nameof(Model));

            var Element = _ingredientStorage.GetElement(Model);

            if (Element is null)
            {
                return null;
            }
            return Element;
        }

        public bool Create(IngredientBindingModel Model)
        {
            if (_ingredientStorage.Insert(Model) is null)
            {
                return false;
            }
            return true;
        }

        public bool Update(IngredientBindingModel Model)
        {
            if (_ingredientStorage.Update(Model) is null)
            {
                return false;
            }
            return true;
        }

        public bool Delete(IngredientBindingModel Model)
        {
            if (_ingredientStorage.Delete(Model) is null)
            {
                return false;
            }
            return true;
        }
    }
}