SUBD_SushiBar/SushiBar/SushiBarBusinessLogic/BusinessLogics/CookLogic.cs

using SushiBarContracts.BindingModels;
using SushiBarContracts.BusinessLogicContracts;
using SushiBarContracts.SearchModels;
using SushiBarContracts.StoragesContracts;
using SushiBarContracts.ViewModels;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace SushiBarBusinessLogic.BusinessLogics
{
    public class CookLogic : ICookLogic
    {
        private readonly ICookStorage _cookStorage;

        public CookLogic(ICookStorage cookStorage)
        {
            _cookStorage = cookStorage;
        }
        public CookViewModel? ReadElement(CookSearchModel model)
        {
            if (model == null)
            {
                throw new ArgumentNullException(nameof(model));
            }

            var element = _cookStorage.GetElement(model);
            if (element == null)
            {
                return null;
            }
            return element;
        }

        public List<CookViewModel>? ReadList(CookSearchModel? model)
        {
            var list = model == null ? _cookStorage.GetFullList() : _cookStorage.GetFilteredList(model);
            if (list == null)
            {
                return null;
            }
            return list;
        }

        public bool Create(CookBindingModel model)
        {
            CheckModel(model);
            if (_cookStorage.Insert(model) == null)
            {
                return false;
            }
            return true;
        }

        public bool Delete(CookBindingModel model)
        {
            CheckModel(model, false);
            if (_cookStorage.Delete(model) == null)
            {
                return false;
            }
            return true;
        }

        public bool Update(CookBindingModel model)
        {
            CheckModel(model);
            if (_cookStorage.Update(model) == null)
            {
                return false;
            }
            return true;
        }

        private void CheckModel(CookBindingModel model, bool withParams = true)
        {
            if (model == null)
            {
                throw new ArgumentNullException(nameof(model));
            }
            if (!withParams)
            {
                return;
            }
            if (string.IsNullOrEmpty(model.CookName))
            {
                throw new ArgumentNullException("Нет названия", nameof(model.CookName));
            }
        }

        public void ClearEntity()
        {
            _cookStorage.ClearEntity();
        }
    }
}