AccountingWarehouseProducts_SUBD/AccountingWarehouseProducts/AccountingWarehouseProductsBusinessLogic/BusinessLogic/StandLogic.cs

using AccountingWarehouseProductsContracts.BindingModels;
using AccountingWarehouseProductsContracts.BusinessLogicsContracts;
using AccountingWarehouseProductsContracts.SearchModels;
using AccountingWarehouseProductsContracts.StoragesContracts;
using AccountingWarehouseProductsContracts.ViewModels;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace AccountingWarehouseProductsBusinessLogic.BusinessLogic
{
    public class StandLogic : IStandLogic
    {
        private readonly IStandStorage _standStorage;

        public StandLogic(IStandStorage standStorage)
        {
            _standStorage = standStorage;
        }
        public StandViewModel? ReadElement(StandSearchModel model)
        {
            if (model == null)
            {
                throw new ArgumentNullException(nameof(model));
            }

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

        public List<StandViewModel>? ReadList(StandSearchModel? model)
        {
            var list = model == null ? _standStorage.GetFullList() : _standStorage.GetFilteredList(model);
            if (list == null)
            {
                return null;
            }
            return list;
        }

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

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

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

        private void CheckModel(StandBindingModel model, bool withParams = true)
        {
            if (model == null)
            {
                throw new ArgumentNullException(nameof(model));
            }
            if (!withParams)
            {
                return;
            }
        }
    }
}