PIbd-31_Egorov_M.A._COP_34/Components/BusinessLogic/BusinessLogic/DepartmentTypeLogic.cs

using Contracts.BindingModels;
using Contracts.BusinessLogicContracts;
using Contracts.SearchModels;
using Contracts.StorageContracts;
using Contracts.ViewModels;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace BusinessLogic.BusinessLogic
{
    public class DepartmentTypeLogic : IDepartmentTypeLogic
    {
        private readonly IDepartmentTypeStorage _orgTypeStorage;

        public DepartmentTypeLogic(IDepartmentTypeStorage orgTypeStorage)
        {
            _orgTypeStorage = orgTypeStorage;
        }

        public List<DepartmentTypeViewModel>? ReadList(DepartmentTypeSearchModel? model)
        {
            var list = model == null ? _orgTypeStorage.GetFullList() : _orgTypeStorage.GetFilteredList(model);

            if (list == null)
            {
                return null;
            }
            return list;
        }

        public DepartmentTypeViewModel? ReadElement(DepartmentTypeSearchModel? model)
        {
            if (model == null)
            {
                throw new ArgumentNullException(nameof(model));
            }

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

        public bool Create(DepartmentTypeBindingModel model)
        {
            CheckModel(model);
            if (_orgTypeStorage.Insert(model) == null)
            {
                return false;
            }
            return true;
        }
        public bool Update(DepartmentTypeBindingModel model)
        {
            CheckModel(model);
            if (_orgTypeStorage.Update(model) == null)
            {
                return false;
            }
            return true;
        }
        public bool Delete(DepartmentTypeBindingModel model)
        {
            CheckModel(model, false);
            if (_orgTypeStorage.Delete(model) == null)
            {
                return false;
            }
            return true;
        }

        private void CheckModel(DepartmentTypeBindingModel model, bool withParams = true)
        {
            if (model == null)
            {
                throw new ArgumentNullException(nameof(model));
            }
            if (!withParams)
            {
                return;
            }
            if (string.IsNullOrEmpty(model.Name))
            {
                throw new ArgumentException("Введите название доставки", nameof(model.Name));
            }
        }
    }
}