SYBD_2024/ConstructionFirmBusinessLogic/BusinessLogics/SpecialtyLogic.cs

using Subd_4.BindingModels;
using Subd_4.BusinessLogicContracts;
using Subd_4.SearchModels;
using Subd_4.StoragesContracts;
using Subd_4.ViewModels;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConstructionFirmBusinessLogic.BusinessLogics
{
    public class SpecialtyLogic : ISpecialtyLogic
    {
        private readonly ISpecialtyStorage _SpecialtyStorage;

        public SpecialtyLogic(ISpecialtyStorage specialtyStorage)
        {
            _SpecialtyStorage = specialtyStorage;
        }
        public SpecialtyViewModel? ReadElement(SpecialtySearchModel model)
        {
            if (model == null)
            {
                throw new ArgumentNullException(nameof(model));
            }

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

        public List<SpecialtyViewModel>? ReadList(SpecialtySearchModel? model)
        {
            var list = model == null ? _SpecialtyStorage.GetFullList() : _SpecialtyStorage.GetFilteredList(model);
            if (list == null)
            {
                return null;
            }
            return list;
        }

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

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

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

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

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