PIbd-23_Mochalov_D.V._LawFirm/LawFirm/LawFirmBusinessLogic/BusinessLogics/BlankLogic.cs

using LawFirmContracts.BindingModels;
using LawFirmContracts.BusinessLogicContracts;
using LawFirmContracts.SearchModels;
using LawFirmContracts.StorageContracts;
using LawFirmContracts.ViewModels;
using Microsoft.Extensions.Logging;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;


namespace LawFirmBusinessLogic.BusinessLogics
{
    public class BlankLogic : IBlankLogic
    {
        private readonly ILogger _logger;
        private readonly IBlankStorage _blankStorage;

        public BlankLogic (ILogger<BlankLogic> logger, IBlankStorage blankStorage)
        {
            _logger = logger;
            _blankStorage = blankStorage;
        }

        public bool Create(BlankBindingModel model)
        {   
            CheckModel(model);
            if (_blankStorage.Insert(model) == null)
            {
                _logger.LogWarning("Insert operation failed");
                return false;
            }
            return true;
        }

        public bool Delete(BlankBindingModel model)
        {
            CheckModel(model, false);
            _logger.LogInformation("Delete. Id:{Id}", model.Id);
            if (_blankStorage.Delete(model) == null)
            {
                _logger.LogWarning("Delete operation failed");
                return false;
            }
            return true;
        }

        public BlankViewModel? ReadElement(BlankSearchModel model)
        {
            if (model == null)
            {
                throw new ArgumentNullException(nameof(model));
            }
            _logger.LogInformation("ReadElement. BlankName:{BlankName}.Id:{ Id}", model.BlankName, model.Id);
            var element = _blankStorage.GetElement(model);
            if (element == null)
            {
                _logger.LogWarning("ReadElement element not found");
                return null;
            }
            _logger.LogInformation("ReadElement find. Id:{Id}", element.Id);
            return element;

        }

        public List<BlankViewModel>? ReadList(BlankSearchModel? model)
        {
            _logger.LogInformation("ReadList. BlankName:{BlankName}.Id:{ Id}", model?.BlankName, model?.Id);
            var list = model == null ? _blankStorage.GetFullList() : _blankStorage.GetFilteredList(model);
            if (list == null)
            {
                _logger.LogWarning("ReadList return null list");
                return null;
            }
            _logger.LogInformation("ReadList. Count:{Count}", list.Count);
            return list;
        }

        public bool Update(BlankBindingModel model)
        {
            CheckModel(model);
            if (_blankStorage.Update(model) == null)
            {
                _logger.LogWarning("Update operation failed");
                return false;
            }
            return true;
        }

        private void CheckModel(BlankBindingModel model, bool withParams = true)
        {
            if (model == null)
            {
                throw new ArgumentNullException(nameof(model));
            }
            if (!withParams)
            {
                return;
            }
            if (string.IsNullOrEmpty(model.BlankName))
            {
                throw new ArgumentNullException("Нет названия бланка", nameof(model.BlankName));
            }
            if (model.Cost <= 0)
            {
                throw new ArgumentNullException("Цена бланка должна быть больше 0", nameof(model.Cost));
            }
            _logger.LogInformation("Blank. BlankName:{BlankName}.Cost:{ Cost}. Id: { Id}", model.BlankName, model.Cost, model.Id);
             var element = _blankStorage.GetElement(new BlankSearchModel
            {
                 BlankName = model.BlankName
             });
            if (element != null && element.Id != model.Id)
            {
                throw new InvalidOperationException("Бланк с таким названием уже есть");
            }
        }

    }
}