120 lines
4.2 KiB
C#
120 lines
4.2 KiB
C#
using ComputersShopContracts.BindingModels;
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using ComputersShopContracts.BusinessLogicContracts;
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using ComputersShopContracts.SearchModels;
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using ComputersShopContracts.StoragesContracts;
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using ComputersShopContracts.ViewModels;
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using Microsoft.Extensions.Logging;
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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namespace ComputersShopBusinessLogic.BusinessLogics
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{
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public class ComputerLogic : IComputerLogic
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{
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private readonly ILogger _logger;
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private readonly IComputerStorage _computerStorage;
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public ComputerLogic(ILogger<ComputerLogic> logger, IComputerStorage computerStorage)
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{
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_logger = logger;
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_computerStorage = computerStorage;
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}
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public List<ComputerViewModel>? ReadList(ComputerSearchModel? model)
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{
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_logger.LogInformation("ReadList. ComputerName:{ComputerName}.Id:{ Id}", model?.ComputerName, model?.Id);
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var list = model == null ? _computerStorage.GetFullList() : _computerStorage.GetFilteredList(model);
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if (list == null)
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{
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_logger.LogWarning("ReadList return null list");
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return null;
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}
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_logger.LogInformation("ReadList. Count:{Count}", list.Count);
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return list;
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}
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public ComputerViewModel? ReadElement(ComputerSearchModel model)
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{
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if (model == null)
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{
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throw new ArgumentNullException(nameof(model));
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}
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_logger.LogInformation("ReadElement. ComputerName:{ComputerName}.Id:{ Id}", model.ComputerName, model.Id);
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var element = _computerStorage.GetElement(model);
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if (element == null)
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{
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_logger.LogWarning("ReadElement element not found");
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return null;
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}
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_logger.LogInformation("ReadElement find. Id:{Id}", element.Id);
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return element;
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}
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public bool Create(ComputerBindingModel model)
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{
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CheckModel(model);
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if (_computerStorage.Insert(model) == null)
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{
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_logger.LogWarning("Insert operation failed");
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return false;
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}
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return true;
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}
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public bool Update(ComputerBindingModel model)
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{
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CheckModel(model);
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if (_computerStorage.Update(model) == null)
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{
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_logger.LogWarning("Update operation failed");
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return false;
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}
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return true;
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}
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public bool Delete(ComputerBindingModel model)
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{
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CheckModel(model, false);
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_logger.LogInformation("Delete. Id:{Id}", model.Id);
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if (_computerStorage.Delete(model) == null)
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{
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_logger.LogWarning("Delete operation failed");
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return false;
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}
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return true;
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}
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private void CheckModel(ComputerBindingModel model, bool withParams = true)
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{
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if (model == null)
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{
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throw new ArgumentNullException(nameof(model));
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}
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if (!withParams)
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{
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return;
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}
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if (string.IsNullOrEmpty(model.ComputerName))
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{
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throw new ArgumentNullException("Нет названия компьютера", nameof(model.ComputerName));
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}
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if (model.Price <= 0)
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{
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throw new ArgumentNullException("Цена компьютера должна быть больше 0", nameof(model.Price));
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}
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_logger.LogInformation("Computer. ComputerName:{ComputerName}.Cost:{ Cost}. Id: { Id}", model.ComputerName, model.Price, model.Id);
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var element = _computerStorage.GetElement(new ComputerSearchModel
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{
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ComputerName = model.ComputerName
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});
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if (element != null && element.Id != model.Id)
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{
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throw new InvalidOperationException("Компьютер с таким названием уже есть");
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}
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}
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}
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}
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