112 lines
4.2 KiB
C#
112 lines
4.2 KiB
C#
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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using ComputersShopContracts.BusinessLogicsContracts;
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using ComputersShopContracts.BindingModels;
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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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namespace ComputersShopBusinessLogic.BusinessLogics
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{
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public class ComponentLogic : IComponentLogic
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{
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private readonly ILogger _logger;
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private readonly IComponentStorage _componentStorage;
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public ComponentLogic(ILogger<ComponentLogic> logger, IComponentStorage componentStorage)
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{
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_logger = logger;
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_componentStorage = componentStorage;
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}
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public List<ComponentViewModel>? ReadList(ComponentSearchModel? model)
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{
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_logger.LogInformation("ReadList. ComponentName:{ComponentName}. Id:{Id}", model?.ComponentName, model?.Id);
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var list = model == null ? _componentStorage.GetFullList() : _componentStorage.GetFiltredList(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 ComponentViewModel? ReadElement(ComponentSearchModel 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. ComponentName:{ComponentName}. Id:{Id}", model.ComponentName, model.Id);
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var element = _componentStorage.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(ComponentBindingModel model)
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{
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CheckModel(model);
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if (_componentStorage.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(ComponentBindingModel model)
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{
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CheckModel(model);
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if (_componentStorage.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(ComponentBindingModel 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 (_componentStorage.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(ComponentBindingModel 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.ComponentName))
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{
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throw new ArgumentNullException("Нет названия компонента", nameof(model.ComponentName));
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}
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if (model.Cost <= 0)
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{
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throw new ArgumentNullException("Цена должна быть больше 0", nameof(model.Cost));
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}
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_logger.LogInformation("Component. ComponentName:{ComponentName}. Cost:{Cost}. Id:{Id}", model.ComponentName, model.Cost, model.Id);
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var element = _componentStorage.GetElement(new ComponentSearchModel
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{
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ComponentName = model.ComponentName
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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("Компонент с таким названием уже есть");
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}
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}
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}
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} |