115 lines
2.9 KiB
C#
115 lines
2.9 KiB
C#
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using ComputerShopContracts.BindingModels;
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using ComputerShopContracts.BusinessLogicContracts;
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using ComputerShopContracts.SearchModels;
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using ComputerShopContracts.StorageContracts;
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using ComputerShopContracts.ViewModels;
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using Microsoft.Extensions.Logging;
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namespace ComputerShopBusinessLogic.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 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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var List = (Model == null) ? _componentStorage.GetFullList() : _componentStorage.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 ComponentViewModel? ReadElement(ComponentSearchModel Model)
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{
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if (Model == null)
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throw new ArgumentNullException(nameof(Model));
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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 component not found");
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return null;
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}
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_logger.LogInformation("ReadElement component found. 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) is 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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throw new ArgumentNullException(nameof(Model));
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if (!WithParams)
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return;
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if (string.IsNullOrEmpty(Model.ComponentName))
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throw new ArgumentException($"У комплектующей отсутствует название");
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if (Model.Cost <= 0)
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throw new ArgumentException("Цена комплектующей должна быть больше 0", nameof(Model.Cost));
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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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throw new InvalidOperationException("Комплектующая с таким названием уже есть");
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}
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}
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}
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