126 lines
4.3 KiB
C#
126 lines
4.3 KiB
C#
using Contracts.BindingModels;
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using Contracts.BusinessLogicContracts;
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using Contracts.SearchModels;
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using Contracts.StorageContracts;
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using Contracts.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 BusinessLogic.BusinessLogic
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{
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public class ProductLogic : IProductLogic
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{
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private readonly IProductStorage _productStorage;
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private readonly ILogger _logger;
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public ProductLogic(IProductStorage productStorage, ILogger<ProductLogic> logger)
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{
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_productStorage = productStorage;
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_logger = logger;
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}
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public bool Create(ProductBindingModel model)
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{
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CheckModel(model);
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if (_productStorage.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 Delete(ProductBindingModel 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 (_productStorage.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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public ProductViewModel? ReadElement(ProductSearchModel 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. Name:{Name}.Id:{ Id}", model.Name, model.Id);
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var element = _productStorage.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 List<ProductViewModel>? ReadList(ProductSearchModel? model)
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{
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_logger.LogInformation("ReadList. Name:{Name}.Id:{ Id}", model?.Name, model?.Id);
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var list = model == null ? _productStorage.GetFullList() : _productStorage.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 bool Update(ProductBindingModel model)
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{
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CheckModel(model);
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if (_productStorage.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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private void CheckModel(ProductBindingModel 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.Name))
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{
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throw new ArgumentNullException("Нет названия продукта", nameof(model.Name));
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}
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if (model.Price < 0)
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{
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throw new Exception("Цена продукта не может быть ниже нуля");
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}
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if (model.Amount < 0)
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{
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throw new Exception("Кол-во продуктов не может быть ниже нуля");
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}
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if (model.Rate < 0.0 || model.Rate > 5.0)
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{
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throw new Exception("Рейтинг продукта должен быть в пределах от 0.0 до 5.0");
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}
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_logger.LogInformation("Product. ProductName:{Name}.Price:{ Price}. Id: { Id}", model.Name, model.Price, model.Id);
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var element = _productStorage.GetElement(new ProductSearchModel
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{
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Name = model.Name
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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("Продукт 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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