96 lines
3.8 KiB
C#
96 lines
3.8 KiB
C#
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using DinerContracts.BindingModels;
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using DinerContracts.BusinessLogicsContacts;
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using DinerContracts.SearchModels;
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using DinerContracts.StoragesContracts;
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using DinerContracts.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 DineryBusinessLogic.BusinessLogic
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{
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public class SnackLogic : ISnackLogic
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{
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private readonly ILogger _logger;
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private readonly ISnackStorage _productStorage;
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public SnackLogic(ILogger<SnackLogic> logger, ISnackStorage productStorage) {
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_logger = logger;
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_productStorage = productStorage;
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}
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public bool Create(SnackBindingModel model)
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{
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CheckModel(model);
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if (_productStorage.Insert(model) == null) {
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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(SnackBindingModel 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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_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 SnackViewModel? ReadElement(SnackSearchModel model)
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{
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if (model == null) throw new ArgumentNullException(nameof(model));
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_logger.LogInformation("ReadElement. ProductName:{ProductName}. ID:{ID}", model.ProductName, model.ID);
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var element = _productStorage.GetElement(model);
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if (element == null) {
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_logger.LogWarning("ReadElement. elementn 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<SnackViewModel>? ReadList(SnackSearchModel? model)
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{
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_logger.LogInformation("ReadList. ProductName:{ProductName}. ID:{ID}", model?.ProductName, 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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_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(SnackBindingModel model)
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{
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CheckModel(model);
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if (_productStorage.Update(model) == null) {
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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(SnackBindingModel model, bool withParams = true) {
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if (model == null) throw new ArgumentNullException(nameof(model));
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if (!withParams) return;
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if (string.IsNullOrEmpty(model.ProductName))
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throw new ArgumentNullException("Нет названия продукта", nameof(model.ProductName));
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if (model.Price <= 0)
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throw new ArgumentNullException("Цена продукта должна быть больше 0", nameof(model.Price));
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_logger.LogInformation("Product. ProductName:{ProductName}. Price:{Price}. ID:{ID}",
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model.ProductName, model.Price, model.Price);
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var element = _productStorage.GetElement(new SnackSearchModel { ProductName = model.ProductName });
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if (element != null && element.ID != model.ID)
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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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