115 lines
4.1 KiB
C#
115 lines
4.1 KiB
C#
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using Microsoft.Extensions.Logging;
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using SnackBarBusinessLogic.BusinessLogics;
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using SnackBarContracts.BindingModels;
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using SnackBarContracts.BusinessLogicsContracts;
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using SnackBarContracts.SearchModels;
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using SnackBarContracts.StoragesContracts;
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using SnackBarContracts.ViewModels;
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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 SnackBarBusinessLogic.BusinessLogics
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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 _snackStorage;
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public SnackLogic(ILogger<SnackLogic> logger, ISnackStorage snackStorage)
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{
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_logger = logger;
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_snackStorage = snackStorage;
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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. SnackName:{SnackName}.Id:{ Id}", model?.SnackName, model?.Id);
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var list = model == null ? _snackStorage.GetFullList() : _snackStorage.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 SnackViewModel? ReadElement(SnackSearchModel 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. SnackName:{SnackName}.Id:{ Id}", model.SnackName, model.Id);
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var element = _snackStorage.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(SnackBindingModel model)
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{
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CheckModel(model);
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if (_snackStorage.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(SnackBindingModel model)
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{
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CheckModel(model);
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if (_snackStorage.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(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 (_snackStorage.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(SnackBindingModel 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.SnackName))
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{
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throw new ArgumentNullException("Нет названия закуски",
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nameof(model.SnackName));
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}
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if (model.Price <= 0)
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{
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throw new ArgumentNullException("Цена закуски должна быть больше 0", nameof(model.Price));
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}
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_logger.LogInformation("Snack. SnackName:{SnackName}.Price:{ Price}. Id: { Id}", model.SnackName, model.Price, model.Id);
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var element = _snackStorage.GetElement(new SnackSearchModel
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{
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SnackName = model.SnackName
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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("Закуска 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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