130 lines
4.3 KiB
C#
130 lines
4.3 KiB
C#
using BookShopContracts.BindingModels;
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using BookShopContracts.BusinessLogicsContracts;
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using BookShopContracts.SearchModels;
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using BookShopContracts.StoragesContracts;
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using BookShopContracts.ViewModels;
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using Microsoft.Extensions.Logging;
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namespace BookShopBusinessLogic.BusinessLogics
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{
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public class BookLogic : IBookLogic
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{
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private readonly ILogger _logger;
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private readonly IBookStorage _bookStorage;
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public BookLogic(ILogger<BookLogic> logger, IBookStorage bookStorage)
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{
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_logger = logger;
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_bookStorage = bookStorage;
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}
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public bool Create(BookBindingModel model)
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{
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CheckModel(model);
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if (_bookStorage.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(BookBindingModel 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 (_bookStorage.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 BookViewModel? ReadElement(BookSearchModel 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. BookName: {BookName}. Id: {Id}.", model.BookName, model.Id);
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var element = _bookStorage.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<BookViewModel>? ReadList(BookSearchModel? model)
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{
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_logger.LogInformation("ReadList. BookName: {BookName}. Id: {Id}.", model?.BookName, model?.Id);
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var list = model == null ? _bookStorage.GetFullList() : _bookStorage.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 string TestInsertList(int num)
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{
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throw new NotImplementedException();
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}
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public string TestReadList(int num)
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{
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return _bookStorage.TestReadList(num);
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}
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public bool Update(BookBindingModel model)
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{
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CheckModel(model);
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if (_bookStorage.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(BookBindingModel 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.BookName))
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{
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throw new ArgumentNullException("Нет названия книги", nameof(model.BookName));
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}
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if (model.Count < 0)
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{
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throw new ArgumentNullException("Количество не может быть меньше 0", nameof(model.BookName));
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}
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if (model.Cost <= 0)
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{
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throw new ArgumentNullException("Стоимость не может быть меньше 0", nameof(model.BookName));
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}
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_logger.LogInformation("Book. BookName: {BookName}. Cost: {Cost}. Id: {Id}.", model.BookName, model.Cost, model.Id);
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var element = _bookStorage.GetElement(new BookSearchModel
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{
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BookName = model.BookName
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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("Книга 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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