122 lines
4.0 KiB
C#
122 lines
4.0 KiB
C#
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using ForumContracts.BindingModels;
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using ForumContracts.BusinessLogicContracts;
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using ForumContracts.SearchModels;
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using ForumContracts.StorageContracts;
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using ForumContracts.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 ForumBusinessLogic.BusinessLogic
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{
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public class CategoryLogic : ICategoryLogic
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{
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private readonly ILogger _logger;
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private readonly ICategoryStorage _categoryStorage;
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public CategoryLogic(ILogger<CategoryLogic> logger, ICategoryStorage categoryStorage)
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{
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_logger = logger;
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_categoryStorage = categoryStorage;
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}
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public bool Create(CategoryBindingModel model)
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{
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CheckModel(model);
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if (_categoryStorage.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(CategoryBindingModel 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 (_categoryStorage.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 CategoryViewModel? ReadElement(CategorySearchModel 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:{FIO}.Id:{ Id}",
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model.Name, model.Id);
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var element = _categoryStorage.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<CategoryViewModel>? ReadList(CategorySearchModel? 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) ? _categoryStorage.GetFullList() :
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_categoryStorage.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(CategoryBindingModel model)
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{
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CheckModel(model);
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if (_categoryStorage.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(CategoryBindingModel 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 категории", nameof(model.Name));
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}
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if (string.IsNullOrEmpty(model.Description))
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{
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throw new ArgumentNullException("Нет описания категории", nameof(model.Description));
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}
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_logger.LogInformation("Caregory. Id: {Id}, Name: {Name}", model.Id, model.Name);
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var element = _categoryStorage.GetElement(new CategorySearchModel
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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("Категория 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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