using ForumContracts.BindingModels; using ForumContracts.BusinessLogicContracts; using ForumContracts.SearchModels; using ForumContracts.StorageContracts; using ForumContracts.ViewModels; using Microsoft.Extensions.Logging; using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; namespace ForumBusinessLogic.BusinessLogic { public class QuestionLogic : IQuestionLogic { private readonly ILogger _logger; private readonly IQuestionStorage _questionStorage; public QuestionLogic(ILogger logger, IQuestionStorage questionStorage) { _logger = logger; _questionStorage = questionStorage; } public bool Create(QuestionBindingModel model) { CheckModel(model); if (_questionStorage.Insert(model) == null) { _logger.LogWarning("Insert operation failed"); return false; } return true; } public bool Delete(QuestionBindingModel model) { CheckModel(model, false); _logger.LogInformation("Delete. Id:{Id}", model.Id); if (_questionStorage.Delete(model) == null) { _logger.LogWarning("Delete operation failed"); return false; } return true; } public QuestionViewModel? ReadElement(QuestionSearchModel model) { if (model == null) { throw new ArgumentNullException(nameof(model)); } _logger.LogInformation("ReadElement. QuestionDes:{QuestionDes}.Id:{ Id}", model.QuestionDes, model.Id); var element = _questionStorage.GetElement(model); if (element == null) { _logger.LogWarning("ReadElement element not found"); return null; } _logger.LogInformation("ReadElement find. Id:{Id}", element.Id); return element; } public List? ReadList(QuestionSearchModel? model) { _logger.LogInformation("ReadList. QuestionDes:{QuestionDes}.Id:{ Id}", model?.QuestionDes, model?.Id); var list = model == null ? _questionStorage.GetFullList() : _questionStorage.GetFilteredList(model); if (list == null) { _logger.LogWarning("ReadList return null list"); return null; } _logger.LogInformation("ReadList. Count:{Count}", list.Count); return list; } public List? HardRequest(QuestionSearchModel? model) { return _questionStorage.HardRequest(new QuestionSearchModel { DateFrom = model.DateFrom, DateTo = model.DateTo }) .Select(x => new QuestionViewModel { CreateDate = x.CreateDate, QuestionDes = x.QuestionDes, UserName = x.UserName, CategoryName = x.CategoryName }) .ToList(); } public bool Update(QuestionBindingModel model) { CheckModel(model); if (_questionStorage.Update(model) == null) { _logger.LogWarning("Update operation failed"); return false; } return true; } private void CheckModel(QuestionBindingModel model, bool withParams = true) { if (model == null) { throw new ArgumentNullException(nameof(model)); } if (!withParams) { return; } if (string.IsNullOrEmpty(model.QuestionDes)) { throw new ArgumentNullException("Нет вопроса", nameof(model.QuestionDes)); } _logger.LogInformation("Question. QuestionDes:{QuestionDes}.CreateDate:{ CreateDate}. Id: { Id}", model.QuestionDes, model.CreateDate, model.Id); } } }