102 lines
3.3 KiB
C#
102 lines
3.3 KiB
C#
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using UniversityContracts.BindingModels;
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using UniversityContracts.BuisnessLogicContracts;
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using UniversityContracts.SearchModels;
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using UniversityContracts.StoragesContracts;
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using UniversityContracts.ViewModels;
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using Microsoft.Extensions.Logging;
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namespace UniversityBuisnessLogic
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{
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public class StudentLogic : IStudentLogic
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{
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private readonly ILogger _logger;
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private readonly IStudentStorage _studentStorage;
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public StudentLogic(ILogger<StudentLogic> logger, IStudentStorage studentStorage)
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{
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_logger = logger;
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_studentStorage = studentStorage;
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}
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public bool Create(StudentBindingModel model)
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{
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CheckModel(model);
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if (_studentStorage.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(StudentBindingModel 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 (_studentStorage.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 StudentViewModel? ReadElement(StudentSearchModel 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. StudentName: {Name}. Id:{Id}", model.Name, model.Id);
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var element = _studentStorage.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<StudentViewModel>? ReadList(StudentSearchModel? model)
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{
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_logger.LogInformation("ReadList. StudentName: {Name}. Id:{Id}", model?.Name, model?.Id);
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var list = model == null ? _studentStorage.GetFullList() : _studentStorage.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(StudentBindingModel model)
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{
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CheckModel(model);
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if (_studentStorage.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(StudentBindingModel 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 имени студента", nameof(model.Name));
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}
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_logger.LogInformation("Student. Name:{Name}. Id: { Id}", model.Name, model.Id);
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}
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}
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}
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