PIbd-22_Karamushko_M_K_Univ.../University/UniversityBuisnessLogic/DisciplineLogic.cs

118 lines
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C#
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2023-04-05 20:24:16 +04:00
using UniversityContracts.BindingModels;
using UniversityContracts.BuisnessLogicContracts;
using UniversityContracts.SearchModels;
using UniversityContracts.StoragesContracts;
using UniversityContracts.ViewModels;
using Microsoft.Extensions.Logging;
namespace UniversityBuisnessLogic
{
public class DisciplineLogic : IDisciplineLogic
{
private readonly ILogger _logger;
private readonly IDisciplineStorage _disciplineStorage;
public DisciplineLogic(ILogger<DisciplineLogic> logger, IDisciplineStorage disciplineStorage)
{
_logger = logger;
_disciplineStorage = disciplineStorage;
}
public bool Create(DisciplineBindingModel model)
{
CheckModel(model);
if (_disciplineStorage.Insert(model) == null)
{
_logger.LogWarning("Insert operation failed");
return false;
}
return true;
}
public bool Delete(DisciplineBindingModel model)
{
CheckModel(model, false);
_logger.LogInformation("Delete. Id:{Id}", model.Id);
if (_disciplineStorage.Delete(model) == null)
{
_logger.LogWarning("Delete operation failed");
return false;
}
return true;
}
public DisciplineViewModel? ReadElement(DisciplineSearchModel model)
{
if (model == null)
{
throw new ArgumentNullException(nameof(model));
}
_logger.LogInformation("ReadElement. DisciplineName:{Name}. Id:{Id}", model.Name, model.Id);
var element = _disciplineStorage.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<DisciplineViewModel>? ReadList(DisciplineSearchModel? model)
{
_logger.LogInformation("ReadList. DisciplineName: {Name}. Id:{Id}", model?.Name, model?.Id);
var list = model == null ? _disciplineStorage.GetFullList() : _disciplineStorage.GetFilteredList(model);
if (list == null)
{
_logger.LogWarning("ReadList return null list");
return null;
}
_logger.LogInformation("ReadList. Count:{Count}", list.Count);
return list;
}
public bool Update(DisciplineBindingModel model)
{
CheckModel(model);
if (_disciplineStorage.Update(model) == null)
{
_logger.LogWarning("Update operation failed");
return false;
}
return true;
}
private void CheckModel(DisciplineBindingModel model, bool withParams = true)
{
if (model == null)
{
throw new ArgumentNullException(nameof(model));
}
if (!withParams)
{
return;
}
if (string.IsNullOrEmpty(model.Name))
{
throw new ArgumentNullException("Нет названия дисциплины", nameof(model.Name));
}
if (string.IsNullOrEmpty(model.Department))
{
throw new ArgumentNullException("Нет названия кафедры", nameof(model.Name));
}
_logger.LogInformation("Discipline. Name:{Name}. Department:{Department}. Id: {Id}", model.Name, model.Department, model.Id);
var element = _disciplineStorage.GetElement(new DisciplineSearchModel
{
Name = model.Name
});
if (element != null && element.Id != model.Id)
{
throw new InvalidOperationException("Дисциплина с таким названием уже есть");
}
}
}
}