120 lines
4.7 KiB
C#
120 lines
4.7 KiB
C#
using Microsoft.Extensions.Logging;
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using TravelAgencyContracts.BindingModels;
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using TravelAgencyContracts.BusinessLogicsContracts;
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using TravelAgencyContracts.SearchModels;
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using TravelAgencyContracts.StoragesContracts;
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using TravelAgencyContracts.ViewModels;
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namespace TravelAgencyBusinessLogic.BusinessLogics
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{
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public class ExcursionGroupLogic : IExcursionGroupLogic
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{
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private readonly ILogger _logger;
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private readonly IExcursionGroupStorage _excursionGroupStorage;
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public ExcursionGroupLogic(ILogger<ExcursionGroupLogic> logger, IExcursionGroupStorage excursionGroupStorage)
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{
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_logger = logger;
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_excursionGroupStorage = excursionGroupStorage;
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}
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public List<ExcursionGroupViewModel>? ReadList(ExcursionGroupSearchModel? model)
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{
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_logger.LogInformation("ReadList. Id: {Id}, ExcursionGroupName: {ExcursionGroupName}, UserId: {UserId}, GuideId: {GuideId}.", model?.Id, model?.ExcursionGroupName, model?.UserId, model?.GuideId);
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var list = (model == null) ? _excursionGroupStorage.GetFullList() : _excursionGroupStorage.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 ExcursionGroupViewModel? ReadElement(ExcursionGroupSearchModel 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. ExcursionGroup id: {Id}, ExcursionGroup name: {ExcursionGroupName}", model?.Id, model?.ExcursionGroupName);
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var element = _excursionGroupStorage.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 bool Create(ExcursionGroupBindingModel model)
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{
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CheckModel(model);
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if (_excursionGroupStorage.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 Update(ExcursionGroupBindingModel model)
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{
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CheckModel(model);
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if (_excursionGroupStorage.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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public bool Delete(ExcursionGroupBindingModel 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 (_excursionGroupStorage.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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private void CheckModel(ExcursionGroupBindingModel 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.ExcursionGroupName))
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{
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throw new ArgumentNullException("Нет названия группы", nameof(model.ExcursionGroupName));
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}
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if (model.ParticipantsAmount <= 0)
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{
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throw new ArgumentNullException("Количество участников быть больше 0", nameof(model.ParticipantsAmount));
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}
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if (model.UserId <= 0)
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{
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throw new ArgumentNullException("Некорректный идентификатор пользователя", nameof(model.UserId));
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}
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_logger.LogInformation("ExcursionGroup. Id: {id}, ExcursionGroupName: {ExcursionGroupName}, ParticipantsAmount: {ParticipantsAmount}, UserId: {UserId}", model.Id, model.ExcursionGroupName, model.ParticipantsAmount, model.UserId);
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var element = _excursionGroupStorage.GetElement(new ExcursionGroupSearchModel
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{
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ExcursionGroupName = model.ExcursionGroupName
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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("Группа 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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