using ClientsContracts.BindingModels;
using ClientsContracts.BusinessLogicContracts;
using ClientsContracts.StorageContracts;
using ClientsContracts.ViewModels;

namespace ClientBusinessLogic.BusinessLogics
{
	public class StatusLogic : IStatusLogic
	{
		private readonly IStatusStorage _statusStorage;
		public StatusLogic(IStatusStorage statusStorage)
		{
			_statusStorage = statusStorage;
		}

		public void CreateOrUpdate(StatusBindingModel model)
		{
			var element = _statusStorage.GetElement(
			   new StatusBindingModel
			   {
				   Name = model.Name
			   });
			if (element != null && element.Id != model.Id)
			{
				throw new Exception("Такой статус уже существует");
			}
			if (model.Id.HasValue)
			{
				_statusStorage.Update(model);
			}
			else
			{
				_statusStorage.Insert(model);
			}
		}

		public void Delete(StatusBindingModel model)
		{
			var element = _statusStorage.GetElement(new StatusBindingModel { Id = model.Id });
			if (element == null)
			{
				throw new Exception("Статус не найден");
			}
			_statusStorage.Delete(model);
		}

		public List<StatusViewModel> Read(StatusBindingModel model)
		{
			if (model == null)
			{
				return _statusStorage.GetFullList();
			}
			if (model.Id.HasValue)
			{
				return new List<StatusViewModel> { _statusStorage.GetElement(model) };
			}
			return _statusStorage.GetFilteredList(model);
		}
	}
}