using Contracts.BindingModels;
using Contracts.BusinessLogicContracts;
using Contracts.StorageContracts;
using Contracts.ViewModels;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace BusinessLogic
{
	public class ManufacturerLogic : IManufacturerLogic
	{
		private readonly IManufacturerStorage _ManufacturerStorage;
		public ManufacturerLogic(IManufacturerStorage ManufacturerStorage)
		{
			_ManufacturerStorage = ManufacturerStorage;
		}

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

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

		public List<ManufacturerViewModel> Read(ManufacturerBindingModel model)
		{
			if (model == null)
			{
				return _ManufacturerStorage.GetFullList();
			}
			if (model.Id.HasValue)
			{
				return new List<ManufacturerViewModel> { _ManufacturerStorage.GetElement(model) };
			}
			return _ManufacturerStorage.GetFilteredList(model);
		}
	}
}