using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using VetClinicBusinessLogic.BindingModels;
using VetClinicBusinessLogic.Interfaces;
using VetClinicBusinessLogic.ViewModels;

namespace VetClinicBusinessLogic.BusinessLogic
{
    public class ServiceLogic
    {
        private readonly IServiceStorage _ServicesStorage;

        public ServiceLogic(IServiceStorage ServicesStorage)
        {
            _ServicesStorage = ServicesStorage;
        }

        public List<ServiceViewModel> Read(ServiceBindingModel model)
        {
            if (model == null)
            {
                return _ServicesStorage.GetFullList();
            }
            if (model.Id.HasValue)
            {
                return new List<ServiceViewModel> { _ServicesStorage.GetElement(model) };
            }
            return _ServicesStorage.GetFilteredList(model);
        }

        public void CreateOrUpdate(ServiceBindingModel model)
        {
            if (model.Id.HasValue)
            {
                _ServicesStorage.Update(model);
            }
            else
            {
                _ServicesStorage.Insert(model);
            }

        }

        public void Delete(ServiceBindingModel model)
        {
            var element = _ServicesStorage.GetElement(new ServiceBindingModel
            {
                Id = model.Id
            });
            if (element == null)
            {
                throw new Exception("Услуга не найдена");
            }
            _ServicesStorage.Delete(model);
        }
    }
}