using CarRepairShopContracts.BindingModels;
using CarRepairShopContracts.SearchModels;
using CarRepairShopContracts.StoragesContracts;
using CarRepairShopContracts.ViewModels;
using CarRepairShopDatabaseImplement.Models;

namespace CarRepairShopDatabaseImplement.Implements
{
    public class OrderStorage : IOrderStorage
    {
        public List<OrderViewModel> GetFullList()
        {
            using var context = new RepairsShopDatabase();
            return context.Orders
            .Select(x => x.GetViewModel)
           .ToList();
        }
        public List<OrderViewModel> GetFilteredList(OrderSearchModel model)
        {
            if (!model.Id.HasValue)
            {
                return new();
            }
            using var context = new RepairsShopDatabase();
            return context.Orders
            .Where(x => x.Id == model.Id)
           .Select(x => x.GetViewModel)
           .ToList();
        }
        public OrderViewModel? GetElement(OrderSearchModel model)
        {
            if (!model.Id.HasValue)
            {
                return null;
            }
            using var context = new RepairsShopDatabase();
            return  context.Orders.FirstOrDefault(x => x.Id == model.Id)?.GetViewModel;
        }
        public OrderViewModel? Insert(OrderBindingModel model)
        {
            using var context = new RepairsShopDatabase();
            var newOrder = Order.Create(context, model);
            if (newOrder == null)
            {
                return null;
            }
            context.Orders.Add(newOrder);
            context.SaveChanges();
            return newOrder.GetViewModel;
        }
        public OrderViewModel? Update(OrderBindingModel model)
        {
            using var context = new RepairsShopDatabase();
            var order = context.Orders.FirstOrDefault(x => x.Id ==
           model.Id);
            if (order == null)
            {
                return null;
            }
            order.Update(model);
            context.SaveChanges();
            return order.GetViewModel;
        }
        public OrderViewModel? Delete(OrderBindingModel model)
        {
            using var context = new RepairsShopDatabase();
            var element = context.Orders.FirstOrDefault(rec => rec.Id ==
           model.Id);
            if (element != null)
            {
                context.Orders.Remove(element);
                context.SaveChanges();
                return element.GetViewModel;
            }
            return null;
        }
    }
}