PIbd22_Kuznetsov_A.V._SewingDresses/SewingDresses/SewingDressesDatabaseImplement/Implements/OrderStorage.cs

using SewingDressesContracts.BindingModels;
using SewingDressesContracts.SearchModels;
using SewingDressesContracts.StoragesContracts;
using SewingDressesContracts.ViewModels;
using SewingDressesDatabaseImplement.Models;

namespace SewingDressesDatabaseImplement.Implements
{
    public class OrderStorage : IOrderStorage
    {
        public List<OrderViewModel?> GetFullList()
        {
            using var context = new SewingDressesDatabase();
            return context.Orders.Select(x => AcessDressesStorage(x.GetViewModel, context)).ToList();
        }
        public List<OrderViewModel?> GetFilteredList(OrderSearchModel model)
        {
            if (!model.Id.HasValue && !model.DateFrom.HasValue && !model.DateTo.HasValue)
            {
                return new();
            }
            using var context = new SewingDressesDatabase();
            if (model.Id.HasValue)
                return context.Orders.Where(x => x.Id == model.Id).Select(x => AcessDressesStorage(x.GetViewModel, context)).ToList();
            else
                return context.Orders.Where(x => x.DateCreate >= model.DateFrom).Where(x => x.DateCreate <= model.DateTo).Select(x => AcessDressesStorage(x.GetViewModel, context)).ToList();
        }
        public OrderViewModel? GetElement(OrderSearchModel model)
        {
            if (!model.Id.HasValue)
            {
                return null;
            }
            using var context = new SewingDressesDatabase();
            return AcessDressesStorage(context.Orders.FirstOrDefault(x => x.Id == model.Id)?.GetViewModel, context);
        }
        public OrderViewModel? Insert(OrderBindingModel model)
        {
            var order = Order.Create(model);
            if (order == null)
            {
                return null;
            }
            using var context = new SewingDressesDatabase();
            context.Orders.Add(order);
            context.SaveChanges();
            return AcessDressesStorage(order.GetViewModel, context);

        }
        public OrderViewModel? Update(OrderBindingModel model)
        {

            using var context = new SewingDressesDatabase();
            var order = context.Orders.FirstOrDefault(x => x.Id == model.Id);
            if (order == null)
            {
                return null;
            }
            order.Update(model);
            context.SaveChanges();
            return AcessDressesStorage(order.GetViewModel, context);

        }
        public OrderViewModel? Delete(OrderBindingModel model)
        {
            using var context = new SewingDressesDatabase();
            var element = context.Orders.FirstOrDefault(x => x.Id == model.Id);
            if (element == null)
            {
                return null;
            }
            context.Orders.Remove(element);
            context.SaveChanges();
            return AcessDressesStorage(element.GetViewModel, context);
        }
        public static OrderViewModel? AcessDressesStorage(OrderViewModel? model, SewingDressesDatabase context)
        {
            if (model == null)
            {
                return null;
            }
            var dress = context.Dresses.FirstOrDefault(x => x.Id == model.DressId);
            if (dress == null)
            {
                return null;
            }
            model.DressName = dress.DressName;
            return model;
        }

    }
}