using SushiBarContracts.BindingModel;
using SushiBarContracts.SearchModel;
using SushiBarContracts.StoragesContracts;
using SushiBarContracts.ViewModels;
using SushiBarDatabaseImplement.Models;

namespace SushiBarDatabaseImplement.Implements
{
    public class OrderStorage : IOrderStorage
    {
        public List<OrderViewModel> GetFullList()
        {
            using var context = new SushiBarDatabase();
            return context.Orders.Select(x => AccessViewModel(x.GetViewModel)).ToList();
        }

        public List<OrderViewModel> GetFilteredList(OrderSearchModel model)
        {
            if (!model.Id.HasValue && !model.DateTo.HasValue && !model.DateFrom.HasValue)
            {
                return new();
            }
            using var context = new SushiBarDatabase();
            if (model.Id.HasValue)
                return context.Orders.Where(x => x.Id == model.Id).Select(x => AccessViewModel(x.GetViewModel)).ToList();
            else
                return context.Orders.Where(x => x.DateCreate >= model.DateFrom).Where(x => x.DateCreate <= model.DateTo).Select(x => AccessViewModel(x.GetViewModel)).ToList();
        }
        public OrderViewModel? GetElement(OrderSearchModel model)
        {
            if (!model.Id.HasValue)
            {
                return null;
            }
            using var context = new SushiBarDatabase();
            return AccessViewModel(context.Orders.FirstOrDefault(x => model.Id.HasValue && x.Id == model.Id).GetViewModel);
        }
        public OrderViewModel? Insert(OrderBindingModel model)
        {
            using var context = new SushiBarDatabase();
            var newOrder = Order.Create(model);
            if (newOrder == null)
            {
                return null;
            }
            context.Orders.Add(newOrder);
            context.SaveChanges();
            return AccessViewModel(newOrder.GetViewModel);
        }
        public OrderViewModel? Update(OrderBindingModel model)
        {
            using var context = new SushiBarDatabase();
            var order = context.Orders.FirstOrDefault(x => x.Id == model.Id);
            if (order == null)
            {
                return null;
            }
            order.Update(model);
            context.SaveChanges();
            return AccessViewModel(order.GetViewModel);
        }
        public OrderViewModel? Delete(OrderBindingModel model)
        {
            using var context = new SushiBarDatabase();
            var order = context.Orders.FirstOrDefault(x => x.Id == model.Id);
            if (order == null) return null;
            context.Remove(order);
            context.SaveChanges();
            return AccessViewModel(order.GetViewModel);
        }
        public static OrderViewModel? AccessViewModel(OrderViewModel viewModel)
        {
            using var context = new SushiBarDatabase();

            var sushi = context.Sushis.FirstOrDefault(x => x.Id == viewModel.SushiId);
            if (viewModel != null)
            {
                viewModel.SushiName = sushi!.SushiName;
                return viewModel;
            }

            return null;
        }
    }
}