using Microsoft.EntityFrameworkCore;
using PizzeriaContracts.BindingModels;
using PizzeriaContracts.SearchModels;
using PizzeriaContracts.StorageContracts;
using PizzeriaContracts.ViewModels;
using PizzeriaDatabaseImplement.Models;
namespace PizzeriaDatabaseImplement.Implements
{
    public class OrderStorage : IOrderStorage
    {

        public OrderViewModel? GetElement(OrderSearchModel model)
        {
            if (!model.Id.HasValue)
            {
                return null;
            }
            using var context = new PizzeriaDatabase();
            return context.Orders.Include(x => x.Pizza).FirstOrDefault(x => (model.Id.HasValue && x.Id == model.Id))?.GetViewModel;
        }

        public List<OrderViewModel> GetFilteredList(OrderSearchModel model)
        {
            if (!model.Id.HasValue)
            {
                return new();
            }
            using var context = new PizzeriaDatabase();
            return context.Orders.Include(x => x.Pizza).Where(x => x.Id == model.Id).Select(x => x.GetViewModel).ToList();
        }

        public List<OrderViewModel> GetFullList()
        {
            using var context = new PizzeriaDatabase();
            return context.Orders.Include(x => x.Pizza).Select(x => x.GetViewModel).ToList();
        }

        public OrderViewModel? Insert(OrderBindingModel model)
        {
            var newOrder = Order.Create(model);
            if (newOrder == null)
            {
                return null;
            }
            using var context = new PizzeriaDatabase();
            context.Orders.Add(newOrder);
            context.SaveChanges();
            return context.Orders.Include(x => x.Pizza).FirstOrDefault(x => x.Id == newOrder.Id)?.GetViewModel;
        }

        public OrderViewModel? Update(OrderBindingModel model)
        {
            using var context = new PizzeriaDatabase();
            var component = context.Orders.FirstOrDefault(x => x.Id == model.Id);
            if (component == null)
            {
                return null;
            }
            component.Update(model);
            context.SaveChanges();
            return context.Orders.Include(x => x.Pizza).FirstOrDefault(x => x.Id == model.Id)?.GetViewModel;
        }
        public OrderViewModel? Delete(OrderBindingModel model)
        {
            using var context = new PizzeriaDatabase();
            var element = context.Orders.FirstOrDefault(rec => rec.Id == model.Id);
            if (element != null)
            {
                context.Orders.Remove(element);
                context.SaveChanges();
                return element.GetViewModel;
            }
            return null;
        }
    }
}