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.ClientId.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(); return context.Orders.Where(x => x.Id == model.Id).Select(x => AcessDressesStorage(x.GetViewModel, context)).ToList();
			else if (model.ClientId.HasValue)
				return context.Orders.Where(x => x.ClientId == model.ClientId).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);
			var client = context.Clients.FirstOrDefault(x => x.Id == model.ClientId);
			if (client == null || dress == null)
				return null;
			model.DressName = dress.DressName;		
            model.ClientFIO = client.ClientFIO;		
            model.ClientId = client.Id; 		
            return model;
		}

	}
}