using System.Threading.Tasks;
using System; // Für Guid
using Webshop.Application.DTOs.Customers; // <--- WICHTIG für CartDto
using Webshop.Application.DTOs.Shipping;
using Webshop.Application;

namespace Webshop.Application.Services.Customers.Interfaces
{
    public interface ICartService
    {
        Task<ServiceResult<CartDto>> GetCartAsync(string userId);
        Task<ServiceResult> AddToCartAsync(string userId, CartItemDto item);
        Task<ServiceResult> RemoveFromCartAsync(string userId, Guid productId);
        Task ClearCartAsync(string userId);
    }
}