using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;

using Domain.Entities;

namespace FilmsRUsOnline.Plumbing
{
    public class OrderModelBinder : IModelBinder
    {
        private const string orderSessionKey = "_order";
    
        public object BindModel(ControllerContext controllerContext, ModelBindingContext bindingContext)
        {
            // Return the order from Session (or create it if it doesn't exist).
            Order order = (Order)controllerContext.HttpContext.Session[orderSessionKey];
            if (order == null)
            {
                order = new Order();
                controllerContext.HttpContext.Session[orderSessionKey] = order;
            }
            return order;
        }
    }
}