How to access cart details or session id in commerce promotion condition

Question

I have created a new condition for a promotion in our Sitecore Commerce site following this example. Is it possible to get cart details or the session id inside the evaluate method?

The evaluate method is triggered when user clicks on the 'apply promo' button in UI.

namespace Sitecore.Feature.Commerce.Promotions.Engine.Conditions
{
    using Microsoft.ApplicationBlocks.Data;
    using Sitecore.Commerce.Plugin.Carts;
    using Sitecore.Framework.Rules;
    using System;
    using System.Data;
    using System.IO;
    using System.Web;
    using System.Web.Configuration;


    [EntityIdentifier("Future Event Dates")]
    public class FutureEventDatesCondition : ICartsCondition, ICondition, IMappableRuleEntity
    {
        public IRuleValue<string> FutureEventStartDate { get; set; }
        public IRuleValue<string> FutureEventEndDate { get; set; }

        public bool Evaluate(IRuleExecutionContext context)
        {
           //how to get the cartid or sessionid in here           
        }
    }
}

We are using Sitecore Commerce 8.2.1.

Answer 1

@RobEarlam from slack helped me with the solution.

The cart details can be accessed like this inside the Evaluate method.

public bool Evaluate(IRuleExecutionContext context)
{
  CommerceContext commerceContext = context.Fact<CommerceContext>((string)null);
  List<Cart> lstCarts = commerceContext.GetObjects<Cart>();
  Cart cart = lstCarts[0];
}