namespace My.Organization.XYZ.Services.Checkout
{
    using System;
    using System.Collections.Generic;
    using System.Data;
    using System.Linq;
    using System.Text;
    using CommerceBuilder.Common;
    using CommerceBuilder.Orders;
    using CommerceBuilder.Services.Checkout;
    using CommerceBuilder.DomainModel;

    /// <summary>
    /// Provides services to convert a shopping session to an order.
    /// </summary>
    [RegisterFor(typeof(ICheckoutService))]
    public class CustomCheckoutService : CheckoutService
    {        

        /// <summary>
        /// Executes a checkout request.
        /// </summary>
        /// <param name="checkoutRequest">The checkout request</param>
        /// <param name="validateBasket">A value indicating whether the basket should be validated before executing checkout.</param>
        /// <param name="triggerEvents">If 'true' store events are triggered during the checkout. If 'false' store events are suppressed.</param> 
        /// <returns>The checkout response</returns>
        public override CheckoutResponse ExecuteCheckout(CheckoutRequest checkoutRequest, bool validateBasket = true, bool triggerEvents = true)
        {
            Basket basket = checkoutRequest.Basket;
            IBasketService basketService = AbleContext.Resolve<IBasketService>();

            /*******************************************/
            /*perform your pre-checkout operations here*/
            /*******************************************/


            // prepare basket items data, as it might not be avilable after a successful checkout request
            var response = base.ExecuteCheckout(checkoutRequest, validateBasket, triggerEvents);

            if(response.Success)
            {
                // perform your post checkout operations here
            }

            // return a successful checkout response
            return response;
        }        
    }
}