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using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Logging;
using Swashbuckle.AspNetCore.Annotations;
using VND.CoolStore.Services.ApiGateway.Infrastructure.Service;
using VND.CoolStore.Services.ApiGateway.Model;
using VND.CoolStore.Shared.Catalog.GetProductById;

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public sealed class Cart : AggregateRootBase
{
  private Cart() : base(GenerateId())
  {
  }

  private Cart(Guid id) : base(id)
  {
  }

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public sealed class CartItem : EntityBase
{
  private CartItem() : base(GenerateId())
  {
  }

  private CartItem(Guid id, int quantity, double price = 0.0D, double promoSavings = 0.0D) : base(id)
  {
    Quantity = quantity;
    Price = price;

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public sealed class Product : IdentityBase
{
  private Product() : base()
  {
  }

  private Product(Guid productId)
    : this(productId, string.Empty, 0.0D, string.Empty)
  {
  }

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public class RequestHandler : RequestHandlerBase<GetCartRequest, GetCartResponse>
{
  private readonly ICatalogGateway _catalogGateway;
  private readonly IShippingGateway _shippingGateway;
  private readonly IPromoGateway _promoGateway;

  public RequestHandler(ICatalogGateway cgw, IQueryRepositoryFactory qrf,
    IShippingGateway shippingGateway, IPromoGateway promoGateway)
    : base(qrf)
  {

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public class RequestHandler : TxRequestHandlerBase<InsertItemToNewCartRequest, InsertItemToNewCartResponse>
{
  private readonly ICatalogGateway _catalogGateway;
  private readonly IShippingGateway _shippingGateway;
  private readonly IPromoGateway _promoGateway;

  public RequestHandler(
    IUnitOfWorkAsync uow, IQueryRepositoryFactory qrf,
    ICatalogGateway catalogGateway, IShippingGateway shippingGateway,
    IPromoGateway promoGateway) : base(uow, qrf)

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public class RequestHandler : TxRequestHandlerBase<UpdateItemInCartRequest, UpdateItemInCartResponse>
{
  private readonly ICatalogGateway _catalogGateway;
  private readonly IShippingGateway _shippingGateway;
  private readonly IPromoGateway _promoGateway;

  public RequestHandler(IUnitOfWorkAsync uow, IQueryRepositoryFactory qrf,
    ICatalogGateway catalogGateway, IShippingGateway shippingGateway,
    IPromoGateway promoGateway) : base(uow, qrf)
  {

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public class RequestHandler : TxRequestHandlerBase<DeleteItemRequest, DeleteItemResponse>
{
  private readonly ICatalogGateway _catalogGateway;
  private readonly IShippingGateway _shippingGateway;
  private readonly IPromoGateway _promoGateway;

  public RequestHandler(IUnitOfWorkAsync uow, IQueryRepositoryFactory qf,
    ICatalogGateway cgw, IShippingGateway shippingGateway, IPromoGateway promoGateway)
    : base(uow, qf)
  {

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public class RequestHandler : TxRequestHandlerBase<CheckoutRequest, CheckoutResponse>
{
  public RequestHandler(IUnitOfWorkAsync uow, IQueryRepositoryFactory qrf)
    : base(uow, qrf)
  {
  }

  public override async Task<CheckoutResponse> Handle(CheckoutRequest request, CancellationToken cancellationToken)
  {
    var cartCommander = UnitOfWork.Repository<Domain.Cart>();

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[ApiController]
[ApiVersion("1.0")]
[Route("api/carts")]
public class CartController : Controller
{
  [HttpGet]
  [Route("{id}")]
  [Auth(Policy = "access_cart_api")]
  public async Task<IActionResult> Get([FromServices] IMediator eventor, Guid id, CancellationToken cancellationToken)
  {