38 lines
1.8 KiB
C#
38 lines
1.8 KiB
C#
namespace Netina.Core.EntityServices.OrderBagHandlers;
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public class SubmitDiscountActionCommandHandler(IRepositoryWrapper repositoryWrapper, IMediator mediator)
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: IRequestHandler<SubmitDiscountActionCommand, OrderSDto>
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{
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public async Task<OrderSDto> Handle(SubmitDiscountActionCommand request, CancellationToken cancellationToken)
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{
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var order = await repositoryWrapper.SetRepository<Order>()
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.TableNoTracking
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.FirstOrDefaultAsync(o => o.Id == request.OrderId, cancellationToken);
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if (order == null)
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throw new AppException("Order not found", ApiResultStatusCode.NotFound);
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if (request.DiscountCode != null)
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{
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var discount = await repositoryWrapper.SetRepository<Discount>()
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.TableNoTracking
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.FirstOrDefaultAsync(d => d.Code == request.DiscountCode, cancellationToken);
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if (discount == null || discount.IsExpired())
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throw new AppException("تخفیف منقضی شده است یا وجود ندارد", ApiResultStatusCode.NotFound);
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var isFirstUserOfDiscount = await mediator.Send(new CheckUserDiscountFirstUseCommand(request.DiscountCode), cancellationToken);
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if (!isFirstUserOfDiscount)
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throw new BaseApiException(ApiResultStatusCode.BadRequest, "شما یک بار از این کد تخفیف استفاده نموده اید و قابلیت استفاده مجدد ندارید");
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order.SetDiscount(request.DiscountCode);
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}
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else
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order.RemoveDiscount();
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repositoryWrapper.SetRepository<Order>().Update(order);
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await repositoryWrapper.SaveChangesAsync(cancellationToken);
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var calculateOrder = await mediator.Send(new CalculateOrderCommand(order.Id), cancellationToken);
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return calculateOrder.AdaptToSDto();
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}
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} |