63 lines
2.9 KiB
C#
63 lines
2.9 KiB
C#
// Copyright (c) HelloShop Corporation. All rights reserved.
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// See the license file in the project root for more information.
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using AutoMapper;
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using HelloShop.OrderingService.DistributedEvents.Events;
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using HelloShop.OrderingService.Entities.Buyers;
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using HelloShop.OrderingService.Entities.Orders;
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using HelloShop.OrderingService.Infrastructure;
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using HelloShop.OrderingService.LocalEvents;
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using HelloShop.OrderingService.Services;
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using HelloShop.ServiceDefaults.DistributedEvents.Abstractions;
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using MediatR;
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using Microsoft.EntityFrameworkCore;
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namespace HelloShop.OrderingService.Commands.Orders
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{
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public class CreateOrderCommandHandler(IMediator mediator, IDistributedEventService distributedEventService, OrderingServiceDbContext dbContext, IMapper mapper) : IRequestHandler<CreateOrderCommand, bool>
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{
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public async Task<bool> Handle(CreateOrderCommand request, CancellationToken cancellationToken)
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{
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var orderStartedIntegrationEvent = new OrderStartedDistributedEvent(request.UserId);
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await distributedEventService.AddAndSaveEventAsync(orderStartedIntegrationEvent, cancellationToken);
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Address address = mapper.Map<Address>(request);
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IEnumerable<OrderItem> orderItems = mapper.Map<IEnumerable<OrderItem>>(request.OrderItems);
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Buyer? buyer = await dbContext.Set<Buyer>().FindAsync([request.UserId], cancellationToken);
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if (buyer == null)
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{
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buyer = new() { Id = request.UserId, Name = request.UserName };
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await dbContext.AddAsync(buyer, cancellationToken);
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await dbContext.SaveChangesAsync(cancellationToken);
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}
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PaymentMethod? paymentMethod = await dbContext.Set<PaymentMethod>().SingleOrDefaultAsync(pm => pm.BuyerId == buyer.Id && pm.CardNumber == request.CardNumber, cancellationToken);
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if (paymentMethod == null)
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{
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paymentMethod = new() { BuyerId = buyer.Id, Alias = request.CardAlias, CardNumber = request.CardNumber, SecurityNumber = request.CardSecurityNumber, CardHolderName = request.CardHolderName, Expiration = request.CardExpiration };
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await dbContext.AddAsync(paymentMethod, cancellationToken);
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await dbContext.SaveChangesAsync(cancellationToken);
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}
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Order order = new(buyer.Id, address, orderItems) { PaymentMethodId = paymentMethod.Id };
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await dbContext.AddAsync(order, cancellationToken);
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await dbContext.SaveChangesAsync(cancellationToken);
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await mediator.Publish(new OrderStartedLocalEvent(order), cancellationToken);
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return await Task.FromResult(true);
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}
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}
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public class CreateOrderIdentifiedCommandHandler(IMediator mediator, IClientRequestManager requestManager) : IdentifiedCommandHandler<CreateOrderCommand, bool>(mediator, requestManager)
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{
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protected override bool CreateResultForDuplicateRequest() => default;
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}
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}
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