87 lines
3.4 KiB
C#
87 lines
3.4 KiB
C#
using MediatR;
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using Microsoft.Extensions.Logging;
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using TakeoutSaaS.Application.App.Deliveries.Commands;
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using TakeoutSaaS.Application.App.Deliveries.Dto;
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using TakeoutSaaS.Domain.Deliveries.Entities;
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using TakeoutSaaS.Domain.Deliveries.Repositories;
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using TakeoutSaaS.Domain.Orders.Repositories;
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using TakeoutSaaS.Shared.Abstractions.Constants;
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using TakeoutSaaS.Shared.Abstractions.Exceptions;
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namespace TakeoutSaaS.Application.App.Deliveries.Handlers;
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/// <summary>
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/// 创建配送单命令处理器。
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/// </summary>
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public sealed class CreateDeliveryOrderCommandHandler(
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IDeliveryRepository deliveryRepository,
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IOrderRepository orderRepository,
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ILogger<CreateDeliveryOrderCommandHandler> logger)
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: IRequestHandler<CreateDeliveryOrderCommand, DeliveryOrderDto>
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{
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/// <inheritdoc />
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public async Task<DeliveryOrderDto> Handle(CreateDeliveryOrderCommand request, CancellationToken cancellationToken)
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{
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// 1. 查询订单以确定租户
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var order = await orderRepository.FindByIdAsync(request.OrderId, cancellationToken);
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if (order is null)
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{
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throw new BusinessException(ErrorCodes.NotFound, "订单不存在");
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}
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// 2. (空行后) 构建配送单实体并写入租户
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var deliveryOrder = new DeliveryOrder
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{
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TenantId = order.TenantId,
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OrderId = request.OrderId,
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Provider = request.Provider,
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ProviderOrderId = request.ProviderOrderId?.Trim(),
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Status = request.Status,
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DeliveryFee = request.DeliveryFee,
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CourierName = request.CourierName?.Trim(),
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CourierPhone = request.CourierPhone?.Trim(),
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DispatchedAt = request.DispatchedAt,
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PickedUpAt = request.PickedUpAt,
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DeliveredAt = request.DeliveredAt,
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FailureReason = request.FailureReason?.Trim()
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};
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// 3. (空行后) 持久化配送单
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await deliveryRepository.AddDeliveryOrderAsync(deliveryOrder, cancellationToken);
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await deliveryRepository.SaveChangesAsync(cancellationToken);
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// 4. (空行后) 记录日志
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logger.LogInformation("创建配送单 {DeliveryOrderId} 对应订单 {OrderId}", deliveryOrder.Id, deliveryOrder.OrderId);
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// 5. (空行后) 映射 DTO 返回
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return MapToDto(deliveryOrder, []);
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}
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private static DeliveryOrderDto MapToDto(DeliveryOrder deliveryOrder, IReadOnlyList<DeliveryEvent> events) => new()
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{
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Id = deliveryOrder.Id,
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TenantId = deliveryOrder.TenantId,
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OrderId = deliveryOrder.OrderId,
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Provider = deliveryOrder.Provider,
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ProviderOrderId = deliveryOrder.ProviderOrderId,
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Status = deliveryOrder.Status,
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DeliveryFee = deliveryOrder.DeliveryFee,
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CourierName = deliveryOrder.CourierName,
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CourierPhone = deliveryOrder.CourierPhone,
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DispatchedAt = deliveryOrder.DispatchedAt,
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PickedUpAt = deliveryOrder.PickedUpAt,
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DeliveredAt = deliveryOrder.DeliveredAt,
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FailureReason = deliveryOrder.FailureReason,
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CreatedAt = deliveryOrder.CreatedAt,
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Events = events.Select(x => new DeliveryEventDto
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{
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Id = x.Id,
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DeliveryOrderId = x.DeliveryOrderId,
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EventType = x.EventType,
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Message = x.Message,
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OccurredAt = x.OccurredAt,
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Payload = x.Payload
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}).ToList()
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};
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}
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