106 lines
3.8 KiB
C#
106 lines
3.8 KiB
C#
using MediatR;
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using TakeoutSaaS.Application.App.Orders.Dto;
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using TakeoutSaaS.Application.App.Orders.Queries;
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using TakeoutSaaS.Domain.Orders.Entities;
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using TakeoutSaaS.Domain.Orders.Repositories;
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using TakeoutSaaS.Shared.Abstractions.Tenancy;
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namespace TakeoutSaaS.Application.App.Orders.Handlers;
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/// <summary>
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/// 订单详情查询处理器。
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/// </summary>
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public sealed class GetOrderByIdQueryHandler(
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IOrderRepository orderRepository,
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ITenantProvider tenantProvider)
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: IRequestHandler<GetOrderByIdQuery, OrderDto?>
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{
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/// <inheritdoc />
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public async Task<OrderDto?> Handle(GetOrderByIdQuery request, CancellationToken cancellationToken)
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{
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// 1. 获取当前租户
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var tenantId = tenantProvider.GetCurrentTenantId();
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// 2. 查询订单主体
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var order = await orderRepository.FindByIdAsync(request.OrderId, tenantId, cancellationToken);
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if (order == null)
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{
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return null;
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}
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// 3. 查询关联明细
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var items = await orderRepository.GetItemsAsync(order.Id, tenantId, cancellationToken);
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var histories = await orderRepository.GetStatusHistoryAsync(order.Id, tenantId, cancellationToken);
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var refunds = await orderRepository.GetRefundsAsync(order.Id, tenantId, cancellationToken);
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// 4. 映射并返回
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return MapToDto(order, items, histories, refunds);
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}
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private static OrderDto MapToDto(
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Order order,
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IReadOnlyList<OrderItem> items,
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IReadOnlyList<OrderStatusHistory> histories,
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IReadOnlyList<RefundRequest> refunds) => new()
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{
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Id = order.Id,
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TenantId = order.TenantId,
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OrderNo = order.OrderNo,
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StoreId = order.StoreId,
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Channel = order.Channel,
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DeliveryType = order.DeliveryType,
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Status = order.Status,
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PaymentStatus = order.PaymentStatus,
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CustomerName = order.CustomerName,
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CustomerPhone = order.CustomerPhone,
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TableNo = order.TableNo,
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QueueNumber = order.QueueNumber,
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ReservationId = order.ReservationId,
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ItemsAmount = order.ItemsAmount,
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DiscountAmount = order.DiscountAmount,
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PayableAmount = order.PayableAmount,
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PaidAmount = order.PaidAmount,
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PaidAt = order.PaidAt,
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FinishedAt = order.FinishedAt,
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CancelledAt = order.CancelledAt,
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CancelReason = order.CancelReason,
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Remark = order.Remark,
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Items = items.Select(x => new OrderItemDto
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{
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Id = x.Id,
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OrderId = x.OrderId,
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ProductId = x.ProductId,
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ProductName = x.ProductName,
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SkuName = x.SkuName,
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Unit = x.Unit,
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Quantity = x.Quantity,
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UnitPrice = x.UnitPrice,
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DiscountAmount = x.DiscountAmount,
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SubTotal = x.SubTotal,
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AttributesJson = x.AttributesJson
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}).ToList(),
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StatusHistory = histories.Select(x => new OrderStatusHistoryDto
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{
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Id = x.Id,
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OrderId = x.OrderId,
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Status = x.Status,
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OperatorId = x.OperatorId,
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Notes = x.Notes,
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OccurredAt = x.OccurredAt
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}).ToList(),
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Refunds = refunds.Select(x => new RefundRequestDto
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{
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Id = x.Id,
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OrderId = x.OrderId,
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RefundNo = x.RefundNo,
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Amount = x.Amount,
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Reason = x.Reason,
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Status = x.Status,
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RequestedAt = x.RequestedAt,
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ProcessedAt = x.ProcessedAt,
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ReviewNotes = x.ReviewNotes
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}).ToList(),
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CreatedAt = order.CreatedAt
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};
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}
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