69 lines
2.7 KiB
C#
69 lines
2.7 KiB
C#
using MediatR;
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using TakeoutSaaS.Application.App.Payments.Dto;
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using TakeoutSaaS.Application.App.Payments.Queries;
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using TakeoutSaaS.Domain.Payments.Repositories;
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using TakeoutSaaS.Shared.Abstractions.Results;
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namespace TakeoutSaaS.Application.App.Payments.Handlers;
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/// <summary>
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/// 支付记录列表查询处理器。
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/// </summary>
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public sealed class SearchPaymentsQueryHandler(
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IPaymentRepository paymentRepository)
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: IRequestHandler<SearchPaymentsQuery, PagedResult<PaymentDto>>
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{
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/// <inheritdoc />
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public async Task<PagedResult<PaymentDto>> Handle(SearchPaymentsQuery request, CancellationToken cancellationToken)
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{
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// 1. 查询支付记录（可选租户过滤）
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var payments = await paymentRepository.SearchAsync(request.TenantId, request.Status, cancellationToken);
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// 2. (空行后) 可选过滤：订单
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if (request.OrderId.HasValue)
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{
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payments = payments.Where(x => x.OrderId == request.OrderId.Value).ToList();
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}
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// 3. (空行后) 排序与分页
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var sorted = ApplySorting(payments, request.SortBy, request.SortDescending);
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var paged = sorted
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.Skip((request.Page - 1) * request.PageSize)
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.Take(request.PageSize)
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.ToList();
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// 4. (空行后) 映射 DTO 并返回分页结果
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var items = paged.Select(payment => new PaymentDto
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{
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Id = payment.Id,
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TenantId = payment.TenantId,
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OrderId = payment.OrderId,
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Method = payment.Method,
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Status = payment.Status,
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Amount = payment.Amount,
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TradeNo = payment.TradeNo,
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ChannelTransactionId = payment.ChannelTransactionId,
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PaidAt = payment.PaidAt,
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Remark = payment.Remark,
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Payload = payment.Payload,
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CreatedAt = payment.CreatedAt
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}).ToList();
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return new PagedResult<PaymentDto>(items, request.Page, request.PageSize, payments.Count);
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}
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private static IOrderedEnumerable<Domain.Payments.Entities.PaymentRecord> ApplySorting(
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IReadOnlyCollection<Domain.Payments.Entities.PaymentRecord> payments,
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string? sortBy,
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bool sortDescending)
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{
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return sortBy?.ToLowerInvariant() switch
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{
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"paidat" => sortDescending ? payments.OrderByDescending(x => x.PaidAt) : payments.OrderBy(x => x.PaidAt),
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"status" => sortDescending ? payments.OrderByDescending(x => x.Status) : payments.OrderBy(x => x.Status),
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"amount" => sortDescending ? payments.OrderByDescending(x => x.Amount) : payments.OrderBy(x => x.Amount),
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_ => sortDescending ? payments.OrderByDescending(x => x.CreatedAt) : payments.OrderBy(x => x.CreatedAt)
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};
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}
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}
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