Files
TakeoutSaaS.TenantApi/src/Application/TakeoutSaaS.Application/App/Merchants/Handlers/GetMerchantDocumentsQueryHandler.cs

37 lines
1.5 KiB
C#

using MediatR;
using TakeoutSaaS.Application.App.Merchants.Dto;
using TakeoutSaaS.Application.App.Merchants.Queries;
using TakeoutSaaS.Domain.Merchants.Repositories;
using TakeoutSaaS.Shared.Abstractions.Constants;
using TakeoutSaaS.Shared.Abstractions.Exceptions;
using TakeoutSaaS.Shared.Abstractions.Tenancy;
namespace TakeoutSaaS.Application.App.Merchants.Handlers;
/// <summary>
/// 查询证照列表。
/// </summary>
public sealed class GetMerchantDocumentsQueryHandler(
IMerchantRepository merchantRepository,
ITenantProvider tenantProvider)
: IRequestHandler<GetMerchantDocumentsQuery, IReadOnlyList<MerchantDocumentDto>>
{
/// <summary>
/// 查询商户证照列表。
/// </summary>
/// <param name="request">查询请求。</param>
/// <param name="cancellationToken">取消标记。</param>
/// <returns>证照 DTO 列表。</returns>
public async Task<IReadOnlyList<MerchantDocumentDto>> Handle(GetMerchantDocumentsQuery request, CancellationToken cancellationToken)
{
// 1. 获取租户上下文并校验商户存在
var tenantId = tenantProvider.GetCurrentTenantId();
_ = await merchantRepository.FindByIdAsync(request.MerchantId, tenantId, cancellationToken)
?? throw new BusinessException(ErrorCodes.NotFound, "商户不存在");
// 2. 查询证照列表
var documents = await merchantRepository.GetDocumentsAsync(request.MerchantId, tenantId, cancellationToken);
return MerchantMapping.ToDocumentDtos(documents);
}
}