79 lines
2.9 KiB
C#
79 lines
2.9 KiB
C#
using MediatR;
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using TakeoutSaaS.Application.App.Tenants.Commands;
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using TakeoutSaaS.Application.App.Tenants.Dto;
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using TakeoutSaaS.Domain.Tenants.Entities;
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using TakeoutSaaS.Domain.Tenants.Enums;
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using TakeoutSaaS.Domain.Tenants.Repositories;
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using TakeoutSaaS.Shared.Abstractions.Constants;
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using TakeoutSaaS.Shared.Abstractions.Exceptions;
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using TakeoutSaaS.Shared.Abstractions.Security;
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namespace TakeoutSaaS.Application.App.Tenants.Handlers;
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/// <summary>
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/// 冻结租户处理器。
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/// </summary>
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public sealed class FreezeTenantCommandHandler(
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ITenantRepository tenantRepository,
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ICurrentUserAccessor currentUserAccessor)
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: IRequestHandler<FreezeTenantCommand, TenantDto>
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{
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/// <inheritdoc />
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public async Task<TenantDto> Handle(FreezeTenantCommand request, CancellationToken cancellationToken)
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{
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// 1. 获取租户与订阅
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var tenant = await tenantRepository.FindByIdAsync(request.TenantId, cancellationToken)
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?? throw new BusinessException(ErrorCodes.NotFound, "租户不存在");
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var subscription = await tenantRepository.GetActiveSubscriptionAsync(request.TenantId, cancellationToken);
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var verification = await tenantRepository.GetVerificationProfileAsync(request.TenantId, cancellationToken);
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var previousStatus = tenant.Status;
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if (tenant.Status == TenantStatus.Closed)
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{
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throw new BusinessException(ErrorCodes.BadRequest, "已注销租户不可冻结");
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}
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if (tenant.Status == TenantStatus.Suspended)
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{
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throw new BusinessException(ErrorCodes.Conflict, "租户已被冻结");
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}
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// 2. 更新租户状态
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tenant.Status = TenantStatus.Suspended;
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tenant.SuspendedAt = DateTime.UtcNow;
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tenant.SuspensionReason = request.Reason;
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// 3. (空行后) 同步暂停订阅
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if (subscription != null)
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{
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subscription.Status = SubscriptionStatus.Suspended;
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await tenantRepository.UpdateSubscriptionAsync(subscription, cancellationToken);
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}
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await tenantRepository.UpdateTenantAsync(tenant, cancellationToken);
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// 4. (空行后) 记录审计
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var actorName = currentUserAccessor.IsAuthenticated
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? $"user:{currentUserAccessor.UserId}"
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: "system";
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await tenantRepository.AddAuditLogAsync(new TenantAuditLog
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{
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TenantId = tenant.Id,
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Action = TenantAuditAction.StatusChanged,
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Title = "冻结租户",
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Description = request.Reason,
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OperatorId = currentUserAccessor.UserId == 0 ? null : currentUserAccessor.UserId,
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OperatorName = actorName,
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PreviousStatus = previousStatus,
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CurrentStatus = tenant.Status
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}, cancellationToken);
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// 5. 保存并返回
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await tenantRepository.SaveChangesAsync(cancellationToken);
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return TenantMapping.ToDto(tenant, subscription, verification);
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}
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}
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