93 lines
3.3 KiB
C#
93 lines
3.3 KiB
C#
using MediatR;
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using Microsoft.Extensions.Logging;
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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.Ids;
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namespace TakeoutSaaS.Application.App.Tenants.Handlers;
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/// <summary>
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/// 租户注册处理器。
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/// </summary>
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public sealed class RegisterTenantCommandHandler(
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ITenantRepository tenantRepository,
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IIdGenerator idGenerator,
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ILogger<RegisterTenantCommandHandler> logger)
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: IRequestHandler<RegisterTenantCommand, TenantDto>
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{
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/// <inheritdoc />
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public async Task<TenantDto> Handle(RegisterTenantCommand request, CancellationToken cancellationToken)
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{
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// 1. 校验订阅时长
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if (request.DurationMonths <= 0)
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{
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throw new BusinessException(ErrorCodes.BadRequest, "订阅时长必须大于 0");
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}
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// 2. 检查租户编码唯一性
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if (await tenantRepository.ExistsByCodeAsync(request.Code, cancellationToken))
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{
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throw new BusinessException(ErrorCodes.Conflict, $"租户编码 {request.Code} 已存在");
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}
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// 3. 计算生效时间
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var now = DateTime.UtcNow;
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var effectiveFrom = request.EffectiveFrom ?? now;
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var effectiveTo = effectiveFrom.AddMonths(request.DurationMonths);
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// 4. 构建租户实体
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var tenant = new Tenant
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{
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Id = idGenerator.NextId(),
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Code = request.Code.Trim(),
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Name = request.Name,
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ShortName = request.ShortName,
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Industry = request.Industry,
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ContactName = request.ContactName,
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ContactPhone = request.ContactPhone,
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ContactEmail = request.ContactEmail,
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Status = TenantStatus.PendingReview,
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EffectiveFrom = effectiveFrom,
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EffectiveTo = effectiveTo
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};
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// 5. 构建订阅实体
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var subscription = new TenantSubscription
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{
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Id = idGenerator.NextId(),
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TenantId = tenant.Id,
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TenantPackageId = request.TenantPackageId,
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EffectiveFrom = effectiveFrom,
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EffectiveTo = effectiveTo,
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NextBillingDate = effectiveTo,
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Status = SubscriptionStatus.Pending,
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AutoRenew = request.AutoRenew,
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Notes = "Init subscription"
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};
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// 6. 持久化租户、订阅和审计日志
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await tenantRepository.AddTenantAsync(tenant, cancellationToken);
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await tenantRepository.AddSubscriptionAsync(subscription, cancellationToken);
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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.RegistrationSubmitted,
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Title = "租户注册",
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Description = $"提交套餐 {request.TenantPackageId}，时长 {request.DurationMonths} 月"
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}, cancellationToken);
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await tenantRepository.SaveChangesAsync(cancellationToken);
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// 7. 记录日志
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logger.LogInformation("已注册租户 {TenantCode}", tenant.Code);
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// 8. 返回 DTO
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return TenantMapping.ToDto(tenant, subscription, null);
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}
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}
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