86 lines
3.4 KiB
C#
86 lines
3.4 KiB
C#
using MediatR;
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using Microsoft.Extensions.Logging;
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using TakeoutSaaS.Application.App.Merchants.Commands;
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using TakeoutSaaS.Application.App.Merchants.Dto;
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using TakeoutSaaS.Domain.Merchants.Entities;
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using TakeoutSaaS.Domain.Merchants.Enums;
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using TakeoutSaaS.Domain.Merchants.Repositories;
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using TakeoutSaaS.Shared.Abstractions.Security;
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namespace TakeoutSaaS.Application.App.Merchants.Handlers;
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/// <summary>
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/// 创建商户命令处理器。
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/// </summary>
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public sealed class CreateMerchantCommandHandler(
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IMerchantRepository merchantRepository,
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ICurrentUserAccessor currentUserAccessor,
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ILogger<CreateMerchantCommandHandler> logger)
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: IRequestHandler<CreateMerchantCommand, MerchantDto>
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{
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/// <inheritdoc />
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public async Task<MerchantDto> Handle(CreateMerchantCommand request, CancellationToken cancellationToken)
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{
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// 1. 构建商户实体（RowVersion 由 PostgreSQL xmin 自动管理）
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var merchant = new Merchant
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{
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TenantId = request.TenantId,
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BrandName = request.BrandName.Trim(),
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BrandAlias = request.BrandAlias?.Trim(),
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LogoUrl = request.LogoUrl?.Trim(),
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Category = request.Category?.Trim(),
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ContactPhone = request.ContactPhone.Trim(),
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ContactEmail = request.ContactEmail?.Trim(),
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Status = request.Status,
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JoinedAt = DateTime.UtcNow
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};
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// 2. 如果状态为已通过，设置审核通过时间和审核人
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if (request.Status == MerchantStatus.Approved)
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{
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merchant.ApprovedAt = DateTime.UtcNow;
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merchant.ApprovedBy = currentUserAccessor.UserId;
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}
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// 3. 持久化商户
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await merchantRepository.AddMerchantAsync(merchant, cancellationToken);
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await merchantRepository.SaveChangesAsync(cancellationToken);
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// 4. 如果状态为已通过，添加默认审核通过记录
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if (request.Status == MerchantStatus.Approved)
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{
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var auditLog = new MerchantAuditLog
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{
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TenantId = merchant.TenantId,
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MerchantId = merchant.Id,
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Action = MerchantAuditAction.ReviewApproved,
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Title = "商户创建时直接通过审核",
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Description = "平台管理员创建商户时选择无需审核，系统自动通过",
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OperatorId = currentUserAccessor.UserId == 0 ? null : currentUserAccessor.UserId,
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OperatorName = currentUserAccessor.UserId == 0 ? "system" : $"user:{currentUserAccessor.UserId}"
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};
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await merchantRepository.AddAuditLogAsync(auditLog, cancellationToken);
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await merchantRepository.SaveChangesAsync(cancellationToken);
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}
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// 5. 记录日志
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logger.LogInformation("创建商户 {MerchantId} - {BrandName}，状态：{Status}", merchant.Id, merchant.BrandName, merchant.Status);
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return MapToDto(merchant);
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}
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private static MerchantDto MapToDto(Merchant merchant) => new()
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{
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Id = merchant.Id,
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TenantId = merchant.TenantId,
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BrandName = merchant.BrandName,
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BrandAlias = merchant.BrandAlias,
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LogoUrl = merchant.LogoUrl,
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Category = merchant.Category,
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ContactPhone = merchant.ContactPhone,
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ContactEmail = merchant.ContactEmail,
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Status = merchant.Status,
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JoinedAt = merchant.JoinedAt,
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CreatedAt = merchant.CreatedAt
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};
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}
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