feat: 用户管理后端与日志库迁移

src/Application/TakeoutSaaS.Application/Identity/Handlers/RestoreIdentityUserCommandHandler.cs

@@ -0,0 +1,87 @@
+using MediatR;
+using System.Text.Json;
+using TakeoutSaaS.Application.Identity.Abstractions;
+using TakeoutSaaS.Application.Identity.Commands;
+using TakeoutSaaS.Domain.Identity.Repositories;
+using TakeoutSaaS.Domain.Tenants.Entities;
+using TakeoutSaaS.Domain.Tenants.Repositories;
+using TakeoutSaaS.Shared.Abstractions.Constants;
+using TakeoutSaaS.Shared.Abstractions.Exceptions;
+using TakeoutSaaS.Shared.Abstractions.Security;
+using TakeoutSaaS.Shared.Abstractions.Tenancy;
+
+namespace TakeoutSaaS.Application.Identity.Handlers;
+
+/// <summary>
+/// 恢复用户处理器。
+/// </summary>
+public sealed class RestoreIdentityUserCommandHandler(
+    IIdentityUserRepository identityUserRepository,
+    ITenantProvider tenantProvider,
+    ICurrentUserAccessor currentUserAccessor,
+    IAdminAuthService adminAuthService,
+    IOperationLogRepository operationLogRepository)
+    : IRequestHandler<RestoreIdentityUserCommand, bool>
+{
+    /// <inheritdoc />
+    public async Task<bool> Handle(RestoreIdentityUserCommand request, CancellationToken cancellationToken)
+    {
+        // 1. 获取操作者档案并判断权限
+        var currentTenantId = tenantProvider.GetCurrentTenantId();
+        var operatorProfile = await adminAuthService.GetProfileAsync(currentUserAccessor.UserId, cancellationToken);
+        var isSuperAdmin = IdentityUserAccess.IsSuperAdmin(operatorProfile);
+
+        // 2. (空行后) 校验跨租户访问权限
+        if (!isSuperAdmin && request.TenantId.HasValue && request.TenantId.Value != currentTenantId)
+        {
+            throw new BusinessException(ErrorCodes.Forbidden, "禁止跨租户恢复用户");
+        }
+
+        // 3. (空行后) 查询用户实体（包含已删除）
+        var user = await identityUserRepository.GetForUpdateIncludingDeletedAsync(currentTenantId, request.UserId, isSuperAdmin, cancellationToken);
+        if (user == null)
+        {
+            return false;
+        }
+
+        if (!isSuperAdmin && user.TenantId != currentTenantId)
+        {
+            return false;
+        }
+
+        if (!user.DeletedAt.HasValue)
+        {
+            return false;
+        }
+
+        // 4. (空行后) 恢复软删除状态
+        user.DeletedAt = null;
+        user.DeletedBy = null;
+        await identityUserRepository.SaveChangesAsync(cancellationToken);
+
+        // 5. (空行后) 写入操作日志
+        var operatorName = string.IsNullOrWhiteSpace(operatorProfile.DisplayName)
+            ? operatorProfile.Account
+            : operatorProfile.DisplayName;
+        if (string.IsNullOrWhiteSpace(operatorName))
+        {
+            operatorName = $"user:{currentUserAccessor.UserId}";
+        }
+
+        var log = new OperationLog
+        {
+            OperationType = "identity-user:restore",
+            TargetType = "identity_user",
+            TargetIds = JsonSerializer.Serialize(new[] { user.Id }),
+            OperatorId = currentUserAccessor.UserId.ToString(),
+            OperatorName = operatorName,
+            Parameters = JsonSerializer.Serialize(new { userId = user.Id, tenantId = user.TenantId }),
+            Result = JsonSerializer.Serialize(new { userId = user.Id }),
+            Success = true
+        };
+        await operationLogRepository.AddAsync(log, cancellationToken);
+        await operationLogRepository.SaveChangesAsync(cancellationToken);
+
+        return true;
+    }
+}