103 lines
3.6 KiB
C#
103 lines
3.6 KiB
C#
using MediatR;
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using System.Text.Json;
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using TakeoutSaaS.Application.App.Personal.Dto;
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using TakeoutSaaS.Application.App.Personal.Queries;
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using TakeoutSaaS.Application.App.Personal.Services;
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using TakeoutSaaS.Application.App.Personal.Validators;
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using TakeoutSaaS.Domain.Tenants.Repositories;
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using TakeoutSaaS.Shared.Abstractions.Results;
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namespace TakeoutSaaS.Application.App.Personal.Handlers;
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/// <summary>
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/// 分页查询个人操作记录处理器。
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/// </summary>
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public sealed class SearchPersonalOperationsQueryHandler(
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PersonalContextService personalContextService,
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PersonalDateRangeValidator personalDateRangeValidator,
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IOperationLogRepository operationLogRepository)
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: IRequestHandler<SearchPersonalOperationsQuery, PagedResult<PersonalOperationLogDto>>
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{
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/// <summary>
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/// 处理查询。
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/// </summary>
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/// <param name="request">查询请求。</param>
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/// <param name="cancellationToken">取消标记。</param>
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/// <returns>操作记录分页结果。</returns>
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public async Task<PagedResult<PersonalOperationLogDto>> Handle(SearchPersonalOperationsQuery request, CancellationToken cancellationToken)
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{
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// 1. 获取上下文并解析时间窗
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var context = personalContextService.GetRequiredContext();
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var dateRange = personalDateRangeValidator.Resolve(request.From, request.To);
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// 2. 解析分页参数（默认 50，上限 50）
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var page = request.Page <= 0 ? 1 : request.Page;
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var pageSize = request.PageSize <= 0 ? 50 : Math.Min(request.PageSize, 50);
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// 3. 查询并映射
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var paged = await operationLogRepository.SearchByOperatorPagedAsync(
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context.TenantId,
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context.UserId.ToString(),
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dateRange.From,
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dateRange.To,
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page,
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pageSize,
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cancellationToken);
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var items = paged.Items.Select(log => new PersonalOperationLogDto
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{
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OperationId = log.Id,
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OperatorUserId = ParseOperatorUserId(log.OperatorId, context.UserId),
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ActionType = log.OperationType,
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TargetType = log.TargetType,
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TargetId = ResolveTargetId(log.TargetIds),
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IsSuccess = log.Success,
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OccurredAt = log.CreatedAt
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}).ToList();
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// 4. 返回分页结果
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return new PagedResult<PersonalOperationLogDto>(items, page, pageSize, paged.Total);
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}
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private static long ParseOperatorUserId(string? operatorId, long fallbackUserId)
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{
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// 1. 尝试从字符串解析用户 ID
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if (long.TryParse(operatorId, out var parsed) && parsed > 0)
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{
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return parsed;
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}
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// 2. 解析失败时回退当前用户
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return fallbackUserId;
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}
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private static string? ResolveTargetId(string? targetIds)
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{
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// 1. 空值直接返回
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if (string.IsNullOrWhiteSpace(targetIds))
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{
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return null;
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}
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// 2. 尝试解析 JSON 数组并提取首个元素
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var normalized = targetIds.Trim();
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if (normalized.StartsWith("[", StringComparison.Ordinal))
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{
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try
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{
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using var doc = JsonDocument.Parse(normalized);
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if (doc.RootElement.ValueKind == JsonValueKind.Array && doc.RootElement.GetArrayLength() > 0)
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{
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return doc.RootElement[0].ToString();
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}
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}
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catch (JsonException)
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{
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// 3. JSON 解析失败时按原始字符串返回
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}
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}
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// 4. 非数组场景直接返回原值
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return normalized;
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}
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}
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