修改历史记录功能（未完成）

DMS.Application/Services/AppDataStorageService.cs

@@ -41,6 +41,13 @@ public class AppDataStorageService : IAppDataStorageService
     /// 安全字典，用于存储所有MQTT变量别名的数据
     /// </summary>
     public ConcurrentDictionary<int, VariableMqttAliasDto> VariableMqttAliases { get; } = new();
+    
+        
+    
+    /// <summary>
+    /// 安全字典，用于存储所有历史记录
+    /// </summary>
+    public ConcurrentDictionary<int, VariableHistoryDto> VariableHistories { get; } = new();
 
     /// <summary>
     /// 安全字典，用于存储所有日志数据

DMS.Application/Services/HistoryAppService.cs

@@ -0,0 +1,74 @@
+using AutoMapper;
+using DMS.Application.DTOs;
+using DMS.Application.Interfaces;
+using DMS.Core.Interfaces;
+
+namespace DMS.Application.Services;
+
+/// <summary>
+/// 历史记录应用服务实现类，负责处理变量历史记录相关的业务逻辑。
+/// </summary>
+public class HistoryAppService : IHistoryAppService
+{
+    private readonly IRepositoryManager _repoManager;
+    private readonly IMapper _mapper;
+
+    /// <summary>
+    /// 构造函数，注入仓储管理器和AutoMapper。
+    /// </summary>
+    /// <param name="repoManager">仓储管理器实例。</param>
+    /// <param name="mapper">AutoMapper实例。</param>
+    public HistoryAppService(IRepositoryManager repoManager, IMapper mapper)
+    {
+        _repoManager = repoManager;
+        _mapper = mapper;
+    }
+
+    /// <summary>
+    /// 异步获取指定变量的历史记录。
+    /// </summary>
+    /// <param name="variableId">变量ID</param>
+    /// <returns>变量历史记录列表</returns>
+    public async Task<List<VariableHistoryDto>> GetVariableHistoriesAsync(int variableId)
+    {
+        var histories = await _repoManager.VariableHistories.GetByVariableIdAsync(variableId);
+        return _mapper.Map<List<VariableHistoryDto>>(histories);
+    }
+    
+    /// <summary>
+    /// 异步获取指定变量的历史记录，支持条数限制和时间范围筛选。
+    /// </summary>
+    /// <param name="variableId">变量ID</param>
+    /// <param name="limit">返回记录的最大数量，null表示无限制</param>
+    /// <param name="startTime">开始时间，null表示无限制</param>
+    /// <param name="endTime">结束时间，null表示无限制</param>
+    /// <returns>变量历史记录列表</returns>
+    public async Task<List<VariableHistoryDto>> GetVariableHistoriesAsync(int variableId, int? limit = null, DateTime? startTime = null, DateTime? endTime = null)
+    {
+        var histories = await _repoManager.VariableHistories.GetByVariableIdAsync(variableId, limit, startTime, endTime);
+        return _mapper.Map<List<VariableHistoryDto>>(histories);
+    }
+    
+    /// <summary>
+    /// 异步获取所有变量的历史记录。
+    /// </summary>
+    /// <returns>所有变量历史记录列表</returns>
+    public async Task<List<VariableHistoryDto>> GetAllVariableHistoriesAsync()
+    {
+        var histories = await _repoManager.VariableHistories.GetAllAsync();
+        return _mapper.Map<List<VariableHistoryDto>>(histories);
+    }
+    
+    /// <summary>
+    /// 异步获取所有变量的历史记录，支持条数限制和时间范围筛选。
+    /// </summary>
+    /// <param name="limit">返回记录的最大数量，null表示无限制</param>
+    /// <param name="startTime">开始时间，null表示无限制</param>
+    /// <param name="endTime">结束时间，null表示无限制</param>
+    /// <returns>所有变量历史记录列表</returns>
+    public async Task<List<VariableHistoryDto>> GetAllVariableHistoriesAsync(int? limit = null, DateTime? startTime = null, DateTime? endTime = null)
+    {
+        var histories = await _repoManager.VariableHistories.GetAllAsync(limit, startTime, endTime);
+        return _mapper.Map<List<VariableHistoryDto>>(histories);
+    }
+}

DMS.Application/Services/VariableAppService.cs

@@ -285,15 +285,4 @@ public class VariableAppService : IVariableAppService
         // 如果找到了匹配的变量，返回第一个（也是唯一一个）
         return existingVariables.FirstOrDefault();
     }
-    
-    /// <summary>
-    /// 异步获取指定变量的历史记录。
-    /// </summary>
-    /// <param name="variableId">变量ID</param>
-    /// <returns>变量历史记录列表</returns>
-    public async Task<List<VariableHistoryDto>> GetVariableHistoriesAsync(int variableId)
-    {
-        var histories = await _repoManager.VariableHistories.GetByVariableIdAsync(variableId);
-        return _mapper.Map<List<VariableHistoryDto>>(histories);
-    }
 }