按照软件设计文档开始重构代码01

DMS.Application/Services/MqttAliasAppService.cs

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+using AutoMapper;
+using DMS.Core.Interfaces;
+using DMS.Core.Models;
+using DMS.Application.DTOs;
+using DMS.Application.Interfaces;
+
+namespace DMS.Application.Services;
+
+/// <summary>
+/// 实现MQTT别名管理的应用服务。
+/// </summary>
+public class MqttAliasAppService : IMqttAliasAppService
+{
+    private readonly IRepositoryManager _repoManager;
+    private readonly IMapper _mapper;
+
+    public MqttAliasAppService(IRepositoryManager repoManager, IMapper mapper)
+    {
+        _repoManager = repoManager;
+        _mapper = mapper;
+    }
+
+    public async Task<VariableMqttAliasDto> GetMqttAliasByIdAsync(int id)
+    {
+        var mqttAlias = await _repoManager.VariableMqttAliases.GetByIdAsync(id);
+        return _mapper.Map<VariableMqttAliasDto>(mqttAlias);
+    }
+
+    public async Task<List<VariableMqttAliasDto>> GetAllMqttAliasesAsync()
+    {
+        var mqttAliases = await _repoManager.VariableMqttAliases.GetAllAsync();
+        return _mapper.Map<List<VariableMqttAliasDto>>(mqttAliases);
+    }
+
+    public async Task<int> CreateMqttAliasAsync(VariableMqttAliasDto mqttAliasDto)
+    {
+        var mqttAlias = _mapper.Map<VariableMqttAlias>(mqttAliasDto);
+        await _repoManager.VariableMqttAliases.AddAsync(mqttAlias);
+        await _repoManager.CommitAsync();
+        return mqttAlias.Id;
+    }
+
+    public async Task UpdateMqttAliasAsync(VariableMqttAliasDto mqttAliasDto)
+    {
+        var mqttAlias = await _repoManager.VariableMqttAliases.GetByIdAsync(mqttAliasDto.Id);
+        if (mqttAlias == null)
+        {
+            throw new ApplicationException($"MQTT Alias with ID {mqttAliasDto.Id} not found.");
+        }
+        _mapper.Map(mqttAliasDto, mqttAlias);
+        await _repoManager.VariableMqttAliases.UpdateAsync(mqttAlias);
+        await _repoManager.CommitAsync();
+    }
+
+    public async Task DeleteMqttAliasAsync(int id)
+    {
+        await _repoManager.VariableMqttAliases.DeleteAsync(id);
+        await _repoManager.CommitAsync();
+    }
+}