feat: 菜单管理重构及MQTT服务器功能增强

DMS.Application/Services/Database/MenuAppService.cs

@@ -0,0 +1,128 @@
+using AutoMapper;
+using DMS.Core.Interfaces;
+using DMS.Core.Models;
+using DMS.Application.DTOs;
+using DMS.Application.Interfaces.Database;
+using DMS.Application.Interfaces;
+
+namespace DMS.Application.Services.Database;
+
+/// <summary>
+/// 菜单应用服务，负责处理菜单相关的业务逻辑。
+/// 实现 <see cref="IMenuAppService"/> 接口。
+/// </summary>
+public class MenuAppService : IMenuAppService
+{
+    private readonly IRepositoryManager _repoManager;
+    private readonly IMapper _mapper;
+
+    /// <summary>
+    /// 构造函数，通过依赖注入获取仓储管理器和AutoMapper实例。
+    /// </summary>
+    /// <param name="repoManager">仓储管理器实例。</param>
+    /// <param name="mapper">AutoMapper 实例。</param>
+    public MenuAppService(IRepositoryManager repoManager, IMapper mapper)
+    {
+        _repoManager = repoManager;
+        _mapper = mapper;
+    }
+
+    /// <summary>
+    /// 异步根据ID获取菜单数据传输对象。
+    /// </summary>
+    /// <param name="id">菜单ID。</param>
+    /// <returns>菜单数据传输对象。</returns>
+    public async Task<MenuBeanDto> GetMenuByIdAsync(int id)
+    {
+        var menu = await _repoManager.Menus.GetByIdAsync(id);
+        return _mapper.Map<MenuBeanDto>(menu);
+    }
+
+    /// <summary>
+    /// 异步获取所有菜单数据传输对象列表。
+    /// </summary>
+    /// <returns>菜单数据传输对象列表。</returns>
+    public async Task<List<MenuBeanDto>> GetAllMenusAsync()
+    {
+        var menus = await _repoManager.Menus.GetAllAsync();
+        return _mapper.Map<List<MenuBeanDto>>(menus);
+    }
+
+    /// <summary>
+    /// 异步创建一个新菜单（事务性操作）。
+    /// </summary>
+    /// <param name="menuDto">要创建的菜单数据传输对象。</param>
+    /// <returns>新创建菜单的ID。</returns>
+    /// <exception cref="ApplicationException">如果创建菜单时发生错误。</exception>
+    public async Task<int> CreateMenuAsync(MenuBeanDto menuDto)
+    {
+        try
+        {
+            await _repoManager.BeginTranAsync();
+            var menu = _mapper.Map<MenuBean>(menuDto);
+            await _repoManager.Menus.AddAsync(menu);
+            await _repoManager.CommitAsync();
+            return menu.Id;
+        }
+        catch (Exception ex)
+        {
+            await _repoManager.RollbackAsync();
+            throw new ApplicationException("创建菜单时发生错误，操作已回滚。", ex);
+        }
+    }
+
+    /// <summary>
+    /// 异步更新一个已存在的菜单（事务性操作）。
+    /// </summary>
+    /// <param name="menuDto">要更新的菜单数据传输对象。</param>
+    /// <returns>受影响的行数。</returns>
+    /// <exception cref="ApplicationException">如果找不到菜单或更新菜单时发生错误。</exception>
+    public async Task<int> UpdateMenuAsync(MenuBeanDto menuDto)
+    {
+        try
+        {
+            await _repoManager.BeginTranAsync();
+            var menu = await _repoManager.Menus.GetByIdAsync(menuDto.Id);
+            if (menu == null)
+            {
+                throw new ApplicationException($"Menu with ID {menuDto.Id} not found.");
+            }
+            _mapper.Map(menuDto, menu);
+            int res = await _repoManager.Menus.UpdateAsync(menu);
+            await _repoManager.CommitAsync();
+            return res;
+        }
+        catch (Exception ex)
+        {
+            await _repoManager.RollbackAsync();
+            throw new ApplicationException("更新菜单时发生错误，操作已回滚。", ex);
+        }
+    }
+
+    /// <summary>
+    /// 异步删除一个菜单（事务性操作）。
+    /// </summary>
+    /// <param name="id">要删除菜单的ID。</param>
+    /// <returns>如果删除成功则为 true，否则为 false。</returns>
+    /// <exception cref="InvalidOperationException">如果删除菜单失败。</exception>
+    /// <exception cref="ApplicationException">如果删除菜单时发生其他错误。</exception>
+    public async Task<bool> DeleteMenuAsync(int id)
+    {
+        try
+        {
+            await _repoManager.BeginTranAsync();
+            var delRes = await _repoManager.Menus.DeleteByIdAsync(id);
+            if (delRes == 0)
+            {
+                throw new InvalidOperationException($"删除菜单失败：菜单ID:{id}，请检查菜单Id是否存在");
+            }
+            await _repoManager.CommitAsync();
+            return true;
+        }
+        catch (Exception ex)
+        {
+            await _repoManager.RollbackAsync();
+            throw new ApplicationException("删除菜单时发生错误，操作已回滚。", ex);
+        }
+    }
+}