add(conversationSerivice):后端新增消息会话服务add(main)：完善主面板

2025-12-29 20:39:29 +08:00
parent 06410a75e7
commit cf09984056
21 changed files with 1146 additions and 444 deletions
@@ -0,0 +1,44 @@
+using IM_API.Dtos;
+using IM_API.Exceptions;
+using IM_API.Interface.Services;
+using IM_API.Models;
+using IM_API.Tools;
+using Microsoft.EntityFrameworkCore;
+
+namespace IM_API.Services
+{
+    public class ConversationService : IConversationService
+    {
+        private readonly ImContext _context;
+        public ConversationService(ImContext context)
+        {
+            _context = context;
+        }
+        #region 删除用户会话
+        public async Task<bool> ClearConversationsAsync(int userId)
+        {
+           await _context.Conversations.Where(x => x.UserId == userId).ExecuteDeleteAsync();
+            return true;
+        }
+
+        
+        #endregion
+        #region 获取用户会话列表
+        public async Task<List<Conversation>> GetConversationsAsync(int userId)
+        {
+            return await _context.Conversations.Where(x => x.UserId == userId)
+                .ToListAsync();
+        }
+        #endregion
+        #region 删除单个会话
+        public async Task<bool> DeleteConversationAsync(int conversationId)
+        {
+            var conversation = await _context.Conversations.FirstOrDefaultAsync(x => x.Id == conversationId);
+            if (conversation == null) throw new BaseException(CodeDefine.CONVERSATION_NOT_FOUND);
+            _context.Conversations.Remove(conversation);
+            await _context.SaveChangesAsync();
+            return true;
+        }
+        #endregion
+    }
+}