Merge branch 'master' of https://gitea.nxsir.cn/nanxun/IM_NEW

GroupService.WebApi/Application/GroupInvitation/GroupInvitationService.cs

@@ -39,6 +39,13 @@ namespace GroupService.WebApi.Application.GroupInvitation
                 return Result.Fail<GroupInvitationResponse>(ResultCode.PERMISSION_DENIED);
             }
 
+            // 检查是否已存在对该用户的未处理邀请，避免 Duplicate entry 报错
+            var existing = await reposity.FindByGroupIdAndUserIdAsync(groupId, userId);
+            if (existing != null)
+            {
+                return Result.Success(mapper.Map<GroupInvitationResponse>(existing));
+            }
+
             var group = await groupReposity.FindByIdAsync(groupId);
 
             var userProfile = new UserProfile()
@@ -66,6 +73,54 @@ namespace GroupService.WebApi.Application.GroupInvitation
             return Result.Success(mapper.Map<GroupInvitationResponse>(invitation));
         }
 
+        public async Task<Result<object>> CreateBatchAsync(Guid operatorId, List<Guid> userIds, Guid groupId)
+        {
+            var group = await groupReposity.FindByIdAsync(groupId);
+            if (group is null)
+                return Result.Fail(ResultCode.GROUP_NOT_FOUND);
+
+            // 校验操作者是否有权限（群成员/管理员/群主）
+            var operatorMember = await memberReposity.FindOneByGroupIdAndUserIdAsync(groupId, operatorId);
+            if (operatorMember == null)
+                return Result.Fail(ResultCode.PERMISSION_DENIED);
+
+            var operatorInfo = await idService.FindUserByIdAsync(operatorId);
+            var operatorProfile = new UserProfile()
+            {
+                Avatar = operatorInfo.Data?.Avatar,
+                NickName = operatorInfo.Data?.NickName ?? string.Empty
+            };
+
+            var groupProfile = new GroupProfile()
+            {
+                Avatar = group.Avatar,
+                GroupName = group.Name
+            };
+
+            // 批量创建邀请，跳过已存在未处理邀请的用户
+            foreach (var userId in userIds)
+            {
+                var existing = await reposity.FindByGroupIdAndUserIdAsync(groupId, userId);
+                if (existing != null)
+                    continue;
+
+                var userRes = await idService.FindUserByIdAsync(userId);
+                if (!userRes.Succeeded)
+                    continue;
+
+                var userProfile = new UserProfile()
+                {
+                    Avatar = userRes.Data?.Avatar,
+                    NickName = userRes.Data?.NickName ?? string.Empty
+                };
+
+                var invitation = new Domain.Entities.GroupInvitation(
+                    groupId, groupProfile, userId, userProfile, operatorId, operatorProfile);
+                reposity.Create(invitation);
+            }
+
+            return Result.Success();
+        }
         public async Task<Result<object>> HandleAsync(GroupInvitationHandleCommand command)
         {
             var invitation = await reposity.FindByIdAsync(command.InvitationId);