Merge branch 'feature-nxdev' of https://gitea.nxsir.cn/code/IM into feature-nxdev

2026-02-03 22:46:34 +08:00
parent 136199290b 83be063e7f
commit 6d747327df
73 changed files with 1342 additions and 484 deletions
@@ -0,0 +1,110 @@
+using AutoMapper;
+using IM_API.Domain.Events;
+using IM_API.Dtos.Group;
+using IM_API.Exceptions;
+using IM_API.Interface.Services;
+using IM_API.Models;
+using IM_API.Tools;
+using MassTransit;
+using Microsoft.EntityFrameworkCore;
+using System;
+
+namespace IM_API.Services
+{
+    public class GroupService : IGroupService
+    {
+        private readonly ImContext _context;
+        private readonly IMapper _mapper;
+        private readonly ILogger<GroupService> _logger;
+        private readonly IPublishEndpoint _endPoint;
+        public GroupService(ImContext context, IMapper mapper, ILogger<GroupService> logger, IPublishEndpoint publishEndpoint)
+        {
+            _context = context;
+            _mapper = mapper;
+            _logger = logger;
+            _endPoint = publishEndpoint;
+        }
+
+        private async Task<List<GroupInvite>> GetGroupInvites(int userId, int groupId, List<int> ids)
+        {
+            DateTime dateTime = DateTime.UtcNow;
+            //验证被邀请用户是否为好友
+            var validFriendIds = await _context.Friends
+            .Where(f => f.UserId == userId && ids.Contains(f.FriendId))
+            .Select(f => f.FriendId)
+            .ToListAsync();
+            //创建群成员对象
+            return validFriendIds.Select(fid => new GroupInvite
+            {
+                Created = dateTime,
+                GroupId = groupId,
+                InvitedUser = fid,
+                StateEnum = GroupInviteState.Pending,
+                InviteUser = userId
+            }).ToList();
+        }
+
+        public async Task<GroupInfoDto> CreateGroup(int userId, GroupCreateDto groupCreateDto, List<int> userIds)
+        {
+            using var transaction = await _context.Database.BeginTransactionAsync();
+            try
+            {
+                //先创建群
+                DateTime dateTime = DateTime.UtcNow;
+                Group group = _mapper.Map<Group>(groupCreateDto);
+                group.GroupMaster = userId;
+                _context.Groups.Add(group);
+                await _context.SaveChangesAsync();
+                var groupInvites = new List<GroupInvite>();
+                if (userIds.Count > 0)
+                {
+                    groupInvites = await GetGroupInvites(userId,group.Id, userIds);
+                    _context.GroupInvites.AddRange(groupInvites);
+                }
+                var groupMember = new GroupMember
+                {
+                    UserId = userId,
+                    Created = dateTime,
+                    RoleEnum = GroupMemberRole.Master,
+                    GroupId = group.Id
+                };
+                _context.GroupMembers.Add(groupMember);
+                await _context.SaveChangesAsync();
+                await transaction.CommitAsync();
+                await _endPoint.Publish(new GroupInviteEvent
+                {
+                    AggregateId = userId.ToString(),
+                    GroupId = group.Id,
+                    EventId = Guid.NewGuid(),
+                    OccurredAt = dateTime,
+                    Ids = groupInvites.Select(x => x.Id).ToList(),
+                    OperatorId = userId,
+                    UserId = userId
+                });
+                return _mapper.Map<GroupInfoDto>(group);
+            }
+            catch
+            {
+                await transaction.RollbackAsync();
+                throw;
+            }
+        }
+
+        public Task DeleteGroup(int userId, int groupId)
+        {
+            throw new NotImplementedException();
+        }
+
+        public async Task InviteUsers(int userId, int groupId, List<int> userIds)
+        {
+            var group = await _context.Groups.FirstOrDefaultAsync(
+                x => x.Id == groupId) ?? throw new BaseException(CodeDefine.GROUP_NOT_FOUND);
+            
+        }
+
+        public Task JoinGroup(int userId, int groupId)
+        {
+            throw new NotImplementedException();
+        }
+    }
+}