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wells
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package com.tailbet.service.impl;
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import com.tailbet.model.entity.Group;
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import com.tailbet.model.entity.GroupMember;
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import com.tailbet.mapper.GroupMapper;
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import com.tailbet.mapper.GroupMemberMapper;
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import com.tailbet.mapper.UserMapper;
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import com.tailbet.service.IGroupService;
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import com.tailbet.service.IAuditService;
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import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
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import lombok.RequiredArgsConstructor;
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import lombok.extern.slf4j.Slf4j;
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import org.springframework.stereotype.Service;
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import org.springframework.transaction.annotation.Transactional;
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import java.time.LocalDateTime;
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import java.util.List;
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/**
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* 群Service实现
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*/
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@Slf4j
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@RequiredArgsConstructor
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@Service
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public class GroupServiceImpl implements IGroupService {
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private final GroupMapper groupMapper;
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private final GroupMemberMapper groupMemberMapper;
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private final UserMapper userMapper;
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private final IAuditService auditService;
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/**
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* 获取群信息
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*/
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@Override
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public Group getById(Long groupId) {
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return groupMapper.selectById(groupId);
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}
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/**
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* 获取用户的群列表
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*/
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@Override
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public List<Group> getUserGroups(Long userId) {
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List<GroupMember> members = groupMemberMapper.selectList(new LambdaQueryWrapper<GroupMember>()
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.eq(GroupMember::getUserId, userId));
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if (members.isEmpty()) {
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return List.of();
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}
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List<Long> groupIds = members.stream()
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.map(GroupMember::getGroupId)
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.toList();
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return groupMapper.selectList(new LambdaQueryWrapper<Group>()
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.in(Group::getId, groupIds)
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.eq(Group::getStatus, 1));
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}
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/**
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* 拉用户入群
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*/
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@Override
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@Transactional
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public void pullUser(Long groupId, Long userId, Long operatorId) {
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// 检查是否已在群中
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GroupMember existing = groupMemberMapper.selectOne(new LambdaQueryWrapper<GroupMember>()
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.eq(GroupMember::getGroupId, groupId)
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.eq(GroupMember::getUserId, userId));
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if (existing != null) {
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throw new RuntimeException("用户已在群中");
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}
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GroupMember member = new GroupMember();
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member.setGroupId(groupId);
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member.setUserId(userId);
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member.setRole(ROLE_NORMAL);
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member.setJoinTime(LocalDateTime.now());
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member.setCreateTime(LocalDateTime.now());
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member.setUpdateTime(LocalDateTime.now());
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groupMemberMapper.insert(member);
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// 审计日志
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auditService.log(groupId, null, operatorId, "PULL_USER",
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String.format("{\"userId\":%d}", userId));
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}
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/**
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* 踢出用户
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*/
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@Override
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@Transactional
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public void kickUser(Long groupId, Long targetUserId, Long operatorId) {
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Group group = groupMapper.selectById(groupId);
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// 检查权限
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GroupMember operator = groupMemberMapper.selectOne(new LambdaQueryWrapper<GroupMember>()
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.eq(GroupMember::getGroupId, groupId)
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.eq(GroupMember::getUserId, operatorId));
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if (operator == null) {
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throw new RuntimeException("你不是群成员");
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}
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// 只有群主和管理员可以踢人
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if (operator.getRole() != ROLE_OWNER && operator.getRole() != ROLE_ADMIN) {
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throw new RuntimeException("只有群主和管理员可以踢人");
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}
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// 不能踢群主
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if (group.getOwnerUserId().equals(targetUserId)) {
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throw new RuntimeException("不能踢出群主");
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}
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// 删除成员
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groupMemberMapper.delete(new LambdaQueryWrapper<GroupMember>()
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.eq(GroupMember::getGroupId, groupId)
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.eq(GroupMember::getUserId, targetUserId));
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// 审计日志
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auditService.log(groupId, null, operatorId, "KICK_USER",
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String.format("{\"targetUserId\":%d}", targetUserId));
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}
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/**
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* 设置管理员
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*/
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@Override
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@Transactional
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public void setAdmin(Long groupId, Long targetUserId, Long operatorId) {
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Group group = groupMapper.selectById(groupId);
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// 只有群主可以设置管理员
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if (!group.getOwnerUserId().equals(operatorId)) {
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throw new RuntimeException("只有群主可以设置管理员");
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}
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GroupMember member = groupMemberMapper.selectOne(new LambdaQueryWrapper<GroupMember>()
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.eq(GroupMember::getGroupId, groupId)
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.eq(GroupMember::getUserId, targetUserId));
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if (member == null) {
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throw new RuntimeException("目标用户不是群成员");
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}
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member.setRole(ROLE_ADMIN);
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member.setUpdateTime(LocalDateTime.now());
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groupMemberMapper.updateById(member);
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// 审计日志
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auditService.log(groupId, null, operatorId, "SET_ADMIN",
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String.format("{\"targetUserId\":%d}", targetUserId));
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}
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/**
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* 取消管理员
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*/
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@Override
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@Transactional
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public void removeAdmin(Long groupId, Long targetUserId, Long operatorId) {
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Group group = groupMapper.selectById(groupId);
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if (!group.getOwnerUserId().equals(operatorId)) {
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throw new RuntimeException("只有群主可以取消管理员");
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}
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GroupMember member = groupMemberMapper.selectOne(new LambdaQueryWrapper<GroupMember>()
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.eq(GroupMember::getGroupId, groupId)
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.eq(GroupMember::getUserId, targetUserId));
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if (member == null) {
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throw new RuntimeException("目标用户不是群成员");
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}
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member.setRole(ROLE_NORMAL);
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member.setUpdateTime(LocalDateTime.now());
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groupMemberMapper.updateById(member);
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// 审计日志
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auditService.log(groupId, null, operatorId, "REMOVE_ADMIN",
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String.format("{\"targetUserId\":%d}", targetUserId));
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}
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/**
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* 获取群成员
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*/
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@Override
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public List<GroupMember> getMembers(Long groupId) {
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return groupMemberMapper.selectList(new LambdaQueryWrapper<GroupMember>()
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.eq(GroupMember::getGroupId, groupId));
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}
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/**
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* 检查用户是否是群主
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*/
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@Override
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public boolean isOwner(Long groupId, Long userId) {
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Group group = groupMapper.selectById(groupId);
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return group != null && group.getOwnerUserId().equals(userId);
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}
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/**
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* 检查用户是否是管理员
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*/
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@Override
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public boolean isAdmin(Long groupId, Long userId) {
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GroupMember member = groupMemberMapper.selectOne(new LambdaQueryWrapper<GroupMember>()
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.eq(GroupMember::getGroupId, groupId)
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.eq(GroupMember::getUserId, userId));
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return member != null && (member.getRole() == ROLE_ADMIN || member.getRole() == ROLE_OWNER);
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}
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}
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