liujie
2026-08-11 323764c813a09cd56cdab780155ef659dbe0b364
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package com.ruoyi.web.controller.service;
 
import cn.hutool.core.collection.CollUtil;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.ruoyi.system.domain.SysVisitorRecord;
import com.ruoyi.system.mapper.SysVisitorRecordMapper;
import com.ruoyi.web.integration.dahua.DahuaVisitorAccessService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.transaction.support.TransactionSynchronization;
import org.springframework.transaction.support.TransactionSynchronizationManager;
 
import java.util.Date;
import java.util.List;
import java.util.concurrent.TimeUnit;
 
@Service
@Slf4j
@Transactional(rollbackFor = Exception.class)
public class SysVisitorRecordService extends ServiceImpl<SysVisitorRecordMapper, SysVisitorRecord> {
 
    @Autowired
    private RedisTemplate<String, String> redisTemplate;
 
    @Autowired
    private DahuaVisitorAccessService dahuaVisitorAccessService;
 
    private static final String REDIS_KEY_PREFIX = "visitor:expire:";
 
    /**
     * 登记访客时设置 Redis 过期 Key
     */
    public void registerVisitor(SysVisitorRecord record) {
        if (record.getValidEndTime() == null) {
            throw new IllegalArgumentException("访客有效期结束时间不能为空");
        }
        if (!record.getValidEndTime().after(new Date())) {
            log.warn("访客记录 {} 登记时已超期,不下发门禁权限", record.getRecordId());
            autoSignOut(record);
            return;
        }
 
        // 下发门禁权限后设置过期监听,确保登记与到期撤权使用同一条业务链路。
        DahuaVisitorAccessService.OperationResult accessResult = dahuaVisitorAccessService.grant(record);
        registerGrantRollbackCompensation(record, accessResult);
        setRedisExpireKey(record);
 
        log.info("访客 {} 登记成功,有效期至:{}", record.getRecordId(), record.getValidEndTime());
    }
 
    /**
     * 设置 Redis 过期 Key
     */
    private void setRedisExpireKey(SysVisitorRecord record) {
        Date now = new Date();
        Date validEndTime = record.getValidEndTime();
 
        if (validEndTime == null) {
            throw new IllegalArgumentException("访客有效期结束时间不能为空");
        }
 
        // 如果有效期结束时间小于当前时间,直接签离
        if (validEndTime.before(now)) {
            log.warn("访客记录 {} 已超期,直接签离", record.getRecordId());
            autoSignOut(record);
            return;
        }
 
        // 计算过期时间(毫秒)
        long expireTime = validEndTime.getTime() - now.getTime();
        String key = REDIS_KEY_PREFIX + record.getRecordId();
 
        // 设置 Redis Key,过期时间为 validEndTime
        redisTemplate.opsForValue().set(
                key,
                record.getRecordId().toString(),
                expireTime,
                TimeUnit.MILLISECONDS
        );
 
        log.info("设置Redis过期Key成功,Key:{},过期时间:{} 毫秒", key, expireTime);
    }
 
    /**
     * 根据记录ID自动签离(由Redis过期事件触发)
     */
    @Transactional
    public void autoSignOutByRecordId(Long recordId) {
        try {
            // 1. 查询记录
            SysVisitorRecord record = this.getById(recordId);
            if (record == null) {
                log.warn("访客记录不存在,ID:{}", recordId);
                return;
            }
 
            // 2. 检查状态(只有 VISITING 状态才处理)
            if (!"VISITING".equals(record.getStatus())) {
                log.info("访客记录 {} 状态为 {},无需处理", recordId, record.getStatus());
                return;
            }
 
            // 3. 检查是否真的超期(双重检查)
            Date now = new Date();
            if (!record.getValidEndTime().before(now)) {
                log.info("访客记录 {} 有效期未结束,无需签离", recordId);
                return;
            }
 
            // 4. 执行签离
            autoSignOut(record);
 
            // 5. 删除 Redis Key(防止重复触发)
            redisTemplate.delete(REDIS_KEY_PREFIX + recordId);
 
            log.info("Redis过期触发签离成功,记录ID:{},签离时间:{}", recordId, now);
 
        } catch (Exception e) {
            log.error("自动签离失败,记录ID:{}", recordId, e);
            throw e;
        }
    }
 
    /**
     * 执行自动签离
     */
    private void autoSignOut(SysVisitorRecord record) {
        Date now = new Date();
        revokeAccess(record);
        record.setStatus("PENDING_CONFIRM");
        record.setSignTime(now);
        record.setRemark("逾期滞留,等待确认");
        record.setUpdateTime(now);
        this.updateById(record);
    }
 
    /**
     * 撤销访客在大华门禁设备上的人脸及人员权限。
     */
    public void revokeAccess(SysVisitorRecord record) {
        dahuaVisitorAccessService.revoke(record);
    }
 
    private void registerGrantRollbackCompensation(SysVisitorRecord record,
                                                   DahuaVisitorAccessService.OperationResult accessResult) {
        if (accessResult.getSuccessCount() <= 0 || !TransactionSynchronizationManager.isSynchronizationActive()) {
            return;
        }
        TransactionSynchronizationManager.registerSynchronization(new TransactionSynchronization() {
            @Override
            public void afterCompletion(int status) {
                if (status != TransactionSynchronization.STATUS_ROLLED_BACK) {
                    return;
                }
                redisTemplate.delete(REDIS_KEY_PREFIX + record.getRecordId());
                try {
                    dahuaVisitorAccessService.revoke(record);
                    log.info("访客登记事务回滚,大华门禁权限补偿撤销完成,recordId={}", record.getRecordId());
                } catch (Exception e) {
                    log.error("访客登记事务回滚,大华门禁权限补偿撤销失败,recordId={}",
                            record.getRecordId(), e);
                }
            }
        });
    }
 
    /**
     * 更新访客记录(并重置 Redis 过期时间)
     */
    public boolean updateVisitor(SysVisitorRecord record) {
        // 1. 更新记录
        boolean updated = this.updateById(record);
        if (!updated) {
            return false;
        }
 
        // 2. 如果状态变更为 VISITING,重新设置过期时间
        if ("VISITING".equals(record.getStatus())) {
            setRedisExpireKey(record);
        }
 
        // 3. 如果已签离,删除 Redis Key
        if ("SIGNED_OUT".equals(record.getStatus()) ||
                "OVERDUE_AUTO_SIGNED_OUT".equals(record.getStatus())) {
            redisTemplate.delete(REDIS_KEY_PREFIX + record.getRecordId());
        }
 
        return true;
    }
 
    /**
     * 兜底方案:启动时检查所有超期记录
     */
    @Transactional
    public int checkAndAutoSignOutOnStartup() {
        // 查询所有超期记录
        LambdaQueryWrapper<SysVisitorRecord> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(SysVisitorRecord::getStatus, "VISITING")
                .lt(SysVisitorRecord::getValidEndTime, new Date());
 
        List<SysVisitorRecord> overdueRecords = this.list(queryWrapper);
 
        if (CollUtil.isEmpty(overdueRecords)) {
            log.info("启动检查:没有超期访客记录");
            return 0;
        }
 
        log.info("启动检查:发现 {} 条超期记录,开始处理", overdueRecords.size());
 
        Date now = new Date();
        int count = 0;
        for (SysVisitorRecord record : overdueRecords) {
            try {
                revokeAccess(record);
                record.setStatus("OVERDUE_AUTO_SIGNED_OUT");
                record.setSignTime(now);
                record.setRemark("系统自动签离(启动时检查)");
                record.setUpdateTime(now);
                this.updateById(record);
 
                // 删除 Redis Key
                redisTemplate.delete(REDIS_KEY_PREFIX + record.getRecordId());
                count++;
            } catch (Exception e) {
                log.error("启动检查处理记录失败,ID:{}", record.getRecordId(), e);
            }
        }
 
        log.info("启动检查完成,处理 {} 条超期记录", count);
        return count;
    }
}