package com.ycl.utils;

import com.baomidou.mybatisplus.extension.conditions.query.LambdaQueryChainWrapper;
import com.ycl.platform.domain.entity.DeviceInfo;
import com.ycl.platform.domain.entity.TMonitor;
import com.ycl.platform.domain.result.SYS.TMonitorResult;
import com.ycl.platform.domain.vo.CheckResult;
import com.ycl.platform.domain.vo.CheckUtil;
import com.ycl.platform.mapper.DeviceInfoMapper;
import com.ycl.platform.mapper.TMonitorMapper;
import com.ycl.platform.service.WorkOrderService;
import com.ycl.utils.http.SelfHttpUtil;
import com.ycl.utils.uuid.IdUtils;
import constant.RedisConstant;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.http.*;
import org.springframework.lang.Nullable;
import org.springframework.stereotype.Component;
import org.springframework.util.CollectionUtils;
import org.springframework.util.MultiValueMap;
import org.springframework.web.client.RestTemplate;

import java.io.IOException;
import java.net.InetAddress;
import java.net.UnknownHostException;
import java.text.SimpleDateFormat;
import java.util.*;

/**
 * @author xp
 * @date 2022/11/16
 */
@Component
@RequiredArgsConstructor
@Slf4j
public class CheckPointUtil {

    private final RedisTemplate redisTemplate;
    private final SelfHttpUtil selfHttpUtil;
    private final DeviceInfoMapper deviceInfoMapper;
    private final WorkOrderService workOrderService;
    private final TMonitorMapper monitorMapper;

    /**
     * 监测点位在线工具类
     *
     * @return
     */
    public TMonitorResult check(TMonitorResult monitor,Integer times) {
        // 先检测能否访问该ip的网页
        ResponseEntity<String> res = null;
        String prefix = "http://";
        if ("127.0.0.1".equals(monitor.getIp())) {
            monitor.setPingOnline(Boolean.FALSE);
            log.error("ip有误"+monitor.getIp());
            return monitor;
        }
        try {
            res = selfHttpUtil.get(prefix + monitor.getIp(), null, null);
            monitor.setPingOnline(Objects.nonNull(res) && HttpStatus.OK == res.getStatusCode());
        } catch (Exception e) {
            monitor.setPingOnline(Boolean.FALSE);
        }
        // 如果http得到的不在线，那么再ping一下
        boolean reachable = false;
        Integer checkTimes = 1;
        Integer offLineTimes = 0;
        Integer continueOffTimes = 0;
        List<String> offTimeList = new ArrayList<>();
        // 从Redis获取数据时进行类型安全的转换
        Map<String, Object> map = null;
        Object mapObj = redisTemplate.opsForHash().get(RedisConstant.ONLINE_KEY, monitor.getNo());
        if (mapObj != null) {
            map = (Map<String, Object>) mapObj;
            checkTimes = (Integer) map.get("checkTimes") + 1;
            offLineTimes = (Integer) map.get("offLineTimes");
            continueOffTimes = (Integer) map.get("continueOffTimes");
            Object offTimeListObj = map.get("offTimeList");
            if (offTimeListObj instanceof List) {
                offTimeList = new ArrayList<>((List<String>) offTimeListObj);
            }
        } else {
            map = new HashMap<>();
        }
        if (!monitor.getPingOnline()) {
            reachable = checkPing(monitor, reachable);
            monitor.setPingOnline(reachable);
        }
        if (!monitor.getPingOnline()) {
            offLineTimes++;
            continueOffTimes++;
            //记录离线时间
            Date now = new Date();
            SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
            offTimeList.add(dateFormat.format(now));
            monitor.setOffLineTimeStr(offTimeList);
            //到达产生工单的阈值次数
            if (continueOffTimes>=times) {
                //产生了工单才会存储离线时间,存储最近一次产生工单的这几个离线时间点
                monitor.setCreateWorkOrder(Boolean.TRUE);
                //产生了一次工单则清除
                continueOffTimes = 0;
            }
        }else {
            //如果在线了，清空连续离线次数，清空离线时间
            continueOffTimes = 0;
        }
        map.put("checkTimes", checkTimes);
        map.put("offLineTimes", offLineTimes);
        map.put("continueOffTimes", continueOffTimes);
        map.put("offTimeList", offTimeList);
        redisTemplate.opsForHash().put(RedisConstant.ONLINE_KEY, monitor.getNo(), map);
        monitor.setCheckCount(checkTimes);
        monitor.setOffLineCount(offLineTimes);
        return monitor;
    }

    private boolean checkPing(TMonitorResult monitor, boolean reachable) {
        try {
            int[] sleepTimes = {5000, 15000, 30000};
            for (int sleepTime : sleepTimes) {
                reachable = InetAddress.getByName(monitor.getIp()).isReachable(5000);
                if (reachable) {
                    break;
                }
                Thread.sleep(sleepTime);
            }
        } catch (Exception e) {
            log.error("Ping异常",e);
        }
        return reachable;
    }


    /**
     * 监测点位在线
     *
     * @return
     */
    public CheckResult webCheck(CheckUtil checkUtil) {
        CheckResult result = new CheckResult();
        List<TMonitor> ips = new LambdaQueryChainWrapper<>(monitorMapper)
                .eq(TMonitor::getSerialNumber, checkUtil.getSerialNumber())
                .list();
        if (ips.size() < 1) {
            result.setStatus("国标码未查找到IP");
            return result;
        }
        checkUtil.setIp(ips.get(0).getIp());

        log.info("监测IP：" + checkUtil.getIp());
        String prefix = "http://";
        if ("127.0.0.1".equals(checkUtil.getIp())) {
            result.setStatus("ip异常");
            return result;
        }
        boolean webReachable = false;
        try {
            ResponseEntity<String> res = selfHttpUtil.get(prefix + checkUtil.getIp(), null, null);
            webReachable = Objects.nonNull(res) && HttpStatus.OK == res.getStatusCode();
        } catch (Exception e) {
            log.info("检测web异常" + e.getMessage());
            webReachable = Boolean.FALSE;
        }
        // ping
        boolean pingReachable = false;
        try {
            InetAddress inet = InetAddress.getByName(checkUtil.getIp());
            pingReachable = inet.isReachable(5000); // 5000毫秒超时时间
        } catch (UnknownHostException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
        String imgUrl = "";
        if (pingReachable || webReachable) {
            // 查出国标设备，就一条数据
            List<DeviceInfo> gbDevices = new LambdaQueryChainWrapper<>(deviceInfoMapper)
                    .orderByDesc(DeviceInfo::getUpdateTime)
                    .last("limit 1")
                    .list();
            if (!CollectionUtils.isEmpty(gbDevices)) {
                try {
                    imgUrl = workOrderService.getFrameImgByDevice(gbDevices.get(0).getDeviceId(), checkUtil.getSerialNumber(), IdUtils.workOrderNO(new Date(), "99999"));
                    result.setImg(imgUrl);
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        }
        String status = "";
        if (!webReachable) {
            status += "设备web访问失败；";
        } else if (webReachable) {
            status += "设备web访问正常；";
        }

        if (!pingReachable) {
            status += "设备ip未ping通；";
        } else if (pingReachable) {
            status += "设备ipPing正常；";
        }

        if (StringUtils.isEmpty(imgUrl)) {
            status += "未获取到图片";
        } else {
            status += "获取图片正常";
        }
        result.setStatus(status);
        return result;
    }

    /**
     * ping
     *
     * @return
     */
    public CheckResult ping(CheckUtil checkUtil) {
        CheckResult result = new CheckResult();

        log.info("监测IP：" + checkUtil.getIp());
        String prefix = "http://";
        if ("127.0.0.1".equals(checkUtil.getIp())) {
            result.setStatus("ip异常");
            return result;
        }
        // ping
        boolean pingReachable = false;
        try {
            InetAddress inet = InetAddress.getByName(checkUtil.getIp());
            pingReachable = inet.isReachable(5000); // 5000毫秒超时时间
        } catch (UnknownHostException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
        String status = "";
        if (!pingReachable) {
            status += "ip未ping通；";
        } else {
            status += "成功";
        }
        result.setStatus(status);
        return result;
    }
}