package com.oying.modules.quartz.service.impl;

import cn.hutool.core.util.IdUtil;
import cn.hutool.core.util.StrUtil;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.oying.modules.quartz.domain.QuartzJob;
import com.oying.modules.quartz.domain.QuartzLog;
import com.oying.modules.quartz.utils.QuartzManage;
import com.oying.utils.*;
import lombok.RequiredArgsConstructor;
import com.oying.exception.BadRequestException;
import com.oying.modules.quartz.mapper.QuartzJobMapper;
import com.oying.modules.quartz.mapper.QuartzLogMapper;
import com.oying.modules.quartz.service.QuartzJobService;
import com.oying.modules.quartz.domain.dto.QuartzJobQueryCriteria;
import org.quartz.CronExpression;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.*;

/**
 * @author Z
 * @date 2019-01-07
 */
@RequiredArgsConstructor
@Service(value = "quartzJobService")
public class QuartzJobServiceImpl extends ServiceImpl<QuartzJobMapper, QuartzJob> implements QuartzJobService {

    private final QuartzJobMapper quartzJobMapper;
    private final QuartzLogMapper quartzLogMapper;
    private final QuartzManage quartzManage;
    private final RedisUtils redisUtils;

    @Override
    public PageResult<QuartzJob> queryAll(QuartzJobQueryCriteria criteria, Page<Object> page){
        return PageUtil.toPage(quartzJobMapper.findAll(criteria, page));
    }

    @Override
    public PageResult<QuartzLog> queryAllLog(QuartzJobQueryCriteria criteria, Page<Object> page){
        return PageUtil.toPage(quartzLogMapper.findAll(criteria, page));
    }

    @Override
    public List<QuartzJob> queryAll(QuartzJobQueryCriteria criteria) {
        return quartzJobMapper.findAll(criteria);
    }

    @Override
    public List<QuartzLog> queryAllLog(QuartzJobQueryCriteria criteria) {
        return quartzLogMapper.findAll(criteria);
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public void create(QuartzJob resources) {
        if (!CronExpression.isValidExpression(resources.getCronExpression())){
            throw new BadRequestException("cron表达式格式错误");
        }
        save(resources);
        quartzManage.addJob(resources);
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public void update(QuartzJob resources) {
        if (!CronExpression.isValidExpression(resources.getCronExpression())){
            throw new BadRequestException("cron表达式格式错误");
        }
        if(StringUtils.isNotBlank(resources.getSubTask())){
            List<String> tasks = Arrays.asList(resources.getSubTask().split("[,，]"));
            if (tasks.contains(resources.getId().toString())) {
                throw new BadRequestException("子任务中不能添加当前任务ID");
            }
        }
        saveOrUpdate(resources);
        quartzManage.updateJobCron(resources);
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public void updateIsPause(QuartzJob quartzJob) {
        // 置换暂停状态
        if (quartzJob.getIsPause()) {
            quartzManage.resumeJob(quartzJob);
            quartzJob.setIsPause(false);
        } else {
            quartzManage.pauseJob(quartzJob);
            quartzJob.setIsPause(true);
        }
        saveOrUpdate(quartzJob);
    }

    @Override
    public void execution(QuartzJob quartzJob) {
        quartzManage.runJobNow(quartzJob);
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public void delete(Set<Long> ids) {
        for (Long id : ids) {
            QuartzJob quartzJob = getById(id);
            quartzManage.deleteJob(quartzJob);
            removeById(quartzJob);
        }
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public void executionSubJob(String[] tasks) throws InterruptedException {
        for (String id : tasks) {
            if (StrUtil.isBlank(id)) {
                // 如果是手动清除子任务id，会出现id为空字符串的问题
                continue;
            }
            QuartzJob quartzJob = getById(Long.parseLong(id));
            // 执行任务
            String uuid = IdUtil.simpleUUID();
            quartzJob.setUuid(uuid);
            // 执行任务
            execution(quartzJob);
            // 获取执行状态，如果执行失败则停止后面的子任务执行
            Boolean result = redisUtils.get(uuid, Boolean.class);
            while (result == null) {
                // 休眠5秒，再次获取子任务执行情况
                Thread.sleep(5000);
                result = redisUtils.get(uuid, Boolean.class);
            }
            if(!result){
                redisUtils.del(uuid);
                break;
            }
        }
    }

    @Override
    public void download(List<QuartzJob> quartzJobs, HttpServletResponse response) throws IOException {
        List<Map<String, Object>> list = new ArrayList<>();
        for (QuartzJob quartzJob : quartzJobs) {
            Map<String,Object> map = new LinkedHashMap<>();
            map.put("任务名称", quartzJob.getJobName());
            map.put("Bean名称", quartzJob.getBeanName());
            map.put("执行方法", quartzJob.getMethodName());
            map.put("参数", quartzJob.getParams());
            map.put("表达式", quartzJob.getCronExpression());
            map.put("状态", quartzJob.getIsPause() ? "暂停中" : "运行中");
            map.put("描述", quartzJob.getDescription());
            map.put("创建日期", quartzJob.getCreateTime());
            list.add(map);
        }
        FileUtil.downloadExcel(list, response);
    }

    @Override
    public void downloadLog(List<QuartzLog> queryAllLog, HttpServletResponse response) throws IOException {
        List<Map<String, Object>> list = new ArrayList<>();
        for (QuartzLog quartzLog : queryAllLog) {
            Map<String,Object> map = new LinkedHashMap<>();
            map.put("任务名称", quartzLog.getJobName());
            map.put("Bean名称", quartzLog.getBeanName());
            map.put("执行方法", quartzLog.getMethodName());
            map.put("参数", quartzLog.getParams());
            map.put("表达式", quartzLog.getCronExpression());
            map.put("异常详情", quartzLog.getExceptionDetail());
            map.put("耗时/毫秒", quartzLog.getTime());
            map.put("状态", quartzLog.getIsSuccess() ? "成功" : "失败");
            map.put("创建日期", quartzLog.getCreateTime());
            list.add(map);
        }
        FileUtil.downloadExcel(list, response);
    }
}