package com.monkeylessey.job.utis;

import com.monkeylessey.enums.general.JobStatusEnum;
import com.monkeylessey.job.domain.entity.SysJob;
import org.quartz.*;

/**
 * @author 29443
 * @date 2022/6/9
 */
public class JobUtil {

    /**
     * 创建定时任务
     *
     * @param scheduler
     * @param job
     * @throws ClassNotFoundException
     * @throws SchedulerException
     */
    public static void createJob(Scheduler scheduler, SysJob job) throws ClassNotFoundException, SchedulerException {
        // 获取jib类的Class
        Class<? extends Job> jobClass = (Class<? extends Job>) Class.forName(job.getJobClass());

        // 创建任务实例
        JobDetail jobDetail = JobBuilder.newJob(jobClass)
                .withIdentity(job.getJobKey(), job.getJobGroup())
                .build();
        // 创建触发器
        CronTrigger trigger = TriggerBuilder.newTrigger()
                .forJob(job.getJobKey(), job.getJobGroup())
                .withIdentity(job.getJobKey(), job.getJobGroup())
                .withSchedule(CronScheduleBuilder.cronSchedule(job.getCronExpress()))
                .build();

        // 如果任务存在，删除再添加
        checkAndDeleteJob(scheduler, job);
        scheduler.scheduleJob(jobDetail, trigger);
        // 判断任务是否暂停状态
        if (JobStatusEnum.OFF.equals(job.getJobStatus())) {
            scheduler.pauseJob(new JobKey(job.getJobKey(), job.getJobGroup()));
        }
    }

    /**
     * 执行一次定时任务
     *
     * @param job
     */
    public static void executeOnce(Scheduler scheduler, SysJob job) throws SchedulerException {
        scheduler.triggerJob(new JobKey(job.getJobKey(), job.getJobGroup()));
    }

    /**
     * 暂停定时任务
     *
     * @param scheduler
     * @param job
     */
    public static void stopJob(Scheduler scheduler, SysJob job) throws SchedulerException {
        scheduler.pauseJob(new JobKey(job.getJobKey(), job.getJobGroup()));
    }

    /**
     * 启动定时任务
     *
     * @param scheduler
     * @param job
     */
    public static void startJob(Scheduler scheduler, SysJob job) throws SchedulerException {
        scheduler.resumeJob(new JobKey(job.getJobKey(), job.getJobGroup()));
    }

    /**
     * 检查任务是否存在，存在则删除该任务
     *
     * @param scheduler
     * @param job
     * @throws SchedulerException
     */
    public static void checkAndDeleteJob(Scheduler scheduler, SysJob job) throws SchedulerException {
        if (scheduler.checkExists(new JobKey(job.getJobKey(), job.getJobGroup()))) {
            deleteJob(scheduler, job);
        }
    }

    /**
     * 删除定时任务
     *
     * @param scheduler
     * @param job
     * @throws SchedulerException
     */
    public static void deleteJob(Scheduler scheduler, SysJob job) throws SchedulerException {
        scheduler.deleteJob(new JobKey(job.getJobKey(), job.getJobGroup()));
    }
}