package io.dataease.job.sechedule;

import io.dataease.commons.utils.LogUtil;
import org.quartz.*;
import org.quartz.impl.triggers.CronTriggerImpl;
import org.springframework.stereotype.Component;

import javax.annotation.Resource;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.*;

@Component
public class ScheduleManager {

    @Resource
    private Scheduler scheduler;

    /**
     * 添加 simpleJob
     *
     * @param jobKey
     * @param triggerKey
     * @param cls
     * @param repeatIntervalTime
     * @param jobDataMap
     * @throws SchedulerException
     */
    public void addSimpleJob(JobKey jobKey, TriggerKey triggerKey, Class<? extends Job> cls, int repeatIntervalTime,
                             JobDataMap jobDataMap) throws SchedulerException {

        JobBuilder jobBuilder = JobBuilder.newJob(cls).withIdentity(jobKey);

        if (jobDataMap != null) {
            jobBuilder.usingJobData(jobDataMap);
        }

        JobDetail jd = jobBuilder.build();

        SimpleTrigger trigger = TriggerBuilder.newTrigger().withIdentity(triggerKey)
                .withSchedule(
                        SimpleScheduleBuilder.simpleSchedule().withIntervalInHours(repeatIntervalTime).repeatForever())
                .startNow().build();

        scheduler.scheduleJob(jd, trigger);
    }

    public void addSimpleJob(JobKey jobKey, TriggerKey triggerKey, Class<? extends Job> cls, int repeatIntervalTime) throws SchedulerException {
        addSimpleJob(jobKey, triggerKey, cls, repeatIntervalTime);
    }

    /**
     * 添加 cronJob
     *
     * @param jobKey
     * @param triggerKey
     * @param jobClass
     * @param cron
     * @param jobDataMap
     */
    public void addCronJob(JobKey jobKey, TriggerKey triggerKey, Class jobClass, String cron, Date startTime, Date endTime, JobDataMap jobDataMap) {
        try {

            LogUtil.info("addCronJob: " + triggerKey.getName() + "," + triggerKey.getGroup());

            JobBuilder jobBuilder = JobBuilder.newJob(jobClass).withIdentity(jobKey);
            if (jobDataMap != null) {
                jobBuilder.usingJobData(jobDataMap);
            }
            JobDetail jobDetail = jobBuilder.build();

            TriggerBuilder<Trigger> triggerBuilder = TriggerBuilder.newTrigger();

            triggerBuilder.withIdentity(triggerKey);

            Date nTimeByCron = getNTimeByCron(cron, startTime);
            if (startTime.before(new Date())) {
                triggerBuilder.startAt(nTimeByCron);
            }

            if (endTime != null) {
                if (endTime.before(nTimeByCron)) {
                    triggerBuilder.endAt(nTimeByCron);
                } else {
                    triggerBuilder.endAt(endTime);
                }
            }

            triggerBuilder.withSchedule(CronScheduleBuilder.cronSchedule(cron));

            CronTrigger trigger = (CronTrigger) triggerBuilder.build();

            scheduler.scheduleJob(jobDetail, trigger);

        } catch (Exception e) {
            LogUtil.error(e.getMessage(), e);
            throw new RuntimeException(e);
        }
    }

    public void addCronJob(JobKey jobKey, TriggerKey triggerKey, Class jobClass, String cron, Date startTime, Date endTime) {
        addCronJob(jobKey, triggerKey, jobClass, cron, startTime, endTime, null);
    }

    public void addSingleJob(JobKey jobKey, TriggerKey triggerKey, Class jobClass, Date date, JobDataMap jobDataMap) {
        try {
            LogUtil.info("addSingleJob: " + triggerKey.getName() + "," + triggerKey.getGroup());

            JobBuilder jobBuilder = JobBuilder.newJob(jobClass).withIdentity(jobKey);
            if (jobDataMap != null) {
                jobBuilder.usingJobData(jobDataMap);
            }
            JobDetail jobDetail = jobBuilder.build();

            TriggerBuilder<Trigger> triggerBuilder = TriggerBuilder.newTrigger();

            triggerBuilder.withIdentity(triggerKey);

            triggerBuilder.startAt(date);

            Trigger trigger = triggerBuilder.build();

            scheduler.scheduleJob(jobDetail, trigger);

        } catch (Exception e) {
            LogUtil.error(e.getMessage(), e);
            throw new RuntimeException(e);
        }
    }

    public void addSingleJob(JobKey jobKey, TriggerKey triggerKey, Class jobClass, Date date) {
        addSingleJob(jobKey, triggerKey, jobClass, date, null);
    }

    /**
     * 修改 cronTrigger
     *
     * @param triggerKey
     * @param cron
     * @throws SchedulerException
     */
    public void modifyCronJobTime(TriggerKey triggerKey, String cron, Date startTime, Date endTime) throws SchedulerException {

        LogUtil.info("modifyCronJobTime: " + triggerKey.getName() + "," + triggerKey.getGroup());

        try {
            CronTrigger trigger = (CronTrigger) scheduler.getTrigger(triggerKey);

            if (trigger == null) {
                return;
            }


            /** 方式一 ：调用 rescheduleJob 开始 */
            TriggerBuilder<Trigger> triggerBuilder = TriggerBuilder.newTrigger();// 触发器

            triggerBuilder.withIdentity(triggerKey);// 触发器名,触发器组

            Date nTimeByCron = getNTimeByCron(cron, startTime);
            if (startTime.before(new Date())) {
                triggerBuilder.startAt(nTimeByCron);
            }

            if (endTime != null) {
                if (endTime.before(nTimeByCron)) {
                    triggerBuilder.endAt(nTimeByCron);
                } else {
                    triggerBuilder.endAt(endTime);
                }
            }

            triggerBuilder.withSchedule(CronScheduleBuilder.cronSchedule(cron));// 触发器时间设定

            trigger = (CronTrigger) triggerBuilder.build();// 创建Trigger对象

            scheduler.rescheduleJob(triggerKey, trigger);// 修改一个任务的触发时间
            /** 方式一 ：调用 rescheduleJob 结束 */

            /** 方式二：先删除，然后在创建一个新的Job */
            // JobDetail jobDetail = sched.getJobDetail(JobKey.jobKey(jobName, jobGroupName));
            // Class<? extends Job> jobClass = jobDetail.getJobClass();
            // removeJob(jobName, jobGroupName, triggerName, triggerGroupName);
            // addJob(jobName, jobGroupName, triggerName, triggerGroupName, jobClass, cron);
            /** 方式二 ：先删除，然后在创建一个新的Job */
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }

    /**
     * 修改simpleTrigger触发器的触发时间
     *
     * @param triggerKey
     * @param repeatIntervalTime
     * @throws SchedulerException
     */
    public void modifySimpleJobTime(TriggerKey triggerKey, int repeatIntervalTime) throws SchedulerException {

        try {

            LogUtil.info("modifySimpleJobTime: " + triggerKey.getName() + "," + triggerKey.getGroup());

            SimpleTrigger trigger = (SimpleTrigger) scheduler.getTrigger(triggerKey);

            if (trigger == null) {
                return;
            }

            long oldTime = trigger.getRepeatInterval();

            if (oldTime != repeatIntervalTime) {

                /** 方式一 ：调用 rescheduleJob 开始 */
                TriggerBuilder<Trigger> triggerBuilder = TriggerBuilder.newTrigger();// 触发器builder

                triggerBuilder.withIdentity(triggerKey);// 触发器名,触发器组

                triggerBuilder.withSchedule(SimpleScheduleBuilder.repeatHourlyForever(repeatIntervalTime));// 更新触发器的重复间隔时间

                triggerBuilder.startNow();// 立即执行

                trigger = (SimpleTrigger) triggerBuilder.build();// 创建Trigger对象

                scheduler.rescheduleJob(triggerKey, trigger);// 修改一个任务的触发时间

                /** 方式一 ：调用 rescheduleJob 结束 */

                /** 方式二：先删除，然后在创建一个新的Job */
                // JobDetail jobDetail = sched.getJobDetail(JobKey.jobKey(jobName, jobGroupName));
                // Class<? extends Job> jobClass = jobDetail.getJobClass();
                // removeJob(jobName, jobGroupName, triggerName, triggerGroupName);
                // addJob(jobName, jobGroupName, triggerName, triggerGroupName, jobClass, cron);
                /** 方式二 ：先删除，然后在创建一个新的Job */
            }

        } catch (Exception e) {
            LogUtil.error(e.getMessage(), e);
            throw new RuntimeException(e);
        }
    }

    public void modifySingleJobTime(TriggerKey triggerKey, Date date) throws SchedulerException {

        try {

            LogUtil.info("modifySingleJobTime: " + triggerKey.getName() + "," + triggerKey.getGroup());

            Trigger trigger = scheduler.getTrigger(triggerKey);

            if (trigger == null) {
                return;
            }

            Date oldTime = trigger.getStartTime();

            if (oldTime.getTime() != date.getTime()) {

                TriggerBuilder<Trigger> triggerBuilder = TriggerBuilder.newTrigger();// 触发器builder

                triggerBuilder.withIdentity(triggerKey);// 触发器名,触发器组

                triggerBuilder.startAt(date);

                trigger = triggerBuilder.build();// 创建Trigger对象

                scheduler.rescheduleJob(triggerKey, trigger);// 修改一个任务的触发时间
            }
        } catch (Exception e) {
            LogUtil.error(e.getMessage(), e);
            throw new RuntimeException(e);
        }
    }

    /**
     * @param jobKey
     * @param triggerKey
     * @Title:
     * @Description: 根据job和trigger删除任务
     */
    public void removeJob(JobKey jobKey, TriggerKey triggerKey) {

        try {

            LogUtil.info("RemoveJob: " + jobKey.getName() + "," + jobKey.getGroup());

            scheduler.pauseTrigger(triggerKey);

            scheduler.unscheduleJob(triggerKey);

            scheduler.deleteJob(jobKey);

        } catch (Exception e) {
            LogUtil.error(e.getMessage(), e);
            throw new RuntimeException(e);
        }
    }


    public static void startJobs(Scheduler sched) {
        try {
            sched.start();
        } catch (Exception e) {
            LogUtil.error(e.getMessage(), e);
            throw new RuntimeException(e);
        }
    }


    public void shutdownJobs(Scheduler sched) {
        try {
            if (!sched.isShutdown()) {
                sched.shutdown();
            }
        } catch (Exception e) {
            LogUtil.error(e.getMessage(), e);
            throw new RuntimeException(e);
        }
    }

    /**
     * 新增或者修改 simpleJob
     *
     * @param jobKey
     * @param triggerKey
     * @param clz
     * @param intervalTime
     * @param jobDataMap
     * @throws SchedulerException
     */
    public void addOrUpdateSimpleJob(JobKey jobKey, TriggerKey triggerKey, Class clz,
                                     int intervalTime, JobDataMap jobDataMap) throws SchedulerException {

        if (scheduler.checkExists(triggerKey)) {
            modifySimpleJobTime(triggerKey, intervalTime);
        } else {
            addSimpleJob(jobKey, triggerKey, clz, intervalTime, jobDataMap);
        }

    }

    public void addOrUpdateSingleJob(JobKey jobKey, TriggerKey triggerKey, Class clz,
                                     Date date, JobDataMap jobDataMap) throws SchedulerException {
        if (scheduler.checkExists(triggerKey)) {
            modifySingleJobTime(triggerKey, date);
        } else {
            addSingleJob(jobKey, triggerKey, clz, date, jobDataMap);
        }

    }

    public void addOrUpdateSingleJob(JobKey jobKey, TriggerKey triggerKey, Class clz,
                                     Date date) throws SchedulerException {
        addOrUpdateSingleJob(jobKey, triggerKey, clz, date, null);
    }

    public void addOrUpdateSimpleJob(JobKey jobKey, TriggerKey triggerKey, Class clz, int intervalTime) throws SchedulerException {
        addOrUpdateSimpleJob(jobKey, triggerKey, clz, intervalTime, null);
    }


    /**
     * 添加或修改 cronJob
     *
     * @param jobKey
     * @param triggerKey
     * @param jobClass
     * @param cron
     * @param jobDataMap
     * @throws SchedulerException
     */
    public void addOrUpdateCronJob(JobKey jobKey, TriggerKey triggerKey, Class jobClass, String cron, Date startTime, Date endTime, JobDataMap jobDataMap) throws SchedulerException {

        LogUtil.info("AddOrUpdateCronJob: " + jobKey.getName() + "," + triggerKey.getGroup());

        if (scheduler.checkExists(triggerKey)) {
            modifyCronJobTime(triggerKey, cron, startTime, endTime);
        } else {
            addCronJob(jobKey, triggerKey, jobClass, cron, startTime, endTime, jobDataMap);
        }
    }

    public void addOrUpdateCronJob(JobKey jobKey, TriggerKey triggerKey, Class jobClass, String cron, Date startTime, Date endTime) throws SchedulerException {
        addOrUpdateCronJob(jobKey, triggerKey, jobClass, cron, startTime, endTime, null);
    }

    public JobDataMap getDefaultJobDataMap(String resourceId, String expression, String taskId, String updateType) {
        JobDataMap jobDataMap = new JobDataMap();
        jobDataMap.put("datasetTableId", resourceId);
        jobDataMap.put("taskId", taskId);
        jobDataMap.put("expression", expression);
        jobDataMap.put("updateType", updateType);
        return jobDataMap;
    }

    public Object getCurrentlyExecutingJobs() {
        Map<String, String> returnMap = new HashMap<>();
        try {
            List<JobExecutionContext> currentJobs = scheduler.getCurrentlyExecutingJobs();
            for (JobExecutionContext jobCtx : currentJobs) {
                String jobName = jobCtx.getJobDetail().getKey().getName();
                String groupName = jobCtx.getJobDetail().getJobClass().getName();

                returnMap.put("jobName", jobName);
                returnMap.put("groupName", groupName);
            }
        } catch (Exception e) {
            e.printStackTrace();
        }

        return returnMap;
    }

//    public static Date getNTimeByCron(String cron) {
//        try {
//            CronTriggerImpl cronTriggerImpl = new CronTriggerImpl();
//            cronTriggerImpl.setCronExpression(cron);
//            Calendar calendar = Calendar.getInstance();
//            Date now = calendar.getTime();
////            calendar.add(java.util.Calendar.YEAR, 1);
//            calendar.add(Calendar.MONTH, 2);
//
//            List<Date> dates = TriggerUtils.computeFireTimesBetween(cronTriggerImpl, null, now, calendar.getTime());
//            SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
//            String nextTime = dateFormat.format(dates.get(0));
//            Date date = dateFormat.parse(nextTime);
//            return date;
//        } catch (Exception e) {
//            throw new RuntimeException(e);
//        }
//    }

    public static CronTrigger getCronTrigger(String cron) {
        if (!CronExpression.isValidExpression(cron)) {
            throw new RuntimeException("cron :" + cron + " error");
        }
        return TriggerBuilder.newTrigger().withIdentity("Calculate Date").withSchedule(CronScheduleBuilder.cronSchedule(cron)).build();

    }

    public static Date getNTimeByCron(String cron, Date start) {
        CronTrigger trigger = getCronTrigger(cron);
        if (start == null) {
            start = trigger.getStartTime();
        }
        return trigger.getFireTimeAfter(start);
    }
}
