package com.xxl.job.admin.service.impl;

import com.xxl.job.admin.core.model.XxlJobGroup;
import com.xxl.job.admin.core.model.XxlJobInfo;
import com.xxl.job.admin.core.cron.CronExpression;
import com.xxl.job.admin.core.route.ExecutorRouteStrategyEnum;
import com.xxl.job.admin.core.thread.JobScheduleHelper;
import com.xxl.job.admin.core.util.I18nUtil;
import com.xxl.job.admin.dao.XxlJobGroupDao;
import com.xxl.job.admin.dao.XxlJobInfoDao;
import com.xxl.job.admin.dao.XxlJobLogDao;
import com.xxl.job.admin.dao.XxlJobLogGlueDao;
import com.xxl.job.admin.service.XxlJobService;
import com.xxl.job.core.biz.model.ReturnT;
import com.xxl.job.core.enums.ExecutorBlockStrategyEnum;
import com.xxl.job.core.glue.GlueTypeEnum;
import com.xxl.job.core.util.DateUtil;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Service;

import javax.annotation.Resource;
import java.text.MessageFormat;
import java.text.ParseException;
import java.util.*;

/**
 * core job action for xxl-job
 * @author xuxueli 2016-5-28 15:30:33
 */
@Service
public class XxlJobServiceImpl implements XxlJobService {
	private static Logger logger = LoggerFactory.getLogger(XxlJobServiceImpl.class);

	@Resource
	private XxlJobGroupDao xxlJobGroupDao;
	@Resource
	private XxlJobInfoDao xxlJobInfoDao;
	@Resource
	public XxlJobLogDao xxlJobLogDao;
	@Resource
	private XxlJobLogGlueDao xxlJobLogGlueDao;
	
	@Override
	public Map<String, Object> pageList(int start, int length, int jobGroup, int triggerStatus, String jobDesc, String executorHandler, String author) {

		// page list
		List<XxlJobInfo> list = xxlJobInfoDao.pageList(start, length, jobGroup, triggerStatus, jobDesc, executorHandler, author);
		int list_count = xxlJobInfoDao.pageListCount(start, length, jobGroup, triggerStatus, jobDesc, executorHandler, author);
		
		// package result
		Map<String, Object> maps = new HashMap<String, Object>();
	    maps.put("recordsTotal", list_count);		// 总记录数
	    maps.put("recordsFiltered", list_count);	// 过滤后的总记录数
	    maps.put("data", list);  					// 分页列表
		return maps;
	}

	@Override
	public ReturnT<String> add(XxlJobInfo jobInfo) {
		// valid
		XxlJobGroup group = xxlJobGroupDao.load(jobInfo.getJobGroup());
		if (group == null) {
			return new ReturnT<String>(ReturnT.FAIL_CODE, (I18nUtil.getString("system_please_choose")+I18nUtil.getString("jobinfo_field_jobgroup")) );
		}
		if (!CronExpression.isValidExpression(jobInfo.getJobCron())) {
			return new ReturnT<String>(ReturnT.FAIL_CODE, I18nUtil.getString("jobinfo_field_cron_unvalid") );
		}
		if (jobInfo.getJobDesc()==null || jobInfo.getJobDesc().trim().length()==0) {
			return new ReturnT<String>(ReturnT.FAIL_CODE, (I18nUtil.getString("system_please_input")+I18nUtil.getString("jobinfo_field_jobdesc")) );
		}
		if (jobInfo.getAuthor()==null || jobInfo.getAuthor().trim().length()==0) {
			return new ReturnT<String>(ReturnT.FAIL_CODE, (I18nUtil.getString("system_please_input")+I18nUtil.getString("jobinfo_field_author")) );
		}
		if (ExecutorRouteStrategyEnum.match(jobInfo.getExecutorRouteStrategy(), null) == null) {
			return new ReturnT<String>(ReturnT.FAIL_CODE, (I18nUtil.getString("jobinfo_field_executorRouteStrategy")+I18nUtil.getString("system_unvalid")) );
		}
		if (ExecutorBlockStrategyEnum.match(jobInfo.getExecutorBlockStrategy(), null) == null) {
			return new ReturnT<String>(ReturnT.FAIL_CODE, (I18nUtil.getString("jobinfo_field_executorBlockStrategy")+I18nUtil.getString("system_unvalid")) );
		}
		if (GlueTypeEnum.match(jobInfo.getGlueType()) == null) {
			return new ReturnT<String>(ReturnT.FAIL_CODE, (I18nUtil.getString("jobinfo_field_gluetype")+I18nUtil.getString("system_unvalid")) );
		}
		if (GlueTypeEnum.BEAN==GlueTypeEnum.match(jobInfo.getGlueType()) && (jobInfo.getExecutorHandler()==null || jobInfo.getExecutorHandler().trim().length()==0) ) {
			return new ReturnT<String>(ReturnT.FAIL_CODE, (I18nUtil.getString("system_please_input")+"JobHandler") );
		}

		// fix "\r" in shell
		if (GlueTypeEnum.GLUE_SHELL==GlueTypeEnum.match(jobInfo.getGlueType()) && jobInfo.getGlueSource()!=null) {
			jobInfo.setGlueSource(jobInfo.getGlueSource().replaceAll("\r", ""));
		}

		// ChildJobId valid
		if (jobInfo.getChildJobId()!=null && jobInfo.getChildJobId().trim().length()>0) {
			String[] childJobIds = jobInfo.getChildJobId().split(",");
			for (String childJobIdItem: childJobIds) {
				if (childJobIdItem!=null && childJobIdItem.trim().length()>0 && isNumeric(childJobIdItem)) {
					XxlJobInfo childJobInfo = xxlJobInfoDao.loadById(Integer.valueOf(childJobIdItem));
					if (childJobInfo==null) {
						return new ReturnT<String>(ReturnT.FAIL_CODE,
								MessageFormat.format((I18nUtil.getString("jobinfo_field_childJobId")+"({0})"+I18nUtil.getString("system_not_found")), childJobIdItem));
					}
				} else {
					return new ReturnT<String>(ReturnT.FAIL_CODE,
							MessageFormat.format((I18nUtil.getString("jobinfo_field_childJobId")+"({0})"+I18nUtil.getString("system_unvalid")), childJobIdItem));
				}
			}

			String temp = "";	// join ,
			for (String item:childJobIds) {
				temp += item + ",";
			}
			temp = temp.substring(0, temp.length()-1);

			jobInfo.setChildJobId(temp);
		}

		// add in db
		xxlJobInfoDao.save(jobInfo);
		if (jobInfo.getId() < 1) {
			return new ReturnT<String>(ReturnT.FAIL_CODE, (I18nUtil.getString("jobinfo_field_add")+I18nUtil.getString("system_fail")) );
		}

		return new ReturnT<String>(String.valueOf(jobInfo.getId()));
	}

	private boolean isNumeric(String str){
		try {
			int result = Integer.valueOf(str);
			return true;
		} catch (NumberFormatException e) {
			return false;
		}
	}

	@Override
	public ReturnT<String> update(XxlJobInfo jobInfo) {

		// valid
		if (!CronExpression.isValidExpression(jobInfo.getJobCron())) {
			return new ReturnT<String>(ReturnT.FAIL_CODE, I18nUtil.getString("jobinfo_field_cron_unvalid") );
		}
		if (jobInfo.getJobDesc()==null || jobInfo.getJobDesc().trim().length()==0) {
			return new ReturnT<String>(ReturnT.FAIL_CODE, (I18nUtil.getString("system_please_input")+I18nUtil.getString("jobinfo_field_jobdesc")) );
		}
		if (jobInfo.getAuthor()==null || jobInfo.getAuthor().trim().length()==0) {
			return new ReturnT<String>(ReturnT.FAIL_CODE, (I18nUtil.getString("system_please_input")+I18nUtil.getString("jobinfo_field_author")) );
		}
		if (ExecutorRouteStrategyEnum.match(jobInfo.getExecutorRouteStrategy(), null) == null) {
			return new ReturnT<String>(ReturnT.FAIL_CODE, (I18nUtil.getString("jobinfo_field_executorRouteStrategy")+I18nUtil.getString("system_unvalid")) );
		}
		if (ExecutorBlockStrategyEnum.match(jobInfo.getExecutorBlockStrategy(), null) == null) {
			return new ReturnT<String>(ReturnT.FAIL_CODE, (I18nUtil.getString("jobinfo_field_executorBlockStrategy")+I18nUtil.getString("system_unvalid")) );
		}

		// ChildJobId valid
		if (jobInfo.getChildJobId()!=null && jobInfo.getChildJobId().trim().length()>0) {
			String[] childJobIds = jobInfo.getChildJobId().split(",");
			for (String childJobIdItem: childJobIds) {
				if (childJobIdItem!=null && childJobIdItem.trim().length()>0 && isNumeric(childJobIdItem)) {
					XxlJobInfo childJobInfo = xxlJobInfoDao.loadById(Integer.valueOf(childJobIdItem));
					if (childJobInfo==null) {
						return new ReturnT<String>(ReturnT.FAIL_CODE,
								MessageFormat.format((I18nUtil.getString("jobinfo_field_childJobId")+"({0})"+I18nUtil.getString("system_not_found")), childJobIdItem));
					}
				} else {
					return new ReturnT<String>(ReturnT.FAIL_CODE,
							MessageFormat.format((I18nUtil.getString("jobinfo_field_childJobId")+"({0})"+I18nUtil.getString("system_unvalid")), childJobIdItem));
				}
			}

			String temp = "";	// join ,
			for (String item:childJobIds) {
				temp += item + ",";
			}
			temp = temp.substring(0, temp.length()-1);

			jobInfo.setChildJobId(temp);
		}

		// group valid
		XxlJobGroup jobGroup = xxlJobGroupDao.load(jobInfo.getJobGroup());
		if (jobGroup == null) {
			return new ReturnT<String>(ReturnT.FAIL_CODE, (I18nUtil.getString("jobinfo_field_jobgroup")+I18nUtil.getString("system_unvalid")) );
		}

		// stage job info
		XxlJobInfo exists_jobInfo = xxlJobInfoDao.loadById(jobInfo.getId());
		if (exists_jobInfo == null) {
			return new ReturnT<String>(ReturnT.FAIL_CODE, (I18nUtil.getString("jobinfo_field_id")+I18nUtil.getString("system_not_found")) );
		}

		// next trigger time (5s后生效，避开预读周期)
		long nextTriggerTime = exists_jobInfo.getTriggerNextTime();
		if (exists_jobInfo.getTriggerStatus() == 1 && !jobInfo.getJobCron().equals(exists_jobInfo.getJobCron()) ) {
			try {
				Date nextValidTime = new CronExpression(jobInfo.getJobCron()).getNextValidTimeAfter(new Date(System.currentTimeMillis() + JobScheduleHelper.PRE_READ_MS));
				if (nextValidTime == null) {
					return new ReturnT<String>(ReturnT.FAIL_CODE, I18nUtil.getString("jobinfo_field_cron_never_fire"));
				}
				nextTriggerTime = nextValidTime.getTime();
			} catch (ParseException e) {
				logger.error(e.getMessage(), e);
				return new ReturnT<String>(ReturnT.FAIL_CODE, I18nUtil.getString("jobinfo_field_cron_unvalid")+" | "+ e.getMessage());
			}
		}

		exists_jobInfo.setJobGroup(jobInfo.getJobGroup());
		exists_jobInfo.setJobCron(jobInfo.getJobCron());
		exists_jobInfo.setJobDesc(jobInfo.getJobDesc());
		exists_jobInfo.setAuthor(jobInfo.getAuthor());
		exists_jobInfo.setAlarmEmail(jobInfo.getAlarmEmail());
		exists_jobInfo.setExecutorRouteStrategy(jobInfo.getExecutorRouteStrategy());
		exists_jobInfo.setExecutorHandler(jobInfo.getExecutorHandler());
		exists_jobInfo.setExecutorParam(jobInfo.getExecutorParam());
		exists_jobInfo.setExecutorBlockStrategy(jobInfo.getExecutorBlockStrategy());
		exists_jobInfo.setExecutorTimeout(jobInfo.getExecutorTimeout());
		exists_jobInfo.setExecutorFailRetryCount(jobInfo.getExecutorFailRetryCount());
		exists_jobInfo.setChildJobId(jobInfo.getChildJobId());
		exists_jobInfo.setTriggerNextTime(nextTriggerTime);
        xxlJobInfoDao.update(exists_jobInfo);


		return ReturnT.SUCCESS;
	}

	@Override
	public ReturnT<String> remove(int id) {
		XxlJobInfo xxlJobInfo = xxlJobInfoDao.loadById(id);
		if (xxlJobInfo == null) {
			return ReturnT.SUCCESS;
		}

		xxlJobInfoDao.delete(id);
		xxlJobLogDao.delete(id);
		xxlJobLogGlueDao.deleteByJobId(id);
		return ReturnT.SUCCESS;
	}

	@Override
	public ReturnT<String> start(int id) {
		XxlJobInfo xxlJobInfo = xxlJobInfoDao.loadById(id);

		// next trigger time (5s后生效，避开预读周期)
		long nextTriggerTime = 0;
		try {
			Date nextValidTime = new CronExpression(xxlJobInfo.getJobCron()).getNextValidTimeAfter(new Date(System.currentTimeMillis() + JobScheduleHelper.PRE_READ_MS));
			if (nextValidTime == null) {
				return new ReturnT<String>(ReturnT.FAIL_CODE, I18nUtil.getString("jobinfo_field_cron_never_fire"));
			}
			nextTriggerTime = nextValidTime.getTime();
		} catch (ParseException e) {
			logger.error(e.getMessage(), e);
			return new ReturnT<String>(ReturnT.FAIL_CODE, I18nUtil.getString("jobinfo_field_cron_unvalid")+" | "+ e.getMessage());
		}

		xxlJobInfo.setTriggerStatus(1);
		xxlJobInfo.setTriggerLastTime(0);
		xxlJobInfo.setTriggerNextTime(nextTriggerTime);

		xxlJobInfoDao.update(xxlJobInfo);
		return ReturnT.SUCCESS;
	}

	@Override
	public ReturnT<String> stop(int id) {
        XxlJobInfo xxlJobInfo = xxlJobInfoDao.loadById(id);

		xxlJobInfo.setTriggerStatus(0);
		xxlJobInfo.setTriggerLastTime(0);
		xxlJobInfo.setTriggerNextTime(0);

		xxlJobInfoDao.update(xxlJobInfo);
		return ReturnT.SUCCESS;
	}

	@Override
	public Map<String, Object> dashboardInfo() {

		int jobInfoCount = xxlJobInfoDao.findAllCount();
		int jobLogCount = xxlJobLogDao.triggerCountByHandleCode(-1);
		int jobLogSuccessCount = xxlJobLogDao.triggerCountByHandleCode(ReturnT.SUCCESS_CODE);

		// executor count
		Set<String> executerAddressSet = new HashSet<String>();
		List<XxlJobGroup> groupList = xxlJobGroupDao.findAll();

		if (groupList!=null && !groupList.isEmpty()) {
			for (XxlJobGroup group: groupList) {
				if (group.getRegistryList()!=null && !group.getRegistryList().isEmpty()) {
					executerAddressSet.addAll(group.getRegistryList());
				}
			}
		}

		int executorCount = executerAddressSet.size();

		Map<String, Object> dashboardMap = new HashMap<String, Object>();
		dashboardMap.put("jobInfoCount", jobInfoCount);
		dashboardMap.put("jobLogCount", jobLogCount);
		dashboardMap.put("jobLogSuccessCount", jobLogSuccessCount);
		dashboardMap.put("executorCount", executorCount);
		return dashboardMap;
	}

	private static final String TRIGGER_CHART_DATA_CACHE = "trigger_chart_data_cache";
	@Override
	public ReturnT<Map<String, Object>> chartInfo(Date startDate, Date endDate) {
		/*// get cache
		String cacheKey = TRIGGER_CHART_DATA_CACHE + "_" + startDate.getTime() + "_" + endDate.getTime();
		Map<String, Object> chartInfo = (Map<String, Object>) LocalCacheUtil.get(cacheKey);
		if (chartInfo != null) {
			return new ReturnT<Map<String, Object>>(chartInfo);
		}*/

		// process
		List<String> triggerDayList = new ArrayList<String>();
		List<Integer> triggerDayCountRunningList = new ArrayList<Integer>();
		List<Integer> triggerDayCountSucList = new ArrayList<Integer>();
		List<Integer> triggerDayCountFailList = new ArrayList<Integer>();
		int triggerCountRunningTotal = 0;
		int triggerCountSucTotal = 0;
		int triggerCountFailTotal = 0;

		List<Map<String, Object>> triggerCountMapAll = xxlJobLogDao.triggerCountByDay(startDate, endDate);
		if (triggerCountMapAll!=null && triggerCountMapAll.size()>0) {
			for (Map<String, Object> item: triggerCountMapAll) {
				String day = String.valueOf(item.get("triggerDay"));
				int triggerDayCount = Integer.valueOf(String.valueOf(item.get("triggerDayCount")));
				int triggerDayCountRunning = Integer.valueOf(String.valueOf(item.get("triggerDayCountRunning")));
				int triggerDayCountSuc = Integer.valueOf(String.valueOf(item.get("triggerDayCountSuc")));
				int triggerDayCountFail = triggerDayCount - triggerDayCountRunning - triggerDayCountSuc;

				triggerDayList.add(day);
				triggerDayCountRunningList.add(triggerDayCountRunning);
				triggerDayCountSucList.add(triggerDayCountSuc);
				triggerDayCountFailList.add(triggerDayCountFail);

				triggerCountRunningTotal += triggerDayCountRunning;
				triggerCountSucTotal += triggerDayCountSuc;
				triggerCountFailTotal += triggerDayCountFail;
			}
		} else {
            for (int i = 4; i > -1; i--) {
                triggerDayList.add(DateUtil.formatDate(DateUtil.addDays(new Date(), -i)));
				triggerDayCountRunningList.add(0);
                triggerDayCountSucList.add(0);
                triggerDayCountFailList.add(0);
            }
		}

		Map<String, Object> result = new HashMap<String, Object>();
		result.put("triggerDayList", triggerDayList);
		result.put("triggerDayCountRunningList", triggerDayCountRunningList);
		result.put("triggerDayCountSucList", triggerDayCountSucList);
		result.put("triggerDayCountFailList", triggerDayCountFailList);

		result.put("triggerCountRunningTotal", triggerCountRunningTotal);
		result.put("triggerCountSucTotal", triggerCountSucTotal);
		result.put("triggerCountFailTotal", triggerCountFailTotal);

		/*// set cache
		LocalCacheUtil.set(cacheKey, result, 60*1000);     // cache 60s*/

		return new ReturnT<Map<String, Object>>(result);
	}

}
