package com.nanjing.water.service.quartz;

import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import com.google.gson.JsonParser;
import com.nanjing.water.common.ConstantFactory;
import com.nanjing.water.common.ExecutedResult;
import com.nanjing.water.common.util.LocalDateTimeUtil;
import com.nanjing.water.common.util.NumericUtil;
import com.nanjing.water.common.util.StringUtil;
import com.nanjing.water.repository.impl.QuartzTaskErrorMapperImpl;
import com.nanjing.water.repository.impl.QuartzTaskRecordMapperImpl;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.lang.reflect.Method;
import java.time.LocalDateTime;
import java.util.Objects;

@Service
public class QuartzExecutor {
    private static Logger logger = LoggerFactory.getLogger(QuartzExecutor.class);

    @Autowired
    private QuartzTaskRecordMapperImpl taskRecordsDao;
    @Autowired
    private QuartzTaskErrorMapperImpl taskErrorsDao;

    /**
     * 执行job
     * @param executorName 执行器名称(方法名)
     * @param jobParameter 执行参数
     */
    public ExecutedResult<String> execute(String executorName, String jobParameter) {
        try {
            // 根据执行器key，查找执行器的方法（入参：String jobParameter，返参：ExecutedResult<String>）
            Method method = QuartzExecutor.class.getMethod(executorName, String.class);
            return (ExecutedResult<String>)method.invoke(this, jobParameter);
        } catch (Exception e) {
            return ExecutedResult.failed(e.toString());
        }
    }

    /***
     * job执行器-清理任务调度日志
     * @param jobParameter 执行参数
     */
    public ExecutedResult<String> clearQuartzLog(String jobParameter) {
        try {
            int keepDays = ConstantFactory.NUM15;
            if (StringUtil.isNotNullOrEmpty(jobParameter)) {
                JsonElement element = new JsonParser().parse(jobParameter);
                if (Objects.nonNull(element) && !element.isJsonNull()) {
                    JsonObject data = element.getAsJsonObject();
                    if (data.has("keepDays") && !data.get("keepDays").isJsonNull()) {
                        keepDays = NumericUtil.tryParseInt(data.get("keepDays").getAsString(), ConstantFactory.NUM15);
                    }
                }
            }
            LocalDateTime today = LocalDateTimeUtil.todayFirst();
            LocalDateTime limitDate = LocalDateTimeUtil.dateTimeAddDay(today, -1L * keepDays);

            taskRecordsDao.clear4DateTime(LocalDateTimeUtil.getTimeStamp(limitDate).getTime());
            taskErrorsDao.clear4DateTime(LocalDateTimeUtil.getTimeStamp(limitDate).getTime());
            return ExecutedResult.success();
        } catch (Exception e) {
            return ExecutedResult.failed(e.toString());
        }
    }
}