package edu.jiangxin.apktoolbox.utils;
   
   import org.apache.logging.log4j.LogManager;
   import org.apache.logging.log4j.Logger;
   
   import java.text.ParseException;
   import java.text.SimpleDateFormat;
   import java.util.Date;
   
  public class DateUtils {
      private static final Logger LOGGER = LogManager.getLogger(DateUtils.class.getSimpleName());
  
      private static final String PATTERN = "yyyy-MM-dd HH:mm:ss";
  
      /**
       * Convert timestamp in second to a date string
       */
      public static String secondToHumanFormat(long second) {
          SimpleDateFormat sdf = new SimpleDateFormat(PATTERN);
          try {
              return sdf.format(new Date(second * 1000));
          } catch (Exception e) {
              LOGGER.warn("Can not convert timestamp to a date");
              return "";
          }
      }
  
      public static String millisecondToHumanFormat(long millisecond) {
          SimpleDateFormat sdf = new SimpleDateFormat(PATTERN);
          try {
              return sdf.format(new Date(millisecond));
          } catch (Exception e) {
              LOGGER.warn("Can not convert timestamp to a date");
              return "";
          }
      }
  
      /**
       * Convert date string to a timestamp in second
       */
      public static Long humanFormatToSecond(String dateString) {
          try {
              SimpleDateFormat sdf = new SimpleDateFormat(PATTERN);
              Date date = sdf.parse(dateString);
              return date.getTime() / 1000;
          } catch (ParseException e) {
              LOGGER.warn("Can not parse this date string");
              return 0L;
          }
      }
  
      /**
       * Convert date string to a timestamp in millisecond
       */
      public static Long humanFormatToMillisecond(String dateString) {
          try {
              SimpleDateFormat sdf = new SimpleDateFormat(PATTERN);
              Date date = sdf.parse(dateString);
              return date.getTime();
          } catch (ParseException e) {
              LOGGER.warn("Can not parse this date string");
              return 0L;
          }
      }
  
      public static String getCurrentDateString() {
          try {
              SimpleDateFormat dateFormat = new SimpleDateFormat("yyyyMMddHHmmss");
              return dateFormat.format(new Date());
          } catch (Exception e) {
              LOGGER.error("getCurrentDateString error", e);
          }
          return null;
      }
  }