package it.acxent.videoj;

import java.sql.Time;
import java.sql.Timestamp;
import java.util.Calendar;

public class Timer {
  private Timestamp tStart = null;
  
  private Timestamp tStop = null;
  
  public void start() {
    this.tStart = new Timestamp(System.currentTimeMillis());
    this.tStop = null;
  }
  
  public void stop() {
    this.tStop = new Timestamp(System.currentTimeMillis());
  }
  
  public String getDurataSec() {
    return String.valueOf(getDurataSecLong());
  }
  
  public long getDurataSecLong() {
    long secs = 0L;
    if (this.tStop == null) {
      secs = getTimeDiff(new Time(getTStart().getTime()), new Time(System.currentTimeMillis()));
    } else {
      secs = getTimeDiff(new Time(getTStart().getTime()), new Time(this.tStop.getTime()));
    } 
    return secs;
  }
  
  public String getDurataHourMin() {
    String temp = secToTempoHourMin(getDurataSecLong());
    return temp;
  }
  
  public static String secToTempoHourMin(long sec) {
    long h = sec / 3600L;
    long min = (sec - h * 3600L) / 60L;
    long secF = sec - h * 3600L - min * 60L;
    return "" + h + " h " + h + " min " + min + " sec";
  }
  
  public Timestamp getTStart() {
    if (this.tStart == null)
      this.tStart = new Timestamp(System.currentTimeMillis()); 
    return this.tStart;
  }
  
  public Timestamp getTStop() {
    return this.tStop;
  }
  
  public String getDurata() {
    String temp = "\n\n--------------------------------------------------\nPartenza: " + String.valueOf(getTStart()) + "\nFine: " + String.valueOf(this.tStop) + "\nDurata: " + 
      secToTempoHourMin(getDurataSecLong());
    return temp;
  }
  
  public long getDurataMilliSec() {
    long msecs = 0L;
    if (this.tStop == null) {
      msecs = System.currentTimeMillis() - getTStart().getTime();
    } else {
      msecs = this.tStop.getTime() - getTStart().getTime();
    } 
    return msecs;
  }
  
  public static long getTimeDiff(Time time1, Time time2) {
    long c1, c2;
    if (time1 == null) {
      c1 = 0L;
    } else {
      Calendar cal = Calendar.getInstance();
      cal.setTimeInMillis(time1.getTime());
      c1 = (long)(cal.get(11) * 3600 + cal.get(12) * 60 + cal.get(13));
    } 
    if (time2 == null) {
      c2 = 0L;
    } else {
      Calendar cal = Calendar.getInstance();
      cal.setTimeInMillis(time2.getTime());
      c2 = (long)(cal.get(11) * 3600 + cal.get(12) * 60 + cal.get(13));
    } 
    long difInSecs = c2 - c1;
    return difInSecs;
  }
}