package domain;

import java.io.Serializable;

public class HitoriGameTimer implements Serializable {
    private static final long serialVersionUID = 1L;

    private transient long startTime;
    private long elapsedTime;
    private boolean isPaused;

    public HitoriGameTimer() {
        this.startTime = 0;
        this.elapsedTime = 0;
        this.isPaused = false;
    }

    public void startTimer() {
        if (isPaused || startTime == 0) {
            startTime = System.currentTimeMillis();
            isPaused = false;
        }
    }

    public void pauseTimer() {
        if (!isPaused && startTime > 0) {
            elapsedTime += System.currentTimeMillis() - startTime;
            startTime = 0;
            isPaused = true;
        }
    }

    public void stopTimer() {
        if (!isPaused && startTime > 0) {
            elapsedTime += System.currentTimeMillis() - startTime;
            startTime = 0;
        }
    }

    public void resetTimer() {
        startTime = 0;
        elapsedTime = 0;
        isPaused = false;
    }

    public long getElapsedTimeInSeconds() {
        if (isPaused || startTime == 0) {
            return elapsedTime / 1000;
        }
        return (elapsedTime + System.currentTimeMillis() - startTime) / 1000;
    }

    public boolean isPaused() {
        return isPaused;
    }
}