package xyz.etztech.serverapi.tps;

import java.util.LinkedList;

public class TPS implements Runnable {
    private transient long lastPoll = System.nanoTime();
    private final LinkedList<Float> history = new LinkedList<>();

    @Override
    public void run() {
        final long startTime = System.nanoTime();
        long timeSpent = (startTime - lastPoll) / 1000;
        if (timeSpent == 0) {
            timeSpent = 1;
        }
        if (history.size() > 10) {
            history.remove();
        }
        long tickInterval = 50;
        float tps = tickInterval * 1000000.0f / timeSpent;
        if (tps <= 21) {
            history.add(tps);
        }
        lastPoll = startTime;
    }

    public LinkedList<Float> getHistory() {
        return history;
    }
}