/*
 * Copyright (C) 2024  Minecon724
 * Tweaks724 is licensed under the GNU General Public License. See the LICENSE.md file
 * in the project root for the full license text.
 */

package eu.m724.tweaks.ping;

import org.bukkit.entity.Player;

import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;

public class PlayerPingStorage {
    // in nanos
    private static final Map<Player, Long> pings = new ConcurrentHashMap<>();
    private static final Map<Player, Integer> pingsCount = new ConcurrentHashMap<>();

    // nanoseconds per tick
    private static volatile long nspt = 0L;

    public static long getPingNanos(Player player) {
        return pings.getOrDefault(player, 0L);
    }

    public static double getPingMillis(Player player) {
        return getPingNanos(player) / 1000000.0; // a mil ns in ms
    }

    public static long getNanosPerTick() {
        return nspt;
    }

    public static double getMillisPerTick() {
        return nspt / 1000000.0; // a mil ns in ms
    }

    static void submitPing(Player player, long currentPing) {
        int count = pingsCount.getOrDefault(player, 0);
        long average = pings.getOrDefault(player, 0L);

        if (count < 5) {
            average = ((average * count) + currentPing) / (count + 1);
            pingsCount.put(player, count + 1);
        } else {
            average += (currentPing - average) / 5;
        }

        pings.put(player, average);
    }

    static void submitNspt(long currentNspt) {
        nspt = currentNspt;
    }
}