/*
 * This file is part of spark.
 *
 *  Copyright (c) lucko (Luck) <luck@lucko.me>
 *  Copyright (c) contributors
 *
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package me.lucko.spark.bukkit;

import me.lucko.spark.sampler.TickCounter;

import org.bukkit.plugin.Plugin;
import org.bukkit.scheduler.BukkitTask;

import java.util.HashSet;
import java.util.Set;
import java.util.concurrent.atomic.LongAdder;

public class BukkitTickCounter implements TickCounter, Runnable {
    private final Plugin plugin;
    private BukkitTask task;

    private final Set<Runnable> tasks = new HashSet<>();
    private final LongAdder tick = new LongAdder();

    public BukkitTickCounter(Plugin plugin) {
        this.plugin = plugin;
    }

    @Override
    public void run() {
        for (Runnable r : this.tasks){
            r.run();
        }
        this.tick.increment();
    }

    @Override
    public void start() {
        this.task = this.plugin.getServer().getScheduler().runTaskTimer(this.plugin, this, 1, 1);
    }

    @Override
    public void close() {
        this.task.cancel();
    }

    @Override
    public long getCurrentTick() {
        return this.tick.longValue();
    }

    @Override
    public void addTickTask(Runnable runnable) {
        this.tasks.add(runnable);
    }

    @Override
    public void removeTickTask(Runnable runnable) {
        this.tasks.remove(runnable);
    }
}