TFM-4.3-Reloaded/src/main/java/me/StevenLawson/TotalFreedomMod/announcer/Announcer.java

package me.StevenLawson.TotalFreedomMod.announcer;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import me.StevenLawson.TotalFreedomMod.TotalFreedomMod;
import me.StevenLawson.TotalFreedomMod.config.ConfigurationEntry;
import me.StevenLawson.TotalFreedomMod.util.Utilities;
import org.bukkit.scheduler.BukkitRunnable;

public class Announcer {

	private static final List<String> ANNOUNCEMENTS = new ArrayList<String>();
	private static boolean enabled;
	private static long interval;
	private static String prefix;
	private static BukkitRunnable announcer;

	private Announcer() {
		throw new AssertionError();
	}

	public static boolean isEnabled() {
		return enabled;
	}

	public static List<String> getAnnouncements() {
		return Collections.unmodifiableList(ANNOUNCEMENTS);
	}

	public static long getTickInterval() {
		return interval;
	}

	public static String getPrefix() {
		return prefix;
	}

	public static void load() {
		stop();

		ANNOUNCEMENTS.clear();

		for (Object announcement : ConfigurationEntry.ANNOUNCER_ANNOUNCEMENTS.getList()) {
			ANNOUNCEMENTS.add(Utilities.colorize((String) announcement));
		}

		enabled = ConfigurationEntry.ANNOUNCER_ENABLED.getBoolean();
		interval = ConfigurationEntry.ANNOUNCER_INTERVAL.getInteger() * 20L;
		prefix = Utilities.colorize(ConfigurationEntry.ANNOUNCER_PREFIX.getString());

		if (enabled) {
			start();
		}
	}

	public static boolean isStarted() {
		return announcer != null;
	}

	public static void start() {
		if (isStarted()) {
			return;
		}

		announcer = new BukkitRunnable() {
			private int current = 0;

			@Override
			public void run() {
				current++;

				if (current >= ANNOUNCEMENTS.size()) {
					current = 0;
				}

				Utilities.bcastMsg(prefix + ANNOUNCEMENTS.get(current), false);
			}
		};

		announcer.runTaskTimer(TotalFreedomMod.plugin, interval, interval);
	}

	public static void stop() {
		if (announcer == null) {
			return;
		}

		try {
			announcer.cancel();
		} finally {
			announcer = null;
		}
	}
}