package games.coob.core.hologram;

import games.coob.core.specific.hologram.NMSHologram;
import lombok.RequiredArgsConstructor;
import org.bukkit.Location;
import org.bukkit.entity.Player;
import org.bukkit.scheduler.BukkitRunnable;
import org.mineacademy.fo.remain.Remain;

/**
 * Represents a self-repeating task managing hologram.
 */
@RequiredArgsConstructor
public final class HologramTask extends BukkitRunnable {

    /**
     * The range from which holograms are visible
     */
    private final double visibleTresholdBlocks;

    /**
     * @see Runnable#run()
     */
    @Override
    public void run() {
        final HologramRegistry registry = HologramRegistry.getInstance();

        for (final Player player : Remain.getOnlinePlayers()) {
            for (final NMSHologram hologram : registry.getLoadedHolograms()) {
                if (registry.isRegistered(hologram))
                    NMSHologram.sendTo(hologram.getLocation(), player, hologram.getLines());
                else showPlayersInRange(hologram);
            }
        }
    }

    /*
     * Shows players within the set range to the NPC
     */
    private void showPlayersInRange(final NMSHologram hologram) {
        final Location hologramLocation = hologram.getLocation();

        for (final Player online : Remain.getOnlinePlayers()) {
            final Location onlineLocation = online.getLocation();

            if (onlineLocation.getWorld().equals(hologramLocation.getWorld()) && onlineLocation.distance(hologramLocation) < this.visibleTresholdBlocks) {
                hologram.show(hologramLocation, online, hologram.getLines());
            }
        }
    }
}