package net.voltexstudios.applicationLobby.util;

import net.voltexstudios.applicationLobby.holograms.HologramService;
import org.bukkit.Location;
import org.bukkit.entity.Entity;
import org.bukkit.entity.Player;
import org.bukkit.scheduler.BukkitRunnable;
import org.bukkit.util.RayTraceResult;
import org.bukkit.util.Vector;

public class EyeTrace extends BukkitRunnable {

    private static final double MAX_DISTANCE = 15.0;

    private final Player player;

    public EyeTrace(Player player) {
        this.player = player;
    }

    @Override
    public void run() {
        if (player == null || !player.isOnline()) {
            cancel();
            return;
        }

        Location eyeLocation = player.getEyeLocation();
        Location closestHologramLocation = HologramService.getInstance().getClosestHologramLocation(player);
        if (closestHologramLocation == null || eyeLocation.getWorld() != closestHologramLocation.getWorld()) {
            return;
        }

        if (eyeLocation.distance(closestHologramLocation) > MAX_DISTANCE) {
            //unhover if player is too far away
            HologramService.getInstance().handleHologramHover(player, null);
            return;
        }

        checkPlayerLookingAtEntity(player);
    }

    private void checkPlayerLookingAtEntity(Player player) {

        Location eyeLocation = player.getEyeLocation();
        Vector direction = eyeLocation.getDirection();

        // RayTrace durchführen
        RayTraceResult rayTraceResult = player.getWorld().rayTraceEntities(
                eyeLocation,
                direction,
                MAX_DISTANCE,
                entity -> entity != player && HologramService.getInstance().isHologram(entity.getUniqueId())
        );

        if (rayTraceResult != null) {
            Entity targetEntity = rayTraceResult.getHitEntity();
            if (targetEntity != null) {
                // Spieler betrachtet ein Interaktions-Entity
                HologramService.getInstance().handleHologramHover(player, targetEntity);
                return;
            }
        }
        HologramService.getInstance().handleHologramHover(player, null);
    }
}