package ej.api;

import java.util.LinkedHashSet;
import java.util.Set;

import org.powerbot.game.api.methods.Game;
import org.powerbot.game.api.methods.node.Locations;
import org.powerbot.game.api.wrappers.Tile;
import org.powerbot.game.api.wrappers.node.Location;
import org.powerbot.game.client.Client;
import org.powerbot.game.client.RSAnimableNode;

public class LocationsApi {

	public static Location getTopAt(final Tile t, final int mask) {
		Location[] objects = getAt(t, mask);
		return objects.length > 0 ? objects[0] : null;
	}

	public static Location[] getAt(final Tile t, final int mask) {
		Set<Location> objects = getAtLocal(t.getX() - Game.getBaseX(), t.getY()
				- Game.getBaseY(), mask);
		return objects.toArray(new Location[objects.size()]);
	}

	public static Location getTopAt(Tile tile, int[][] ids) {
		for (int[] subIds : ids)
			if (getTopAt(tile, subIds) != null)
				return getTopAt(tile, subIds);
		return null;
	}

	public static Location getTopAt(Tile tile, int... id) {
		Location[] objects = getAllAt(tile);
		for (Location object : objects) {
			for (int doorID : id)
				if (object.getId() == doorID)
					return object;
		}
		return null;
	}

	public static Location[] getAllAt(Tile location) {
		Set<Location> objects = getAtLocal(location.getX() - Game.getBaseX(),
				location.getY() - Game.getBaseY(), -1);
		return objects.toArray(new Location[objects.size()]);
	}

	private static Set<Location> getAtLocal(int x, int y, final int mask) {
		Client client = methods.client;
		Set<Location> objects = new LinkedHashSet<Location>();
		if (client.getRSGroundArray() == null) {
			return objects;
		}

		try {
			int plane = client.getPlane();
			RSGround rsGround = client.getRSGroundArray()[plane][x][y];

			if (rsGround != null) {
				Location rsObj;
				RSInteractable obj;

				x += Game.getBaseX();
				y += Game.getBaseY();

				if ((mask & Locations.TYPE_INTERACTIVE) != 0) {
					for (RSAnimableNode node = rsGround.getRSAnimableList(); node != null; node = node
							.getNext()) {
						obj = node.getRSAnimable();
						if (obj != null && obj instanceof Location) {
							rsObj = (Location) obj;
							if (rsObj.getId() != -1) {
								objects.add(new Location(methods, rsObj,
										Locations.TYPE_INTERACTIVE, plane));
							}
						}
					}
				}

				// Ground Decorations
				if ((mask & Locations.TYPE_FLOOR_DECORATION) != 0) {
					obj = rsGround.getFloorDecoration();
					if (obj != null) {
						rsObj = (Location) obj;
						if (rsObj.getId() != -1) {
							objects.add(new Locations(methods, rsObj,
									Locations.TYPE_FLOOR_DECORATION, plane));
						}
					}
				}

				// Boundaries / Doors / Fences / Walls
				if ((mask & Locations.TYPE_BOUNDARY) != 0) {
					obj = rsGround.getBoundary1();
					if (obj != null) {
						rsObj = (Location) obj;
						if (rsObj.getId() != -1) {
							objects.add(new Location(methods, rsObj,
									Locations.TYPE_BOUNDARY, plane));
						}
					}

					obj = rsGround.getBoundary2();
					if (obj != null) {
						rsObj = (Location) obj;
						if (rsObj.getId() != -1) {
							objects.add(new Location(methods, rsObj,
									Locations.TYPE_BOUNDARY, plane));
						}
					}
				}

				// Wall Decorations
				if ((mask & Locations.TYPE_WALL_DECORATION) != 0) {
					obj = rsGround.getWallDecoration1();
					if (obj != null) {
						rsObj = (Location) obj;
						if (rsObj.getId() != -1) {
							objects.add(new Location(methods, rsObj,
									Locations.TYPE_WALL_DECORATION, plane));
						}
					}

					obj = rsGround.getWallDecoration2();
					if (obj != null) {
						rsObj = (Location) obj;
						if (rsObj.getId() != -1) {
							objects.add(new Location(methods, rsObj,
									Locations.TYPE_WALL_DECORATION, plane));
						}
					}
				}
			}
		} catch (Exception ignored) {
		}
		return objects;
	}

}