package ghast;

import lombok.experimental.UtilityClass;
import org.bukkit.Location;
import org.bukkit.Material;
import org.bukkit.SkullType;
import org.bukkit.block.Block;
import org.bukkit.block.BlockFace;
import org.bukkit.block.Sign;
import org.bukkit.block.Skull;
import ru.dmitriymx.reflection.ReflectionClass;
import ru.dmitriymx.reflection.ReflectionObject;

import java.nio.charset.StandardCharsets;
import java.util.Base64;
import java.util.UUID;

@UtilityClass
@SuppressWarnings("unused")
public class BuildHelper {

	private final Class<?> CLASS_BLOCKPOSITION = getClassForName("net.minecraft.server.v1_12_R1.BlockPosition");
	private final Class<?> CLASS_GAMEPROFILE = getClassForName("com.mojang.authlib.GameProfile");

	/**
	 * Установка черепа.
	 * <p>
	 * После установки, необходимо выполнить <code>skull.update(true);</code>
	 *
	 * @param location место установки.
	 * @param face куда будет повёрнут череп.
	 * @return Блок типа {@link Skull}
	 */
	public Skull placeSkull(Location location, BlockFace face) {
		Location fixedLocation = GhastTools.copyLocation(location);
		fixedLocation.setZ(fixedLocation.getZ() - 1);

		Block block = location.getWorld().getBlockAt(location);
		block.setType(Material.SKULL);

		Skull skull = (Skull) block.getState();
		skull.setRotation(face);

		org.bukkit.material.Skull skullMaterial = (org.bukkit.material.Skull) skull.getData();
		skullMaterial.setFacingDirection(BlockFace.SELF);

		return skull;
	}

	/**
	 * Установка головы игрока.
	 * <p>
	 * После установки, необходимо выполнить <code>skull.update(true);</code>
	 *
	 * @param location место установки.
	 * @param face куда будет повёрнута голова.
	 * @return Блок типа {@link Skull}
	 */
	public static Skull placePlayerHead(Location location, BlockFace face) {
		Location fixedLocation = GhastTools.copyLocation(location);
		fixedLocation.setZ(fixedLocation.getZ() - 1);

		Block block = fixedLocation.getWorld().getBlockAt(fixedLocation);
		block.setType(Material.SKULL);

		Skull skull = (Skull) block.getState();
		skull.setSkullType(SkullType.PLAYER);
		skull.setRotation(face);

		org.bukkit.material.Skull skullMaterial = (org.bukkit.material.Skull) skull.getData();
		skullMaterial.setFacingDirection(BlockFace.SELF);
		return skull;
	}

	/**
	 * Установка текстурированной головы игрока.
	 *
	 * @param location место установки.
	 * @param face куда будет повёрнута голова.
	 * @param skinUrl URL на текстуру
	 * @return Блок типа {@link Skull}
	 */
	public static Skull placePlayerHead(Location location, BlockFace face, String skinUrl) {
		Skull playerHead = placePlayerHead(location, face);
		playerHead.update(true);
		setPlayerHeadSkin(playerHead, skinUrl);

		return playerHead;
	}

	/**
	 * Установка текстуры для головы игрока.
	 *
	 * @param skull блок головы игрока
	 * @param skinUrl URL на текстуру
	 */
	public static void setPlayerHeadSkin(Skull skull, String skinUrl) {
		//TODO заменить рефлексию на "фантомные" классы
		ReflectionObject refobjBlockPosition = new ReflectionClass(CLASS_BLOCKPOSITION)
				.constructor(double.class, double.class, double.class)
				.newInstance(skull.getX(), skull.getY(), skull.getZ());

		new ReflectionObject(skull.getWorld())
				.method("getHandle").invoke()
				.method("getTileEntity", CLASS_BLOCKPOSITION)
					.invoke(refobjBlockPosition.getOriginalObject())
				.method("setGameProfile", CLASS_GAMEPROFILE)
					.invoke(getRefObjPlayerProfile(skinUrl).getOriginalObject());
	}

	public Sign placeSignWall(Location location, BlockFace face) {
		Block block = location.getWorld().getBlockAt(location);
		block.setType(Material.WALL_SIGN);

		Sign sign = (Sign) block.getState();
		org.bukkit.material.Sign signMaterial = (org.bukkit.material.Sign) sign.getData();
		signMaterial.setFacingDirection(face);

		return sign;
	}

	private ReflectionObject getRefObjPlayerProfile(String url){
		ReflectionObject refobjProperty = new ReflectionClass(
					getClassForName("com.mojang.authlib.properties.Property"))
				.constructor(String.class, String.class)
				.newInstance("textures", Base64.getEncoder()
						.encodeToString(("{textures:{SKIN:{url:\"" + url + "\"}}}").getBytes(StandardCharsets.UTF_8)));

		ReflectionObject refobjGameProfile = new ReflectionClass(CLASS_GAMEPROFILE)
				.constructor(UUID.class, String.class)
				.newInstance(UUID.randomUUID(), null);
		refobjGameProfile
				.method("getProperties").invoke()
				.method("put", Object.class, Object.class)
					.invoke("textures", refobjProperty.getOriginalObject());

		return refobjGameProfile;
	}

	private Class<?> getClassForName(String className) {
		try {
			return Class.forName(className);
		} catch (Exception e) {
			throw new RuntimeException(e);
		}
	}
}