package net.minecraft.world.level.block;

import com.mojang.math.OctahedralGroup;
import com.mojang.serialization.Codec;
import net.minecraft.core.Direction;
import net.minecraft.network.chat.Component;
import net.minecraft.util.ExtraCodecs;
import net.minecraft.util.StringRepresentable;

public enum Mirror implements StringRepresentable {
	NONE("none", OctahedralGroup.IDENTITY),
	LEFT_RIGHT("left_right", OctahedralGroup.INVERT_Z),
	FRONT_BACK("front_back", OctahedralGroup.INVERT_X);

	public static final Codec<Mirror> CODEC = StringRepresentable.fromEnum(Mirror::values);
	@Deprecated
	public static final Codec<Mirror> LEGACY_CODEC = ExtraCodecs.legacyEnum(Mirror::valueOf);
	private final String id;
	private final Component symbol;
	private final OctahedralGroup rotation;

	private Mirror(final String id, final OctahedralGroup rotation) {
		this.id = id;
		this.symbol = Component.translatable("mirror." + id);
		this.rotation = rotation;
	}

	/**
	 * Mirrors the given rotation like specified by this mirror. Rotations start at 0 and go up to rotationCount-1. 0 is front, rotationCount/2 is back.
	 */
	public int mirror(int rotation, int rotationCount) {
		int i = rotationCount / 2;
		int j = rotation > i ? rotation - rotationCount : rotation;
		switch (this) {
			case LEFT_RIGHT:
				return (i - j + rotationCount) % rotationCount;
			case FRONT_BACK:
				return (rotationCount - j) % rotationCount;
			default:
				return rotation;
		}
	}

	/**
	 * Determines the rotation that is equivalent to this mirror if the rotating object faces in the given direction
	 */
	public Rotation getRotation(Direction facing) {
		Direction.Axis axis = facing.getAxis();
		return (this != LEFT_RIGHT || axis != Direction.Axis.Z) && (this != FRONT_BACK || axis != Direction.Axis.X) ? Rotation.NONE : Rotation.CLOCKWISE_180;
	}

	/**
	 * Mirror the given facing according to this mirror
	 */
	public Direction mirror(Direction facing) {
		if (this == FRONT_BACK && facing.getAxis() == Direction.Axis.X) {
			return facing.getOpposite();
		} else {
			return this == LEFT_RIGHT && facing.getAxis() == Direction.Axis.Z ? facing.getOpposite() : facing;
		}
	}

	public OctahedralGroup rotation() {
		return this.rotation;
	}

	public Component symbol() {
		return this.symbol;
	}

	@Override
	public String getSerializedName() {
		return this.id;
	}
}