package net.minecraft.world.level.block;

import com.mojang.serialization.MapCodec;
import net.minecraft.core.BlockPos;
import net.minecraft.core.Direction;
import net.minecraft.core.Direction.Axis;
import net.minecraft.util.RandomSource;
import net.minecraft.world.item.context.BlockPlaceContext;
import net.minecraft.world.level.BlockGetter;
import net.minecraft.world.level.LevelReader;
import net.minecraft.world.level.ScheduledTickAccess;
import net.minecraft.world.level.block.state.BlockBehaviour;
import net.minecraft.world.level.block.state.BlockState;
import net.minecraft.world.level.block.state.StateDefinition.Builder;
import net.minecraft.world.level.block.state.properties.BlockStateProperties;
import net.minecraft.world.level.block.state.properties.BooleanProperty;
import net.minecraft.world.level.material.FluidState;
import net.minecraft.world.level.material.Fluids;
import net.minecraft.world.level.pathfinder.PathComputationType;
import net.minecraft.world.phys.shapes.CollisionContext;
import net.minecraft.world.phys.shapes.Shapes;
import net.minecraft.world.phys.shapes.VoxelShape;
import org.jspecify.annotations.Nullable;

public class LanternBlock extends Block implements SimpleWaterloggedBlock {
	public static final MapCodec<LanternBlock> CODEC = simpleCodec(LanternBlock::new);
	public static final BooleanProperty HANGING = BlockStateProperties.HANGING;
	public static final BooleanProperty WATERLOGGED = BlockStateProperties.WATERLOGGED;
	private static final VoxelShape SHAPE_STANDING = Shapes.or(Block.column(4.0, 7.0, 9.0), Block.column(6.0, 0.0, 7.0));
	private static final VoxelShape SHAPE_HANGING = SHAPE_STANDING.move(0.0, 0.0625, 0.0).optimize();

	@Override
	public MapCodec<? extends LanternBlock> codec() {
		return CODEC;
	}

	public LanternBlock(final BlockBehaviour.Properties properties) {
		super(properties);
		this.registerDefaultState(this.stateDefinition.any().setValue(HANGING, false).setValue(WATERLOGGED, false));
	}

	@Nullable
	@Override
	public BlockState getStateForPlacement(final BlockPlaceContext context) {
		FluidState replacedFluidState = context.getLevel().getFluidState(context.getClickedPos());

		for (Direction direction : context.getNearestLookingDirections()) {
			if (direction.getAxis() == Axis.Y) {
				BlockState state = this.defaultBlockState().setValue(HANGING, direction == Direction.UP);
				if (state.canSurvive(context.getLevel(), context.getClickedPos())) {
					return state.setValue(WATERLOGGED, replacedFluidState.is(Fluids.WATER));
				}
			}
		}

		return null;
	}

	@Override
	protected VoxelShape getShape(final BlockState state, final BlockGetter level, final BlockPos pos, final CollisionContext context) {
		return state.getValue(HANGING) ? SHAPE_HANGING : SHAPE_STANDING;
	}

	@Override
	protected void createBlockStateDefinition(final Builder<Block, BlockState> builder) {
		builder.add(HANGING, WATERLOGGED);
	}

	@Override
	protected boolean canSurvive(final BlockState state, final LevelReader level, final BlockPos pos) {
		Direction direction = getConnectedDirection(state).getOpposite();
		return Block.canSupportCenter(level, pos.relative(direction), direction.getOpposite());
	}

	protected static Direction getConnectedDirection(final BlockState state) {
		return state.getValue(HANGING) ? Direction.DOWN : Direction.UP;
	}

	@Override
	protected BlockState updateShape(
		final BlockState state,
		final LevelReader level,
		final ScheduledTickAccess ticks,
		final BlockPos pos,
		final Direction directionToNeighbour,
		final BlockPos neighbourPos,
		final BlockState neighbourState,
		final RandomSource random
	) {
		if ((Boolean)state.getValue(WATERLOGGED)) {
			ticks.scheduleTick(pos, Fluids.WATER, Fluids.WATER.getTickDelay(level));
		}

		return getConnectedDirection(state).getOpposite() == directionToNeighbour && !state.canSurvive(level, pos)
			? Blocks.AIR.defaultBlockState()
			: super.updateShape(state, level, ticks, pos, directionToNeighbour, neighbourPos, neighbourState, random);
	}

	@Override
	protected FluidState getFluidState(final BlockState state) {
		return state.getValue(WATERLOGGED) ? Fluids.WATER.getSource(false) : super.getFluidState(state);
	}

	@Override
	protected boolean isPathfindable(final BlockState state, final PathComputationType type) {
		return false;
	}
}