package net.minecraft.world.level.block;

import com.mojang.serialization.MapCodec;
import javax.annotation.Nullable;
import net.minecraft.core.BlockPos;
import net.minecraft.core.Direction;
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;
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;

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<LanternBlock> codec() {
        return CODEC;
    }

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

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

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

        return null;
    }

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

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

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

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

    @Override
    protected BlockState updateShape(
        BlockState state,
        LevelReader level,
        ScheduledTickAccess scheduledTickAccess,
        BlockPos pos,
        Direction direction,
        BlockPos neighborPos,
        BlockState neighborState,
        RandomSource random
    ) {
        if (state.getValue(WATERLOGGED)) {
            scheduledTickAccess.scheduleTick(pos, Fluids.WATER, Fluids.WATER.getTickDelay(level));
        }

        return getConnectedDirection(state).getOpposite() == direction && !state.canSurvive(level, pos)
            ? Blocks.AIR.defaultBlockState()
            : super.updateShape(state, level, scheduledTickAccess, pos, direction, neighborPos, neighborState, random);
    }

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

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