content: package org.allaymc.server.block.component;
  
  import org.allaymc.api.block.BlockBehavior;
  import org.allaymc.api.block.component.BlockBlockEntityHolderComponent;
  import org.allaymc.api.block.data.BlockFace;
  import org.allaymc.api.block.data.BlockTags;
  import org.allaymc.api.block.dto.Block;
  import org.allaymc.api.block.dto.PlayerInteractInfo;
  import org.allaymc.api.block.type.BlockState;
  import org.allaymc.api.block.type.BlockType;
  import org.allaymc.api.blockentity.interfaces.BlockEntityFlowerPot;
  import org.allaymc.api.container.ContainerTypes;
  import org.allaymc.api.item.ItemStack;
  import org.allaymc.api.item.type.ItemTypes;
  import org.allaymc.api.math.position.Position3i;
  import org.allaymc.api.world.Dimension;
  import org.allaymc.server.component.annotation.Dependency;
  import org.joml.Vector3ic;
  
  /**
   * @author Cdm2883
   */
  public class BlockFlowerPotBaseComponentImpl extends BlockBaseComponentImpl {
      @Dependency
      BlockBlockEntityHolderComponent<BlockEntityFlowerPot> blockEntityHolderComponent;
  
      public BlockFlowerPotBaseComponentImpl(BlockType<? extends BlockBehavior> blockType) {
          super(blockType);
      }
  
      @Override
      public void onNeighborUpdate(Block block, Block neighbor, BlockFace face) {
          super.onNeighborUpdate(block, neighbor, face);
          if (face == BlockFace.DOWN && !isValidWeighBlock(neighbor.getBlockState())) {
              block.breakBlock();
          }
      }
  
      @Override
      public boolean place(Dimension dimension, BlockState blockState, Vector3ic placeBlockPos, PlayerInteractInfo placementInfo) {
          if (placementInfo == null) {
              return dimension.setBlockState(placeBlockPos.x(), placeBlockPos.y(), placeBlockPos.z(), blockState);
          }
  
          var downBlock = dimension.getBlockState(placeBlockPos.x(), placeBlockPos.y() - 1, placeBlockPos.z());
          if (!isValidWeighBlock(downBlock)) {
              return false;
          }
  
          return dimension.setBlockState(placeBlockPos.x(), placeBlockPos.y(), placeBlockPos.z(), blockState, placementInfo);
      }
  
      private boolean isValidWeighBlock(BlockState block) {
          return block.getBlockStateData().collisionShape().isCenterFull(BlockFace.UP) &&
                 !block.getBlockType().hasBlockTag(BlockTags.TRAPDOORS);
      }
  
      @Override
      public boolean onInteract(ItemStack itemStack, Dimension dimension, PlayerInteractInfo interactInfo) {
          if (super.onInteract(itemStack, dimension, interactInfo)) {
              return true;
          }
  
          var player = interactInfo.player();
          if (player.isSneaking()) {
              return false;
          }
  
          var position = new Position3i(interactInfo.clickedBlockPos(), dimension);
          var flowerPot = blockEntityHolderComponent.getBlockEntity(position);
          var plant = flowerPot.getPlantItem();
  
          // Plants can only be pulled out when player is empty-handed.
          if (plant != null && itemStack.getItemType() == ItemTypes.AIR) {
              flowerPot.clearPlant();
              // When the flower is pulled, the item will place to the player's first empty slot instead of hand.
              // And the player needs to be empty-handed to pull out, there is no such thing as a failure.
              player.getContainer(ContainerTypes.INVENTORY).tryAddItem(plant);
              return true;
          } else if (plant == null && flowerPot.setPlantItem(itemStack)) {
              player.tryConsumeItemInHand();
              return true;
          }
  
          return false;
      }
  }
  