package net.minecraft.world.item;

import net.minecraft.core.BlockPos;
import net.minecraft.core.Direction;
import net.minecraft.core.dispenser.BlockSource;
import net.minecraft.core.dispenser.DefaultDispenseItemBehavior;
import net.minecraft.core.dispenser.DispenseItemBehavior;
import net.minecraft.server.level.ServerLevel;
import net.minecraft.tags.BlockTags;
import net.minecraft.world.InteractionResult;
import net.minecraft.world.entity.vehicle.AbstractMinecart;
import net.minecraft.world.item.context.UseOnContext;
import net.minecraft.world.level.Level;
import net.minecraft.world.level.block.BaseRailBlock;
import net.minecraft.world.level.block.DispenserBlock;
import net.minecraft.world.level.block.state.BlockState;
import net.minecraft.world.level.block.state.properties.RailShape;
import net.minecraft.world.level.gameevent.GameEvent;
import net.minecraft.world.phys.Vec3;

public class MinecartItem extends Item {
	private static final DispenseItemBehavior DISPENSE_ITEM_BEHAVIOR = new DefaultDispenseItemBehavior() {
		private final DefaultDispenseItemBehavior defaultDispenseItemBehavior = new DefaultDispenseItemBehavior();

		@Override
		public ItemStack execute(BlockSource blockSource, ItemStack item) {
			Direction direction = blockSource.state().getValue(DispenserBlock.FACING);
			ServerLevel serverLevel = blockSource.level();
			Vec3 vec3 = blockSource.center();
			double d = vec3.x() + direction.getStepX() * 1.125;
			double e = Math.floor(vec3.y()) + direction.getStepY();
			double f = vec3.z() + direction.getStepZ() * 1.125;
			BlockPos blockPos = blockSource.pos().relative(direction);
			BlockState blockState = serverLevel.getBlockState(blockPos);
			RailShape railShape = blockState.getBlock() instanceof BaseRailBlock
				? blockState.getValue(((BaseRailBlock)blockState.getBlock()).getShapeProperty())
				: RailShape.NORTH_SOUTH;
			double g;
			if (blockState.is(BlockTags.RAILS)) {
				if (railShape.isAscending()) {
					g = 0.6;
				} else {
					g = 0.1;
				}
			} else {
				if (!blockState.isAir() || !serverLevel.getBlockState(blockPos.below()).is(BlockTags.RAILS)) {
					return this.defaultDispenseItemBehavior.dispense(blockSource, item);
				}

				BlockState blockState2 = serverLevel.getBlockState(blockPos.below());
				RailShape railShape2 = blockState2.getBlock() instanceof BaseRailBlock
					? blockState2.getValue(((BaseRailBlock)blockState2.getBlock()).getShapeProperty())
					: RailShape.NORTH_SOUTH;
				if (direction != Direction.DOWN && railShape2.isAscending()) {
					g = -0.4;
				} else {
					g = -0.9;
				}
			}

			AbstractMinecart abstractMinecart = AbstractMinecart.createMinecart(serverLevel, d, e + g, f, ((MinecartItem)item.getItem()).type, item, null);
			serverLevel.addFreshEntity(abstractMinecart);
			item.shrink(1);
			return item;
		}

		@Override
		protected void playSound(BlockSource blockSource) {
			blockSource.level().levelEvent(1000, blockSource.pos(), 0);
		}
	};
	final AbstractMinecart.Type type;

	public MinecartItem(AbstractMinecart.Type type, Item.Properties properties) {
		super(properties);
		this.type = type;
		DispenserBlock.registerBehavior(this, DISPENSE_ITEM_BEHAVIOR);
	}

	@Override
	public InteractionResult useOn(UseOnContext context) {
		Level level = context.getLevel();
		BlockPos blockPos = context.getClickedPos();
		BlockState blockState = level.getBlockState(blockPos);
		if (!blockState.is(BlockTags.RAILS)) {
			return InteractionResult.FAIL;
		} else {
			ItemStack itemStack = context.getItemInHand();
			if (level instanceof ServerLevel serverLevel) {
				RailShape railShape = blockState.getBlock() instanceof BaseRailBlock
					? blockState.getValue(((BaseRailBlock)blockState.getBlock()).getShapeProperty())
					: RailShape.NORTH_SOUTH;
				double d = 0.0;
				if (railShape.isAscending()) {
					d = 0.5;
				}

				AbstractMinecart abstractMinecart = AbstractMinecart.createMinecart(
					serverLevel, blockPos.getX() + 0.5, blockPos.getY() + 0.0625 + d, blockPos.getZ() + 0.5, this.type, itemStack, context.getPlayer()
				);
				serverLevel.addFreshEntity(abstractMinecart);
				serverLevel.gameEvent(GameEvent.ENTITY_PLACE, blockPos, GameEvent.Context.of(context.getPlayer(), serverLevel.getBlockState(blockPos.below())));
			}

			itemStack.shrink(1);
			return InteractionResult.sidedSuccess(level.isClientSide);
		}
	}
}