package net.minecraft.world.item;

import net.minecraft.core.BlockPos;
import net.minecraft.server.level.ServerLevel;
import net.minecraft.tags.BlockTags;
import net.minecraft.world.InteractionResult;
import net.minecraft.world.entity.Entity;
import net.minecraft.world.entity.EntitySpawnReason;
import net.minecraft.world.entity.EntityType;
import net.minecraft.world.entity.vehicle.minecart.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.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 final EntityType<? extends AbstractMinecart> type;

	public MinecartItem(final EntityType<? extends AbstractMinecart> type, final Item.Properties properties) {
		super(properties);
		this.type = type;
	}

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

			Vec3 spawnPos = new Vec3(pos.getX() + 0.5, pos.getY() + 0.0625 + offset, pos.getZ() + 0.5);
			AbstractMinecart cart = AbstractMinecart.createMinecart(
				level, spawnPos.x, spawnPos.y, spawnPos.z, this.type, EntitySpawnReason.DISPENSER, itemStack, context.getPlayer()
			);
			if (cart == null) {
				return InteractionResult.FAIL;
			} else {
				if (AbstractMinecart.useExperimentalMovement(level)) {
					for (Entity entity : level.getEntities(null, cart.getBoundingBox())) {
						if (entity instanceof AbstractMinecart) {
							return InteractionResult.FAIL;
						}
					}
				}

				if (level instanceof ServerLevel serverLevel) {
					serverLevel.addFreshEntity(cart);
					serverLevel.gameEvent(GameEvent.ENTITY_PLACE, pos, GameEvent.Context.of(context.getPlayer(), serverLevel.getBlockState(pos.below())));
				}

				itemStack.shrink(1);
				return InteractionResult.SUCCESS;
			}
		}
	}
}