path: root/src/main/java/lv/enes/mc/eris_alchemy/EMC.java

package lv.enes.mc.eris_alchemy;

import jakarta.annotation.Nullable;
import lv.enes.mc.eris_alchemy.utils.*;
import lv.enes.mc.eris_alchemy.utils.ItemUtils;
import net.minecraft.core.RegistryAccess;
import net.minecraft.core.registries.BuiltInRegistries;
import net.minecraft.tags.BlockTags;
import net.minecraft.tags.ItemTags;
import net.minecraft.tags.TagKey;
import net.minecraft.world.item.*;
import net.minecraft.world.item.crafting.Ingredient;
import net.minecraft.world.item.crafting.Recipe;
import net.minecraft.world.level.ItemLike;
import net.minecraft.world.level.Level;
import net.minecraft.world.level.block.Block;
import vazkii.patchouli.common.item.PatchouliItems;

import java.text.DecimalFormat;
import java.util.*;
import java.util.stream.Stream;

public class EMC {
	private record SimplifiedRecipe(ItemStack output, List<ItemStack> remainder, List<Ingredient> inputs) {
		public SimplifiedRecipe(ItemLike output, Ingredient... inputs) {
			this(new ItemStack(output), List.of(), List.of(inputs));
		}

		public SimplifiedRecipe(ItemLike output, ItemLike... inputs) {
			this(new ItemStack(output), List.of(), Arrays.stream(inputs).map(Ingredient::of).toList());
		}

		public SimplifiedRecipe(ItemLike output, ItemStack... inputs) {
			this(new ItemStack(output), List.of(), Arrays.stream(inputs).map(Ingredient::of).toList());
		}

		public SimplifiedRecipe(ItemLike output, List<ItemStack> remainder, ItemLike... inputs) {
			this(new ItemStack(output), remainder, Arrays.stream(inputs).map(Ingredient::of).toList());
		}

		public SimplifiedRecipe(ItemStack output, ItemLike... inputs) {
			this(output, List.of(), Arrays.stream(inputs).map(Ingredient::of).toList());
		}

		public SimplifiedRecipe(ItemStack output, ItemStack... inputs) {
			this(output, List.of(), Arrays.stream(inputs).map(Ingredient::of).toList());
		}

		public SimplifiedRecipe(Recipe<?> recipe, RegistryAccess registryAccess) {
			this(
					RecipeUtils.getOutput(recipe, registryAccess),
					List.of(), // TODO:
					RecipeUtils.getIngredients(recipe).stream().filter(ingredient -> !ingredient.isEmpty()).toList()
			);
		}
	}

	private static final Map<Item, Double> ITEM_COMMON_MAP = new HashMap<>();
	private static final Map<TagKey<Item>, Double> ITEM_TAG_COMMON_MAP = new HashMap<>();
	private static final Map<TagKey<Block>, Double> BLOCK_TAG_COMMON_MAP = new HashMap<>();
	private static final List<SimplifiedRecipe> FAKE_RECIPES = new ArrayList<>();

	private static final EMC defaultInstance = new EMC(null);
	private static final Map<Level, EMC> instances = Collections.synchronizedMap(new WeakHashMap<>());

	private static final DecimalFormat formatter = new DecimalFormat("0");
	static {
		formatter.setMaximumFractionDigits(1);
	}

	public static EMC getInstance(Level world) {
		if (world == null) {
			return defaultInstance;
		}

		if (instances.containsKey(world)) {
			return instances.get(world);
		}

		var instance = new EMC(world);
		instances.put(world, instance);
		return instance;
	}

	public static String formatEmc(double value) {
		return formatter.format(value);
	}

	private final Map<Item, Double> data;

	private EMC(@Nullable Level world) {
		data = Collections.synchronizedMap(new HashMap<>(ITEM_COMMON_MAP));
		ITEM_TAG_COMMON_MAP.forEach(
				(tag, emcValue) -> BuiltInRegistries.ITEM
						.getTagOrEmpty(tag)
						.forEach(holder -> data.putIfAbsent(holder.value(), emcValue))
		);
		BLOCK_TAG_COMMON_MAP.forEach(
				(tag, emcValue) -> BuiltInRegistries.BLOCK
						.getTagOrEmpty(tag)
						.forEach(holder -> data.putIfAbsent(holder.value().asItem(), emcValue))
		);

		ErisAlchemy.LOGGER.info("Calculating EMC values...");
		var recipes = getRecipes(world);
		var configured = new HashSet<>(data.keySet());
		BuiltInRegistries.ITEM.forEach(item -> {
			configEmc(recipes, configured, item);
			if (world != null && !data.containsKey(item)) {
				ErisAlchemy.LOGGER.warn("No EMC value for '{}' known", item);
			}
		});
	}

	public OptionalDouble get(ItemStack stack) {
		if (stack.isEmpty()) {
			return OptionalDouble.empty();
		}

		var item = stack.getItem();
		var value = data.get(item);
		if (value == null || value <= 0) {
			return OptionalDouble.empty();
		}

		EmcStorage storage = null;
		if (item instanceof EmcStorage emcStorage) {
			storage = emcStorage;
		} else if (item instanceof BlockItem blockItem) {
			if (blockItem.getBlock() instanceof EmcStorage emcStorage) {
				storage = emcStorage;
			}
		}

		if (storage != null) {
			value += storage.getStoredEmc(stack);
		}

		return OptionalDouble.of(value);
	}

	private List<SimplifiedRecipe> getRecipes(@Nullable Level world) {
		Stream<SimplifiedRecipe> recipes = Stream.concat(
				FAKE_RECIPES.stream(),
				AxeUtils.getStrippables()
						.entrySet()
						.stream()
						.map(entry -> new SimplifiedRecipe(entry.getValue(), Ingredient.of(entry.getKey())))
		);

		if (world != null) {
			recipes = Stream.concat(
					recipes,
					world.getRecipeManager()
							.getRecipes()
							.stream()
							.map(recipe -> new SimplifiedRecipe(recipe, world.registryAccess()))
			);
		}

		return recipes.toList();
	}

	private OptionalDouble configEmc(List<SimplifiedRecipe> recipes, Set<Item> configured, Item item) {
		var res = get(item.getDefaultInstance());
		if (res.isPresent() || configured.contains(item)) {
			return res;
		}

		configured.add(item);

		res = recipes.stream()
				.filter(recipe -> recipe.output.is(item))
				.map(recipe -> calculateEmcForRecipe(recipes, configured, recipe))
				.filter(OptionalDouble::isPresent)
				.mapToDouble(OptionalDouble::getAsDouble)
				.average();
		res.ifPresent(emc -> data.put(item, emc));
		if (res.isPresent() && res.getAsDouble() <= 0) {
			res = OptionalDouble.empty();
		}
		return res;
	}

	private OptionalDouble calculateEmcForRecipe(
			List<SimplifiedRecipe> recipes,
			Set<Item> configured,
			SimplifiedRecipe recipe
	) {
		try {
			if (recipe.inputs.isEmpty()) {
				return OptionalDouble.empty();
			}

			var inputEmc = recipe.inputs
					.stream()
					.map(ingredient -> calculateEmcForIngredient(recipes, configured, ingredient))
					.mapToDouble(OptionalDouble::orElseThrow)
					.sum();

			if (inputEmc <= 0) {
				return OptionalDouble.empty();
			}

			var remainderEmc = recipe.remainder
					.stream()
					.map(remainder -> configEmc(recipes, configured, remainder.getItem()))
					.mapToDouble(OptionalDouble::orElseThrow)
					.sum();

			if (remainderEmc > inputEmc) {
				ErisAlchemy.LOGGER.warn("Recipe generating {} creates too much EMC out of thin air!", recipe.output);
				return OptionalDouble.empty();
			} else if (remainderEmc < 0) {
				return OptionalDouble.empty();
			}

			var outputDivisor = (double) recipe.output.getCount();

			return OptionalDouble.of((inputEmc - remainderEmc) / outputDivisor);
		} catch (NoSuchElementException e) {
			return OptionalDouble.empty();
		}
	}

	private OptionalDouble calculateEmcForIngredient(
			List<SimplifiedRecipe> recipes,
			Set<Item> configured,
			Ingredient ingredient
	) {
		return Arrays.stream(ingredient.getItems())
				.map(stack -> configEmc(recipes, configured, stack.getItem()).stream()
						.map(x -> x * stack.getCount())
						.findFirst())
				.filter(OptionalDouble::isPresent)
				.mapToDouble(OptionalDouble::getAsDouble)
				.filter(x -> x > 0)
				.average();
	}

	static {
		ITEM_COMMON_MAP.putAll(Map.<Item, Double>ofEntries(
				Map.entry(Items.AIR, -1.0),
				Map.entry(Items.AMETHYST_CLUSTER, -1.0),
				Map.entry(Items.AMETHYST_SHARD, 1024.0),
				Map.entry(Items.ANCIENT_DEBRIS, -1.0),
				Map.entry(Items.APPLE, 128.0),
				Map.entry(Items.BAMBOO, 2.0),
				Map.entry(Items.BARRIER, -1.0),
				Map.entry(Items.BEDROCK, -1.0),
				Map.entry(Items.BEEF, 64.0),
				Map.entry(Items.BEETROOT, 24.0),
				Map.entry(Items.BEETROOT_SEEDS, 16.0),
				Map.entry(Items.BIG_DRIPLEAF, 1.0),
				Map.entry(Items.BLAZE_ROD, 1536.0),
				Map.entry(Items.BONE, 96.0),
				Map.entry(Items.BROWN_MUSHROOM, 32.0),
				Map.entry(Items.BROWN_MUSHROOM_BLOCK, -1.0),
				Map.entry(Items.BUDDING_AMETHYST, -1.0),
				Map.entry(Items.BUNDLE, -1.0),
				Map.entry(Items.CACTUS, 8.0),
				Map.entry(Items.CARROT, 24.0),
				Map.entry(Items.CALCITE, 1.0),
				Map.entry(Items.CHAIN_COMMAND_BLOCK, -1.0),
				Map.entry(Items.CHICKEN, 64.0),
				Map.entry(Items.CHORUS_FLOWER, 32.0),
				Map.entry(Items.CHORUS_FRUIT, 32.0),
				Map.entry(Items.CHORUS_PLANT, 24.0),
				Map.entry(Items.CLAY_BALL, 64.0),
				Map.entry(Items.COAL, 128.0),
				Map.entry(Items.COBWEB, 12.0),
				Map.entry(Items.COBBLESTONE, 1.0),
				Map.entry(Items.COBBLED_DEEPSLATE, 1.0),
				Map.entry(Items.COCOA_BEANS, 8.0),
				Map.entry(Items.COMMAND_BLOCK, -1.0),
				Map.entry(Items.COMMAND_BLOCK_MINECART, -1.0),
				Map.entry(Items.COPPER_INGOT, 85.0),
				Map.entry(Items.CREEPER_HEAD, 34816.0),
				Map.entry(Items.CRIMSON_FUNGUS, 24.0),
				Map.entry(Items.CRIMSON_ROOTS, 1.0),
				Map.entry(Items.CRYING_OBSIDIAN, 64.0),
				Map.entry(Items.DEAD_BUSH, 1.0),
				Map.entry(Items.DEBUG_STICK, -1.0),
				Map.entry(Items.DIAMOND, 8192.0),
				Map.entry(Items.DIRT_PATH, 1.0),
				Map.entry(Items.DRAGON_BREATH, 34816.0),
				Map.entry(Items.DRAGON_EGG, 139264.0),
				Map.entry(Items.DRAGON_HEAD, 34816.0),
				Map.entry(Items.ECHO_SHARD, 128.0),
				Map.entry(Items.EGG, 32.0),
				Map.entry(Items.ELYTRA, 8196.0),
				Map.entry(Items.EMERALD, 1024.0),
				Map.entry(Items.ENCHANTED_BOOK, -1.0),
				Map.entry(Items.END_PORTAL_FRAME, -1.0),
				Map.entry(Items.END_STONE, 1.0),
				Map.entry(Items.ENDER_PEARL, 1024.0),
				Map.entry(Items.EXPERIENCE_BOTTLE, -1.0),
				Map.entry(Items.FARMLAND, -1.0),
				Map.entry(Items.FEATHER, 48.0),
				Map.entry(Items.FERN, 1.0),
				Map.entry(Items.FIREWORK_STAR, -1.0),
				Map.entry(Items.FLINT, 4.0),
				Map.entry(Items.FROGSPAWN, -1.0),
				Map.entry(Items.GHAST_TEAR, 4096.0),
				Map.entry(Items.GLOW_BERRIES, 8.0),
				Map.entry(Items.GLOW_LICHEN, 8.0),
				Map.entry(Items.GLOWSTONE_DUST, 384.0),
				Map.entry(Items.GOAT_HORN, 32.0),
				Map.entry(Items.GOLD_INGOT, 2048.0),
				Map.entry(Items.GOLD_NUGGET, 2048.0/9),
				Map.entry(Items.GRASS, 1.0),
				Map.entry(Items.GRAVEL, 4.0),
				Map.entry(Items.GUNPOWDER, 192.0),
				Map.entry(Items.HANGING_ROOTS, 1.0),
				Map.entry(Items.HEART_OF_THE_SEA, 4096.0),
				Map.entry(Items.HONEYCOMB, 24.0),
				Map.entry(Items.ICE, 1.0),
				Map.entry(Items.INFESTED_CHISELED_STONE_BRICKS, -1.0),
				Map.entry(Items.INFESTED_COBBLESTONE, -1.0),
				Map.entry(Items.INFESTED_CRACKED_STONE_BRICKS, -1.0),
				Map.entry(Items.INFESTED_DEEPSLATE, -1.0),
				Map.entry(Items.INFESTED_MOSSY_STONE_BRICKS, -1.0),
				Map.entry(Items.INFESTED_STONE, -1.0),
				Map.entry(Items.INFESTED_STONE_BRICKS, -1.0),
				Map.entry(Items.IRON_INGOT, 256.0),
				Map.entry(Items.IRON_NUGGET, 256.0/9),
				Map.entry(Items.JIGSAW, -1.0),
				Map.entry(Items.KELP, 32.0),
				Map.entry(Items.KNOWLEDGE_BOOK, -1.0),
				Map.entry(Items.LAPIS_LAZULI, 864.0),
				Map.entry(Items.LARGE_AMETHYST_BUD, -1.0),
				Map.entry(Items.LARGE_FERN, 1.0),
				Map.entry(Items.LEATHER, 64.0),
				Map.entry(Items.LIGHT, -1.0),
				Map.entry(Items.LILY_PAD, 16.0),
				Map.entry(Items.LINGERING_POTION, -1.0),
				Map.entry(Items.MANGROVE_ROOTS, 1.0),
				Map.entry(Items.MEDIUM_AMETHYST_BUD, -1.0),
				Map.entry(Items.MELON_SLICE, 144.0),
				Map.entry(Items.MUD, 1.0),
				Map.entry(Items.MUSHROOM_STEM, -1.0),
				Map.entry(Items.MUTTON, 64.0),
				Map.entry(Items.NAME_TAG, -1.0),
				Map.entry(Items.NAUTILUS_SHELL, 64.0),
				Map.entry(Items.NETHER_QUARTZ_ORE, -1.0),
				Map.entry(Items.NETHER_SPROUTS, 1.0),
				Map.entry(Items.NETHER_STAR, 139264.0),
				Map.entry(Items.NETHER_WART, 24.0),
				Map.entry(Items.NETHERITE_SCRAP, 16384.0),
				Map.entry(Items.OBSIDIAN, 64.0),
				Map.entry(Items.PHANTOM_MEMBRANE, 96.0),
				Map.entry(Items.PIGLIN_HEAD, 34816.0),
				Map.entry(Items.PITCHER_POD, 8.0),
				Map.entry(Items.PLAYER_HEAD, 34816.0),
				Map.entry(Items.POINTED_DRIPSTONE, 0.25),
				Map.entry(Items.PORKCHOP, 64.0),
				Map.entry(Items.POTATO, 24.0),
				Map.entry(Items.POTION, -1.0),
				Map.entry(Items.PRISMARINE_CRYSTALS, 384.0),
				Map.entry(Items.PRISMARINE_SHARD, 0.25),
				Map.entry(Items.PUMPKIN, 144.0),
				Map.entry(Items.QUARTZ, 64.0),
				Map.entry(Items.RABBIT, 64.0),
				Map.entry(Items.RABBIT_HIDE, 64.0),
				Map.entry(Items.RAW_COPPER, -1.0),
				Map.entry(Items.RAW_COPPER_BLOCK, -1.0),
				Map.entry(Items.RAW_GOLD, -1.0),
				Map.entry(Items.RAW_GOLD_BLOCK, -1.0),
				Map.entry(Items.RAW_IRON, -1.0),
				Map.entry(Items.RAW_IRON_BLOCK, -1.0),
				Map.entry(Items.RED_MUSHROOM, 32.0),
				Map.entry(Items.RED_MUSHROOM_BLOCK, -1.0),
				Map.entry(Items.REDSTONE, 64.0),
				Map.entry(Items.REINFORCED_DEEPSLATE, -1.0),
				Map.entry(Items.REPEATING_COMMAND_BLOCK, -1.0),
				Map.entry(Items.ROTTEN_FLESH, 24.0),
				Map.entry(Items.SADDLE, 192.0),
				Map.entry(Items.SCULK, 1.0),
				Map.entry(Items.SCULK_CATALYST, 16.0),
				Map.entry(Items.SCULK_SENSOR, 32.0),
				Map.entry(Items.SCULK_SHRIEKER, 16.0),
				Map.entry(Items.SCULK_VEIN, 1.0),
				Map.entry(Items.SCUTE, 32.0),
				Map.entry(Items.SEA_PICKLE, 1.0),
				Map.entry(Items.SEAGRASS, 1.0),
				Map.entry(Items.SHULKER_SHELL, 256.0),
				Map.entry(Items.SKELETON_SKULL, 34816.0),
				Map.entry(Items.SLIME_BALL, 24.0),
				Map.entry(Items.SMALL_AMETHYST_BUD, -1.0),
				Map.entry(Items.SMALL_DRIPLEAF, 1.0),
				Map.entry(Items.SNIFFER_EGG, 32.0),
				Map.entry(Items.SNOWBALL, 1.0),
				Map.entry(Items.SOUL_SAND, 49.0),
				Map.entry(Items.SOUL_SOIL, 49.0),
				Map.entry(Items.SPAWNER, -1.0),
				Map.entry(Items.SPIDER_EYE, 128.0),
				Map.entry(Items.SPLASH_POTION, -1.0),
				Map.entry(Items.SPONGE, 48.0),
				Map.entry(Items.SPORE_BLOSSOM, 1.0),
				Map.entry(Items.STICK, 4.0),
				Map.entry(Items.STRING, 12.0),
				Map.entry(Items.STRUCTURE_BLOCK, -1.0),
				Map.entry(Items.STRUCTURE_VOID, -1.0),
				Map.entry(Items.SUGAR_CANE, 32.0),
				Map.entry(Items.SUSPICIOUS_GRAVEL, 4.0),
				Map.entry(Items.SWEET_BERRIES, 8.0),
				Map.entry(Items.TALL_GRASS, 1.0),
				Map.entry(Items.TIPPED_ARROW, -1.0),
				Map.entry(Items.TORCHFLOWER_SEEDS, 8.0),
				Map.entry(Items.TOTEM_OF_UNDYING, 4096.0),
				Map.entry(Items.TURTLE_EGG, 32.0),
				Map.entry(Items.TWISTING_VINES, 8.0),
				Map.entry(Items.VINE, 8.0),
				Map.entry(Items.WARPED_FUNGUS, 24.0),
				Map.entry(Items.WARPED_ROOTS, 1.0),
				Map.entry(Items.WARPED_WART_BLOCK, 1.0),
				Map.entry(Items.WEEPING_VINES, 8.0),
				Map.entry(Items.WET_SPONGE, 48.0),
				Map.entry(Items.WHEAT, 24.0),
				Map.entry(Items.WHEAT_SEEDS, 16.0),
				Map.entry(Items.WITHER_SKELETON_SKULL, 34816.0),
				Map.entry(Items.WRITTEN_BOOK, -1.0),
				Map.entry(Items.ZOMBIE_HEAD, 34816.0),

				Map.entry(PatchouliItems.BOOK, -1.0)
		));

		SpawnEggItem.eggs().forEach(spawnEgg -> ITEM_COMMON_MAP.put(spawnEgg, -1.0));

		CoralUtils.streamAllCoralBlocks().forEach(block -> ITEM_COMMON_MAP.put(block.asItem(), 1.0));
		CoralUtils.streamAllDeadCoralBlocks().forEach(block -> ITEM_COMMON_MAP.put(block.asItem(), 1.0));
		CoralUtils.streamAllCorals().forEach(block -> ITEM_COMMON_MAP.put(block.asItem(), 1.0));
		CoralUtils.streamAllDeadCorals().forEach(block -> ITEM_COMMON_MAP.put(block.asItem(), 1.0));

		BLOCK_TAG_COMMON_MAP.putAll(Map.ofEntries(
				Map.entry(BlockTags.BASE_STONE_NETHER, 1.0),
				Map.entry(BlockTags.BASE_STONE_OVERWORLD, 1.0),
				Map.entry(BlockTags.NYLIUM, 1.0)
		));

		ITEM_TAG_COMMON_MAP.putAll(Map.ofEntries(
				Map.entry(ItemTags.COAL_ORES, -1.0),
				Map.entry(ItemTags.COPPER_ORES, -1.0),
				Map.entry(ItemTags.DIAMOND_ORES, -1.0),
				Map.entry(ItemTags.DIRT, 1.0),
				Map.entry(ItemTags.MUSIC_DISCS, 4096.0),
				Map.entry(ItemTags.EMERALD_ORES, -1.0),
				Map.entry(ItemTags.FISHES, 64.0),
				Map.entry(ItemTags.FLOWERS, 16.0),
				Map.entry(ItemTags.GOLD_ORES, -1.0),
				Map.entry(ItemTags.IRON_ORES, -1.0),
				Map.entry(ItemTags.LAPIS_ORES, -1.0),
				Map.entry(ItemTags.LEAVES, 1.0),
				Map.entry(ItemTags.LOGS, 32.0),
				Map.entry(ItemTags.REDSTONE_ORES, -1.0),
				Map.entry(ItemTags.SAND, 1.0),
				Map.entry(ItemTags.SAPLINGS, 32.0),
				Map.entry(ItemTags.WOOL, 48.0)
		));

		FAKE_RECIPES.addAll(List.of(
				// more oxidised coppers are worth less
				new SimplifiedRecipe(new ItemStack(Items.EXPOSED_COPPER, 4), new ItemStack(Items.COPPER_BLOCK, 3)),
				new SimplifiedRecipe(new ItemStack(Items.WEATHERED_COPPER, 4), new ItemStack(Items.COPPER_BLOCK, 2)),
				new SimplifiedRecipe(new ItemStack(Items.OXIDIZED_COPPER, 4), new ItemStack(Items.COPPER_BLOCK, 1)),

				new SimplifiedRecipe(new ItemStack(Items.WAXED_EXPOSED_COPPER, 4), new ItemStack(Items.WAXED_COPPER_BLOCK, 3)),
				new SimplifiedRecipe(new ItemStack(Items.WAXED_WEATHERED_COPPER, 4), new ItemStack(Items.WAXED_COPPER_BLOCK, 2)),
				new SimplifiedRecipe(new ItemStack(Items.WAXED_OXIDIZED_COPPER, 4), new ItemStack(Items.WAXED_COPPER_BLOCK, 1)),

				// more damaged anvils are worth less
				new SimplifiedRecipe(new ItemStack(Items.CHIPPED_ANVIL, 3), new ItemStack(Items.ANVIL, 2)),
				new SimplifiedRecipe(new ItemStack(Items.DAMAGED_ANVIL, 3), new ItemStack(Items.ANVIL, 1)),

				// old oak slabs are the same value as modern ones
				new SimplifiedRecipe(Items.PETRIFIED_OAK_SLAB, Items.OAK_SLAB),

				// chainmail armour is worth the same as normal iron armor
				new SimplifiedRecipe(Items.CHAINMAIL_HELMET, Items.IRON_HELMET),
				new SimplifiedRecipe(Items.CHAINMAIL_CHESTPLATE, Items.IRON_CHESTPLATE),
				new SimplifiedRecipe(Items.CHAINMAIL_LEGGINGS, Items.IRON_LEGGINGS),
				new SimplifiedRecipe(Items.CHAINMAIL_BOOTS, Items.IRON_BOOTS),

				// enchanted golden apple is worth uhh 16 times the non-enchanted one :3
				new SimplifiedRecipe(Items.ENCHANTED_GOLDEN_APPLE, new ItemStack(Items.GOLDEN_APPLE, 16)),

				// carving a pumpkin with shears
				new SimplifiedRecipe(Items.CARVED_PUMPKIN, List.of(new ItemStack(Items.PUMPKIN_SEEDS, 4)), Items.PUMPKIN),

				// gathering honey
				new SimplifiedRecipe(Items.HONEY_BOTTLE, Items.HONEYCOMB, Items.GLASS_BOTTLE),

				// smithing template duplicating recipes but -1 templates on both sides
				new SimplifiedRecipe(Items.COAST_ARMOR_TRIM_SMITHING_TEMPLATE, new ItemStack(Items.DIAMOND, 7), new ItemStack(Items.COBBLESTONE)),
				new SimplifiedRecipe(Items.DUNE_ARMOR_TRIM_SMITHING_TEMPLATE, new ItemStack(Items.DIAMOND, 7), new ItemStack(Items.SANDSTONE)),
				new SimplifiedRecipe(Items.EYE_ARMOR_TRIM_SMITHING_TEMPLATE, new ItemStack(Items.DIAMOND, 7), new ItemStack(Items.END_STONE)),
				new SimplifiedRecipe(Items.HOST_ARMOR_TRIM_SMITHING_TEMPLATE, new ItemStack(Items.DIAMOND, 7), new ItemStack(Items.TERRACOTTA)),
				new SimplifiedRecipe(Items.NETHERITE_UPGRADE_SMITHING_TEMPLATE, new ItemStack(Items.DIAMOND, 7), new ItemStack(Items.NETHERRACK)),
				new SimplifiedRecipe(Items.RAISER_ARMOR_TRIM_SMITHING_TEMPLATE, new ItemStack(Items.DIAMOND, 7), new ItemStack(Items.TERRACOTTA)),
				new SimplifiedRecipe(Items.RIB_ARMOR_TRIM_SMITHING_TEMPLATE, new ItemStack(Items.DIAMOND, 7), new ItemStack(Items.NETHERRACK)),
				new SimplifiedRecipe(Items.SENTRY_ARMOR_TRIM_SMITHING_TEMPLATE, new ItemStack(Items.DIAMOND, 7), new ItemStack(Items.COBBLESTONE)),
				new SimplifiedRecipe(Items.SHAPER_ARMOR_TRIM_SMITHING_TEMPLATE, new ItemStack(Items.DIAMOND, 7), new ItemStack(Items.TERRACOTTA)),
				new SimplifiedRecipe(Items.SILENCE_ARMOR_TRIM_SMITHING_TEMPLATE, new ItemStack(Items.DIAMOND, 7), new ItemStack(Items.COBBLED_DEEPSLATE)),
				new SimplifiedRecipe(Items.SNOUT_ARMOR_TRIM_SMITHING_TEMPLATE, new ItemStack(Items.DIAMOND, 7), new ItemStack(Items.BLACKSTONE)),
				new SimplifiedRecipe(Items.SPIRE_ARMOR_TRIM_SMITHING_TEMPLATE, new ItemStack(Items.DIAMOND, 7), new ItemStack(Items.PURPUR_BLOCK)),
				new SimplifiedRecipe(Items.TIDE_ARMOR_TRIM_SMITHING_TEMPLATE, new ItemStack(Items.DIAMOND, 7), new ItemStack(Items.PRISMARINE)),
				new SimplifiedRecipe(Items.VEX_ARMOR_TRIM_SMITHING_TEMPLATE, new ItemStack(Items.DIAMOND, 7), new ItemStack(Items.COBBLESTONE)),
				new SimplifiedRecipe(Items.WARD_ARMOR_TRIM_SMITHING_TEMPLATE, new ItemStack(Items.DIAMOND, 7), new ItemStack(Items.COBBLED_DEEPSLATE)),
				new SimplifiedRecipe(Items.WAYFINDER_ARMOR_TRIM_SMITHING_TEMPLATE, new ItemStack(Items.DIAMOND, 7), new ItemStack(Items.TERRACOTTA)),
				new SimplifiedRecipe(Items.WILD_ARMOR_TRIM_SMITHING_TEMPLATE, new ItemStack(Items.DIAMOND, 7), new ItemStack(Items.MOSSY_COBBLESTONE)),

				// water bucket = bucket + water, water assumed to be same value as cobblestone
				new SimplifiedRecipe(Items.WATER_BUCKET, Items.BUCKET, Items.COBBLESTONE),

				// lava bucket = bucket + lava, lava assumed to be same value as obsidian
				new SimplifiedRecipe(Items.LAVA_BUCKET, Items.BUCKET, Items.OBSIDIAN),

				// powder snow bucket = bucket + snow
				new SimplifiedRecipe(Items.POWDER_SNOW_BUCKET, Items.BUCKET, Items.SNOW_BLOCK),

				// milk bucket = bucket + milk, milk assumed to be same value as wheat
				new SimplifiedRecipe(Items.MILK_BUCKET, Items.BUCKET, Items.WHEAT),

				// [fish] bucket = bucket + [fish]
				new SimplifiedRecipe(Items.COD_BUCKET, Items.BUCKET, Items.COD),
				new SimplifiedRecipe(Items.PUFFERFISH_BUCKET, Items.BUCKET, Items.PUFFERFISH),
				new SimplifiedRecipe(Items.SALMON_BUCKET, Items.BUCKET, Items.SALMON),
				new SimplifiedRecipe(Items.TROPICAL_FISH_BUCKET, Items.BUCKET, Items.TROPICAL_FISH),

				// yep
				new SimplifiedRecipe(Items.AXOLOTL_BUCKET, Items.TROPICAL_FISH_BUCKET),
				new SimplifiedRecipe(Items.TADPOLE_BUCKET, Items.AXOLOTL_BUCKET),

				// dye value is the canon
				new SimplifiedRecipe(Items.INK_SAC, Items.BLACK_DYE),

				// disc value is the canon
				new SimplifiedRecipe(new ItemStack(Items.DISC_FRAGMENT_5, 9), Items.MUSIC_DISC_5),

				// glowing ink sac is more expensive than an ink sac
				new SimplifiedRecipe(Items.GLOW_INK_SAC, new ItemStack(Items.INK_SAC, 4)),

				// activated maps cost the same as unactivated ones
				new SimplifiedRecipe(Items.FILLED_MAP, Items.MAP),

				// poisonous potato costs less than a normal one
				new SimplifiedRecipe(new ItemStack(Items.POISONOUS_POTATO, 2), Items.POTATO),

				// rabbits foot costs more than rabbit meat
				new SimplifiedRecipe(Items.RABBIT_FOOT, new ItemStack(Items.RABBIT, 8)),

				// [X] horse armor == [X] leggings
				// wtf, why?  see how much leather is used by leather horse armor
				new SimplifiedRecipe(Items.IRON_HORSE_ARMOR, Items.IRON_LEGGINGS),
				new SimplifiedRecipe(Items.GOLDEN_HORSE_ARMOR, Items.GOLDEN_LEGGINGS),
				new SimplifiedRecipe(Items.DIAMOND_HORSE_ARMOR, Items.DIAMOND_LEGGINGS),

				// Trident = 1.5 * iron sword
				new SimplifiedRecipe(new ItemStack(Items.TRIDENT, 2), new ItemStack(Items.IRON_SWORD, 3)),

				// an actual recipe but it's special, minecraft:crafting_special_suspiciousstew
				new SimplifiedRecipe(Items.SUSPICIOUS_STEW, Items.BOWL, Items.BROWN_MUSHROOM, Items.RED_MUSHROOM, Items.POPPY),

				// obvious
				new SimplifiedRecipe(Items.GLOBE_BANNER_PATTERN, Items.CREEPER_BANNER_PATTERN),
				new SimplifiedRecipe(Items.PIGLIN_BANNER_PATTERN, Items.CREEPER_BANNER_PATTERN),

				// the vibes fit
				new SimplifiedRecipe(Items.BELL, Items.SPYGLASS),

				// light sources, shroomlight has no crafting uses but is brighter
				new SimplifiedRecipe(Items.SHROOMLIGHT, Items.GLOWSTONE),

				// bee nest = honeycomb block
				new SimplifiedRecipe(Items.BEE_NEST, new ItemStack(Items.HONEYCOMB, 9)),

				// gilded blackstone = blackstone with gold nuggets
				new SimplifiedRecipe(Items.GILDED_BLACKSTONE, new ItemStack(Items.BLACKSTONE), new ItemStack(Items.GOLD_NUGGET, 4)),

				// froglight = eaten magma cube
				new SimplifiedRecipe(Items.OCHRE_FROGLIGHT, Items.MAGMA_CREAM),
				new SimplifiedRecipe(Items.PEARLESCENT_FROGLIGHT, Items.MAGMA_CREAM),
				new SimplifiedRecipe(Items.VERDANT_FROGLIGHT, Items.MAGMA_CREAM)
		));

		// pot sherds can be replaced with bricks when making decorated pots
		ItemUtils.streamTag(ItemTags.DECORATED_POT_SHERDS).forEach(sherd -> FAKE_RECIPES.add(new SimplifiedRecipe(sherd, Items.BRICK)));

		for (var color : DyeColor.values()) {
			ITEM_COMMON_MAP.put(DyeUtils.getDye(color), 8.0);
			FAKE_RECIPES.addAll(List.of(
					// putting concrete powder in water
					new SimplifiedRecipe(DyeUtils.getConcrete(color), DyeUtils.getConcretePowder(color)),

					// an actual recipe but it's special, minecraft:crafting_special_shulkerboxcoloring
					new SimplifiedRecipe(DyeUtils.getShulkerBox(color), Items.SHULKER_BOX, DyeUtils.getDye(color))
			));
		}
	}
}