package net.minecraft.util.datafix.fixes;

import com.google.common.collect.ImmutableSet;
import com.mojang.datafixers.DSL;
import com.mojang.datafixers.DataFix;
import com.mojang.datafixers.DataFixUtils;
import com.mojang.datafixers.TypeRewriteRule;
import com.mojang.datafixers.schemas.Schema;
import com.mojang.serialization.Dynamic;
import java.util.Set;

public class WallPropertyFix extends DataFix {
	private static final Set<String> WALL_BLOCKS = ImmutableSet.of(
		"minecraft:andesite_wall",
		"minecraft:brick_wall",
		"minecraft:cobblestone_wall",
		"minecraft:diorite_wall",
		"minecraft:end_stone_brick_wall",
		"minecraft:granite_wall",
		"minecraft:mossy_cobblestone_wall",
		"minecraft:mossy_stone_brick_wall",
		"minecraft:nether_brick_wall",
		"minecraft:prismarine_wall",
		"minecraft:red_nether_brick_wall",
		"minecraft:red_sandstone_wall",
		"minecraft:sandstone_wall",
		"minecraft:stone_brick_wall"
	);

	public WallPropertyFix(Schema outputSchema, boolean changesType) {
		super(outputSchema, changesType);
	}

	@Override
	public TypeRewriteRule makeRule() {
		return this.fixTypeEverywhereTyped(
			"WallPropertyFix",
			this.getInputSchema().getType(References.BLOCK_STATE),
			typed -> typed.update(DSL.remainderFinder(), WallPropertyFix::upgradeBlockStateTag)
		);
	}

	private static String mapProperty(String property) {
		return "true".equals(property) ? "low" : "none";
	}

	private static <T> Dynamic<T> fixWallProperty(Dynamic<T> dynamic, String key) {
		return dynamic.update(
			key, dynamicx -> DataFixUtils.orElse(dynamicx.asString().result().map(WallPropertyFix::mapProperty).map(dynamicx::createString), dynamicx)
		);
	}

	private static <T> Dynamic<T> upgradeBlockStateTag(Dynamic<T> dynamic) {
		boolean bl = dynamic.get("Name").asString().result().filter(WALL_BLOCKS::contains).isPresent();
		return !bl ? dynamic : dynamic.update("Properties", dynamicx -> {
			Dynamic<?> dynamic2 = fixWallProperty(dynamicx, "east");
			dynamic2 = fixWallProperty(dynamic2, "west");
			dynamic2 = fixWallProperty(dynamic2, "north");
			return fixWallProperty(dynamic2, "south");
		});
	}
}