package net.minecraft.util.datafix.fixes;

import com.mojang.datafixers.DSL;
import com.mojang.datafixers.DataFixUtils;
import com.mojang.datafixers.Typed;
import com.mojang.datafixers.schemas.Schema;
import com.mojang.serialization.Dynamic;
import java.util.Map;
import net.minecraft.util.datafix.ExtraDataFixUtils;

public class BannerPatternFormatFix extends NamedEntityFix {
	private static final Map<String, String> PATTERN_ID_MAP = Map.ofEntries(
		Map.entry("b", "minecraft:base"),
		Map.entry("bl", "minecraft:square_bottom_left"),
		Map.entry("br", "minecraft:square_bottom_right"),
		Map.entry("tl", "minecraft:square_top_left"),
		Map.entry("tr", "minecraft:square_top_right"),
		Map.entry("bs", "minecraft:stripe_bottom"),
		Map.entry("ts", "minecraft:stripe_top"),
		Map.entry("ls", "minecraft:stripe_left"),
		Map.entry("rs", "minecraft:stripe_right"),
		Map.entry("cs", "minecraft:stripe_center"),
		Map.entry("ms", "minecraft:stripe_middle"),
		Map.entry("drs", "minecraft:stripe_downright"),
		Map.entry("dls", "minecraft:stripe_downleft"),
		Map.entry("ss", "minecraft:small_stripes"),
		Map.entry("cr", "minecraft:cross"),
		Map.entry("sc", "minecraft:straight_cross"),
		Map.entry("bt", "minecraft:triangle_bottom"),
		Map.entry("tt", "minecraft:triangle_top"),
		Map.entry("bts", "minecraft:triangles_bottom"),
		Map.entry("tts", "minecraft:triangles_top"),
		Map.entry("ld", "minecraft:diagonal_left"),
		Map.entry("rd", "minecraft:diagonal_up_right"),
		Map.entry("lud", "minecraft:diagonal_up_left"),
		Map.entry("rud", "minecraft:diagonal_right"),
		Map.entry("mc", "minecraft:circle"),
		Map.entry("mr", "minecraft:rhombus"),
		Map.entry("vh", "minecraft:half_vertical"),
		Map.entry("hh", "minecraft:half_horizontal"),
		Map.entry("vhr", "minecraft:half_vertical_right"),
		Map.entry("hhb", "minecraft:half_horizontal_bottom"),
		Map.entry("bo", "minecraft:border"),
		Map.entry("cbo", "minecraft:curly_border"),
		Map.entry("gra", "minecraft:gradient"),
		Map.entry("gru", "minecraft:gradient_up"),
		Map.entry("bri", "minecraft:bricks"),
		Map.entry("glb", "minecraft:globe"),
		Map.entry("cre", "minecraft:creeper"),
		Map.entry("sku", "minecraft:skull"),
		Map.entry("flo", "minecraft:flower"),
		Map.entry("moj", "minecraft:mojang"),
		Map.entry("pig", "minecraft:piglin")
	);

	public BannerPatternFormatFix(Schema outputSchema) {
		super(outputSchema, false, "BannerPatternFormatFix", References.BLOCK_ENTITY, "minecraft:banner");
	}

	@Override
	protected Typed<?> fix(Typed<?> typed) {
		return typed.update(DSL.remainderFinder(), BannerPatternFormatFix::fixTag);
	}

	private static Dynamic<?> fixTag(Dynamic<?> tag) {
		return tag.renameAndFixField("Patterns", "patterns", dynamic -> dynamic.createList(dynamic.asStream().map(BannerPatternFormatFix::fixLayer)));
	}

	private static Dynamic<?> fixLayer(Dynamic<?> tag) {
		tag = tag.renameAndFixField(
			"Pattern",
			"pattern",
			dynamic -> DataFixUtils.orElse(
				dynamic.asString().map(string -> (String)PATTERN_ID_MAP.getOrDefault(string, string)).map(dynamic::createString).result(), dynamic
			)
		);
		tag = tag.set("color", tag.createString(ExtraDataFixUtils.dyeColorIdToName(tag.get("Color").asInt(0))));
		return tag.remove("Color");
	}
}