package net.minecraft.client.renderer.item.properties.select;

import com.mojang.serialization.Codec;
import com.mojang.serialization.DataResult;
import com.mojang.serialization.MapCodec;
import java.util.List;
import net.minecraft.client.multiplayer.ClientLevel;
import net.minecraft.client.renderer.item.SelectItemModel;
import net.minecraft.core.component.DataComponentType;
import net.minecraft.core.registries.BuiltInRegistries;
import net.minecraft.world.entity.LivingEntity;
import net.minecraft.world.item.ItemDisplayContext;
import net.minecraft.world.item.ItemStack;
import org.jspecify.annotations.Nullable;

public record ComponentContents<T>(DataComponentType<T> componentType) implements SelectItemModelProperty<T> {
	private static final SelectItemModelProperty.Type<? extends ComponentContents<?>, ?> TYPE = createType();

	private static <T> SelectItemModelProperty.Type<ComponentContents<T>, T> createType() {
		Codec<? extends DataComponentType<?>> rawComponentCodec = BuiltInRegistries.DATA_COMPONENT_TYPE
			.byNameCodec()
			.validate(t -> t.isTransient() ? DataResult.error(() -> "Component can't be serialized") : DataResult.success(t));
		Codec<DataComponentType<T>> componentCodec = (Codec<DataComponentType<T>>)rawComponentCodec;
		MapCodec<SelectItemModel.UnbakedSwitch<ComponentContents<T>, T>> switchCodec = componentCodec.dispatchMap(
			"component",
			switchObject -> switchObject.property().componentType,
			componentType -> SelectItemModelProperty.Type.createCasesFieldCodec(componentType.codecOrThrow())
				.xmap(
					cases -> new SelectItemModel.UnbakedSwitch<>(new ComponentContents<>((DataComponentType<T>)componentType), (List<SelectItemModel.SwitchCase<T>>)cases),
					SelectItemModel.UnbakedSwitch::cases
				)
		);
		return new SelectItemModelProperty.Type<>(switchCodec);
	}

	public static <T> SelectItemModelProperty.Type<ComponentContents<T>, T> castType() {
		return (SelectItemModelProperty.Type<ComponentContents<T>, T>)TYPE;
	}

	@Override
	public @Nullable T get(
		final ItemStack itemStack, final @Nullable ClientLevel level, final @Nullable LivingEntity owner, final int seed, final ItemDisplayContext displayContext
	) {
		return (T)itemStack.get(this.componentType);
	}

	@Override
	public SelectItemModelProperty.Type<ComponentContents<T>, T> type() {
		return castType();
	}

	@Override
	public Codec<T> valueCodec() {
		return this.componentType.codecOrThrow();
	}
}