package net.minecraft.data.recipes;

import java.util.LinkedHashMap;
import java.util.Map;
import java.util.Optional;
import net.minecraft.advancements.Advancement;
import net.minecraft.advancements.AdvancementRewards;
import net.minecraft.advancements.Criterion;
import net.minecraft.advancements.AdvancementRequirements.Strategy;
import net.minecraft.advancements.critereon.RecipeUnlockedTrigger;
import net.minecraft.core.registries.Registries;
import net.minecraft.resources.ResourceKey;
import net.minecraft.resources.ResourceLocation;
import net.minecraft.world.item.Item;
import net.minecraft.world.item.crafting.Ingredient;
import net.minecraft.world.item.crafting.Recipe;
import net.minecraft.world.item.crafting.SmithingTransformRecipe;
import net.minecraft.world.item.crafting.TransmuteResult;

public class SmithingTransformRecipeBuilder {
	private final Ingredient template;
	private final Ingredient base;
	private final Ingredient addition;
	private final RecipeCategory category;
	private final Item result;
	private final Map<String, Criterion<?>> criteria = new LinkedHashMap();

	public SmithingTransformRecipeBuilder(Ingredient template, Ingredient base, Ingredient addition, RecipeCategory category, Item result) {
		this.category = category;
		this.template = template;
		this.base = base;
		this.addition = addition;
		this.result = result;
	}

	public static SmithingTransformRecipeBuilder smithing(Ingredient template, Ingredient base, Ingredient addition, RecipeCategory category, Item result) {
		return new SmithingTransformRecipeBuilder(template, base, addition, category, result);
	}

	public SmithingTransformRecipeBuilder unlocks(String key, Criterion<?> criterion) {
		this.criteria.put(key, criterion);
		return this;
	}

	public void save(RecipeOutput recipeOutput, String recipeId) {
		this.save(recipeOutput, ResourceKey.create(Registries.RECIPE, ResourceLocation.parse(recipeId)));
	}

	public void save(RecipeOutput output, ResourceKey<Recipe<?>> resourceKey) {
		this.ensureValid(resourceKey);
		Advancement.Builder builder = output.advancement()
			.addCriterion("has_the_recipe", RecipeUnlockedTrigger.unlocked(resourceKey))
			.rewards(AdvancementRewards.Builder.recipe(resourceKey))
			.requirements(Strategy.OR);
		this.criteria.forEach(builder::addCriterion);
		SmithingTransformRecipe smithingTransformRecipe = new SmithingTransformRecipe(
			Optional.of(this.template), this.base, Optional.of(this.addition), new TransmuteResult(this.result)
		);
		output.accept(resourceKey, smithingTransformRecipe, builder.build(resourceKey.location().withPrefix("recipes/" + this.category.getFolderName() + "/")));
	}

	private void ensureValid(ResourceKey<Recipe<?>> recipe) {
		if (this.criteria.isEmpty()) {
			throw new IllegalStateException("No way of obtaining recipe " + recipe.location());
		}
	}
}