package net.minecraft.commands.arguments;

import com.google.gson.JsonPrimitive;
import com.mojang.brigadier.StringReader;
import com.mojang.brigadier.arguments.ArgumentType;
import com.mojang.brigadier.context.CommandContext;
import com.mojang.brigadier.exceptions.CommandSyntaxException;
import com.mojang.brigadier.exceptions.DynamicCommandExceptionType;
import com.mojang.brigadier.suggestion.Suggestions;
import com.mojang.brigadier.suggestion.SuggestionsBuilder;
import com.mojang.serialization.Codec;
import com.mojang.serialization.JsonOps;
import java.util.Arrays;
import java.util.Collection;
import java.util.concurrent.CompletableFuture;
import java.util.function.Supplier;
import java.util.stream.Collectors;
import net.minecraft.commands.SharedSuggestionProvider;
import net.minecraft.network.chat.Component;
import net.minecraft.util.StringRepresentable;

public class StringRepresentableArgument<T extends Enum<T> & StringRepresentable> implements ArgumentType<T> {
	private static final DynamicCommandExceptionType ERROR_INVALID_VALUE = new DynamicCommandExceptionType(
		object -> Component.translatableEscape("argument.enum.invalid", object)
	);
	private final Codec<T> codec;
	private final Supplier<T[]> values;

	protected StringRepresentableArgument(Codec<T> codec, Supplier<T[]> values) {
		this.codec = codec;
		this.values = values;
	}

	public T parse(StringReader stringReader) throws CommandSyntaxException {
		String string = stringReader.readUnquotedString();
		return (T)this.codec
			.parse(JsonOps.INSTANCE, new JsonPrimitive(string))
			.result()
			.orElseThrow(() -> ERROR_INVALID_VALUE.createWithContext(stringReader, string));
	}

	@Override
	public <S> CompletableFuture<Suggestions> listSuggestions(CommandContext<S> commandContext, SuggestionsBuilder suggestionsBuilder) {
		return SharedSuggestionProvider.suggest(
			(Iterable<String>)Arrays.stream((Enum[])this.values.get())
				.map(object -> ((StringRepresentable)object).getSerializedName())
				.map(this::convertId)
				.collect(Collectors.toList()),
			suggestionsBuilder
		);
	}

	@Override
	public Collection<String> getExamples() {
		return (Collection<String>)Arrays.stream((Enum[])this.values.get())
			.map(object -> ((StringRepresentable)object).getSerializedName())
			.map(this::convertId)
			.limit(2L)
			.collect(Collectors.toList());
	}

	protected String convertId(String id) {
		return id;
	}
}