package net.minecraft.commands.arguments;

import com.mojang.brigadier.context.CommandContext;
import com.mojang.brigadier.exceptions.CommandSyntaxException;
import com.mojang.brigadier.exceptions.DynamicCommandExceptionType;
import com.mojang.serialization.DynamicOps;
import java.util.Arrays;
import java.util.Collection;
import net.minecraft.commands.CommandBuildContext;
import net.minecraft.commands.CommandSourceStack;
import net.minecraft.core.HolderLookup;
import net.minecraft.nbt.NbtOps;
import net.minecraft.nbt.SnbtGrammar;
import net.minecraft.nbt.Tag;
import net.minecraft.network.chat.Component;
import net.minecraft.network.chat.ComponentSerialization;
import net.minecraft.network.chat.ComponentUtils;
import net.minecraft.util.parsing.packrat.commands.CommandArgumentParser;
import net.minecraft.util.parsing.packrat.commands.ParserBasedArgument;
import net.minecraft.world.entity.Entity;
import org.jetbrains.annotations.Nullable;

public class ComponentArgument extends ParserBasedArgument<Component> {
	private static final Collection<String> EXAMPLES = Arrays.asList("\"hello world\"", "'hello world'", "\"\"", "{text:\"hello world\"}", "[\"\"]");
	public static final DynamicCommandExceptionType ERROR_INVALID_COMPONENT = new DynamicCommandExceptionType(
		object -> Component.translatableEscape("argument.component.invalid", object)
	);
	private static final DynamicOps<Tag> OPS = NbtOps.INSTANCE;
	private static final CommandArgumentParser<Tag> TAG_PARSER = SnbtGrammar.createParser(OPS);

	private ComponentArgument(HolderLookup.Provider registries) {
		super(TAG_PARSER.withCodec(registries.createSerializationContext(OPS), TAG_PARSER, ComponentSerialization.CODEC, ERROR_INVALID_COMPONENT));
	}

	public static Component getRawComponent(CommandContext<CommandSourceStack> context, String name) {
		return context.getArgument(name, Component.class);
	}

	public static Component getResolvedComponent(CommandContext<CommandSourceStack> context, String name, @Nullable Entity entity) throws CommandSyntaxException {
		return ComponentUtils.updateForEntity(context.getSource(), getRawComponent(context, name), entity, 0);
	}

	public static Component getResolvedComponent(CommandContext<CommandSourceStack> context, String name) throws CommandSyntaxException {
		return getResolvedComponent(context, name, context.getSource().getEntity());
	}

	public static ComponentArgument textComponent(CommandBuildContext context) {
		return new ComponentArgument(context);
	}

	@Override
	public Collection<String> getExamples() {
		return EXAMPLES;
	}
}