package net.minecraft.commands.arguments;

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 java.util.Collection;
import java.util.List;
import java.util.concurrent.CompletableFuture;
import net.minecraft.commands.CommandSourceStack;
import net.minecraft.commands.ParserUtils;
import net.minecraft.commands.SharedSuggestionProvider;
import net.minecraft.network.chat.Component;
import net.minecraft.world.inventory.SlotRange;
import net.minecraft.world.inventory.SlotRanges;

public class SlotsArgument implements ArgumentType<SlotRange> {
	private static final Collection<String> EXAMPLES = List.of("container.*", "container.5", "weapon");
	private static final DynamicCommandExceptionType ERROR_UNKNOWN_SLOT = new DynamicCommandExceptionType(id -> Component.translatableEscape("slot.unknown", id));

	public static SlotsArgument slots() {
		return new SlotsArgument();
	}

	public static SlotRange getSlots(final CommandContext<CommandSourceStack> context, final String name) {
		return context.getArgument(name, SlotRange.class);
	}

	public SlotRange parse(final StringReader reader) throws CommandSyntaxException {
		String name = ParserUtils.readWhile(reader, c -> c != ' ');
		SlotRange result = SlotRanges.nameToIds(name);
		if (result == null) {
			throw ERROR_UNKNOWN_SLOT.createWithContext(reader, name);
		} else {
			return result;
		}
	}

	@Override
	public <S> CompletableFuture<Suggestions> listSuggestions(final CommandContext<S> contextBuilder, final SuggestionsBuilder builder) {
		return SharedSuggestionProvider.suggest(SlotRanges.allNames(), builder);
	}

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