src/game/java/net/minecraft/commands/arguments/TeamArgument.java

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.Arrays;
import java.util.Collection;
import java.util.concurrent.CompletableFuture;
import net.minecraft.commands.CommandSourceStack;
import net.minecraft.commands.SharedSuggestionProvider;
import net.minecraft.network.chat.Component;
import net.minecraft.world.scores.PlayerTeam;
import net.minecraft.world.scores.Scoreboard;

public class TeamArgument implements ArgumentType<String> {
    private static final Collection<String> EXAMPLES = Arrays.asList("foo", "123");
    private static final DynamicCommandExceptionType ERROR_TEAM_NOT_FOUND = new DynamicCommandExceptionType(p_308388_ -> Component.translatableEscape("team.notFound", p_308388_));

    public static TeamArgument team() {
        return new TeamArgument();
    }

    public static PlayerTeam getTeam(CommandContext<CommandSourceStack> p_112092_, String p_112093_) throws CommandSyntaxException {
        String s = p_112092_.getArgument(p_112093_, String.class);
        Scoreboard scoreboard = p_112092_.getSource().getServer().getScoreboard();
        PlayerTeam playerteam = scoreboard.getPlayerTeam(s);
        if (playerteam == null) {
            throw ERROR_TEAM_NOT_FOUND.create(s);
        } else {
            return playerteam;
        }
    }

    public String parse(StringReader p_112090_) throws CommandSyntaxException {
        return p_112090_.readUnquotedString();
    }

    @Override
    public <S> CompletableFuture<Suggestions> listSuggestions(CommandContext<S> p_112098_, SuggestionsBuilder p_112099_) {
        return p_112098_.getSource() instanceof SharedSuggestionProvider
            ? SharedSuggestionProvider.suggest(((SharedSuggestionProvider)p_112098_.getSource()).getAllTeams(), p_112099_)
            : Suggestions.empty();
    }

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