package net.knarcraft.paidsigns.command;

import net.knarcraft.paidsigns.utility.Tokenizer;
import org.bukkit.command.Command;
import org.bukkit.command.CommandSender;
import org.bukkit.command.TabCompleter;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;

import java.util.List;

/**
 * A tab completer with tokenized arguments
 */
public class TokenizedTabCompleter implements TabCompleter {

    protected List<String> arguments;
    protected int argumentSize;

    @Nullable
    @Override
    public List<String> onTabComplete(@NotNull CommandSender sender, @NotNull Command command, @NotNull String alias, @NotNull String[] args) {
        arguments = Tokenizer.tokenize(String.join(" ", args));
        if (args.length == 0) {
            argumentSize = 0;
        } else {
            argumentSize = args[args.length - 1].isEmpty() ? arguments.size() : arguments.size() - 1;
        }
        return null;
    }

}