com.avatarproject.core.command.APTabCompleter.java Source code

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Here is the source code for com.avatarproject.core.command.APTabCompleter.java

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/*******************************************************************************
 * AvatarProject Core
 * Copyright (C) 2016  (AvatarProject), (jedk1)
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *******************************************************************************/
package com.avatarproject.core.command;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;

import org.apache.commons.lang.ArrayUtils;
import org.bukkit.Bukkit;
import org.bukkit.command.Command;
import org.bukkit.command.CommandSender;
import org.bukkit.command.TabCompleter;
import org.bukkit.entity.Player;

public class APTabCompleter implements TabCompleter {

    /**
     * Breaks down the possible list and returns what is applicable depending on
     * what the user has currently typed.
     * 
     * @author D4rKDeagle
     * 
     * @param args Args of the command. Provide all of them.
     * @param possibilitiesOfCompletion List of things that can be given
     */
    public static List<String> getPossibleCompletionsForGivenArgs(String[] args,
            List<String> possibilitiesOfCompletion) {
        String argumentToFindCompletionFor = args[args.length - 1];

        List<String> listOfPossibleCompletions = new ArrayList<String>();

        for (String foundString : possibilitiesOfCompletion) {
            if (foundString.regionMatches(true, 0, argumentToFindCompletionFor, 0,
                    argumentToFindCompletionFor.length())) {
                listOfPossibleCompletions.add(foundString);
            }
        }
        Collections.sort(listOfPossibleCompletions);
        return listOfPossibleCompletions;
    }

    public static List<String> getPossibleCompletionsForGivenArgs(String[] args,
            String[] possibilitiesOfCompletion) {
        return getPossibleCompletionsForGivenArgs(args, Arrays.asList(possibilitiesOfCompletion));
    }

    @Override
    public List<String> onTabComplete(CommandSender sender, Command cmd, String alias, String[] args) {
        List<String> complete = new ArrayList<String>();
        if (cmd.getName().equalsIgnoreCase("avatar")) {
            if (args.length == 1) {
                List<String> possible = new ArrayList<String>();
                for (APCommand command : APCommand.instances.values()) {
                    if (hasPermission(sender, command.getName())) {
                        possible.add(command.getAliases()[0]);
                    }
                }
                return getPossibleCompletionsForGivenArgs(args, possible);
            }
            if (args.length > 1) {
                for (APCommand command : APCommand.instances.values()) {
                    if (ArrayUtils.contains(command.getAliases(), args[0].toLowerCase())) {
                        if (command.getCompleters() != null) {
                            if (command.getCompleters().length >= (args.length - 1)) {
                                String[] completers = command.getCompleters()[(args.length - 2)];
                                if (Arrays.asList(completers).contains("%custom")) {
                                    completers = (String[]) ArrayUtils.removeElement(completers, "%custom");
                                    completers = (String[]) ArrayUtils.addAll(completers,
                                            command.tabComplete(sender, args));
                                }
                                if (Arrays.asList(completers).contains("%player")) {
                                    completers = (String[]) ArrayUtils.removeElement(completers, "%player");
                                    List<String> array = new ArrayList<String>();
                                    for (Player p : Bukkit.getOnlinePlayers()) {
                                        array.add(p.getName());
                                    }
                                    completers = (String[]) ArrayUtils.addAll(completers,
                                            array.toArray(new String[array.size()]));
                                }
                                return getPossibleCompletionsForGivenArgs(args, completers);
                            }
                        }
                    }
                }
            }
        }
        return complete;
    }

    private boolean hasPermission(CommandSender sender, String permission) {
        return sender.hasPermission("avatar.command." + permission);
    }
}