mcMMO/src/main/java/com/gmail/nossr50/commands/KrakenCommand.java

package com.gmail.nossr50.commands;

import java.util.ArrayList;
import java.util.List;
import java.util.Set;

import org.bukkit.command.Command;
import org.bukkit.command.CommandSender;
import org.bukkit.command.TabExecutor;
import org.bukkit.util.StringUtil;

import com.gmail.nossr50.datatypes.player.McMMOPlayer;
import com.gmail.nossr50.util.Permissions;
import com.gmail.nossr50.util.commands.CommandUtils;
import com.gmail.nossr50.util.player.UserManager;
import com.google.common.collect.ImmutableList;

public class KrakenCommand implements TabExecutor {
    @Override
    public boolean onCommand(CommandSender sender, Command command, String label, String[] args) {
        switch (args.length) {
            case 0:
                if (CommandUtils.noConsoleUsage(sender)) {
                    return true;
                }

                if (!Permissions.kraken(sender)) {
                    sender.sendMessage(command.getPermissionMessage());
                    return true;
                }

                UserManager.getPlayer(sender.getName()).getFishingManager().unleashTheKraken();
                return true;

            case 1:
                if (!Permissions.krakenOthers(sender)) {
                    sender.sendMessage(command.getPermissionMessage());
                    return true;
                }

                McMMOPlayer mcMMOPlayer = UserManager.getPlayer(args[0]);

                if (!CommandUtils.checkPlayerExistence(sender, args[0], mcMMOPlayer)) {
                    return true;
                }

                mcMMOPlayer.getFishingManager().unleashTheKraken();
                return true;

            default:
                return false;
        }
    }

    @Override
    public List<String> onTabComplete(CommandSender sender, Command command, String alias, String[] args) {
        switch (args.length) {
            case 1:
                Set<String> playerNames = UserManager.getPlayers().keySet();
                return StringUtil.copyPartialMatches(args[0], playerNames, new ArrayList<String>(playerNames.size()));
            default:
                return ImmutableList.of();
        }
    }
}