mcMMO/src/main/java/com/gmail/nossr50/commands/experience/ConvertExperienceCommand.java

package com.gmail.nossr50.commands.experience;

import org.bukkit.command.Command;
import org.bukkit.command.CommandExecutor;
import org.bukkit.command.CommandSender;
import org.bukkit.entity.Player;

import com.gmail.nossr50.mcMMO;
import com.gmail.nossr50.datatypes.experience.FormulaType;
import com.gmail.nossr50.locale.LocaleLoader;
import com.gmail.nossr50.runnables.database.FormulaConversionTask;
import com.gmail.nossr50.util.player.UserManager;

public class ConvertExperienceCommand implements CommandExecutor {
    @Override
    public boolean onCommand(CommandSender sender, Command command, String label, String[] args) {
        switch (args.length) {
            case 2:
                FormulaType previousType = mcMMO.getFormulaManager().getPreviousFormulaType();
                FormulaType newType = FormulaType.getFormulaType(args[1].toUpperCase());

                if (newType == FormulaType.UNKNOWN) {
                    sender.sendMessage(LocaleLoader.getString("Commands.mcconvert.Experience.Invalid"));
                    return true;
                }

                if (previousType == newType) {
                    sender.sendMessage(LocaleLoader.getString("Commands.mcconvert.Experience.Same", newType.toString()));
                    return true;
                }

                sender.sendMessage(LocaleLoader.getString("Commands.mcconvert.Experience.Start", previousType.toString(), newType.toString()));

                UserManager.saveAll();
                UserManager.clearAll();

                new FormulaConversionTask(sender, newType).runTaskLater(mcMMO.p, 1);

                for (Player player : mcMMO.p.getServer().getOnlinePlayers()) {
                    UserManager.track(player);
                }

                return true;

            default:
                return false;
        }
    }
}