package kcauldron;

import kcauldron.updater.CommandSenderUpdateCallback;
import kcauldron.updater.KCauldronUpdater;
import kcauldron.updater.KVersionRetriever;

import org.bukkit.ChatColor;
import org.bukkit.command.Command;
import org.bukkit.command.CommandSender;

public class KCauldronCommand extends Command {
	public static final String NAME = "kc";
	public static final String CHECK = NAME + ".check";
	public static final String UPDATE = NAME + ".update";
	public static final String RESTART = NAME + ".restart";

	public KCauldronCommand() {
		super(NAME);

		StringBuilder builder = new StringBuilder();
		builder.append(String.format("/%s check - Check to update\n", NAME));
		builder.append(String
				.format("/%s update [version] - Update to specified or latest version\n",
						NAME));
		builder.append(String.format("/%s restart - Restart server\n", NAME));
		setUsage(builder.toString());

		setPermission("kcauldron");
	}

	public boolean testPermission(CommandSender target, String permission) {
		if (testPermissionSilent(target, permission)) {
			return true;
		}
		target.sendMessage(ChatColor.RED
				+ "I'm sorry, but you do not have permission to perform this command. Please contact the server administrators if you believe that this is in error.");
		return false;
	}

	public boolean testPermissionSilent(CommandSender target, String permission) {
		if (!super.testPermissionSilent(target)) {
			return false;
		}
		for (String p : permission.split(";"))
			if (target.hasPermission(p))
				return true;
		return false;
	}

	@Override
	public boolean execute(CommandSender sender, String commandLabel,
			String[] args) {
		if (!testPermission(sender))
			return true;
		if (args.length == 0) {
			sender.sendMessage(ChatColor.YELLOW + "Please specify action");
			sender.sendMessage(ChatColor.AQUA + usageMessage);
			return true;
		}
		String action = args[0];
		if ("check".equals(action)) {
			if (!testPermission(sender, CHECK))
				return true;
			sender.sendMessage(ChatColor.GREEN + "Initiated version check...");
			new KVersionRetriever(new CommandSenderUpdateCallback(sender),
					false);
		} else if ("update".equals(action)) {
			KCauldronUpdater.initUpdate(sender, args.length > 1 ? args[1]
					: null);
		} else if ("restart".equals(action)) {
			if (!testPermission(sender, RESTART))
				return true;
			KCauldron.restart();
		} else {
			sender.sendMessage(ChatColor.RED + "Unknown action");
		}
		return true;
	}

}